<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ -->
<title>dist/build/Graphics/UI/Gtk/Gdk/Pixbuf.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a>
<a name="line-2"></a><span class='hs-comment'>{-# LINE 2 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-3"></a><span class='hs-comment'>-- -*-haskell-*-</span>
<a name="line-4"></a><span class='hs-comment'>-- GIMP Toolkit (GTK) Pixbuf</span>
<a name="line-5"></a><span class='hs-comment'>--</span>
<a name="line-6"></a><span class='hs-comment'>-- Author : Vincenzo Ciancia, Axel Simon</span>
<a name="line-7"></a><span class='hs-comment'>--</span>
<a name="line-8"></a><span class='hs-comment'>-- Created: 26 March 2002</span>
<a name="line-9"></a><span class='hs-comment'>--</span>
<a name="line-10"></a><span class='hs-comment'>-- Copyright (C) 2002-2005 Axel Simon, Vincenzo Ciancia</span>
<a name="line-11"></a><span class='hs-comment'>--</span>
<a name="line-12"></a><span class='hs-comment'>-- This library is free software; you can redistribute it and/or</span>
<a name="line-13"></a><span class='hs-comment'>-- modify it under the terms of the GNU Lesser General Public</span>
<a name="line-14"></a><span class='hs-comment'>-- License as published by the Free Software Foundation; either</span>
<a name="line-15"></a><span class='hs-comment'>-- version 2.1 of the License, or (at your option) any later version.</span>
<a name="line-16"></a><span class='hs-comment'>--</span>
<a name="line-17"></a><span class='hs-comment'>-- This library is distributed in the hope that it will be useful,</span>
<a name="line-18"></a><span class='hs-comment'>-- but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="line-19"></a><span class='hs-comment'>-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="line-20"></a><span class='hs-comment'>-- Lesser General Public License for more details.</span>
<a name="line-21"></a><span class='hs-comment'>--</span>
<a name="line-22"></a><span class='hs-comment'>-- TODO</span>
<a name="line-23"></a><span class='hs-comment'>--</span>
<a name="line-24"></a><span class='hs-comment'>-- if anybody writes an image manipulation program, do the checker board</span>
<a name="line-25"></a><span class='hs-comment'>-- functions: gdk_pixbuf_composite_color_simple and</span>
<a name="line-26"></a><span class='hs-comment'>-- gdk_pixbuf_composite_color. Moreover, do: pixbuf_saturate_and_pixelate</span>
<a name="line-27"></a><span class='hs-comment'>--</span>
<a name="line-28"></a><span class='hs-comment'>--</span>
<a name="line-29"></a><span class='hs-comment'>-- pixbuf loader</span>
<a name="line-30"></a><span class='hs-comment'>--</span>
<a name="line-31"></a><span class='hs-comment'>-- module interface</span>
<a name="line-32"></a><span class='hs-comment'>--</span>
<a name="line-33"></a><span class='hs-comment'>-- rendering function for Bitmaps and Pixmaps when the latter are added</span>
<a name="line-34"></a><span class='hs-comment'>--</span>
<a name="line-35"></a><span class='hs-comment'>-- |</span>
<a name="line-36"></a><span class='hs-comment'>-- Maintainer : gtk2hs-users@lists.sourceforge.net</span>
<a name="line-37"></a><span class='hs-comment'>-- Stability : provisional</span>
<a name="line-38"></a><span class='hs-comment'>-- Portability : portable (depends on GHC)</span>
<a name="line-39"></a><span class='hs-comment'>--</span>
<a name="line-40"></a><span class='hs-comment'>-- 'Pixbuf's are bitmap images in memory.</span>
<a name="line-41"></a><span class='hs-comment'>--</span>
<a name="line-42"></a><span class='hs-comment'>-- * A Pixbuf is used to represent images. It contains information</span>
<a name="line-43"></a><span class='hs-comment'>-- about the image's pixel data, its color space, bits per sample, width</span>
<a name="line-44"></a><span class='hs-comment'>-- and height, and the rowstride or number of bytes between rows.</span>
<a name="line-45"></a><span class='hs-comment'>--</span>
<a name="line-46"></a><span class='hs-comment'>-- * This module contains functions to scale and crop</span>
<a name="line-47"></a><span class='hs-comment'>-- 'Pixbuf's and to scale and crop a 'Pixbuf' and</span>
<a name="line-48"></a><span class='hs-comment'>-- compose the result with an existing image.</span>
<a name="line-49"></a><span class='hs-comment'>--</span>
<a name="line-50"></a><span class='hs-comment'>-- * 'Pixbuf's can be displayed on screen by either creating an 'Image' that</span>
<a name="line-51"></a><span class='hs-comment'>-- from the 'Pixbuf' or by rendering (part of) the 'Pixbuf' into a</span>
<a name="line-52"></a><span class='hs-comment'>-- vanilla widget like 'DrawWindow' using</span>
<a name="line-53"></a><span class='hs-comment'>-- 'Graphics.UI.Gtk.Gdk.Drawable.drawPixbuf'.</span>
<a name="line-54"></a><span class='hs-comment'>--</span>
<a name="line-55"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>UI</span><span class='hs-varop'>.</span><span class='hs-conid'>Gtk</span><span class='hs-varop'>.</span><span class='hs-conid'>Gdk</span><span class='hs-varop'>.</span><span class='hs-conid'>Pixbuf</span> <span class='hs-layout'>(</span>
<a name="line-56"></a><span class='hs-comment'>-- * Class Hierarchy</span>
<a name="line-57"></a><span class='hs-comment'>-- |</span>
<a name="line-58"></a><span class='hs-comment'>-- @</span>
<a name="line-59"></a><span class='hs-comment'>-- | 'GObject'</span>
<a name="line-60"></a><span class='hs-comment'>-- | +----Pixbuf</span>
<a name="line-61"></a><span class='hs-comment'>-- @</span>
<a name="line-62"></a>
<a name="line-63"></a><span class='hs-comment'>-- * Types</span>
<a name="line-64"></a> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>,</span>
<a name="line-65"></a> <span class='hs-conid'>PixbufClass</span><span class='hs-layout'>,</span>
<a name="line-66"></a> <span class='hs-varid'>castToPixbuf</span><span class='hs-layout'>,</span> <span class='hs-varid'>gTypePixbuf</span><span class='hs-layout'>,</span>
<a name="line-67"></a> <span class='hs-varid'>toPixbuf</span><span class='hs-layout'>,</span>
<a name="line-68"></a> <span class='hs-conid'>PixbufError</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-69"></a> <span class='hs-conid'>Colorspace</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-70"></a>
<a name="line-71"></a><span class='hs-comment'>-- * Constructors</span>
<a name="line-72"></a> <span class='hs-varid'>pixbufNew</span><span class='hs-layout'>,</span>
<a name="line-73"></a> <span class='hs-varid'>pixbufNewFromFile</span><span class='hs-layout'>,</span>
<a name="line-74"></a>
<a name="line-75"></a> <span class='hs-varid'>pixbufNewFromFileAtSize</span><span class='hs-layout'>,</span>
<a name="line-76"></a>
<a name="line-77"></a>
<a name="line-78"></a> <span class='hs-varid'>pixbufNewFromFileAtScale</span><span class='hs-layout'>,</span>
<a name="line-79"></a>
<a name="line-80"></a> <span class='hs-varid'>pixbufNewFromInline</span><span class='hs-layout'>,</span>
<a name="line-81"></a> <span class='hs-conid'>InlineImage</span><span class='hs-layout'>,</span>
<a name="line-82"></a> <span class='hs-varid'>pixbufNewSubpixbuf</span><span class='hs-layout'>,</span>
<a name="line-83"></a> <span class='hs-varid'>pixbufNewFromXPMData</span><span class='hs-layout'>,</span>
<a name="line-84"></a>
<a name="line-85"></a><span class='hs-comment'>-- * Methods</span>
<a name="line-86"></a> <span class='hs-varid'>pixbufGetColorSpace</span><span class='hs-layout'>,</span>
<a name="line-87"></a> <span class='hs-varid'>pixbufGetNChannels</span><span class='hs-layout'>,</span>
<a name="line-88"></a> <span class='hs-varid'>pixbufGetHasAlpha</span><span class='hs-layout'>,</span>
<a name="line-89"></a> <span class='hs-varid'>pixbufGetBitsPerSample</span><span class='hs-layout'>,</span>
<a name="line-90"></a> <span class='hs-conid'>PixbufData</span><span class='hs-layout'>,</span>
<a name="line-91"></a> <span class='hs-varid'>pixbufGetPixels</span><span class='hs-layout'>,</span>
<a name="line-92"></a> <span class='hs-varid'>pixbufGetWidth</span><span class='hs-layout'>,</span>
<a name="line-93"></a> <span class='hs-varid'>pixbufGetHeight</span><span class='hs-layout'>,</span>
<a name="line-94"></a> <span class='hs-varid'>pixbufGetRowstride</span><span class='hs-layout'>,</span>
<a name="line-95"></a> <span class='hs-varid'>pixbufGetOption</span><span class='hs-layout'>,</span>
<a name="line-96"></a> <span class='hs-conid'>ImageFormat</span><span class='hs-layout'>,</span>
<a name="line-97"></a> <span class='hs-varid'>pixbufGetFormats</span><span class='hs-layout'>,</span>
<a name="line-98"></a> <span class='hs-varid'>pixbufSave</span><span class='hs-layout'>,</span>
<a name="line-99"></a> <span class='hs-varid'>pixbufCopy</span><span class='hs-layout'>,</span>
<a name="line-100"></a> <span class='hs-conid'>InterpType</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-101"></a> <span class='hs-varid'>pixbufScaleSimple</span><span class='hs-layout'>,</span>
<a name="line-102"></a> <span class='hs-varid'>pixbufScale</span><span class='hs-layout'>,</span>
<a name="line-103"></a> <span class='hs-varid'>pixbufComposite</span><span class='hs-layout'>,</span>
<a name="line-104"></a>
<a name="line-105"></a> <span class='hs-varid'>pixbufFlipHorizontally</span><span class='hs-layout'>,</span>
<a name="line-106"></a> <span class='hs-varid'>pixbufFlipHorazontally</span><span class='hs-layout'>,</span>
<a name="line-107"></a> <span class='hs-varid'>pixbufFlipVertically</span><span class='hs-layout'>,</span>
<a name="line-108"></a> <span class='hs-varid'>pixbufRotateSimple</span><span class='hs-layout'>,</span>
<a name="line-109"></a> <span class='hs-conid'>PixbufRotation</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-110"></a>
<a name="line-111"></a> <span class='hs-varid'>pixbufAddAlpha</span><span class='hs-layout'>,</span>
<a name="line-112"></a> <span class='hs-varid'>pixbufCopyArea</span><span class='hs-layout'>,</span>
<a name="line-113"></a> <span class='hs-varid'>pixbufFill</span><span class='hs-layout'>,</span>
<a name="line-114"></a> <span class='hs-varid'>pixbufGetFromDrawable</span><span class='hs-layout'>,</span>
<a name="line-115"></a>
<a name="line-116"></a> <span class='hs-varid'>pixbufRenderThresholdAlpha</span><span class='hs-layout'>,</span>
<a name="line-117"></a> <span class='hs-varid'>pixbufRenderPixmapAndMaskForColormap</span>
<a name="line-118"></a> <span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-119"></a>
<a name="line-120"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Control</span><span class='hs-varop'>.</span><span class='hs-conid'>Monad</span> <span class='hs-layout'>(</span><span class='hs-varid'>liftM</span><span class='hs-layout'>)</span>
<a name="line-121"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Ix</span>
<a name="line-122"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Glib</span><span class='hs-varop'>.</span><span class='hs-conid'>FFI</span>
<a name="line-123"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Glib</span><span class='hs-varop'>.</span><span class='hs-conid'>UTFString</span>
<a name="line-124"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Glib</span><span class='hs-varop'>.</span><span class='hs-conid'>GDateTime</span>
<a name="line-125"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Glib</span><span class='hs-varop'>.</span><span class='hs-conid'>GObject</span>
<a name="line-126"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>UI</span><span class='hs-varop'>.</span><span class='hs-conid'>Gtk</span><span class='hs-varop'>.</span><span class='hs-conid'>Types</span>
<a name="line-127"></a><span class='hs-comment'>{-# LINE 126 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-128"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>UI</span><span class='hs-varop'>.</span><span class='hs-conid'>Gtk</span><span class='hs-varop'>.</span><span class='hs-conid'>General</span><span class='hs-varop'>.</span><span class='hs-conid'>Structs</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-129"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>System</span><span class='hs-varop'>.</span><span class='hs-conid'>Glib</span><span class='hs-varop'>.</span><span class='hs-conid'>GError</span> <span class='hs-layout'>(</span><span class='hs-conid'>GError</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>GErrorClass</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span> <span class='hs-conid'>GErrorDomain</span><span class='hs-layout'>,</span>
<a name="line-130"></a> <span class='hs-varid'>propagateGError</span><span class='hs-layout'>)</span>
<a name="line-131"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>UI</span><span class='hs-varop'>.</span><span class='hs-conid'>Gtk</span><span class='hs-varop'>.</span><span class='hs-conid'>Gdk</span><span class='hs-varop'>.</span><span class='hs-conid'>PixbufData</span> <span class='hs-layout'>(</span> <span class='hs-conid'>PixbufData</span><span class='hs-layout'>,</span> <span class='hs-varid'>mkPixbufData</span> <span class='hs-layout'>)</span>
<a name="line-132"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Graphics</span><span class='hs-varop'>.</span><span class='hs-conid'>UI</span><span class='hs-varop'>.</span><span class='hs-conid'>Gtk</span><span class='hs-varop'>.</span><span class='hs-conid'>Gdk</span><span class='hs-varop'>.</span><span class='hs-conid'>Pixmap</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bitmap</span><span class='hs-layout'>,</span> <span class='hs-conid'>Pixmap</span><span class='hs-layout'>)</span>
<a name="line-133"></a>
<a name="line-134"></a>
<a name="line-135"></a><span class='hs-comment'>{-# LINE 133 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-136"></a>
<a name="line-137"></a><a name="PixbufError"></a><span class='hs-comment'>-- | Error codes for loading image files.</span>
<a name="line-138"></a><a name="PixbufError"></a><span class='hs-comment'>--</span>
<a name="line-139"></a><a name="PixbufError"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PixbufError</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufErrorCorruptImage</span>
<a name="line-140"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufErrorInsufficientMemory</span>
<a name="line-141"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufErrorBadOption</span>
<a name="line-142"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufErrorUnknownType</span>
<a name="line-143"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufErrorUnsupportedOperation</span>
<a name="line-144"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufErrorFailed</span>
<a name="line-145"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Enum</span><span class='hs-layout'>)</span>
<a name="line-146"></a>
<a name="line-147"></a><span class='hs-comment'>{-# LINE 137 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-148"></a>
<a name="line-149"></a><a name="Colorspace"></a><span class='hs-comment'>-- | Enumerate all supported color spaces.</span>
<a name="line-150"></a><a name="Colorspace"></a><span class='hs-comment'>--</span>
<a name="line-151"></a><a name="Colorspace"></a><span class='hs-comment'>-- * Only RGB is supported right now.</span>
<a name="line-152"></a><a name="Colorspace"></a><span class='hs-comment'>--</span>
<a name="line-153"></a><a name="Colorspace"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Colorspace</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>ColorspaceRgb</span>
<a name="line-154"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Enum</span><span class='hs-layout'>)</span>
<a name="line-155"></a>
<a name="line-156"></a><span class='hs-comment'>{-# LINE 143 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-157"></a>
<a name="line-158"></a><a name="pixbufGetColorSpace"></a><span class='hs-comment'>-- | Queries the color space of a pixbuf.</span>
<a name="line-159"></a><span class='hs-comment'>--</span>
<a name="line-160"></a><span class='hs-definition'>pixbufGetColorSpace</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Colorspace</span>
<a name="line-161"></a><span class='hs-definition'>pixbufGetColorSpace</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-layout'>(</span><span class='hs-varid'>toEnum</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromIntegral</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-162"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_colorspace</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-163"></a>
<a name="line-164"></a><a name="pixbufGetNChannels"></a><span class='hs-comment'>-- | Queries the number of colors for each pixel.</span>
<a name="line-165"></a><span class='hs-comment'>--</span>
<a name="line-166"></a><span class='hs-comment'>-- * This function returns 3 for an RGB image without alpha (transparency)</span>
<a name="line-167"></a><span class='hs-comment'>-- channel, 4 for an RGB image with alpha channel.</span>
<a name="line-168"></a><span class='hs-comment'>--</span>
<a name="line-169"></a><span class='hs-definition'>pixbufGetNChannels</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-170"></a><span class='hs-definition'>pixbufGetNChannels</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span>
<a name="line-171"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_n_channels</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-172"></a>
<a name="line-173"></a><a name="pixbufGetHasAlpha"></a><span class='hs-comment'>-- | Query if the image has an alpha channel.</span>
<a name="line-174"></a><span class='hs-comment'>--</span>
<a name="line-175"></a><span class='hs-comment'>-- * The alpha channel determines the opaqueness of the pixel.</span>
<a name="line-176"></a><span class='hs-comment'>--</span>
<a name="line-177"></a><span class='hs-definition'>pixbufGetHasAlpha</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Bool</span>
<a name="line-178"></a><span class='hs-definition'>pixbufGetHasAlpha</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span>
<a name="line-179"></a> <span class='hs-varid'>liftM</span> <span class='hs-varid'>toBool</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_has_alpha</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-180"></a>
<a name="line-181"></a><a name="pixbufGetBitsPerSample"></a><span class='hs-comment'>-- | Queries the number of bits for each color.</span>
<a name="line-182"></a><span class='hs-comment'>--</span>
<a name="line-183"></a><span class='hs-comment'>-- * Each pixel is has a number of cannels for each pixel, each channel</span>
<a name="line-184"></a><span class='hs-comment'>-- has this many bits.</span>
<a name="line-185"></a><span class='hs-comment'>--</span>
<a name="line-186"></a><span class='hs-definition'>pixbufGetBitsPerSample</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-187"></a><span class='hs-definition'>pixbufGetBitsPerSample</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span>
<a name="line-188"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_bits_per_sample</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-189"></a>
<a name="line-190"></a><a name="pixbufGetPixels"></a><span class='hs-comment'>-- | Retrieve the internal array of raw image data.</span>
<a name="line-191"></a><span class='hs-comment'>--</span>
<a name="line-192"></a><span class='hs-comment'>-- * Image data in a pixbuf is stored in memory in uncompressed,</span>
<a name="line-193"></a><span class='hs-comment'>-- packed format. Rows in the image are stored top to bottom, and in each</span>
<a name="line-194"></a><span class='hs-comment'>-- row pixels are stored from left to right. There may be padding at the</span>
<a name="line-195"></a><span class='hs-comment'>-- end of a row. The "rowstride" value of a pixbuf, as returned by</span>
<a name="line-196"></a><span class='hs-comment'>-- 'pixbufGetRowstride', indicates the number of bytes between rows.</span>
<a name="line-197"></a><span class='hs-comment'>--</span>
<a name="line-198"></a><span class='hs-comment'>-- * The returned array is a flat representation of a three dimensional</span>
<a name="line-199"></a><span class='hs-comment'>-- array: x-coordiante, y-coordinate and several channels for each color.</span>
<a name="line-200"></a><span class='hs-comment'>-- The number of channels is usually 3 for plain RGB data or 4 for</span>
<a name="line-201"></a><span class='hs-comment'>-- RGB data with an alpha channel. To read or write a specific pixel</span>
<a name="line-202"></a><span class='hs-comment'>-- use the formula: @p = y * rowstride + x * nChannels@ for the pixel.</span>
<a name="line-203"></a><span class='hs-comment'>-- If the array contains bytes (or 'Word8's), @p+0@ is the red value,</span>
<a name="line-204"></a><span class='hs-comment'>-- @p+1@ green, @p+2@ blue and @p+3@ the alpha (transparency) channel</span>
<a name="line-205"></a><span class='hs-comment'>-- if present. If the alpha channel is present, the array can accessed</span>
<a name="line-206"></a><span class='hs-comment'>-- as an array over 'Word32' to modify a whole pixel at a time. See also</span>
<a name="line-207"></a><span class='hs-comment'>-- 'pixbufGetBitsPerSample' and 'pixbufGetNChannels'.</span>
<a name="line-208"></a><span class='hs-comment'>--</span>
<a name="line-209"></a><span class='hs-comment'>-- * Calling this function without explicitly giving it a type will often</span>
<a name="line-210"></a><span class='hs-comment'>-- lead to a compiler error since the type parameter @e@ is underspecified.</span>
<a name="line-211"></a><span class='hs-comment'>-- If this happens the function can be explicitly typed:</span>
<a name="line-212"></a><span class='hs-comment'>-- @pbData <- (pixbufGetPixels pb :: IO (PixbufData Int Word8))@</span>
<a name="line-213"></a><span class='hs-comment'>--</span>
<a name="line-214"></a><span class='hs-comment'>-- * If modifying an image through Haskell\'s array interface is not</span>
<a name="line-215"></a><span class='hs-comment'>-- fast enough, it is possible to use 'unsafeRead' and</span>
<a name="line-216"></a><span class='hs-comment'>-- 'unsafeWrite' which have the same type signatures</span>
<a name="line-217"></a><span class='hs-comment'>-- as 'readArray' and 'writeArray'.</span>
<a name="line-218"></a><span class='hs-comment'>-- Note that these are internal</span>
<a name="line-219"></a><span class='hs-comment'>-- functions that might change with GHC.</span>
<a name="line-220"></a><span class='hs-comment'>--</span>
<a name="line-221"></a><span class='hs-definition'>pixbufGetPixels</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Storable</span> <span class='hs-varid'>e</span> <span class='hs-keyglyph'>=></span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>PixbufData</span> <span class='hs-conid'>Int</span> <span class='hs-varid'>e</span><span class='hs-layout'>)</span>
<a name="line-222"></a><span class='hs-definition'>pixbufGetPixels</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>do</span>
<a name="line-223"></a> <span class='hs-varid'>pixPtr_</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_pixels</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-224"></a> <span class='hs-varid'>chan</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pixbufGetNChannels</span> <span class='hs-varid'>pb</span>
<a name="line-225"></a> <span class='hs-varid'>bits</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pixbufGetBitsPerSample</span> <span class='hs-varid'>pb</span>
<a name="line-226"></a> <span class='hs-varid'>w</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pixbufGetWidth</span> <span class='hs-varid'>pb</span>
<a name="line-227"></a> <span class='hs-varid'>h</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pixbufGetHeight</span> <span class='hs-varid'>pb</span>
<a name="line-228"></a> <span class='hs-varid'>r</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>pixbufGetRowstride</span> <span class='hs-varid'>pb</span>
<a name="line-229"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>pixPtr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>castPtr</span> <span class='hs-varid'>pixPtr_</span>
<a name="line-230"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>bytes</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>h</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span><span class='hs-varop'>*</span><span class='hs-varid'>r</span><span class='hs-varop'>+</span><span class='hs-varid'>w</span><span class='hs-varop'>*</span><span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>chan</span><span class='hs-varop'>*</span><span class='hs-varid'>bits</span><span class='hs-varop'>+</span><span class='hs-num'>7</span><span class='hs-layout'>)</span> <span class='hs-varop'>`div`</span> <span class='hs-num'>8</span><span class='hs-layout'>)</span>
<a name="line-231"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>mkPixbufData</span> <span class='hs-varid'>pb</span> <span class='hs-varid'>pixPtr</span> <span class='hs-varid'>bytes</span><span class='hs-layout'>)</span>
<a name="line-232"></a>
<a name="line-233"></a><a name="pixbufGetWidth"></a><span class='hs-comment'>-- | Queries the width of this image.</span>
<a name="line-234"></a><span class='hs-comment'>--</span>
<a name="line-235"></a><span class='hs-definition'>pixbufGetWidth</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-236"></a><span class='hs-definition'>pixbufGetWidth</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span>
<a name="line-237"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_width</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-238"></a>
<a name="line-239"></a><a name="pixbufGetHeight"></a><span class='hs-comment'>-- | Queries the height of this image.</span>
<a name="line-240"></a><span class='hs-comment'>--</span>
<a name="line-241"></a><span class='hs-definition'>pixbufGetHeight</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-242"></a><span class='hs-definition'>pixbufGetHeight</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span>
<a name="line-243"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_height</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-244"></a>
<a name="line-245"></a><a name="pixbufGetRowstride"></a><span class='hs-comment'>-- | Queries the rowstride of this image.</span>
<a name="line-246"></a><span class='hs-comment'>--</span>
<a name="line-247"></a><span class='hs-comment'>-- * Queries the rowstride of a pixbuf, which is the number of bytes between</span>
<a name="line-248"></a><span class='hs-comment'>-- rows. Use this value to caculate the offset to a certain row.</span>
<a name="line-249"></a><span class='hs-comment'>--</span>
<a name="line-250"></a><span class='hs-definition'>pixbufGetRowstride</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Int</span>
<a name="line-251"></a><span class='hs-definition'>pixbufGetRowstride</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span>
<a name="line-252"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_rowstride</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-253"></a>
<a name="line-254"></a><a name="pixbufGetOption"></a><span class='hs-comment'>-- | Returns an attribut of an image.</span>
<a name="line-255"></a><span class='hs-comment'>--</span>
<a name="line-256"></a><span class='hs-comment'>-- * Looks up if some information was stored under the @key@ when</span>
<a name="line-257"></a><span class='hs-comment'>-- this image was saved.</span>
<a name="line-258"></a><span class='hs-comment'>--</span>
<a name="line-259"></a><span class='hs-definition'>pixbufGetOption</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span>
<a name="line-260"></a><span class='hs-definition'>pixbufGetOption</span> <span class='hs-varid'>pb</span> <span class='hs-varid'>key</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>withUTFString</span> <span class='hs-varid'>key</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>strPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-261"></a> <span class='hs-varid'>resPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_option</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span> <span class='hs-varid'>strPtr</span>
<a name="line-262"></a> <span class='hs-keyword'>if</span> <span class='hs-layout'>(</span><span class='hs-varid'>resPtr</span><span class='hs-varop'>==</span><span class='hs-varid'>nullPtr</span><span class='hs-layout'>)</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>return</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyword'>else</span>
<a name="line-263"></a> <span class='hs-varid'>liftM</span> <span class='hs-conid'>Just</span> <span class='hs-varop'>$</span> <span class='hs-varid'>peekUTFString</span> <span class='hs-varid'>resPtr</span>
<a name="line-264"></a>
<a name="line-265"></a><a name="pixbufErrorDomain"></a><span class='hs-comment'>-- helper functions</span>
<a name="line-266"></a><span class='hs-definition'>pixbufErrorDomain</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>GErrorDomain</span>
<a name="line-267"></a><span class='hs-definition'>pixbufErrorDomain</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>gdk_pixbuf_error_quark</span>
<a name="line-268"></a><span class='hs-comment'>{-# LINE 254 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-269"></a>
<a name="line-270"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>GErrorClass</span> <span class='hs-conid'>PixbufError</span> <span class='hs-keyword'>where</span>
<a name="line-271"></a> <span class='hs-varid'>gerrorDomain</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pixbufErrorDomain</span>
<a name="line-272"></a>
<a name="line-273"></a>
<a name="line-274"></a><a name="pixbufNewFromFile"></a><span class='hs-comment'>-- | Load an image synchonously.</span>
<a name="line-275"></a><span class='hs-comment'>--</span>
<a name="line-276"></a><span class='hs-comment'>-- * Use this function to load only small images as this call will block.</span>
<a name="line-277"></a><span class='hs-comment'>--</span>
<a name="line-278"></a><span class='hs-comment'>-- * If an error occurs, the function will throw an exception that can</span>
<a name="line-279"></a><span class='hs-comment'>-- be caught using e.g. 'System.Glib.GError.catchGErrorJust' and one of the</span>
<a name="line-280"></a><span class='hs-comment'>-- error codes in 'PixbufError'.</span>
<a name="line-281"></a><span class='hs-comment'>--</span>
<a name="line-282"></a><span class='hs-definition'>pixbufNewFromFile</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-283"></a><span class='hs-definition'>pixbufNewFromFile</span> <span class='hs-varid'>fname</span> <span class='hs-keyglyph'>=</span>
<a name="line-284"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-285"></a> <span class='hs-varid'>propagateGError</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>errPtrPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-286"></a> <span class='hs-varid'>withUTFString</span> <span class='hs-varid'>fname</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>strPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-287"></a>
<a name="line-288"></a>
<a name="line-289"></a>
<a name="line-290"></a> <span class='hs-varid'>gdk_pixbuf_new_from_file</span>
<a name="line-291"></a><span class='hs-comment'>{-# LINE 276 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-292"></a>
<a name="line-293"></a> <span class='hs-varid'>strPtr</span> <span class='hs-varid'>errPtrPtr</span>
<a name="line-294"></a>
<a name="line-295"></a>
<a name="line-296"></a><a name="pixbufNewFromFileAtSize"></a><span class='hs-comment'>-- | Creates a new pixbuf by loading an image from a file. The file format is</span>
<a name="line-297"></a><span class='hs-comment'>-- detected automatically. The image will be scaled to fit in the requested</span>
<a name="line-298"></a><span class='hs-comment'>-- size, preserving the image's aspect ratio.</span>
<a name="line-299"></a><span class='hs-comment'>--</span>
<a name="line-300"></a><span class='hs-comment'>-- * If an error occurs, the function will throw an exception that can</span>
<a name="line-301"></a><span class='hs-comment'>-- be caught using e.g. 'System.Glib.GError.catchGErrorJust' and one of the</span>
<a name="line-302"></a><span class='hs-comment'>-- error codes in 'PixbufError'.</span>
<a name="line-303"></a><span class='hs-comment'>--</span>
<a name="line-304"></a><span class='hs-comment'>-- * Available since Gtk+ version 2.4</span>
<a name="line-305"></a><span class='hs-comment'>--</span>
<a name="line-306"></a><span class='hs-definition'>pixbufNewFromFileAtSize</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>String</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-307"></a><span class='hs-definition'>pixbufNewFromFileAtSize</span> <span class='hs-varid'>filename</span> <span class='hs-varid'>width</span> <span class='hs-varid'>height</span> <span class='hs-keyglyph'>=</span>
<a name="line-308"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-309"></a> <span class='hs-varid'>propagateGError</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>errPtrPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-310"></a> <span class='hs-varid'>withUTFString</span> <span class='hs-varid'>filename</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>filenamePtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-311"></a>
<a name="line-312"></a>
<a name="line-313"></a>
<a name="line-314"></a> <span class='hs-varid'>gdk_pixbuf_new_from_file_at_size</span>
<a name="line-315"></a><span class='hs-comment'>{-# LINE 299 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-316"></a>
<a name="line-317"></a> <span class='hs-varid'>filenamePtr</span>
<a name="line-318"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span>
<a name="line-319"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>height</span><span class='hs-layout'>)</span>
<a name="line-320"></a> <span class='hs-varid'>errPtrPtr</span>
<a name="line-321"></a>
<a name="line-322"></a>
<a name="line-323"></a>
<a name="line-324"></a><a name="pixbufNewFromFileAtScale"></a><span class='hs-comment'>-- | Creates a new pixbuf by loading an image from a file. The file format is</span>
<a name="line-325"></a><span class='hs-comment'>-- detected automatically. The image will be scaled to fit in the requested</span>
<a name="line-326"></a><span class='hs-comment'>-- size, optionally preserving the image's aspect ratio.</span>
<a name="line-327"></a><span class='hs-comment'>--</span>
<a name="line-328"></a><span class='hs-comment'>-- When preserving the aspect ratio, a width of -1 will cause the image to be</span>
<a name="line-329"></a><span class='hs-comment'>-- scaled to the exact given height, and a height of -1 will cause the image to</span>
<a name="line-330"></a><span class='hs-comment'>-- be scaled to the exact given width. When not preserving aspect ratio, a width</span>
<a name="line-331"></a><span class='hs-comment'>-- or height of -1 means to not scale the image at all in that dimension.</span>
<a name="line-332"></a><span class='hs-comment'>-- Negative values for width and height are allowed since Gtk+ 2.8.</span>
<a name="line-333"></a><span class='hs-comment'>--</span>
<a name="line-334"></a><span class='hs-comment'>-- * If an error occurs, the function will throw an exception that can</span>
<a name="line-335"></a><span class='hs-comment'>-- be caught using e.g. 'System.Glib.GError.catchGErrorJust' and one of the</span>
<a name="line-336"></a><span class='hs-comment'>-- error codes in 'PixbufError'.</span>
<a name="line-337"></a><span class='hs-comment'>--</span>
<a name="line-338"></a><span class='hs-comment'>-- * Available since Gtk+ version 2.6</span>
<a name="line-339"></a><span class='hs-comment'>--</span>
<a name="line-340"></a><span class='hs-definition'>pixbufNewFromFileAtScale</span> <span class='hs-keyglyph'>::</span>
<a name="line-341"></a> <span class='hs-conid'>String</span> <span class='hs-comment'>-- ^ the name of the file</span>
<a name="line-342"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ target width</span>
<a name="line-343"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ target height</span>
<a name="line-344"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-comment'>-- ^ whether to preserve the aspect ratio</span>
<a name="line-345"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-346"></a><span class='hs-definition'>pixbufNewFromFileAtScale</span> <span class='hs-varid'>filename</span> <span class='hs-varid'>width</span> <span class='hs-varid'>height</span> <span class='hs-varid'>preserveAspectRatio</span> <span class='hs-keyglyph'>=</span>
<a name="line-347"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-348"></a> <span class='hs-varid'>propagateGError</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>errPtrPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-349"></a> <span class='hs-varid'>withUTFString</span> <span class='hs-varid'>filename</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>filenamePtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-350"></a>
<a name="line-351"></a>
<a name="line-352"></a>
<a name="line-353"></a> <span class='hs-varid'>gdk_pixbuf_new_from_file_at_scale</span>
<a name="line-354"></a><span class='hs-comment'>{-# LINE 337 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-355"></a>
<a name="line-356"></a> <span class='hs-varid'>filenamePtr</span>
<a name="line-357"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span>
<a name="line-358"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>height</span><span class='hs-layout'>)</span>
<a name="line-359"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-varid'>preserveAspectRatio</span><span class='hs-layout'>)</span>
<a name="line-360"></a> <span class='hs-varid'>errPtrPtr</span>
<a name="line-361"></a>
<a name="line-362"></a>
<a name="line-363"></a><a name="ImageFormat"></a><span class='hs-comment'>-- | A string representing an image file format.</span>
<a name="line-364"></a><a name="ImageFormat"></a><span class='hs-comment'>--</span>
<a name="line-365"></a><a name="ImageFormat"></a><span class='hs-keyword'>type</span> <span class='hs-conid'>ImageFormat</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>String</span>
<a name="line-366"></a>
<a name="line-367"></a><a name="pixbufGetFormats"></a><span class='hs-comment'>-- constant pixbufGetFormats A list of valid image file formats.</span>
<a name="line-368"></a><span class='hs-comment'>--</span>
<a name="line-369"></a><span class='hs-definition'>pixbufGetFormats</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>ImageFormat</span><span class='hs-keyglyph'>]</span>
<a name="line-370"></a>
<a name="line-371"></a><span class='hs-definition'>pixbufGetFormats</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span><span class='hs-str'>"png"</span><span class='hs-layout'>,</span><span class='hs-str'>"bmp"</span><span class='hs-layout'>,</span><span class='hs-str'>"wbmp"</span><span class='hs-layout'>,</span> <span class='hs-str'>"gif"</span><span class='hs-layout'>,</span><span class='hs-str'>"ico"</span><span class='hs-layout'>,</span><span class='hs-str'>"ani"</span><span class='hs-layout'>,</span><span class='hs-str'>"jpeg"</span><span class='hs-layout'>,</span><span class='hs-str'>"pnm"</span><span class='hs-layout'>,</span>
<a name="line-372"></a> <span class='hs-str'>"ras"</span><span class='hs-layout'>,</span><span class='hs-str'>"tiff"</span><span class='hs-layout'>,</span><span class='hs-str'>"xpm"</span><span class='hs-layout'>,</span><span class='hs-str'>"xbm"</span><span class='hs-layout'>,</span><span class='hs-str'>"tga"</span><span class='hs-keyglyph'>]</span>
<a name="line-373"></a>
<a name="line-374"></a><a name="pixbufSave"></a><span class='hs-comment'>-- | Save an image to disk.</span>
<a name="line-375"></a><span class='hs-comment'>--</span>
<a name="line-376"></a><span class='hs-comment'>-- * The function takes a list of key - value pairs to specify</span>
<a name="line-377"></a><span class='hs-comment'>-- either how an image is saved or to actually save this additional</span>
<a name="line-378"></a><span class='hs-comment'>-- data with the image. JPEG images can be saved with a \"quality\"</span>
<a name="line-379"></a><span class='hs-comment'>-- parameter; its value should be in the range [0,100]. Text chunks</span>
<a name="line-380"></a><span class='hs-comment'>-- can be attached to PNG images by specifying parameters of the form</span>
<a name="line-381"></a><span class='hs-comment'>-- \"tEXt::key\", where key is an ASCII string of length 1-79.</span>
<a name="line-382"></a><span class='hs-comment'>-- The values are Unicode strings.</span>
<a name="line-383"></a><span class='hs-comment'>--</span>
<a name="line-384"></a><span class='hs-comment'>-- * If an error occurs, the function will throw an exception that can</span>
<a name="line-385"></a><span class='hs-comment'>-- be caught using e.g. 'System.Glib.GError.catchGErrorJust' and one of the</span>
<a name="line-386"></a><span class='hs-comment'>-- error codes in 'PixbufError'.</span>
<a name="line-387"></a><span class='hs-comment'>--</span>
<a name="line-388"></a><span class='hs-definition'>pixbufSave</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FilePath</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>ImageFormat</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyglyph'>[</span><span class='hs-layout'>(</span><span class='hs-conid'>String</span><span class='hs-layout'>,</span> <span class='hs-conid'>String</span><span class='hs-layout'>)</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span>
<a name="line-389"></a> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-390"></a><span class='hs-definition'>pixbufSave</span> <span class='hs-varid'>pb</span> <span class='hs-varid'>fname</span> <span class='hs-varid'>iType</span> <span class='hs-varid'>options</span> <span class='hs-keyglyph'>=</span>
<a name="line-391"></a> <span class='hs-keyword'>let</span> <span class='hs-layout'>(</span><span class='hs-varid'>keys</span><span class='hs-layout'>,</span> <span class='hs-varid'>values</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>unzip</span> <span class='hs-varid'>options</span> <span class='hs-keyword'>in</span>
<a name="line-392"></a> <span class='hs-keyword'>let</span> <span class='hs-varid'>optLen</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>length</span> <span class='hs-varid'>keys</span> <span class='hs-keyword'>in</span>
<a name="line-393"></a> <span class='hs-varid'>propagateGError</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>errPtrPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-394"></a> <span class='hs-varid'>withUTFString</span> <span class='hs-varid'>fname</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>fnPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-395"></a> <span class='hs-varid'>withUTFString</span> <span class='hs-varid'>iType</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>tyPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-396"></a> <span class='hs-varid'>withUTFStringArray0</span> <span class='hs-varid'>keys</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>keysPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-397"></a> <span class='hs-varid'>withUTFStringArray</span> <span class='hs-varid'>values</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>valuesPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-398"></a>
<a name="line-399"></a>
<a name="line-400"></a>
<a name="line-401"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_savev</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span><span class='hs-layout'>)</span>
<a name="line-402"></a><span class='hs-comment'>{-# LINE 384 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-403"></a>
<a name="line-404"></a> <span class='hs-varid'>pb</span> <span class='hs-varid'>fnPtr</span> <span class='hs-varid'>tyPtr</span> <span class='hs-varid'>keysPtr</span> <span class='hs-varid'>valuesPtr</span> <span class='hs-varid'>errPtrPtr</span>
<a name="line-405"></a> <span class='hs-varid'>return</span> <span class='hs-conid'>()</span>
<a name="line-406"></a>
<a name="line-407"></a><a name="pixbufNew"></a><span class='hs-comment'>-- | Create a new image in memory.</span>
<a name="line-408"></a><span class='hs-comment'>--</span>
<a name="line-409"></a><span class='hs-comment'>-- * Creates a new pixbuf structure and allocates a buffer for</span>
<a name="line-410"></a><span class='hs-comment'>-- it. Note that the buffer is not cleared initially.</span>
<a name="line-411"></a><span class='hs-comment'>--</span>
<a name="line-412"></a><span class='hs-comment'>-- * The boolean flag is true if the pixbuf should have an alpha</span>
<a name="line-413"></a><span class='hs-comment'>-- (transparency) channel. The next integer denotes the bits per</span>
<a name="line-414"></a><span class='hs-comment'>-- color sample, e.g. 8 bits per color for 2^24 colors. The last</span>
<a name="line-415"></a><span class='hs-comment'>-- two integers denote the width and height, respectively.</span>
<a name="line-416"></a><span class='hs-comment'>--</span>
<a name="line-417"></a><span class='hs-definition'>pixbufNew</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Colorspace</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-418"></a><span class='hs-definition'>pixbufNew</span> <span class='hs-varid'>colorspace</span> <span class='hs-varid'>hasAlpha</span> <span class='hs-varid'>bitsPerSample</span> <span class='hs-varid'>width</span> <span class='hs-varid'>height</span> <span class='hs-keyglyph'>=</span>
<a name="line-419"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-420"></a> <span class='hs-varid'>gdk_pixbuf_new</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromEnum</span><span class='hs-layout'>)</span> <span class='hs-varid'>colorspace</span><span class='hs-layout'>)</span>
<a name="line-421"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-varid'>hasAlpha</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>bitsPerSample</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span>
<a name="line-422"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>height</span><span class='hs-layout'>)</span>
<a name="line-423"></a>
<a name="line-424"></a><a name="pixbufNewFromXPMData"></a><span class='hs-comment'>-- | Create a new image from a String.</span>
<a name="line-425"></a><span class='hs-comment'>--</span>
<a name="line-426"></a><span class='hs-comment'>-- * Creates a new pixbuf from a string description.</span>
<a name="line-427"></a><span class='hs-comment'>--</span>
<a name="line-428"></a><span class='hs-definition'>pixbufNewFromXPMData</span> <span class='hs-keyglyph'>::</span> <span class='hs-keyglyph'>[</span><span class='hs-conid'>String</span><span class='hs-keyglyph'>]</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-429"></a><span class='hs-definition'>pixbufNewFromXPMData</span> <span class='hs-varid'>s</span> <span class='hs-keyglyph'>=</span>
<a name="line-430"></a> <span class='hs-varid'>withUTFStringArray0</span> <span class='hs-varid'>s</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>strsPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-431"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span> <span class='hs-varid'>gdk_pixbuf_new_from_xpm_data</span> <span class='hs-varid'>strsPtr</span>
<a name="line-432"></a>
<a name="line-433"></a><a name="InlineImage"></a><span class='hs-comment'>-- | A dymmy type for inline picture data.</span>
<a name="line-434"></a><a name="InlineImage"></a><span class='hs-comment'>--</span>
<a name="line-435"></a><a name="InlineImage"></a><span class='hs-comment'>-- * This dummy type is used to declare pointers to image data</span>
<a name="line-436"></a><a name="InlineImage"></a><span class='hs-comment'>-- that is embedded in the executable. See</span>
<a name="line-437"></a><a name="InlineImage"></a><span class='hs-comment'>-- 'pixbufNewFromInline' for an example.</span>
<a name="line-438"></a><a name="InlineImage"></a><span class='hs-comment'>--</span>
<a name="line-439"></a><a name="InlineImage"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>InlineImage</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>InlineImage</span>
<a name="line-440"></a>
<a name="line-441"></a><a name="pixbufNewFromInline"></a><span class='hs-comment'>-- | Create a new image from a static pointer.</span>
<a name="line-442"></a><span class='hs-comment'>--</span>
<a name="line-443"></a><span class='hs-comment'>-- * Like 'pixbufNewFromXPMData', this function allows to</span>
<a name="line-444"></a><span class='hs-comment'>-- include images in the final binary program. The method used by this</span>
<a name="line-445"></a><span class='hs-comment'>-- function uses a binary representation and therefore needs less space</span>
<a name="line-446"></a><span class='hs-comment'>-- in the final executable. Save the image you want to include as</span>
<a name="line-447"></a><span class='hs-comment'>-- @png@ and run:</span>
<a name="line-448"></a><span class='hs-comment'>--</span>
<a name="line-449"></a><span class='hs-comment'>-- > @echo #include "my_image.h" > my_image.c</span>
<a name="line-450"></a><span class='hs-comment'>-- > gdk-pixbuf-csource --raw --extern --name=my_image myimage.png >> my_image.c</span>
<a name="line-451"></a><span class='hs-comment'>--</span>
<a name="line-452"></a><span class='hs-comment'>-- on it. Write a header file @my_image.h@ containing:</span>
<a name="line-453"></a><span class='hs-comment'>--</span>
<a name="line-454"></a><span class='hs-comment'>-- > #include <gdk/gdk.h></span>
<a name="line-455"></a><span class='hs-comment'>-- > extern guint8 my_image[];</span>
<a name="line-456"></a><span class='hs-comment'>--</span>
<a name="line-457"></a><span class='hs-comment'>-- and save it in the current directory.</span>
<a name="line-458"></a><span class='hs-comment'>-- The created file can be compiled with:</span>
<a name="line-459"></a><span class='hs-comment'>--</span>
<a name="line-460"></a><span class='hs-comment'>-- > cc -c my_image.c `pkg-config --cflags gdk-2.0`</span>
<a name="line-461"></a><span class='hs-comment'>--</span>
<a name="line-462"></a><span class='hs-comment'>-- into an object file which must be linked into your Haskell program by</span>
<a name="line-463"></a><span class='hs-comment'>-- specifying @my_image.o@ and @\"-#include my_image.h\"@ on</span>
<a name="line-464"></a><span class='hs-comment'>-- the command line of GHC.</span>
<a name="line-465"></a><span class='hs-comment'>-- Within you application you delcare a pointer to this image:</span>
<a name="line-466"></a><span class='hs-comment'>--</span>
<a name="line-467"></a><span class='hs-comment'>-- > foreign label "my_image" myImage :: Ptr InlineImage</span>
<a name="line-468"></a><span class='hs-comment'>--</span>
<a name="line-469"></a><span class='hs-comment'>-- Calling 'pixbufNewFromInline' with this pointer will</span>
<a name="line-470"></a><span class='hs-comment'>-- return the image in the object file. Creating the C file with</span>
<a name="line-471"></a><span class='hs-comment'>-- the @--raw@ flag will result in a non-compressed image in the</span>
<a name="line-472"></a><span class='hs-comment'>-- object file. The advantage is that the picture will not be</span>
<a name="line-473"></a><span class='hs-comment'>-- copied when this function is called.</span>
<a name="line-474"></a><span class='hs-comment'>--</span>
<a name="line-475"></a><span class='hs-comment'>--</span>
<a name="line-476"></a><span class='hs-definition'>pixbufNewFromInline</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Ptr</span> <span class='hs-conid'>InlineImage</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-477"></a><span class='hs-definition'>pixbufNewFromInline</span> <span class='hs-varid'>iPtr</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>errPtrPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-478"></a> <span class='hs-varid'>pbPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>gdk_pixbuf_new_from_inline</span> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>iPtr</span><span class='hs-layout'>)</span>
<a name="line-479"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>errPtrPtr</span><span class='hs-layout'>)</span>
<a name="line-480"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>pbPtr</span><span class='hs-varop'>/=</span><span class='hs-varid'>nullPtr</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-layout'>(</span><span class='hs-varid'>return</span> <span class='hs-varid'>pbPtr</span><span class='hs-layout'>)</span>
<a name="line-481"></a> <span class='hs-keyword'>else</span> <span class='hs-keyword'>do</span>
<a name="line-482"></a> <span class='hs-varid'>errPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>errPtrPtr</span>
<a name="line-483"></a> <span class='hs-layout'>(</span><span class='hs-conid'>GError</span> <span class='hs-varid'>dom</span> <span class='hs-varid'>code</span> <span class='hs-varid'>msg</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>peek</span> <span class='hs-varid'>errPtr</span>
<a name="line-484"></a> <span class='hs-varid'>error</span> <span class='hs-varid'>msg</span>
<a name="line-485"></a>
<a name="line-486"></a><a name="pixbufNewSubpixbuf"></a><span class='hs-comment'>-- | Create a restricted view of an image.</span>
<a name="line-487"></a><span class='hs-comment'>--</span>
<a name="line-488"></a><span class='hs-comment'>-- * This function returns a 'Pixbuf' object which shares</span>
<a name="line-489"></a><span class='hs-comment'>-- the image of the original one but only shows a part of it.</span>
<a name="line-490"></a><span class='hs-comment'>-- Modifying either buffer will affect the other.</span>
<a name="line-491"></a><span class='hs-comment'>--</span>
<a name="line-492"></a><span class='hs-comment'>-- * This function throw an exception if the requested bounds are invalid.</span>
<a name="line-493"></a><span class='hs-comment'>--</span>
<a name="line-494"></a><span class='hs-definition'>pixbufNewSubpixbuf</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-495"></a><span class='hs-definition'>pixbufNewSubpixbuf</span> <span class='hs-varid'>pb</span> <span class='hs-varid'>srcX</span> <span class='hs-varid'>srcY</span> <span class='hs-varid'>height</span> <span class='hs-varid'>width</span> <span class='hs-keyglyph'>=</span>
<a name="line-496"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span> <span class='hs-keyword'>do</span>
<a name="line-497"></a> <span class='hs-varid'>pbPtr</span> <span class='hs-keyglyph'><-</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_new_subpixbuf</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-498"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcY</span><span class='hs-layout'>)</span>
<a name="line-499"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>height</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span>
<a name="line-500"></a> <span class='hs-keyword'>if</span> <span class='hs-varid'>pbPtr</span><span class='hs-varop'>==</span><span class='hs-varid'>nullPtr</span> <span class='hs-keyword'>then</span> <span class='hs-varid'>error</span> <span class='hs-str'>"pixbufNewSubpixbuf: invalid bounds"</span>
<a name="line-501"></a> <span class='hs-keyword'>else</span> <span class='hs-varid'>return</span> <span class='hs-varid'>pbPtr</span>
<a name="line-502"></a>
<a name="line-503"></a><a name="pixbufCopy"></a><span class='hs-comment'>-- | Create a deep copy of an image.</span>
<a name="line-504"></a><span class='hs-comment'>--</span>
<a name="line-505"></a><span class='hs-definition'>pixbufCopy</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-506"></a><span class='hs-definition'>pixbufCopy</span> <span class='hs-varid'>pb</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_copy</span> <span class='hs-varid'>argPtr1</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-507"></a>
<a name="line-508"></a>
<a name="line-509"></a><a name="InterpType"></a><span class='hs-comment'>-- | How an image is scaled.</span>
<a name="line-510"></a><a name="InterpType"></a><span class='hs-comment'>--</span>
<a name="line-511"></a><a name="InterpType"></a><span class='hs-comment'>-- [@InterpNearest@] Nearest neighbor sampling; this is the</span>
<a name="line-512"></a><a name="InterpType"></a><span class='hs-comment'>-- fastest and lowest quality mode. Quality is normally unacceptable when</span>
<a name="line-513"></a><a name="InterpType"></a><span class='hs-comment'>-- scaling down, but may be OK when scaling up.</span>
<a name="line-514"></a><a name="InterpType"></a><span class='hs-comment'>--</span>
<a name="line-515"></a><a name="InterpType"></a><span class='hs-comment'>-- [@InterpTiles@] This is an accurate simulation of the</span>
<a name="line-516"></a><a name="InterpType"></a><span class='hs-comment'>-- PostScript image operator without any interpolation enabled. Each</span>
<a name="line-517"></a><a name="InterpType"></a><span class='hs-comment'>-- pixel is rendered as a tiny parallelogram of solid color, the edges of</span>
<a name="line-518"></a><a name="InterpType"></a><span class='hs-comment'>-- which are implemented with antialiasing. It resembles nearest neighbor</span>
<a name="line-519"></a><a name="InterpType"></a><span class='hs-comment'>-- for enlargement, and bilinear for reduction.</span>
<a name="line-520"></a><a name="InterpType"></a><span class='hs-comment'>--</span>
<a name="line-521"></a><a name="InterpType"></a><span class='hs-comment'>-- [@InterpBilinear@] Best quality\/speed balance; use this</span>
<a name="line-522"></a><a name="InterpType"></a><span class='hs-comment'>-- mode by default. Bilinear interpolation. For enlargement, it is</span>
<a name="line-523"></a><a name="InterpType"></a><span class='hs-comment'>-- equivalent to point-sampling the ideal bilinear-interpolated</span>
<a name="line-524"></a><a name="InterpType"></a><span class='hs-comment'>-- image. For reduction, it is equivalent to laying down small tiles and</span>
<a name="line-525"></a><a name="InterpType"></a><span class='hs-comment'>-- integrating over the coverage area.</span>
<a name="line-526"></a><a name="InterpType"></a><span class='hs-comment'>--</span>
<a name="line-527"></a><a name="InterpType"></a><span class='hs-comment'>-- [@InterpHyper@] This is the slowest and highest quality</span>
<a name="line-528"></a><a name="InterpType"></a><span class='hs-comment'>-- reconstruction function. It is derived from the hyperbolic filters in</span>
<a name="line-529"></a><a name="InterpType"></a><span class='hs-comment'>-- Wolberg's \"Digital Image Warping\", and is formally defined as the</span>
<a name="line-530"></a><a name="InterpType"></a><span class='hs-comment'>-- hyperbolic-filter sampling the ideal hyperbolic-filter interpolated</span>
<a name="line-531"></a><a name="InterpType"></a><span class='hs-comment'>-- image (the filter is designed to be idempotent for 1:1 pixel mapping).</span>
<a name="line-532"></a><a name="InterpType"></a><span class='hs-comment'>--</span>
<a name="line-533"></a><a name="InterpType"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>InterpType</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>InterpNearest</span>
<a name="line-534"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>InterpTiles</span>
<a name="line-535"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>InterpBilinear</span>
<a name="line-536"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>InterpHyper</span>
<a name="line-537"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Enum</span><span class='hs-layout'>)</span>
<a name="line-538"></a>
<a name="line-539"></a><span class='hs-comment'>{-# LINE 515 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-540"></a>
<a name="line-541"></a><a name="pixbufScaleSimple"></a><span class='hs-comment'>-- | Scale an image.</span>
<a name="line-542"></a><span class='hs-comment'>--</span>
<a name="line-543"></a><span class='hs-comment'>-- * Creates a new 'Pixbuf' containing a copy of</span>
<a name="line-544"></a><span class='hs-comment'>-- @src@ scaled to the given measures. Leaves @src@</span>
<a name="line-545"></a><span class='hs-comment'>-- unaffected.</span>
<a name="line-546"></a><span class='hs-comment'>--</span>
<a name="line-547"></a><span class='hs-comment'>-- * @interp@ affects the quality and speed of the scaling function.</span>
<a name="line-548"></a><span class='hs-comment'>-- 'InterpNearest' is the fastest option but yields very poor quality</span>
<a name="line-549"></a><span class='hs-comment'>-- when scaling down. 'InterpBilinear' is a good trade-off between</span>
<a name="line-550"></a><span class='hs-comment'>-- speed and quality and should thus be used as a default.</span>
<a name="line-551"></a><span class='hs-comment'>--</span>
<a name="line-552"></a><span class='hs-definition'>pixbufScaleSimple</span> <span class='hs-keyglyph'>::</span>
<a name="line-553"></a> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ @src@ - the source image</span>
<a name="line-554"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @width@ - the target width</span>
<a name="line-555"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @height@ the target height</span>
<a name="line-556"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InterpType</span> <span class='hs-comment'>-- ^ interpolation type</span>
<a name="line-557"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-558"></a><span class='hs-definition'>pixbufScaleSimple</span> <span class='hs-varid'>pb</span> <span class='hs-varid'>width</span> <span class='hs-varid'>height</span> <span class='hs-varid'>interp</span> <span class='hs-keyglyph'>=</span>
<a name="line-559"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span> <span class='hs-varid'>liftM</span> <span class='hs-varid'>castPtr</span> <span class='hs-varop'>$</span>
<a name="line-560"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_scale_simple</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toPixbuf</span> <span class='hs-varid'>pb</span><span class='hs-layout'>)</span>
<a name="line-561"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>height</span><span class='hs-layout'>)</span>
<a name="line-562"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>$</span> <span class='hs-varid'>fromEnum</span> <span class='hs-varid'>interp</span><span class='hs-layout'>)</span>
<a name="line-563"></a>
<a name="line-564"></a><a name="pixbufScale"></a><span class='hs-comment'>-- | Copy a scaled image part to another image.</span>
<a name="line-565"></a><span class='hs-comment'>--</span>
<a name="line-566"></a><span class='hs-comment'>-- * This function is the generic version of 'pixbufScaleSimple'. It scales</span>
<a name="line-567"></a><span class='hs-comment'>-- @src@ by @scaleX@ and @scaleY@ and translate the image by @offsetX@ and</span>
<a name="line-568"></a><span class='hs-comment'>-- @offsetY@. Whatever is in the intersection with the rectangle @destX@,</span>
<a name="line-569"></a><span class='hs-comment'>-- @destY@, @destWidth@, @destHeight@ will be rendered into @dest@.</span>
<a name="line-570"></a><span class='hs-comment'>--</span>
<a name="line-571"></a><span class='hs-comment'>-- * The rectangle in the destination is simply overwritten. Use</span>
<a name="line-572"></a><span class='hs-comment'>-- 'pixbufComposite' if you need to blend the source image onto the</span>
<a name="line-573"></a><span class='hs-comment'>-- destination.</span>
<a name="line-574"></a><span class='hs-comment'>--</span>
<a name="line-575"></a><span class='hs-definition'>pixbufScale</span> <span class='hs-keyglyph'>::</span>
<a name="line-576"></a> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ @src@ - the source pixbuf</span>
<a name="line-577"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ @dest@ - the pixbuf into which to render the results</span>
<a name="line-578"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destX@ - the left coordinate for region to render</span>
<a name="line-579"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destY@ - the top coordinate for region to render</span>
<a name="line-580"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destWidth@ - the width of the region to render</span>
<a name="line-581"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destHeight@ - the height of the region to render</span>
<a name="line-582"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @offsetX@ - the offset in the X direction (currently</span>
<a name="line-583"></a> <span class='hs-comment'>-- rounded to an integer)</span>
<a name="line-584"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @offsetY@ - the offset in the Y direction</span>
<a name="line-585"></a> <span class='hs-comment'>-- (currently rounded to an integer)</span>
<a name="line-586"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @scaleX@ - the scale factor in the X direction</span>
<a name="line-587"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @scaleY@ - the scale factor in the Y direction</span>
<a name="line-588"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InterpType</span> <span class='hs-comment'>-- ^ the interpolation type for the transformation.</span>
<a name="line-589"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-590"></a><span class='hs-definition'>pixbufScale</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dest</span> <span class='hs-varid'>destX</span> <span class='hs-varid'>destY</span> <span class='hs-varid'>destWidth</span> <span class='hs-varid'>destHeight</span> <span class='hs-varid'>offsetX</span> <span class='hs-varid'>offsetY</span>
<a name="line-591"></a> <span class='hs-varid'>scaleX</span> <span class='hs-varid'>scaleY</span> <span class='hs-varid'>interp</span> <span class='hs-keyglyph'>=</span>
<a name="line-592"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span> <span class='hs-varid'>arg10</span> <span class='hs-varid'>arg11</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_scale</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span> <span class='hs-varid'>arg10</span> <span class='hs-varid'>arg11</span><span class='hs-layout'>)</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dest</span>
<a name="line-593"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destY</span><span class='hs-layout'>)</span>
<a name="line-594"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destWidth</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destHeight</span><span class='hs-layout'>)</span>
<a name="line-595"></a> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>offsetX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>offsetY</span><span class='hs-layout'>)</span>
<a name="line-596"></a> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>scaleX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>scaleY</span><span class='hs-layout'>)</span>
<a name="line-597"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromEnum</span><span class='hs-layout'>)</span> <span class='hs-varid'>interp</span><span class='hs-layout'>)</span>
<a name="line-598"></a>
<a name="line-599"></a><a name="pixbufComposite"></a><span class='hs-comment'>-- | Blend a scaled image part onto another image.</span>
<a name="line-600"></a><span class='hs-comment'>--</span>
<a name="line-601"></a><span class='hs-comment'>-- * This function is similar to 'pixbufScale' but allows the</span>
<a name="line-602"></a><span class='hs-comment'>-- original image to \"shine through\". The @alpha@ value determines</span>
<a name="line-603"></a><span class='hs-comment'>-- how opaque the source image is. Passing @0@ is</span>
<a name="line-604"></a><span class='hs-comment'>-- equivalent to not calling this function at all, passing</span>
<a name="line-605"></a><span class='hs-comment'>-- @255@ has the</span>
<a name="line-606"></a><span class='hs-comment'>-- same effect as calling 'pixbufScale'.</span>
<a name="line-607"></a><span class='hs-comment'>--</span>
<a name="line-608"></a><span class='hs-definition'>pixbufComposite</span> <span class='hs-keyglyph'>::</span>
<a name="line-609"></a> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ @src@ - the source pixbuf</span>
<a name="line-610"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ @dest@ - the pixbuf into which to render the results</span>
<a name="line-611"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destX@ - the left coordinate for region to render</span>
<a name="line-612"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destY@ - the top coordinate for region to render</span>
<a name="line-613"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destWidth@ - the width of the region to render</span>
<a name="line-614"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ @destHeight@ - the height of the region to render</span>
<a name="line-615"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @offsetX@ - the offset in the X direction (currently</span>
<a name="line-616"></a> <span class='hs-comment'>-- rounded to an integer)</span>
<a name="line-617"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @offsetY@ - the offset in the Y direction</span>
<a name="line-618"></a> <span class='hs-comment'>-- (currently rounded to an integer)</span>
<a name="line-619"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @scaleX@ - the scale factor in the X direction</span>
<a name="line-620"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Double</span> <span class='hs-comment'>-- ^ @scaleY@ - the scale factor in the Y direction</span>
<a name="line-621"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>InterpType</span> <span class='hs-comment'>-- ^ the interpolation type for the transformation.</span>
<a name="line-622"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span> <span class='hs-comment'>-- ^ @alpha@ - the transparency</span>
<a name="line-623"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-624"></a><span class='hs-definition'>pixbufComposite</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dest</span> <span class='hs-varid'>destX</span> <span class='hs-varid'>destY</span> <span class='hs-varid'>destWidth</span> <span class='hs-varid'>destHeight</span>
<a name="line-625"></a> <span class='hs-varid'>offsetX</span> <span class='hs-varid'>offsetY</span> <span class='hs-varid'>scaleX</span> <span class='hs-varid'>scaleY</span> <span class='hs-varid'>interp</span> <span class='hs-varid'>alpha</span> <span class='hs-keyglyph'>=</span>
<a name="line-626"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span> <span class='hs-varid'>arg10</span> <span class='hs-varid'>arg11</span> <span class='hs-varid'>arg12</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_composite</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span> <span class='hs-varid'>arg10</span> <span class='hs-varid'>arg11</span> <span class='hs-varid'>arg12</span><span class='hs-layout'>)</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dest</span>
<a name="line-627"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destY</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destWidth</span><span class='hs-layout'>)</span>
<a name="line-628"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destHeight</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>offsetX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>offsetY</span><span class='hs-layout'>)</span>
<a name="line-629"></a> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>scaleX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>realToFrac</span> <span class='hs-varid'>scaleY</span><span class='hs-layout'>)</span>
<a name="line-630"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromEnum</span><span class='hs-layout'>)</span> <span class='hs-varid'>interp</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>alpha</span><span class='hs-layout'>)</span>
<a name="line-631"></a>
<a name="line-632"></a>
<a name="line-633"></a><a name="pixbufFlipHorizontally"></a><span class='hs-comment'>-- | Flips a pixbuf horizontally and returns the result in a new pixbuf.</span>
<a name="line-634"></a><span class='hs-comment'>--</span>
<a name="line-635"></a><span class='hs-definition'>pixbufFlipHorizontally</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-636"></a><span class='hs-definition'>pixbufFlipHorizontally</span> <span class='hs-varid'>self</span> <span class='hs-keyglyph'>=</span>
<a name="line-637"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-638"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_flip</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span>
<a name="line-639"></a><span class='hs-comment'>{-# LINE 614 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-640"></a> <span class='hs-varid'>self</span>
<a name="line-641"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-642"></a><a name="pixbufFlipHorazontally"></a><span class='hs-definition'>pixbufFlipHorazontally</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>pixbufFlipHorizontally</span>
<a name="line-643"></a>
<a name="line-644"></a><a name="pixbufFlipVertically"></a><span class='hs-comment'>-- | Flips a pixbuf vertically and returns the result in a new pixbuf.</span>
<a name="line-645"></a><span class='hs-comment'>--</span>
<a name="line-646"></a><span class='hs-definition'>pixbufFlipVertically</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-647"></a><span class='hs-definition'>pixbufFlipVertically</span> <span class='hs-varid'>self</span> <span class='hs-keyglyph'>=</span>
<a name="line-648"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-649"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_flip</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span>
<a name="line-650"></a><span class='hs-comment'>{-# LINE 624 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-651"></a> <span class='hs-varid'>self</span>
<a name="line-652"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span>
<a name="line-653"></a>
<a name="line-654"></a><a name="pixbufRotateSimple"></a><span class='hs-comment'>-- | Rotates a pixbuf by a multiple of 90 degrees, and returns the result in a</span>
<a name="line-655"></a><span class='hs-comment'>-- new pixbuf.</span>
<a name="line-656"></a><span class='hs-comment'>--</span>
<a name="line-657"></a><span class='hs-definition'>pixbufRotateSimple</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>PixbufRotation</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-658"></a><span class='hs-definition'>pixbufRotateSimple</span> <span class='hs-varid'>self</span> <span class='hs-varid'>angle</span> <span class='hs-keyglyph'>=</span>
<a name="line-659"></a> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-660"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_rotate_simple</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span>
<a name="line-661"></a><span class='hs-comment'>{-# LINE 634 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-662"></a> <span class='hs-varid'>self</span>
<a name="line-663"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varop'>.</span> <span class='hs-varid'>fromEnum</span><span class='hs-layout'>)</span> <span class='hs-varid'>angle</span><span class='hs-layout'>)</span>
<a name="line-664"></a>
<a name="line-665"></a><a name="PixbufRotation"></a><span class='hs-comment'>-- | The possible rotations which can be passed to 'pixbufRotateSimple'.</span>
<a name="line-666"></a><a name="PixbufRotation"></a><span class='hs-comment'>--</span>
<a name="line-667"></a><a name="PixbufRotation"></a><span class='hs-comment'>-- To make them easier to use, their numerical values are the actual degrees.</span>
<a name="line-668"></a><a name="PixbufRotation"></a><span class='hs-comment'>--</span>
<a name="line-669"></a><a name="PixbufRotation"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>PixbufRotation</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateNone</span>
<a name="line-670"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufRotateCounterclockwise</span>
<a name="line-671"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufRotateUpsidedown</span>
<a name="line-672"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>PixbufRotateClockwise</span>
<a name="line-673"></a>
<a name="line-674"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Enum</span> <span class='hs-conid'>PixbufRotation</span> <span class='hs-keyword'>where</span>
<a name="line-675"></a> <span class='hs-varid'>fromEnum</span> <span class='hs-conid'>PixbufRotateNone</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>0</span>
<a name="line-676"></a> <span class='hs-varid'>fromEnum</span> <span class='hs-conid'>PixbufRotateCounterclockwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>90</span>
<a name="line-677"></a> <span class='hs-varid'>fromEnum</span> <span class='hs-conid'>PixbufRotateUpsidedown</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>180</span>
<a name="line-678"></a> <span class='hs-varid'>fromEnum</span> <span class='hs-conid'>PixbufRotateClockwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>270</span>
<a name="line-679"></a>
<a name="line-680"></a> <span class='hs-varid'>toEnum</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateNone</span>
<a name="line-681"></a> <span class='hs-varid'>toEnum</span> <span class='hs-num'>90</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateCounterclockwise</span>
<a name="line-682"></a> <span class='hs-varid'>toEnum</span> <span class='hs-num'>180</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateUpsidedown</span>
<a name="line-683"></a> <span class='hs-varid'>toEnum</span> <span class='hs-num'>270</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateClockwise</span>
<a name="line-684"></a> <span class='hs-varid'>toEnum</span> <span class='hs-varid'>unmatched</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-layout'>(</span><span class='hs-str'>"PixbufRotation.toEnum: Cannot match "</span> <span class='hs-varop'>++</span> <span class='hs-varid'>show</span> <span class='hs-varid'>unmatched</span><span class='hs-layout'>)</span>
<a name="line-685"></a>
<a name="line-686"></a> <span class='hs-varid'>succ</span> <span class='hs-conid'>PixbufRotateNone</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateCounterclockwise</span>
<a name="line-687"></a> <span class='hs-varid'>succ</span> <span class='hs-conid'>PixbufRotateCounterclockwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateUpsidedown</span>
<a name="line-688"></a> <span class='hs-varid'>succ</span> <span class='hs-conid'>PixbufRotateUpsidedown</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateClockwise</span>
<a name="line-689"></a> <span class='hs-varid'>succ</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span>
<a name="line-690"></a>
<a name="line-691"></a> <span class='hs-varid'>pred</span> <span class='hs-conid'>PixbufRotateCounterclockwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateNone</span>
<a name="line-692"></a> <span class='hs-varid'>pred</span> <span class='hs-conid'>PixbufRotateUpsidedown</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateCounterclockwise</span>
<a name="line-693"></a> <span class='hs-varid'>pred</span> <span class='hs-conid'>PixbufRotateClockwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>PixbufRotateUpsidedown</span>
<a name="line-694"></a> <span class='hs-varid'>pred</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>undefined</span>
<a name="line-695"></a>
<a name="line-696"></a> <span class='hs-varid'>enumFromTo</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>fromEnum</span> <span class='hs-varid'>x</span> <span class='hs-varop'>==</span> <span class='hs-varid'>fromEnum</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyglyph'>[</span> <span class='hs-varid'>y</span> <span class='hs-keyglyph'>]</span>
<a name="line-697"></a> <span class='hs-keyglyph'>|</span> <span class='hs-varid'>otherwise</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span> <span class='hs-conop'>:</span> <span class='hs-varid'>enumFromTo</span> <span class='hs-layout'>(</span><span class='hs-varid'>succ</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-varid'>y</span>
<a name="line-698"></a> <span class='hs-varid'>enumFrom</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>enumFromTo</span> <span class='hs-varid'>x</span> <span class='hs-conid'>PixbufRotateClockwise</span>
<a name="line-699"></a> <span class='hs-varid'>enumFromThen</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Enum PixbufRotation: enumFromThen not implemented"</span>
<a name="line-700"></a> <span class='hs-varid'>enumFromThenTo</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>error</span> <span class='hs-str'>"Enum PixbufRotation: enumFromThenTo not implemented"</span>
<a name="line-701"></a>
<a name="line-702"></a><span class='hs-comment'>{-# LINE 642 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-703"></a>
<a name="line-704"></a>
<a name="line-705"></a><a name="pixbufAddAlpha"></a><span class='hs-comment'>-- | Add an opacity layer to the 'Pixbuf'.</span>
<a name="line-706"></a><span class='hs-comment'>--</span>
<a name="line-707"></a><span class='hs-comment'>-- * This function returns a copy of the given @src@</span>
<a name="line-708"></a><span class='hs-comment'>-- 'Pixbuf', leaving @src@ unmodified.</span>
<a name="line-709"></a><span class='hs-comment'>-- The new 'Pixbuf' has an alpha (opacity)</span>
<a name="line-710"></a><span class='hs-comment'>-- channel which defaults to @255@ (fully opaque pixels)</span>
<a name="line-711"></a><span class='hs-comment'>-- unless @src@ already had an alpha channel in which case</span>
<a name="line-712"></a><span class='hs-comment'>-- the original values are kept.</span>
<a name="line-713"></a><span class='hs-comment'>-- Passing in a color triple @(r,g,b)@ makes all</span>
<a name="line-714"></a><span class='hs-comment'>-- pixels that have this color fully transparent</span>
<a name="line-715"></a><span class='hs-comment'>-- (opacity of @0@). The pixel color itself remains unchanged</span>
<a name="line-716"></a><span class='hs-comment'>-- during this substitution.</span>
<a name="line-717"></a><span class='hs-comment'>--</span>
<a name="line-718"></a><span class='hs-definition'>pixbufAddAlpha</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Maybe</span> <span class='hs-layout'>(</span><span class='hs-conid'>Word8</span><span class='hs-layout'>,</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>,</span> <span class='hs-conid'>Word8</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>Pixbuf</span>
<a name="line-719"></a><span class='hs-definition'>pixbufAddAlpha</span> <span class='hs-varid'>pb</span> <span class='hs-conid'>Nothing</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-720"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_add_alpha</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-conid'>False</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span>
<a name="line-721"></a><span class='hs-definition'>pixbufAddAlpha</span> <span class='hs-varid'>pb</span> <span class='hs-layout'>(</span><span class='hs-conid'>Just</span> <span class='hs-layout'>(</span><span class='hs-varid'>r</span><span class='hs-layout'>,</span><span class='hs-varid'>g</span><span class='hs-layout'>,</span><span class='hs-varid'>b</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span> <span class='hs-varop'>$</span>
<a name="line-722"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_add_alpha</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromBool</span> <span class='hs-conid'>True</span><span class='hs-layout'>)</span>
<a name="line-723"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>r</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>g</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>b</span><span class='hs-layout'>)</span>
<a name="line-724"></a>
<a name="line-725"></a><a name="pixbufCopyArea"></a><span class='hs-comment'>-- | Copy a rectangular portion into another 'Pixbuf'.</span>
<a name="line-726"></a><span class='hs-comment'>--</span>
<a name="line-727"></a><span class='hs-comment'>-- The source 'Pixbuf' remains unchanged. Converion between</span>
<a name="line-728"></a><span class='hs-comment'>-- different formats is done automatically.</span>
<a name="line-729"></a><span class='hs-comment'>--</span>
<a name="line-730"></a><span class='hs-definition'>pixbufCopyArea</span> <span class='hs-keyglyph'>::</span>
<a name="line-731"></a> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ Source pixbuf</span>
<a name="line-732"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Source X coordinate within the source pixbuf</span>
<a name="line-733"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Source Y coordinate within the source pixbuf</span>
<a name="line-734"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Width of the area to copy</span>
<a name="line-735"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Height of the area to copy</span>
<a name="line-736"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ Destination pixbuf</span>
<a name="line-737"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ X coordinate within the destination pixbuf</span>
<a name="line-738"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Y coordinate within the destination pixbuf</span>
<a name="line-739"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-740"></a><span class='hs-definition'>pixbufCopyArea</span> <span class='hs-varid'>src</span> <span class='hs-varid'>srcX</span> <span class='hs-varid'>srcY</span> <span class='hs-varid'>srcWidth</span> <span class='hs-varid'>srcHeight</span> <span class='hs-varid'>dest</span> <span class='hs-varid'>destX</span> <span class='hs-varid'>destY</span> <span class='hs-keyglyph'>=</span>
<a name="line-741"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg6</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg6</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr6</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_copy_area</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>argPtr6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span><span class='hs-layout'>)</span> <span class='hs-varid'>src</span>
<a name="line-742"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcY</span><span class='hs-layout'>)</span>
<a name="line-743"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcWidth</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcHeight</span><span class='hs-layout'>)</span>
<a name="line-744"></a> <span class='hs-varid'>dest</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destX</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destY</span><span class='hs-layout'>)</span>
<a name="line-745"></a>
<a name="line-746"></a><a name="pixbufFill"></a><span class='hs-comment'>-- | Fills a 'Pixbuf' with a color.</span>
<a name="line-747"></a><span class='hs-comment'>--</span>
<a name="line-748"></a><span class='hs-comment'>-- * The passed-in color is a quadruple consisting of the red, green, blue</span>
<a name="line-749"></a><span class='hs-comment'>-- and alpha component of the pixel. If the 'Pixbuf' does not</span>
<a name="line-750"></a><span class='hs-comment'>-- have an alpha channel, the alpha value is ignored.</span>
<a name="line-751"></a><span class='hs-comment'>--</span>
<a name="line-752"></a><span class='hs-definition'>pixbufFill</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Pixbuf</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Word8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-753"></a><span class='hs-definition'>pixbufFill</span> <span class='hs-varid'>pb</span> <span class='hs-varid'>red</span> <span class='hs-varid'>green</span> <span class='hs-varid'>blue</span> <span class='hs-varid'>alpha</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_fill</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>pb</span>
<a name="line-754"></a> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>red</span><span class='hs-layout'>)</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>24</span> <span class='hs-varop'>.|.</span>
<a name="line-755"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>green</span><span class='hs-layout'>)</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>16</span> <span class='hs-varop'>.|.</span>
<a name="line-756"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>blue</span><span class='hs-layout'>)</span> <span class='hs-varop'>`shiftL`</span> <span class='hs-num'>8</span> <span class='hs-varop'>.|.</span>
<a name="line-757"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>alpha</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-758"></a>
<a name="line-759"></a><a name="pixbufGetFromDrawable"></a><span class='hs-comment'>-- | Take a screenshot of a 'Drawable'.</span>
<a name="line-760"></a><span class='hs-comment'>--</span>
<a name="line-761"></a><span class='hs-comment'>-- * This function creates a 'Pixbuf' and fills it with the image</span>
<a name="line-762"></a><span class='hs-comment'>-- currently in the 'Drawable' (which might be invalid if the</span>
<a name="line-763"></a><span class='hs-comment'>-- window is obscured or minimized). Note that this transfers data from</span>
<a name="line-764"></a><span class='hs-comment'>-- the server to the client on X Windows.</span>
<a name="line-765"></a><span class='hs-comment'>--</span>
<a name="line-766"></a><span class='hs-comment'>-- * This function will return a 'Pixbuf' with no alpha channel</span>
<a name="line-767"></a><span class='hs-comment'>-- containing the part of the 'Drawable' specified by the</span>
<a name="line-768"></a><span class='hs-comment'>-- rectangle. The function will return @Nothing@ if the window</span>
<a name="line-769"></a><span class='hs-comment'>-- is not currently visible.</span>
<a name="line-770"></a><span class='hs-comment'>--</span>
<a name="line-771"></a><span class='hs-definition'>pixbufGetFromDrawable</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>DrawableClass</span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>d</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Rectangle</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Maybe</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span>
<a name="line-772"></a><span class='hs-definition'>pixbufGetFromDrawable</span> <span class='hs-varid'>d</span> <span class='hs-layout'>(</span><span class='hs-conid'>Rectangle</span> <span class='hs-varid'>x</span> <span class='hs-varid'>y</span> <span class='hs-varid'>width</span> <span class='hs-varid'>height</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span>
<a name="line-773"></a> <span class='hs-varid'>maybeNull</span> <span class='hs-layout'>(</span><span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixbuf</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span>
<a name="line-774"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Drawable</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Colormap</span> <span class='hs-varid'>arg3</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg3</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr3</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_get_from_drawable</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>argPtr3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span><span class='hs-layout'>)</span>
<a name="line-775"></a><span class='hs-comment'>{-# LINE 714 "./Graphics/UI/Gtk/Gdk/Pixbuf.chs" #-}</span>
<a name="line-776"></a> <span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>nullForeignPtr</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>toDrawable</span> <span class='hs-varid'>d</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Colormap</span> <span class='hs-varid'>nullForeignPtr</span><span class='hs-layout'>)</span>
<a name="line-777"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>y</span><span class='hs-layout'>)</span> <span class='hs-num'>0</span> <span class='hs-num'>0</span>
<a name="line-778"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>width</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>height</span><span class='hs-layout'>)</span>
<a name="line-779"></a>
<a name="line-780"></a>
<a name="line-781"></a>
<a name="line-782"></a><a name="pixbufRenderThresholdAlpha"></a><span class='hs-comment'>-- | Takes the opacity values in a rectangular portion of a pixbuf and</span>
<a name="line-783"></a><span class='hs-comment'>-- thresholds them to produce a bi-level alpha mask that can be used</span>
<a name="line-784"></a><span class='hs-comment'>-- as a clipping mask for a drawable.</span>
<a name="line-785"></a><span class='hs-definition'>pixbufRenderThresholdAlpha</span> <span class='hs-keyglyph'>::</span>
<a name="line-786"></a> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ A pixbuf.</span>
<a name="line-787"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bitmap</span> <span class='hs-comment'>-- ^ Bitmap where the bilevel mask will be painted to.</span>
<a name="line-788"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Source X coordinate.</span>
<a name="line-789"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ source Y coordinate.</span>
<a name="line-790"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Destination X coordinate.</span>
<a name="line-791"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Destination Y coordinate.</span>
<a name="line-792"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Width of region to threshold, or -1 to use pixbuf width</span>
<a name="line-793"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Height of region to threshold, or -1 to use pixbuf height</span>
<a name="line-794"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Opacity values below this will be painted as zero; all other values will be painted as one.</span>
<a name="line-795"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-conid'>()</span>
<a name="line-796"></a><span class='hs-definition'>pixbufRenderThresholdAlpha</span> <span class='hs-varid'>src</span> <span class='hs-varid'>dest</span> <span class='hs-varid'>srcX</span> <span class='hs-varid'>srcY</span> <span class='hs-varid'>destX</span> <span class='hs-varid'>destY</span> <span class='hs-varid'>w</span> <span class='hs-varid'>h</span> <span class='hs-varid'>at</span> <span class='hs-keyglyph'>=</span>
<a name="line-797"></a> <span class='hs-varid'>withForeignPtr</span> <span class='hs-layout'>(</span><span class='hs-varid'>unPixmap</span> <span class='hs-varid'>dest</span><span class='hs-layout'>)</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>destPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-798"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_render_threshold_alpha</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>arg2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-varid'>arg6</span> <span class='hs-varid'>arg7</span> <span class='hs-varid'>arg8</span> <span class='hs-varid'>arg9</span><span class='hs-layout'>)</span> <span class='hs-varid'>src</span>
<a name="line-799"></a> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>destPtr</span><span class='hs-layout'>)</span>
<a name="line-800"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcX</span><span class='hs-layout'>)</span>
<a name="line-801"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>srcY</span><span class='hs-layout'>)</span>
<a name="line-802"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destX</span><span class='hs-layout'>)</span>
<a name="line-803"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>destY</span><span class='hs-layout'>)</span>
<a name="line-804"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>w</span><span class='hs-layout'>)</span>
<a name="line-805"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>h</span><span class='hs-layout'>)</span>
<a name="line-806"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>at</span><span class='hs-layout'>)</span>
<a name="line-807"></a>
<a name="line-808"></a>
<a name="line-809"></a>
<a name="line-810"></a>
<a name="line-811"></a>
<a name="line-812"></a><a name="pixbufRenderPixmapAndMaskForColormap"></a><span class='hs-comment'>-- | Creates a pixmap and a mask bitmap which are returned and renders</span>
<a name="line-813"></a><span class='hs-comment'>-- a pixbuf and its corresponding thresholded alpha mask to them. This</span>
<a name="line-814"></a><span class='hs-comment'>-- is merely a convenience function; applications that need to render</span>
<a name="line-815"></a><span class='hs-comment'>-- pixbufs with dither offsets or to given drawables should use</span>
<a name="line-816"></a><span class='hs-comment'>-- 'Graphics.UI.Gtk.Gdk.Drawable.drawPixbuf', and</span>
<a name="line-817"></a><span class='hs-comment'>-- 'pixbufRenderThresholdAlpha'.</span>
<a name="line-818"></a><span class='hs-comment'>--</span>
<a name="line-819"></a><span class='hs-comment'>-- The pixmap that is created uses the 'Colormap' specified by</span>
<a name="line-820"></a><span class='hs-comment'>-- colormap. This colormap must match the colormap of the window where</span>
<a name="line-821"></a><span class='hs-comment'>-- the pixmap will eventually be used or an error will result.</span>
<a name="line-822"></a><span class='hs-comment'>--</span>
<a name="line-823"></a><span class='hs-comment'>-- If the pixbuf does not have an alpha channel, then the returned</span>
<a name="line-824"></a><span class='hs-comment'>-- mask will be @Nothing@.</span>
<a name="line-825"></a><span class='hs-comment'>--</span>
<a name="line-826"></a><span class='hs-definition'>pixbufRenderPixmapAndMaskForColormap</span> <span class='hs-keyglyph'>::</span>
<a name="line-827"></a> <span class='hs-conid'>Pixbuf</span> <span class='hs-comment'>-- ^ A pixbuf.</span>
<a name="line-828"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Colormap</span> <span class='hs-comment'>-- ^ A Colormap</span>
<a name="line-829"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int</span> <span class='hs-comment'>-- ^ Threshold value for opacity values</span>
<a name="line-830"></a> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Pixmap</span><span class='hs-layout'>,</span> <span class='hs-conid'>Maybe</span> <span class='hs-conid'>Bitmap</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- ^ (Created pixmap, created mask)</span>
<a name="line-831"></a><span class='hs-definition'>pixbufRenderPixmapAndMaskForColormap</span> <span class='hs-varid'>pixbuf</span> <span class='hs-varid'>colormap</span> <span class='hs-varid'>threshold</span> <span class='hs-keyglyph'>=</span>
<a name="line-832"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>pmRetPtr</span> <span class='hs-keyglyph'>-></span>
<a name="line-833"></a> <span class='hs-varid'>alloca</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>bmRetPtr</span> <span class='hs-keyglyph'>-></span> <span class='hs-keyword'>do</span>
<a name="line-834"></a> <span class='hs-layout'>(</span><span class='hs-keyglyph'>\</span><span class='hs-layout'>(</span><span class='hs-conid'>Pixbuf</span> <span class='hs-varid'>arg1</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-conid'>Colormap</span> <span class='hs-varid'>arg2</span><span class='hs-layout'>)</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg1</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr1</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>withForeignPtr</span> <span class='hs-varid'>arg2</span> <span class='hs-varop'>$</span> <span class='hs-keyglyph'>\</span><span class='hs-varid'>argPtr2</span> <span class='hs-keyglyph'>-></span><span class='hs-varid'>gdk_pixbuf_render_pixmap_and_mask_for_colormap</span> <span class='hs-varid'>argPtr1</span> <span class='hs-varid'>argPtr2</span> <span class='hs-varid'>arg3</span> <span class='hs-varid'>arg4</span> <span class='hs-varid'>arg5</span><span class='hs-layout'>)</span> <span class='hs-varid'>pixbuf</span>
<a name="line-835"></a> <span class='hs-varid'>colormap</span>
<a name="line-836"></a> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>pmRetPtr</span><span class='hs-layout'>)</span> <span class='hs-comment'>-- seems to reject Pixmap**, so cast</span>
<a name="line-837"></a> <span class='hs-layout'>(</span><span class='hs-varid'>castPtr</span> <span class='hs-varid'>bmRetPtr</span><span class='hs-layout'>)</span>
<a name="line-838"></a> <span class='hs-layout'>(</span><span class='hs-varid'>fromIntegral</span> <span class='hs-varid'>threshold</span><span class='hs-layout'>)</span>
<a name="line-839"></a> <span class='hs-varid'>pm</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixmap</span> <span class='hs-layout'>(</span><span class='hs-varid'>peek</span> <span class='hs-varid'>pmRetPtr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixmap</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-840"></a> <span class='hs-varid'>bm</span> <span class='hs-keyglyph'><-</span> <span class='hs-varid'>maybeNull</span> <span class='hs-layout'>(</span><span class='hs-varid'>constructNewGObject</span> <span class='hs-varid'>mkPixmap</span><span class='hs-layout'>)</span> <span class='hs-layout'>(</span><span class='hs-varid'>peek</span> <span class='hs-varid'>bmRetPtr</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Bitmap</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-841"></a> <span class='hs-varid'>return</span> <span class='hs-layout'>(</span><span class='hs-varid'>pm</span><span class='hs-layout'>,</span> <span class='hs-varid'>bm</span><span class='hs-layout'>)</span>
<a name="line-842"></a>
<a name="line-843"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_colorspace"</span>
<a name="line-844"></a> <span class='hs-varid'>gdk_pixbuf_get_colorspace</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-845"></a>
<a name="line-846"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_n_channels"</span>
<a name="line-847"></a> <span class='hs-varid'>gdk_pixbuf_get_n_channels</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-848"></a>
<a name="line-849"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_has_alpha"</span>
<a name="line-850"></a> <span class='hs-varid'>gdk_pixbuf_get_has_alpha</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-851"></a>
<a name="line-852"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_bits_per_sample"</span>
<a name="line-853"></a> <span class='hs-varid'>gdk_pixbuf_get_bits_per_sample</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-854"></a>
<a name="line-855"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_pixels"</span>
<a name="line-856"></a> <span class='hs-varid'>gdk_pixbuf_get_pixels</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CUChar</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-857"></a>
<a name="line-858"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_width"</span>
<a name="line-859"></a> <span class='hs-varid'>gdk_pixbuf_get_width</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-860"></a>
<a name="line-861"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_height"</span>
<a name="line-862"></a> <span class='hs-varid'>gdk_pixbuf_get_height</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-863"></a>
<a name="line-864"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_rowstride"</span>
<a name="line-865"></a> <span class='hs-varid'>gdk_pixbuf_get_rowstride</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-866"></a>
<a name="line-867"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_option"</span>
<a name="line-868"></a> <span class='hs-varid'>gdk_pixbuf_get_option</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-869"></a>
<a name="line-870"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_error_quark"</span>
<a name="line-871"></a> <span class='hs-varid'>gdk_pixbuf_error_quark</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>CUInt</span>
<a name="line-872"></a>
<a name="line-873"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_new_from_file"</span>
<a name="line-874"></a> <span class='hs-varid'>gdk_pixbuf_new_from_file</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-875"></a>
<a name="line-876"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gdk_pixbuf_new_from_file_at_size"</span>
<a name="line-877"></a> <span class='hs-varid'>gdk_pixbuf_new_from_file_at_size</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-878"></a>
<a name="line-879"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gdk_pixbuf_new_from_file_at_scale"</span>
<a name="line-880"></a> <span class='hs-varid'>gdk_pixbuf_new_from_file_at_scale</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-881"></a>
<a name="line-882"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_savev"</span>
<a name="line-883"></a> <span class='hs-varid'>gdk_pixbuf_savev</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>CInt</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-884"></a>
<a name="line-885"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gdk_pixbuf_new"</span>
<a name="line-886"></a> <span class='hs-varid'>gdk_pixbuf_new</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-887"></a>
<a name="line-888"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gdk_pixbuf_new_from_xpm_data"</span>
<a name="line-889"></a> <span class='hs-varid'>gdk_pixbuf_new_from_xpm_data</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CChar</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-890"></a>
<a name="line-891"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_new_from_inline"</span>
<a name="line-892"></a> <span class='hs-varid'>gdk_pixbuf_new_from_inline</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>CUChar</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-893"></a>
<a name="line-894"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_new_subpixbuf"</span>
<a name="line-895"></a> <span class='hs-varid'>gdk_pixbuf_new_subpixbuf</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-896"></a>
<a name="line-897"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_copy"</span>
<a name="line-898"></a> <span class='hs-varid'>gdk_pixbuf_copy</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-899"></a>
<a name="line-900"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gdk_pixbuf_scale_simple"</span>
<a name="line-901"></a> <span class='hs-varid'>gdk_pixbuf_scale_simple</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-902"></a>
<a name="line-903"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_scale"</span>
<a name="line-904"></a> <span class='hs-varid'>gdk_pixbuf_scale</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-905"></a>
<a name="line-906"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_composite"</span>
<a name="line-907"></a> <span class='hs-varid'>gdk_pixbuf_composite</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CDouble</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-908"></a>
<a name="line-909"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gdk_pixbuf_flip"</span>
<a name="line-910"></a> <span class='hs-varid'>gdk_pixbuf_flip</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-911"></a>
<a name="line-912"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>safe</span> <span class='hs-str'>"gdk_pixbuf_rotate_simple"</span>
<a name="line-913"></a> <span class='hs-varid'>gdk_pixbuf_rotate_simple</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-914"></a>
<a name="line-915"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_add_alpha"</span>
<a name="line-916"></a> <span class='hs-varid'>gdk_pixbuf_add_alpha</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CUChar</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CUChar</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CUChar</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-917"></a>
<a name="line-918"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_copy_area"</span>
<a name="line-919"></a> <span class='hs-varid'>gdk_pixbuf_copy_area</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-920"></a>
<a name="line-921"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_fill"</span>
<a name="line-922"></a> <span class='hs-varid'>gdk_pixbuf_fill</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CUInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-923"></a>
<a name="line-924"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_get_from_drawable"</span>
<a name="line-925"></a> <span class='hs-varid'>gdk_pixbuf_get_from_drawable</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Drawable</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Colormap</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-926"></a>
<a name="line-927"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_render_threshold_alpha"</span>
<a name="line-928"></a> <span class='hs-varid'>gdk_pixbuf_render_threshold_alpha</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
<a name="line-929"></a>
<a name="line-930"></a><span class='hs-keyword'>foreign</span> <span class='hs-keyword'>import</span> <span class='hs-keyword'>ccall</span> <span class='hs-keyword'>unsafe</span> <span class='hs-str'>"gdk_pixbuf_render_pixmap_and_mask_for_colormap"</span>
<a name="line-931"></a> <span class='hs-varid'>gdk_pixbuf_render_pixmap_and_mask_for_colormap</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixbuf</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Colormap</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>Pixmap</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-layout'>(</span><span class='hs-conid'>Ptr</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>CInt</span> <span class='hs-keyglyph'>-></span> <span class='hs-layout'>(</span><span class='hs-conid'>IO</span> <span class='hs-conid'>()</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span>
</pre></body>
</html>
