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<h1>FXImageView.h</h1><div class="fragment"><pre>00001 <span class="comment">/********************************************************************************</span>
00002 <span class="comment">* *</span>
00003 <span class="comment">* I m a g e V i e w W i d g e t *</span>
00004 <span class="comment">* *</span>
00005 <span class="comment">*********************************************************************************</span>
00006 <span class="comment">* Copyright (C) 2000,2004 by Jeroen van der Zijp. All Rights Reserved. *</span>
00007 <span class="comment">*********************************************************************************</span>
00008 <span class="comment">* This library is free software; you can redistribute it and/or *</span>
00009 <span class="comment">* modify it under the terms of the GNU Lesser General Public *</span>
00010 <span class="comment">* License as published by the Free Software Foundation; either *</span>
00011 <span class="comment">* version 2.1 of the License, or (at your option) any later version. *</span>
00012 <span class="comment">* *</span>
00013 <span class="comment">* This library is distributed in the hope that it will be useful, *</span>
00014 <span class="comment">* but WITHOUT ANY WARRANTY; without even the implied warranty of *</span>
00015 <span class="comment">* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *</span>
00016 <span class="comment">* Lesser General Public License for more details. *</span>
00017 <span class="comment">* *</span>
00018 <span class="comment">* You should have received a copy of the GNU Lesser General Public *</span>
00019 <span class="comment">* License along with this library; if not, write to the Free Software *</span>
00020 <span class="comment">* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. *</span>
00021 <span class="comment">*********************************************************************************</span>
00022 <span class="comment">* $Id: FXImageView.h,v 1.13 2004/02/08 17:17:33 fox Exp $ *</span>
00023 <span class="comment">********************************************************************************/</span>
00024 <span class="preprocessor">#ifndef FXIMAGEVIEW_H</span>
00025 <span class="preprocessor"></span><span class="preprocessor">#define FXIMAGEVIEW_H</span>
00026 <span class="preprocessor"></span>
00027 <span class="preprocessor">#ifndef FXSCROLLAREA_H</span>
00028 <span class="preprocessor"></span><span class="preprocessor">#include "FXScrollArea.h"</span>
00029 <span class="preprocessor">#endif</span>
00030 <span class="preprocessor"></span>
00031 <span class="keyword">namespace </span>FX {
00032
00033
00034 <span class="keyword">class </span>FXImage;
00035
00036 <span class="comment"></span>
00037 <span class="comment">/// Image alignment styles</span>
00038 <span class="comment"></span><span class="keyword">enum</span> {
00039 <a class="code" href="group__FXImageView__0.html#a0a531">IMAGEVIEW_NORMAL</a> = 0, <span class="comment">/// Normal mode is centered</span>
00040 <span class="comment"></span> <a class="code" href="group__FXImageView__0.html#a0a532">IMAGEVIEW_CENTER_X</a> = 0, <span class="comment">/// Centered horizontally</span>
00041 <span class="comment"></span> <a class="code" href="group__FXImageView__0.html#a0a533">IMAGEVIEW_LEFT</a> = 0x00100000, <span class="comment">/// Left-aligned</span>
00042 <span class="comment"></span> <a class="code" href="group__FXImageView__0.html#a0a534">IMAGEVIEW_RIGHT</a> = 0x00200000, <span class="comment">/// Right-aligned</span>
00043 <span class="comment"></span> <a class="code" href="group__FXImageView__0.html#a0a535">IMAGEVIEW_CENTER_Y</a> = 0, <span class="comment">/// Centered vertically</span>
00044 <span class="comment"></span> <a class="code" href="group__FXImageView__0.html#a0a536">IMAGEVIEW_TOP</a> = 0x00400000, <span class="comment">/// Top-aligned</span>
00045 <span class="comment"></span> <a class="code" href="group__FXImageView__0.html#a0a537">IMAGEVIEW_BOTTOM</a> = 0x00800000 <span class="comment">/// Bottom-aligned</span>
00046 <span class="comment"></span> };
00047
00048 <span class="comment"></span>
00049 <span class="comment">/**</span>
00050 <span class="comment">* The Image View widget display a scrollable view of an image.</span>
00051 <span class="comment">*/</span>
00052 <span class="keyword">class </span>FXAPI FXImageView : <span class="keyword">public</span> FXScrollArea {
00053 FXDECLARE(FXImageView)
00054 <span class="keyword">protected</span>:
00055 FXImage *image; <span class="comment">// Image to view</span>
00056 FXint grabx; <span class="comment">// Grab point x</span>
00057 FXint graby; <span class="comment">// Grab point y</span>
00058 <span class="keyword">protected</span>:
<a name="l00059"></a><a class="code" href="classFX_1_1FXImageView.html">00059</a> FXImageView();
00060 <span class="keyword">private</span>:
00061 FXImageView(<span class="keyword">const</span> FXImageView&);
00062 FXImageView &operator=(<span class="keyword">const</span> FXImageView&);
00063 <span class="keyword">public</span>:
00064 <span class="keywordtype">long</span> onPaint(<a class="code" href="classFX_1_1FXObject.html">FXObject</a>*,FXSelector,<span class="keywordtype">void</span>*);
00065 <span class="keywordtype">long</span> onMotion(<a class="code" href="classFX_1_1FXObject.html">FXObject</a>*,FXSelector,<span class="keywordtype">void</span>*);
00066 <span class="keywordtype">long</span> onRightBtnPress(<a class="code" href="classFX_1_1FXObject.html">FXObject</a>*,FXSelector,<span class="keywordtype">void</span>*);
00067 <span class="keywordtype">long</span> onRightBtnRelease(<a class="code" href="classFX_1_1FXObject.html">FXObject</a>*,FXSelector,<span class="keywordtype">void</span>*);
00068 <span class="keyword">public</span>:
00069 <span class="keyword">enum</span> {
00070 ID_XYZ=FXScrollArea::ID_LAST,
00071 ID_LAST
00072 };
00073 <span class="keyword">public</span>:
00074 <span class="comment"></span>
00075 <span class="comment"> /// Construct a scroll window</span>
00076 <span class="comment"></span> FXImageView(FXComposite* p,FXImage* img=NULL,FXObject* tgt=NULL,FXSelector sel=0,FXuint opts=0,FXint x=0,FXint y=0,FXint w=0,FXint h=0);
00077 <span class="comment"></span>
00078 <span class="comment"> /// Create server-side resources</span>
00079 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> create();
00080 <span class="comment"></span>
00081 <span class="comment"> /// Detach server-side resources</span>
00082 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> detach();
00083 <span class="comment"></span>
00084 <span class="comment"> /// Perform layout</span>
00085 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> layout();
00086 <span class="comment"></span>
00087 <span class="comment"> /// Image view widget can receive focus</span>
00088 <span class="comment"></span> <span class="keyword">virtual</span> FXbool canFocus() <span class="keyword">const</span>;
00089 <span class="comment"></span>
00090 <span class="comment"> /// Return the width of the contents</span>
00091 <span class="comment"></span> <span class="keyword">virtual</span> FXint getContentWidth();
00092 <span class="comment"></span>
00093 <span class="comment"> /// Return the height of the contents</span>
<a name="l00094"></a><a class="code" href="classFX_1_1FXImageView.html#a8">00094</a> <span class="comment"></span> <span class="keyword">virtual</span> FXint getContentHeight();
00095 <span class="comment"></span>
00096 <span class="comment"> /// Change image</span>
00097 <span class="comment"></span> <span class="keywordtype">void</span> setImage(<a class="code" href="classFX_1_1FXImage.html">FXImage</a>* img);
00098 <span class="comment"></span>
00099 <span class="comment"> /// Return image</span>
00100 <span class="comment"></span> <a class="code" href="classFX_1_1FXImage.html">FXImage</a>* getImage()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> image; }
00101 <span class="comment"></span>
00102 <span class="comment"> /// Set the current alignment.</span>
00103 <span class="comment"></span> <span class="keywordtype">void</span> setAlignment(FXuint mode);
00104 <span class="comment"></span>
00105 <span class="comment"> /// Get the current alignment.</span>
00106 <span class="comment"></span> FXuint getAlignment() <span class="keyword">const</span>;
00107 <span class="comment"></span>
00108 <span class="comment"> /// Save list to a stream</span>
00109 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> save(FXStream& store) <span class="keyword">const</span>;
00110 <span class="comment"></span>
00111 <span class="comment"> /// Load list from a stream</span>
00112 <span class="comment"></span> <span class="keyword">virtual</span> <span class="keywordtype">void</span> load(FXStream& store);
00113 <span class="comment"></span>
00114 <span class="comment"> /// Destroy</span>
00115 <span class="comment"></span> <span class="keyword">virtual</span> ~FXImageView();
00116 };
00117
00118 }
00119
00120 <span class="preprocessor">#endif</span>
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