<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>mainwindow.cpp Example File | Qt Widgets 5.9</title>
<link rel="stylesheet" type="text/css" href="style/offline-simple.css" />
<script type="text/javascript">
document.getElementsByTagName("link").item(0).setAttribute("href", "style/offline.css");
// loading style sheet breaks anchors that were jumped to before
// so force jumping to anchor again
setTimeout(function() {
var anchor = location.hash;
// need to jump to different anchor first (e.g. none)
location.hash = "#";
setTimeout(function() {
location.hash = anchor;
}, 0);
}, 0);
</script>
</head>
<body>
<div class="header" id="qtdocheader">
<div class="main">
<div class="main-rounded">
<div class="navigationbar">
<table><tr>
<td >Qt 5.9</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-widgets-icons-example.html">Icons Example</a></td><td >mainwindow.cpp Example File</td></tr></table><table class="buildversion"><tr>
<td id="buildversion" width="100%" align="right">Qt 5.9.4 Reference Documentation</td>
</tr></table>
</div>
</div>
<div class="content">
<div class="line">
<div class="content mainContent">
<div class="sidebar"><div class="sidebar-content" id="sidebar-content"></div></div>
<h1 class="title">mainwindow.cpp Example File</h1>
<span class="subtitle">widgets/icons/mainwindow.cpp</span>
<!-- $$$widgets/icons/mainwindow.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include <QtWidgets></span>
<span class="preprocessor">#include "iconpreviewarea.h"</span>
<span class="preprocessor">#include "iconsizespinbox.h"</span>
<span class="preprocessor">#include "imagedelegate.h"</span>
<span class="preprocessor">#include "mainwindow.h"</span>
<span class="keyword">enum</span> { OtherSize <span class="operator">=</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_CustomBase };
MainWindow<span class="operator">::</span>MainWindow()
{
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>centralWidget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>(<span class="keyword">this</span>);
setCentralWidget(centralWidget);
createActions();
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>(centralWidget);
<span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>previewGroupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgroupbox.html">QGroupBox</a></span>(tr(<span class="string">"Preview"</span>));
previewArea <span class="operator">=</span> <span class="keyword">new</span> IconPreviewArea(previewGroupBox);
<span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>previewLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>(previewGroupBox);
previewLayout<span class="operator">-</span><span class="operator">></span>addWidget(previewArea);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(previewGroupBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(createImagesGroupBox()<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
<span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>vBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>;
vBox<span class="operator">-</span><span class="operator">></span>addWidget(createIconSizeGroupBox());
vBox<span class="operator">-</span><span class="operator">></span>addWidget(createHighDpiIconSizeGroupBox());
vBox<span class="operator">-</span><span class="operator">></span>addItem(<span class="keyword">new</span> <span class="type"><a href="qspaceritem.html">QSpacerItem</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Ignored<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>MinimumExpanding));
mainLayout<span class="operator">-</span><span class="operator">></span>addLayout(vBox<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>);
createContextMenu();
setWindowTitle(tr(<span class="string">"Icons"</span>));
checkCurrentStyle();
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>button(OtherSize)<span class="operator">-</span><span class="operator">></span>click();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>show()
{
<span class="type"><a href="qmainwindow.html">QMainWindow</a></span><span class="operator">::</span>show();
connect(windowHandle()<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="../qtgui/qwindow.html">QWindow</a></span><span class="operator">::</span>screenChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>screenChanged);
screenChanged();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>about()
{
<span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>about(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"About Icons"</span>)<span class="operator">,</span>
tr(<span class="string">"The <b>Icons</b> example illustrates how Qt renders an icon in "</span>
<span class="string">"different modes (active, normal, disabled, and selected) and "</span>
<span class="string">"states (on and off) based on a set of images."</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>changeStyle(bool checked)
{
<span class="keyword">if</span> (<span class="operator">!</span>checked)
<span class="keyword">return</span>;
<span class="keyword">const</span> <span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>action <span class="operator">=</span> qobject_cast<span class="operator"><</span><span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span><span class="operator">></span>(sender());
<span class="type"><a href="qstyle.html">QStyle</a></span> <span class="operator">*</span>style <span class="operator">=</span> <span class="type"><a href="qstylefactory.html">QStyleFactory</a></span><span class="operator">::</span>create(action<span class="operator">-</span><span class="operator">></span>data()<span class="operator">.</span>toString());
Q_ASSERT(style);
<span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>setStyle(style);
foreach (<span class="type"><a href="qabstractbutton.html">QAbstractButton</a></span> <span class="operator">*</span>button<span class="operator">,</span> sizeButtonGroup<span class="operator">-</span><span class="operator">></span>buttons()) {
<span class="keyword">const</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PixelMetric metric <span class="operator">=</span> <span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PixelMetric<span class="operator">></span>(sizeButtonGroup<span class="operator">-</span><span class="operator">></span>id(button));
<span class="keyword">const</span> <span class="type">int</span> value <span class="operator">=</span> style<span class="operator">-</span><span class="operator">></span>pixelMetric(metric);
<span class="keyword">switch</span> (metric) {
<span class="keyword">case</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_SmallIconSize:
button<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Small (%1 x %1)"</span>)<span class="operator">.</span>arg(value));
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_LargeIconSize:
button<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Large (%1 x %1)"</span>)<span class="operator">.</span>arg(value));
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_ToolBarIconSize:
button<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Toolbars (%1 x %1)"</span>)<span class="operator">.</span>arg(value));
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_ListViewIconSize:
button<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"List views (%1 x %1)"</span>)<span class="operator">.</span>arg(value));
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_IconViewIconSize:
button<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Icon views (%1 x %1)"</span>)<span class="operator">.</span>arg(value));
<span class="keyword">break</span>;
<span class="keyword">case</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_TabBarIconSize:
button<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Tab bars (%1 x %1)"</span>)<span class="operator">.</span>arg(value));
<span class="keyword">break</span>;
<span class="keyword">default</span>:
<span class="keyword">break</span>;
}
}
triggerChangeSize();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>changeSize(<span class="type">int</span> id<span class="operator">,</span> bool checked)
{
<span class="keyword">if</span> (<span class="operator">!</span>checked)
<span class="keyword">return</span>;
<span class="keyword">const</span> bool other <span class="operator">=</span> id <span class="operator">=</span><span class="operator">=</span> <span class="type">int</span>(OtherSize);
<span class="keyword">const</span> <span class="type">int</span> extent <span class="operator">=</span> other
<span class="operator">?</span> otherSpinBox<span class="operator">-</span><span class="operator">></span>value()
: <span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>style()<span class="operator">-</span><span class="operator">></span>pixelMetric(<span class="keyword">static_cast</span><span class="operator"><</span><span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PixelMetric<span class="operator">></span>(id));
previewArea<span class="operator">-</span><span class="operator">></span>setSize(<span class="type"><a href="../qtcore/qsize.html">QSize</a></span>(extent<span class="operator">,</span> extent));
otherSpinBox<span class="operator">-</span><span class="operator">></span>setEnabled(other);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>triggerChangeSize()
{
changeSize(sizeButtonGroup<span class="operator">-</span><span class="operator">></span>checkedId()<span class="operator">,</span> <span class="keyword">true</span>);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>changeIcon()
{
<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span> icon;
<span class="keyword">for</span> (<span class="type">int</span> row <span class="operator">=</span> <span class="number">0</span>; row <span class="operator"><</span> imagesTable<span class="operator">-</span><span class="operator">></span>rowCount(); <span class="operator">+</span><span class="operator">+</span>row) {
<span class="keyword">const</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>fileItem <span class="operator">=</span> imagesTable<span class="operator">-</span><span class="operator">></span>item(row<span class="operator">,</span> <span class="number">0</span>);
<span class="keyword">const</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>modeItem <span class="operator">=</span> imagesTable<span class="operator">-</span><span class="operator">></span>item(row<span class="operator">,</span> <span class="number">1</span>);
<span class="keyword">const</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>stateItem <span class="operator">=</span> imagesTable<span class="operator">-</span><span class="operator">></span>item(row<span class="operator">,</span> <span class="number">2</span>);
<span class="keyword">if</span> (fileItem<span class="operator">-</span><span class="operator">></span>checkState() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Checked) {
<span class="keyword">const</span> <span class="type">int</span> modeIndex <span class="operator">=</span> IconPreviewArea<span class="operator">::</span>iconModeNames()<span class="operator">.</span>indexOf(modeItem<span class="operator">-</span><span class="operator">></span>text());
Q_ASSERT(modeIndex <span class="operator">></span><span class="operator">=</span> <span class="number">0</span>);
<span class="keyword">const</span> <span class="type">int</span> stateIndex <span class="operator">=</span> IconPreviewArea<span class="operator">::</span>iconStateNames()<span class="operator">.</span>indexOf(stateItem<span class="operator">-</span><span class="operator">></span>text());
Q_ASSERT(stateIndex <span class="operator">></span><span class="operator">=</span> <span class="number">0</span>);
<span class="keyword">const</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Mode mode <span class="operator">=</span> IconPreviewArea<span class="operator">::</span>iconModes()<span class="operator">.</span>at(modeIndex);
<span class="keyword">const</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>State state <span class="operator">=</span> IconPreviewArea<span class="operator">::</span>iconStates()<span class="operator">.</span>at(stateIndex);
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> fileName <span class="operator">=</span> fileItem<span class="operator">-</span><span class="operator">></span>data(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole)<span class="operator">.</span>toString();
<span class="type"><a href="../qtgui/qimage.html">QImage</a></span> image(fileName);
<span class="keyword">if</span> (<span class="operator">!</span>image<span class="operator">.</span>isNull())
icon<span class="operator">.</span>addPixmap(<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span><span class="operator">::</span>fromImage(image)<span class="operator">,</span> mode<span class="operator">,</span> state);
}
}
previewArea<span class="operator">-</span><span class="operator">></span>setIcon(icon);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>addSampleImages()
{
addImages(QLatin1String(SRCDIR) <span class="operator">+</span> QLatin1String(<span class="string">"/images"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>addOtherImages()
{
<span class="keyword">static</span> bool firstInvocation <span class="operator">=</span> <span class="keyword">true</span>;
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> directory;
<span class="keyword">if</span> (firstInvocation) {
firstInvocation <span class="operator">=</span> <span class="keyword">false</span>;
directory <span class="operator">=</span> <span class="type"><a href="../qtcore/qstandardpaths.html">QStandardPaths</a></span><span class="operator">::</span>standardLocations(<span class="type"><a href="../qtcore/qstandardpaths.html">QStandardPaths</a></span><span class="operator">::</span>PicturesLocation)<span class="operator">.</span>value(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span>());
}
addImages(directory);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>addImages(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>directory)
{
<span class="type"><a href="qfiledialog.html">QFileDialog</a></span> fileDialog(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Open Images"</span>)<span class="operator">,</span> directory);
<span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> mimeTypeFilters;
foreach (<span class="keyword">const</span> <span class="type"><a href="../qtcore/qbytearray.html">QByteArray</a></span> <span class="operator">&</span>mimeTypeName<span class="operator">,</span> <span class="type"><a href="../qtgui/qimagereader.html">QImageReader</a></span><span class="operator">::</span>supportedMimeTypes())
mimeTypeFilters<span class="operator">.</span>append(mimeTypeName);
mimeTypeFilters<span class="operator">.</span>sort();
fileDialog<span class="operator">.</span>setMimeTypeFilters(mimeTypeFilters);
fileDialog<span class="operator">.</span>selectMimeTypeFilter(QLatin1String(<span class="string">"image/png"</span>));
fileDialog<span class="operator">.</span>setAcceptMode(<span class="type"><a href="qfiledialog.html">QFileDialog</a></span><span class="operator">::</span>AcceptOpen);
fileDialog<span class="operator">.</span>setFileMode(<span class="type"><a href="qfiledialog.html">QFileDialog</a></span><span class="operator">::</span>ExistingFiles);
<span class="keyword">if</span> (<span class="operator">!</span>nativeFileDialogAct<span class="operator">-</span><span class="operator">></span>isChecked())
fileDialog<span class="operator">.</span>setOption(<span class="type"><a href="qfiledialog.html">QFileDialog</a></span><span class="operator">::</span>DontUseNativeDialog);
<span class="keyword">if</span> (fileDialog<span class="operator">.</span>exec() <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qdialog.html">QDialog</a></span><span class="operator">::</span>Accepted)
loadImages(fileDialog<span class="operator">.</span>selectedFiles());
}
<span class="type">void</span> MainWindow<span class="operator">::</span>loadImages(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> <span class="operator">&</span>fileNames)
{
foreach (<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>fileName<span class="operator">,</span> fileNames) {
<span class="keyword">const</span> <span class="type">int</span> row <span class="operator">=</span> imagesTable<span class="operator">-</span><span class="operator">></span>rowCount();
imagesTable<span class="operator">-</span><span class="operator">></span>setRowCount(row <span class="operator">+</span> <span class="number">1</span>);
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span> fileInfo(fileName);
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> imageName <span class="operator">=</span> fileInfo<span class="operator">.</span>baseName();
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> fileName2x <span class="operator">=</span> fileInfo<span class="operator">.</span>absolutePath()
<span class="operator">+</span> QLatin1Char(<span class="char">'/'</span>) <span class="operator">+</span> imageName <span class="operator">+</span> QLatin1String(<span class="string">"@2x."</span>) <span class="operator">+</span> fileInfo<span class="operator">.</span>suffix();
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qfileinfo.html">QFileInfo</a></span> fileInfo2x(fileName2x);
<span class="keyword">const</span> <span class="type"><a href="../qtgui/qimage.html">QImage</a></span> image(fileName);
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> toolTip <span class="operator">=</span>
tr(<span class="string">"Directory: %1\nFile: %2\nFile@2x: %3\nSize: %4x%5"</span>)
<span class="operator">.</span>arg(<span class="type"><a href="../qtcore/qdir.html">QDir</a></span><span class="operator">::</span>toNativeSeparators(fileInfo<span class="operator">.</span>absolutePath())<span class="operator">,</span> fileInfo<span class="operator">.</span>fileName())
<span class="operator">.</span>arg(fileInfo2x<span class="operator">.</span>exists() <span class="operator">?</span> fileInfo2x<span class="operator">.</span>fileName() : tr(<span class="string">"<None>"</span>))
<span class="operator">.</span>arg(image<span class="operator">.</span>width())<span class="operator">.</span>arg(image<span class="operator">.</span>height());
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>fileItem <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(imageName);
fileItem<span class="operator">-</span><span class="operator">></span>setData(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>UserRole<span class="operator">,</span> fileName);
fileItem<span class="operator">-</span><span class="operator">></span>setIcon(<span class="type"><a href="../qtgui/qpixmap.html">QPixmap</a></span><span class="operator">::</span>fromImage(image));
fileItem<span class="operator">-</span><span class="operator">></span>setFlags((fileItem<span class="operator">-</span><span class="operator">></span>flags() <span class="operator">|</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsUserCheckable) <span class="operator">&</span> <span class="operator">~</span><span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ItemIsEditable);
fileItem<span class="operator">-</span><span class="operator">></span>setToolTip(toolTip);
<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Mode mode <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Normal;
<span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>State state <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Off;
<span class="keyword">if</span> (guessModeStateAct<span class="operator">-</span><span class="operator">></span>isChecked()) {
<span class="keyword">if</span> (imageName<span class="operator">.</span>contains(QLatin1String(<span class="string">"_act"</span>)<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive))
mode <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Active;
<span class="keyword">else</span> <span class="keyword">if</span> (imageName<span class="operator">.</span>contains(QLatin1String(<span class="string">"_dis"</span>)<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive))
mode <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Disabled;
<span class="keyword">else</span> <span class="keyword">if</span> (imageName<span class="operator">.</span>contains(QLatin1String(<span class="string">"_sel"</span>)<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive))
mode <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>Selected;
<span class="keyword">if</span> (imageName<span class="operator">.</span>contains(QLatin1String(<span class="string">"_on"</span>)<span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>CaseInsensitive))
state <span class="operator">=</span> <span class="type"><a href="../qtgui/qicon.html">QIcon</a></span><span class="operator">::</span>On;
}
imagesTable<span class="operator">-</span><span class="operator">></span>setItem(row<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> fileItem);
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>modeItem <span class="operator">=</span>
<span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(IconPreviewArea<span class="operator">::</span>iconModeNames()<span class="operator">.</span>at(IconPreviewArea<span class="operator">::</span>iconModes()<span class="operator">.</span>indexOf(mode)));
modeItem<span class="operator">-</span><span class="operator">></span>setToolTip(toolTip);
imagesTable<span class="operator">-</span><span class="operator">></span>setItem(row<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> modeItem);
<span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span> <span class="operator">*</span>stateItem <span class="operator">=</span>
<span class="keyword">new</span> <span class="type"><a href="qtablewidgetitem.html">QTableWidgetItem</a></span>(IconPreviewArea<span class="operator">::</span>iconStateNames()<span class="operator">.</span>at(IconPreviewArea<span class="operator">::</span>iconStates()<span class="operator">.</span>indexOf(state)));
stateItem<span class="operator">-</span><span class="operator">></span>setToolTip(toolTip);
imagesTable<span class="operator">-</span><span class="operator">></span>setItem(row<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> stateItem);
imagesTable<span class="operator">-</span><span class="operator">></span>openPersistentEditor(modeItem);
imagesTable<span class="operator">-</span><span class="operator">></span>openPersistentEditor(stateItem);
fileItem<span class="operator">-</span><span class="operator">></span>setCheckState(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Checked);
}
}
<span class="type">void</span> MainWindow<span class="operator">::</span>useHighDpiPixmapsChanged(<span class="type">int</span> checkState)
{
<span class="type"><a href="../qtcore/qcoreapplication.html">QCoreApplication</a></span><span class="operator">::</span>setAttribute(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AA_UseHighDpiPixmaps<span class="operator">,</span> checkState <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Checked);
changeIcon();
}
<span class="type">void</span> MainWindow<span class="operator">::</span>removeAllImages()
{
imagesTable<span class="operator">-</span><span class="operator">></span>setRowCount(<span class="number">0</span>);
changeIcon();
}
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>MainWindow<span class="operator">::</span>createImagesGroupBox()
{
<span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>imagesGroupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgroupbox.html">QGroupBox</a></span>(tr(<span class="string">"Images"</span>));
imagesTable <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qtablewidget.html">QTableWidget</a></span>;
imagesTable<span class="operator">-</span><span class="operator">></span>setSelectionMode(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>NoSelection);
imagesTable<span class="operator">-</span><span class="operator">></span>setItemDelegate(<span class="keyword">new</span> ImageDelegate(<span class="keyword">this</span>));
<span class="type"><a href="../qtcore/qstringlist.html">QStringList</a></span> labels;
labels <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Image"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"Mode"</span>) <span class="operator"><</span><span class="operator"><</span> tr(<span class="string">"State"</span>);
imagesTable<span class="operator">-</span><span class="operator">></span>horizontalHeader()<span class="operator">-</span><span class="operator">></span>setDefaultSectionSize(<span class="number">90</span>);
imagesTable<span class="operator">-</span><span class="operator">></span>setColumnCount(<span class="number">3</span>);
imagesTable<span class="operator">-</span><span class="operator">></span>setHorizontalHeaderLabels(labels);
imagesTable<span class="operator">-</span><span class="operator">></span>horizontalHeader()<span class="operator">-</span><span class="operator">></span>setSectionResizeMode(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="qheaderview.html">QHeaderView</a></span><span class="operator">::</span>Stretch);
imagesTable<span class="operator">-</span><span class="operator">></span>horizontalHeader()<span class="operator">-</span><span class="operator">></span>setSectionResizeMode(<span class="number">1</span><span class="operator">,</span> <span class="type"><a href="qheaderview.html">QHeaderView</a></span><span class="operator">::</span>Fixed);
imagesTable<span class="operator">-</span><span class="operator">></span>horizontalHeader()<span class="operator">-</span><span class="operator">></span>setSectionResizeMode(<span class="number">2</span><span class="operator">,</span> <span class="type"><a href="qheaderview.html">QHeaderView</a></span><span class="operator">::</span>Fixed);
imagesTable<span class="operator">-</span><span class="operator">></span>verticalHeader()<span class="operator">-</span><span class="operator">></span>hide();
connect(imagesTable<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qtablewidget.html">QTableWidget</a></span><span class="operator">::</span>itemChanged<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>changeIcon);
<span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>(imagesGroupBox);
layout<span class="operator">-</span><span class="operator">></span>addWidget(imagesTable);
<span class="keyword">return</span> imagesGroupBox;
}
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>MainWindow<span class="operator">::</span>createIconSizeGroupBox()
{
<span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>iconSizeGroupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgroupbox.html">QGroupBox</a></span>(tr(<span class="string">"Icon Size"</span>));
sizeButtonGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qbuttongroup.html">QButtonGroup</a></span>(<span class="keyword">this</span>);
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>setExclusive(<span class="keyword">true</span>);
connect(sizeButtonGroup<span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="type">int</span><span class="operator">,</span> bool<span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span><span class="type"><a href="qbuttongroup.html">QButtonGroup</a></span><span class="operator">::</span>buttonToggled)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>changeSize);
<span class="type"><a href="qradiobutton.html">QRadioButton</a></span> <span class="operator">*</span>smallRadioButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qradiobutton.html">QRadioButton</a></span>;
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(smallRadioButton<span class="operator">,</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_SmallIconSize);
<span class="type"><a href="qradiobutton.html">QRadioButton</a></span> <span class="operator">*</span>largeRadioButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qradiobutton.html">QRadioButton</a></span>;
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(largeRadioButton<span class="operator">,</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_LargeIconSize);
<span class="type"><a href="qradiobutton.html">QRadioButton</a></span> <span class="operator">*</span>toolBarRadioButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qradiobutton.html">QRadioButton</a></span>;
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(toolBarRadioButton<span class="operator">,</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_ToolBarIconSize);
<span class="type"><a href="qradiobutton.html">QRadioButton</a></span> <span class="operator">*</span>listViewRadioButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qradiobutton.html">QRadioButton</a></span>;
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(listViewRadioButton<span class="operator">,</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_ListViewIconSize);
<span class="type"><a href="qradiobutton.html">QRadioButton</a></span> <span class="operator">*</span>iconViewRadioButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qradiobutton.html">QRadioButton</a></span>;
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(iconViewRadioButton<span class="operator">,</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_IconViewIconSize);
<span class="type"><a href="qradiobutton.html">QRadioButton</a></span> <span class="operator">*</span>tabBarRadioButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qradiobutton.html">QRadioButton</a></span>;
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(tabBarRadioButton<span class="operator">,</span> <span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">::</span>PM_TabBarIconSize);
<span class="type"><a href="qradiobutton.html">QRadioButton</a></span> <span class="operator">*</span>otherRadioButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qradiobutton.html">QRadioButton</a></span>(tr(<span class="string">"Other:"</span>));
sizeButtonGroup<span class="operator">-</span><span class="operator">></span>addButton(otherRadioButton<span class="operator">,</span> OtherSize);
otherSpinBox <span class="operator">=</span> <span class="keyword">new</span> IconSizeSpinBox;
otherSpinBox<span class="operator">-</span><span class="operator">></span>setRange(<span class="number">8</span><span class="operator">,</span> <span class="number">256</span>);
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> spinBoxToolTip <span class="operator">=</span>
tr(<span class="string">"Enter a custom size within %1..%2"</span>)
<span class="operator">.</span>arg(otherSpinBox<span class="operator">-</span><span class="operator">></span>minimum())<span class="operator">.</span>arg(otherSpinBox<span class="operator">-</span><span class="operator">></span>maximum());
otherSpinBox<span class="operator">-</span><span class="operator">></span>setValue(<span class="number">64</span>);
otherSpinBox<span class="operator">-</span><span class="operator">></span>setToolTip(spinBoxToolTip);
otherRadioButton<span class="operator">-</span><span class="operator">></span>setToolTip(spinBoxToolTip);
connect(otherSpinBox<span class="operator">,</span> <span class="type">QOverload</span><span class="operator"><</span><span class="type">int</span><span class="operator">></span><span class="operator">::</span>of(<span class="operator">&</span><span class="type"><a href="qspinbox.html">QSpinBox</a></span><span class="operator">::</span>valueChanged)<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>triggerChangeSize);
<span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>otherSizeLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>;
otherSizeLayout<span class="operator">-</span><span class="operator">></span>addWidget(otherRadioButton);
otherSizeLayout<span class="operator">-</span><span class="operator">></span>addWidget(otherSpinBox);
otherSizeLayout<span class="operator">-</span><span class="operator">></span>addStretch();
<span class="type"><a href="qgridlayout.html">QGridLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>(iconSizeGroupBox);
layout<span class="operator">-</span><span class="operator">></span>addWidget(smallRadioButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(largeRadioButton<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(toolBarRadioButton<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(listViewRadioButton<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(iconViewRadioButton<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">1</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(tabBarRadioButton<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>);
layout<span class="operator">-</span><span class="operator">></span>addLayout(otherSizeLayout<span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">2</span>);
layout<span class="operator">-</span><span class="operator">></span>setRowStretch(<span class="number">4</span><span class="operator">,</span> <span class="number">1</span>);
<span class="keyword">return</span> iconSizeGroupBox;
}
<span class="type">void</span> MainWindow<span class="operator">::</span>screenChanged()
{
devicePixelRatioLabel<span class="operator">-</span><span class="operator">></span>setText(<span class="type"><a href="../qtcore/qstring.html">QString</a></span><span class="operator">::</span>number(devicePixelRatioF()));
<span class="keyword">if</span> (<span class="keyword">const</span> <span class="type"><a href="../qtgui/qwindow.html">QWindow</a></span> <span class="operator">*</span>window <span class="operator">=</span> windowHandle()) {
<span class="keyword">const</span> <span class="type"><a href="../qtgui/qscreen.html">QScreen</a></span> <span class="operator">*</span>screen <span class="operator">=</span> window<span class="operator">-</span><span class="operator">></span>screen();
<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> screenDescription <span class="operator">=</span>
tr(<span class="string">"\"%1\" (%2x%3)"</span>)<span class="operator">.</span>arg(screen<span class="operator">-</span><span class="operator">></span>name())
<span class="operator">.</span>arg(screen<span class="operator">-</span><span class="operator">></span>geometry()<span class="operator">.</span>width())<span class="operator">.</span>arg(screen<span class="operator">-</span><span class="operator">></span>geometry()<span class="operator">.</span>height());
screenNameLabel<span class="operator">-</span><span class="operator">></span>setText(screenDescription);
}
changeIcon();
}
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>MainWindow<span class="operator">::</span>createHighDpiIconSizeGroupBox()
{
<span class="type"><a href="qgroupbox.html">QGroupBox</a></span> <span class="operator">*</span>highDpiGroupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgroupbox.html">QGroupBox</a></span>(tr(<span class="string">"High DPI Scaling"</span>));
<span class="type"><a href="qformlayout.html">QFormLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qformlayout.html">QFormLayout</a></span>(highDpiGroupBox);
devicePixelRatioLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(highDpiGroupBox);
screenNameLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(highDpiGroupBox);
layout<span class="operator">-</span><span class="operator">></span>addRow(tr(<span class="string">"Screen:"</span>)<span class="operator">,</span> screenNameLabel);
layout<span class="operator">-</span><span class="operator">></span>addRow(tr(<span class="string">"Device pixel ratio:"</span>)<span class="operator">,</span> devicePixelRatioLabel);
<span class="type"><a href="qcheckbox.html">QCheckBox</a></span> <span class="operator">*</span>highDpiPixmapsCheckBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcheckbox.html">QCheckBox</a></span>(QLatin1String(<span class="string">"Qt::AA_UseHighDpiPixmaps"</span>));
highDpiPixmapsCheckBox<span class="operator">-</span><span class="operator">></span>setChecked(<span class="type"><a href="../qtcore/qcoreapplication.html">QCoreApplication</a></span><span class="operator">::</span>testAttribute(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AA_UseHighDpiPixmaps));
connect(highDpiPixmapsCheckBox<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qcheckbox.html">QCheckBox</a></span><span class="operator">::</span>stateChanged<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>useHighDpiPixmapsChanged);
layout<span class="operator">-</span><span class="operator">></span>addRow(highDpiPixmapsCheckBox);
<span class="keyword">return</span> highDpiGroupBox;
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createActions()
{
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>fileMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&File"</span>));
addSampleImagesAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Add &Sample Images..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
addSampleImagesAct<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+A"</span>));
connect(addSampleImagesAct<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qaction.html">QAction</a></span><span class="operator">::</span>triggered<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>addSampleImages);
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(addSampleImagesAct);
addOtherImagesAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Add Images..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
addOtherImagesAct<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Open);
connect(addOtherImagesAct<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qaction.html">QAction</a></span><span class="operator">::</span>triggered<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>addOtherImages);
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(addOtherImagesAct);
removeAllImagesAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Remove All Images"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
removeAllImagesAct<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+R"</span>));
connect(removeAllImagesAct<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qaction.html">QAction</a></span><span class="operator">::</span>triggered<span class="operator">,</span>
<span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>removeAllImages);
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(removeAllImagesAct);
fileMenu<span class="operator">-</span><span class="operator">></span>addSeparator();
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>exitAct <span class="operator">=</span> fileMenu<span class="operator">-</span><span class="operator">></span>addAction(tr(<span class="string">"&Quit"</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">::</span>close);
exitAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Quit);
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>viewMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&View"</span>));
styleActionGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qactiongroup.html">QActionGroup</a></span>(<span class="keyword">this</span>);
foreach (<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>styleName<span class="operator">,</span> <span class="type"><a href="qstylefactory.html">QStyleFactory</a></span><span class="operator">::</span>keys()) {
<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>action <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"%1 Style"</span>)<span class="operator">.</span>arg(styleName)<span class="operator">,</span> styleActionGroup);
action<span class="operator">-</span><span class="operator">></span>setData(styleName);
action<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
connect(action<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qaction.html">QAction</a></span><span class="operator">::</span>triggered<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>changeStyle);
viewMenu<span class="operator">-</span><span class="operator">></span>addAction(action);
}
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>settingsMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Settings"</span>));
guessModeStateAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Guess Image Mode/State"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
guessModeStateAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
guessModeStateAct<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
settingsMenu<span class="operator">-</span><span class="operator">></span>addAction(guessModeStateAct);
nativeFileDialogAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Use Native File Dialog"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
nativeFileDialogAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
nativeFileDialogAct<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
settingsMenu<span class="operator">-</span><span class="operator">></span>addAction(nativeFileDialogAct);
<span class="type"><a href="qmenu.html">QMenu</a></span> <span class="operator">*</span>helpMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Help"</span>));
helpMenu<span class="operator">-</span><span class="operator">></span>addAction(tr(<span class="string">"&About"</span>)<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> <span class="operator">&</span>MainWindow<span class="operator">::</span>about);
helpMenu<span class="operator">-</span><span class="operator">></span>addAction(tr(<span class="string">"About &Qt"</span>)<span class="operator">,</span> qApp<span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>aboutQt);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createContextMenu()
{
imagesTable<span class="operator">-</span><span class="operator">></span>setContextMenuPolicy(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>ActionsContextMenu);
imagesTable<span class="operator">-</span><span class="operator">></span>addAction(addSampleImagesAct);
imagesTable<span class="operator">-</span><span class="operator">></span>addAction(addOtherImagesAct);
imagesTable<span class="operator">-</span><span class="operator">></span>addAction(removeAllImagesAct);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>checkCurrentStyle()
{
foreach (<span class="type"><a href="qaction.html">QAction</a></span> <span class="operator">*</span>action<span class="operator">,</span> styleActionGroup<span class="operator">-</span><span class="operator">></span>actions()) {
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> styleName <span class="operator">=</span> action<span class="operator">-</span><span class="operator">></span>data()<span class="operator">.</span>toString();
<span class="type"><a href="../qtcore/qscopedpointer.html">QScopedPointer</a></span><span class="operator"><</span><span class="type"><a href="qstyle.html">QStyle</a></span><span class="operator">></span> candidate(<span class="type"><a href="qstylefactory.html">QStyleFactory</a></span><span class="operator">::</span>create(styleName));
Q_ASSERT(<span class="operator">!</span>candidate<span class="operator">.</span>isNull());
<span class="keyword">if</span> (candidate<span class="operator">-</span><span class="operator">></span>metaObject()<span class="operator">-</span><span class="operator">></span>className()
<span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>style()<span class="operator">-</span><span class="operator">></span>metaObject()<span class="operator">-</span><span class="operator">></span>className()) {
action<span class="operator">-</span><span class="operator">></span>trigger();
<span class="keyword">return</span>;
}
}
}
</pre>
</div>
<!-- @@@widgets/icons/mainwindow.cpp -->
</div>
</div>
</div>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
of their respective owners. </p>
</div>
</body>
</html>
distrib
>
Mageia
>
6
>
armv5tl
>
media
>
core-updates
>
by-pkgid
>
768f7d9f703884aa2562bf0a651086df
>
files
>
4506
