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<h1 class="title">mainwindow.cpp Example File</h1>
<span class="subtitle">mainwindows/menus/mainwindow.cpp</span>
<!-- $$$mainwindows/menus/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 "mainwindow.h"</span>
MainWindow<span class="operator">::</span>MainWindow()
{
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
setCentralWidget(widget);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>topFiller <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
topFiller<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding);
infoLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"<i>Choose a menu option, or right-click to "</span>
<span class="string">"invoke a context menu</i>"</span>));
infoLabel<span class="operator">-</span><span class="operator">></span>setFrameStyle(<span class="type"><a href="qframe.html">QFrame</a></span><span class="operator">::</span>StyledPanel <span class="operator">|</span> <span class="type"><a href="qframe.html">QFrame</a></span><span class="operator">::</span>Sunken);
infoLabel<span class="operator">-</span><span class="operator">></span>setAlignment(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>AlignCenter);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>bottomFiller <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qwidget.html">QWidget</a></span>;
bottomFiller<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding);
<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>;
layout<span class="operator">-</span><span class="operator">></span>setMargin(<span class="number">5</span>);
layout<span class="operator">-</span><span class="operator">></span>addWidget(topFiller);
layout<span class="operator">-</span><span class="operator">></span>addWidget(infoLabel);
layout<span class="operator">-</span><span class="operator">></span>addWidget(bottomFiller);
widget<span class="operator">-</span><span class="operator">></span>setLayout(layout);
createActions();
createMenus();
<span class="type"><a href="../qtcore/qstring.html">QString</a></span> message <span class="operator">=</span> tr(<span class="string">"A context menu is available by right-clicking"</span>);
statusBar()<span class="operator">-</span><span class="operator">></span>showMessage(message);
setWindowTitle(tr(<span class="string">"Menus"</span>));
setMinimumSize(<span class="number">160</span><span class="operator">,</span> <span class="number">160</span>);
resize(<span class="number">480</span><span class="operator">,</span> <span class="number">320</span>);
}
<span class="preprocessor">#ifndef QT_NO_CONTEXTMENU</span>
<span class="type">void</span> MainWindow<span class="operator">::</span>contextMenuEvent(<span class="type"><a href="../qtgui/qcontextmenuevent.html">QContextMenuEvent</a></span> <span class="operator">*</span>event)
{
<span class="type"><a href="qmenu.html">QMenu</a></span> menu(<span class="keyword">this</span>);
menu<span class="operator">.</span>addAction(cutAct);
menu<span class="operator">.</span>addAction(copyAct);
menu<span class="operator">.</span>addAction(pasteAct);
menu<span class="operator">.</span>exec(event<span class="operator">-</span><span class="operator">></span>globalPos());
}
<span class="preprocessor">#endif // QT_NO_CONTEXTMENU</span>
<span class="type">void</span> MainWindow<span class="operator">::</span>newFile()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>File|New</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>open()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>File|Open</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>save()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>File|Save</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>print()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>File|Print</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>undo()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Undo</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>redo()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Redo</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>cut()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Cut</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>copy()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Copy</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>paste()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Paste</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>bold()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Bold</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>italic()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Italic</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>leftAlign()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Left Align</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>rightAlign()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Right Align</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>justify()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Justify</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>center()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Center</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>setLineSpacing()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Set Line Spacing</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>setParagraphSpacing()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Edit|Format|Set Paragraph Spacing</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>about()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Help|About</b>"</span>));
<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 Menu"</span>)<span class="operator">,</span>
tr(<span class="string">"The <b>Menu</b> example shows how to create "</span>
<span class="string">"menu-bar menus and context menus."</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>aboutQt()
{
infoLabel<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Invoked <b>Help|About Qt</b>"</span>));
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createActions()
{
newAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&New"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
newAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>New);
newAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Create a new file"</span>));
connect(newAct<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>newFile);
openAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Open..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
openAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Open);
openAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Open an existing file"</span>));
connect(openAct<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>open);
saveAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Save"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
saveAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Save);
saveAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Save the document to disk"</span>));
connect(saveAct<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>save);
printAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Print..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
printAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Print);
printAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Print the document"</span>));
connect(printAct<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>print);
exitAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"E&xit"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
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);
exitAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Exit the application"</span>));
connect(exitAct<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><span class="type"><a href="qwidget.html">QWidget</a></span><span class="operator">::</span>close);
undoAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Undo"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
undoAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Undo);
undoAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Undo the last operation"</span>));
connect(undoAct<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>undo);
redoAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Redo"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
redoAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Redo);
redoAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Redo the last operation"</span>));
connect(redoAct<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>redo);
cutAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Cu&t"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
cutAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Cut);
cutAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Cut the current selection's contents to the "</span>
<span class="string">"clipboard"</span>));
connect(cutAct<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>cut);
copyAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Copy"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
copyAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Copy);
copyAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Copy the current selection's contents to the "</span>
<span class="string">"clipboard"</span>));
connect(copyAct<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>copy);
pasteAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Paste"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
pasteAct<span class="operator">-</span><span class="operator">></span>setShortcuts(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Paste);
pasteAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Paste the clipboard's contents into the current "</span>
<span class="string">"selection"</span>));
connect(pasteAct<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>paste);
boldAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Bold"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
boldAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
boldAct<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Bold);
boldAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Make the text bold"</span>));
connect(boldAct<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>bold);
<span class="type"><a href="../qtgui/qfont.html">QFont</a></span> boldFont <span class="operator">=</span> boldAct<span class="operator">-</span><span class="operator">></span>font();
boldFont<span class="operator">.</span>setBold(<span class="keyword">true</span>);
boldAct<span class="operator">-</span><span class="operator">></span>setFont(boldFont);
italicAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Italic"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
italicAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
italicAct<span class="operator">-</span><span class="operator">></span>setShortcut(<span class="type"><a href="../qtgui/qkeysequence.html">QKeySequence</a></span><span class="operator">::</span>Italic);
italicAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Make the text italic"</span>));
connect(italicAct<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>italic);
<span class="type"><a href="../qtgui/qfont.html">QFont</a></span> italicFont <span class="operator">=</span> italicAct<span class="operator">-</span><span class="operator">></span>font();
italicFont<span class="operator">.</span>setItalic(<span class="keyword">true</span>);
italicAct<span class="operator">-</span><span class="operator">></span>setFont(italicFont);
setLineSpacingAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Set &Line Spacing..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
setLineSpacingAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Change the gap between the lines of a "</span>
<span class="string">"paragraph"</span>));
connect(setLineSpacingAct<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>setLineSpacing);
setParagraphSpacingAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"Set &Paragraph Spacing..."</span>)<span class="operator">,</span> <span class="keyword">this</span>);
setParagraphSpacingAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Change the gap between paragraphs"</span>));
connect(setParagraphSpacingAct<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>setParagraphSpacing);
aboutAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&About"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
aboutAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Show the application's About box"</span>));
connect(aboutAct<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>about);
aboutQtAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"About &Qt"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
aboutQtAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Show the Qt library's About box"</span>));
connect(aboutQtAct<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> <a href="qapplication.html#qApp">qApp</a><span class="operator">,</span> <span class="operator">&</span><span class="type"><a href="qapplication.html">QApplication</a></span><span class="operator">::</span>aboutQt);
connect(aboutQtAct<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>aboutQt);
leftAlignAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Left Align"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
leftAlignAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
leftAlignAct<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+L"</span>));
leftAlignAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Left align the selected text"</span>));
connect(leftAlignAct<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>leftAlign);
rightAlignAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Right Align"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
rightAlignAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
rightAlignAct<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+R"</span>));
rightAlignAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Right align the selected text"</span>));
connect(rightAlignAct<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>rightAlign);
justifyAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Justify"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
justifyAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
justifyAct<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+J"</span>));
justifyAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Justify the selected text"</span>));
connect(justifyAct<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>justify);
centerAct <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qaction.html">QAction</a></span>(tr(<span class="string">"&Center"</span>)<span class="operator">,</span> <span class="keyword">this</span>);
centerAct<span class="operator">-</span><span class="operator">></span>setCheckable(<span class="keyword">true</span>);
centerAct<span class="operator">-</span><span class="operator">></span>setShortcut(tr(<span class="string">"Ctrl+E"</span>));
centerAct<span class="operator">-</span><span class="operator">></span>setStatusTip(tr(<span class="string">"Center the selected text"</span>));
connect(centerAct<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>center);
alignmentGroup <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qactiongroup.html">QActionGroup</a></span>(<span class="keyword">this</span>);
alignmentGroup<span class="operator">-</span><span class="operator">></span>addAction(leftAlignAct);
alignmentGroup<span class="operator">-</span><span class="operator">></span>addAction(rightAlignAct);
alignmentGroup<span class="operator">-</span><span class="operator">></span>addAction(justifyAct);
alignmentGroup<span class="operator">-</span><span class="operator">></span>addAction(centerAct);
leftAlignAct<span class="operator">-</span><span class="operator">></span>setChecked(<span class="keyword">true</span>);
}
<span class="type">void</span> MainWindow<span class="operator">::</span>createMenus()
{
fileMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&File"</span>));
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(newAct);
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(openAct);
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(saveAct);
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(printAct);
fileMenu<span class="operator">-</span><span class="operator">></span>addSeparator();
fileMenu<span class="operator">-</span><span class="operator">></span>addAction(exitAct);
editMenu <span class="operator">=</span> menuBar()<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Edit"</span>));
editMenu<span class="operator">-</span><span class="operator">></span>addAction(undoAct);
editMenu<span class="operator">-</span><span class="operator">></span>addAction(redoAct);
editMenu<span class="operator">-</span><span class="operator">></span>addSeparator();
editMenu<span class="operator">-</span><span class="operator">></span>addAction(cutAct);
editMenu<span class="operator">-</span><span class="operator">></span>addAction(copyAct);
editMenu<span class="operator">-</span><span class="operator">></span>addAction(pasteAct);
editMenu<span class="operator">-</span><span class="operator">></span>addSeparator();
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(aboutAct);
helpMenu<span class="operator">-</span><span class="operator">></span>addAction(aboutQtAct);
formatMenu <span class="operator">=</span> editMenu<span class="operator">-</span><span class="operator">></span>addMenu(tr(<span class="string">"&Format"</span>));
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(boldAct);
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(italicAct);
formatMenu<span class="operator">-</span><span class="operator">></span>addSeparator()<span class="operator">-</span><span class="operator">></span>setText(tr(<span class="string">"Alignment"</span>));
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(leftAlignAct);
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(rightAlignAct);
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(justifyAct);
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(centerAct);
formatMenu<span class="operator">-</span><span class="operator">></span>addSeparator();
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(setLineSpacingAct);
formatMenu<span class="operator">-</span><span class="operator">></span>addAction(setParagraphSpacingAct);
}
</pre>
</div>
<!-- @@@mainwindows/menus/mainwindow.cpp -->
</div>
</div>
</div>
</div>
</div>
<div class="footer">
<p>
<acronym title="Copyright">©</acronym> 2019 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>
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</html>
distrib
>
Mageia
>
7
>
armv7hl
>
media
>
core-updates
>
by-pkgid
>
d5e62c01ae8d1e579463c6a871dd44bf
>
files
>
4688
