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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">dialog.cpp Example File</h1> <span class="small-subtitle">layouts/dynamiclayouts/dialog.cpp</span> <!-- $$$layouts/dynamiclayouts/dialog.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2015 The Qt Company Ltd. ** Contact: http://www.qt.io/licensing/ ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 <QtGui></span> <span class="preprocessor">#include "dialog.h"</span> Dialog<span class="operator">::</span>Dialog(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) <span class="preprocessor">#if defined(Q_OS_SYMBIAN) || defined(Q_WS_MAEMO_5) || defined(Q_WS_SIMULATOR)</span> : <span class="type"><a href="qwidget.html">QWidget</a></span>(parent) <span class="preprocessor">#else</span> : <span class="type"><a href="qdialog.html">QDialog</a></span>(parent) <span class="preprocessor">#endif</span> { createRotableGroupBox(); createOptionsGroupBox(); createButtonBox(); mainLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>; mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(rotableGroupBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(optionsGroupBox<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>); mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonBox<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>); setLayout(mainLayout); mainLayout<span class="operator">-</span><span class="operator">></span>setSizeConstraint(<span class="type"><a href="qlayout.html">QLayout</a></span><span class="operator">::</span>SetMinimumSize); setWindowTitle(tr(<span class="string">"Dynamic Layouts"</span>)); } <span class="type">void</span> Dialog<span class="operator">::</span>buttonsOrientationChanged(<span class="type">int</span> index) { mainLayout<span class="operator">-</span><span class="operator">></span>setSizeConstraint(<span class="type"><a href="qlayout.html">QLayout</a></span><span class="operator">::</span>SetNoConstraint); setMinimumSize(<span class="number">0</span><span class="operator">,</span> <span class="number">0</span>); <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Orientation orientation <span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Orientation( buttonsOrientationComboBox<span class="operator">-</span><span class="operator">></span>itemData(index)<span class="operator">.</span>toInt()); <span class="keyword">if</span> (orientation <span class="operator">=</span><span class="operator">=</span> buttonBox<span class="operator">-</span><span class="operator">></span>orientation()) <span class="keyword">return</span>; mainLayout<span class="operator">-</span><span class="operator">></span>removeWidget(buttonBox); <span class="type">int</span> spacing <span class="operator">=</span> mainLayout<span class="operator">-</span><span class="operator">></span>spacing(); <span class="type"><a href="qsize.html">QSize</a></span> oldSizeHint <span class="operator">=</span> buttonBox<span class="operator">-</span><span class="operator">></span>sizeHint() <span class="operator">+</span> <span class="type"><a href="qsize.html">QSize</a></span>(spacing<span class="operator">,</span> spacing); buttonBox<span class="operator">-</span><span class="operator">></span>setOrientation(orientation); <span class="type"><a href="qsize.html">QSize</a></span> newSizeHint <span class="operator">=</span> buttonBox<span class="operator">-</span><span class="operator">></span>sizeHint() <span class="operator">+</span> <span class="type"><a href="qsize.html">QSize</a></span>(spacing<span class="operator">,</span> spacing); <span class="keyword">if</span> (orientation <span class="operator">=</span><span class="operator">=</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Horizontal) { mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonBox<span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">0</span>); resize(size() <span class="operator">+</span> <span class="type"><a href="qsize.html">QSize</a></span>(<span class="operator">-</span>oldSizeHint<span class="operator">.</span>width()<span class="operator">,</span> newSizeHint<span class="operator">.</span>height())); } <span class="keyword">else</span> { mainLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">3</span><span class="operator">,</span> <span class="number">2</span><span class="operator">,</span> <span class="number">1</span>); resize(size() <span class="operator">+</span> <span class="type"><a href="qsize.html">QSize</a></span>(newSizeHint<span class="operator">.</span>width()<span class="operator">,</span> <span class="operator">-</span>oldSizeHint<span class="operator">.</span>height())); } mainLayout<span class="operator">-</span><span class="operator">></span>setSizeConstraint(<span class="type"><a href="qlayout.html">QLayout</a></span><span class="operator">::</span>SetDefaultConstraint); } <span class="type">void</span> Dialog<span class="operator">::</span>rotateWidgets() { Q_ASSERT(rotableWidgets<span class="operator">.</span>count() <span class="operator">%</span> <span class="number">2</span> <span class="operator">=</span><span class="operator">=</span> <span class="number">0</span>); foreach (<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget<span class="operator">,</span> rotableWidgets) rotableLayout<span class="operator">-</span><span class="operator">></span>removeWidget(widget); rotableWidgets<span class="operator">.</span>enqueue(rotableWidgets<span class="operator">.</span>dequeue()); <span class="keyword">const</span> <span class="type">int</span> n <span class="operator">=</span> rotableWidgets<span class="operator">.</span>count(); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> n <span class="operator">/</span> <span class="number">2</span>; <span class="operator">+</span><span class="operator">+</span>i) { rotableLayout<span class="operator">-</span><span class="operator">></span>addWidget(rotableWidgets<span class="operator">[</span>n <span class="operator">-</span> i <span class="operator">-</span> <span class="number">1</span><span class="operator">]</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> i); rotableLayout<span class="operator">-</span><span class="operator">></span>addWidget(rotableWidgets<span class="operator">[</span>i<span class="operator">]</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> i); } } <span class="type">void</span> Dialog<span class="operator">::</span>help() { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>information(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Dynamic Layouts Help"</span>)<span class="operator">,</span> tr(<span class="string">"This example shows how to change layouts "</span> <span class="string">"dynamically."</span>)); } <span class="type">void</span> Dialog<span class="operator">::</span>createRotableGroupBox() { rotableGroupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgroupbox.html">QGroupBox</a></span>(tr(<span class="string">"Rotable Widgets"</span>)); rotableWidgets<span class="operator">.</span>enqueue(<span class="keyword">new</span> <span class="type"><a href="qspinbox.html">QSpinBox</a></span>); rotableWidgets<span class="operator">.</span>enqueue(<span class="keyword">new</span> <span class="type"><a href="qslider.html">QSlider</a></span>); rotableWidgets<span class="operator">.</span>enqueue(<span class="keyword">new</span> <span class="type"><a href="qdial.html">QDial</a></span>); rotableWidgets<span class="operator">.</span>enqueue(<span class="keyword">new</span> <span class="type"><a href="qprogressbar.html">QProgressBar</a></span>); <span class="type">int</span> n <span class="operator">=</span> rotableWidgets<span class="operator">.</span>count(); <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> n; <span class="operator">+</span><span class="operator">+</span>i) { connect(rotableWidgets<span class="operator">[</span>i<span class="operator">]</span><span class="operator">,</span> SIGNAL(valueChanged(<span class="type">int</span>))<span class="operator">,</span> rotableWidgets<span class="operator">[</span>(i <span class="operator">+</span> <span class="number">1</span>) <span class="operator">%</span> n<span class="operator">]</span><span class="operator">,</span> SLOT(setValue(<span class="type">int</span>))); } rotableLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>; rotableGroupBox<span class="operator">-</span><span class="operator">></span>setLayout(rotableLayout); rotateWidgets(); } <span class="type">void</span> Dialog<span class="operator">::</span>createOptionsGroupBox() { optionsGroupBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgroupbox.html">QGroupBox</a></span>(tr(<span class="string">"Options"</span>)); buttonsOrientationLabel <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlabel.html">QLabel</a></span>(tr(<span class="string">"Orientation of buttons:"</span>)); buttonsOrientationComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>; buttonsOrientationComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Horizontal"</span>)<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Horizontal); buttonsOrientationComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Vertical"</span>)<span class="operator">,</span> <span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>Vertical); connect(buttonsOrientationComboBox<span class="operator">,</span> SIGNAL(currentIndexChanged(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(buttonsOrientationChanged(<span class="type">int</span>))); optionsLayout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qgridlayout.html">QGridLayout</a></span>; optionsLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonsOrientationLabel<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">0</span>); optionsLayout<span class="operator">-</span><span class="operator">></span>addWidget(buttonsOrientationComboBox<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">1</span>); optionsLayout<span class="operator">-</span><span class="operator">></span>setColumnStretch(<span class="number">2</span><span class="operator">,</span> <span class="number">1</span>); optionsGroupBox<span class="operator">-</span><span class="operator">></span>setLayout(optionsLayout); } <span class="type">void</span> Dialog<span class="operator">::</span>createButtonBox() { buttonBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span>; closeButton <span class="operator">=</span> buttonBox<span class="operator">-</span><span class="operator">></span>addButton(<span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>Close); helpButton <span class="operator">=</span> buttonBox<span class="operator">-</span><span class="operator">></span>addButton(<span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>Help); rotateWidgetsButton <span class="operator">=</span> buttonBox<span class="operator">-</span><span class="operator">></span>addButton(tr(<span class="string">"Rotate &Widgets"</span>)<span class="operator">,</span> <span class="type"><a href="qdialogbuttonbox.html">QDialogButtonBox</a></span><span class="operator">::</span>ActionRole); connect(rotateWidgetsButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(rotateWidgets())); connect(closeButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(close())); connect(helpButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(help())); }</pre> </div> <!-- @@@layouts/dynamiclayouts/dialog.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. 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