<?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>window.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-painting-transformations-example.html">Transformations Example</a></td><td >window.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">window.cpp Example File</h1> <span class="subtitle">painting/transformations/window.cpp</span> <!-- $$$painting/transformations/window.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 "window.h"</span> <span class="preprocessor">#include <QComboBox></span> <span class="preprocessor">#include <QGridLayout></span> Window<span class="operator">::</span>Window() { originalRenderArea <span class="operator">=</span> <span class="keyword">new</span> RenderArea; shapeComboBox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>; shapeComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Clock"</span>)); shapeComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"House"</span>)); shapeComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Text"</span>)); shapeComboBox<span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Truck"</span>)); <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>; layout<span class="operator">-</span><span class="operator">></span>addWidget(originalRenderArea<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(shapeComboBox<span class="operator">,</span> <span class="number">1</span><span class="operator">,</span> <span class="number">0</span>); <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> NumTransformedAreas; <span class="operator">+</span><span class="operator">+</span>i) { transformedRenderAreas<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <span class="keyword">new</span> RenderArea; operationComboBoxes<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qcombobox.html">QComboBox</a></span>; operationComboBoxes<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"No transformation"</span>)); operationComboBoxes<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Rotate by 60\xC2\xB0"</span>)); operationComboBoxes<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Scale to 75%"</span>)); operationComboBoxes<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>addItem(tr(<span class="string">"Translate by (50, 50)"</span>)); connect(operationComboBoxes<span class="operator">[</span>i<span class="operator">]</span><span class="operator">,</span> SIGNAL(activated(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(operationChanged())); layout<span class="operator">-</span><span class="operator">></span>addWidget(transformedRenderAreas<span class="operator">[</span>i<span class="operator">]</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> i <span class="operator">+</span> <span class="number">1</span>); layout<span class="operator">-</span><span class="operator">></span>addWidget(operationComboBoxes<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="operator">+</span> <span class="number">1</span>); } setLayout(layout); setupShapes(); shapeSelected(<span class="number">0</span>); setWindowTitle(tr(<span class="string">"Transformations"</span>)); } <span class="type">void</span> Window<span class="operator">::</span>setupShapes() { <span class="type"><a href="../qtgui/qpainterpath.html">QPainterPath</a></span> truck; truck<span class="operator">.</span>setFillRule(<span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>WindingFill); truck<span class="operator">.</span>moveTo(<span class="number">0.0</span><span class="operator">,</span> <span class="number">87.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">0.0</span><span class="operator">,</span> <span class="number">60.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">10.0</span><span class="operator">,</span> <span class="number">60.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">35.0</span><span class="operator">,</span> <span class="number">35.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">100.0</span><span class="operator">,</span> <span class="number">35.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">100.0</span><span class="operator">,</span> <span class="number">87.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">0.0</span><span class="operator">,</span> <span class="number">87.0</span>); truck<span class="operator">.</span>moveTo(<span class="number">17.0</span><span class="operator">,</span> <span class="number">60.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">55.0</span><span class="operator">,</span> <span class="number">60.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">55.0</span><span class="operator">,</span> <span class="number">40.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">37.0</span><span class="operator">,</span> <span class="number">40.0</span>); truck<span class="operator">.</span>lineTo(<span class="number">17.0</span><span class="operator">,</span> <span class="number">60.0</span>); truck<span class="operator">.</span>addEllipse(<span class="number">17.0</span><span class="operator">,</span> <span class="number">75.0</span><span class="operator">,</span> <span class="number">25.0</span><span class="operator">,</span> <span class="number">25.0</span>); truck<span class="operator">.</span>addEllipse(<span class="number">63.0</span><span class="operator">,</span> <span class="number">75.0</span><span class="operator">,</span> <span class="number">25.0</span><span class="operator">,</span> <span class="number">25.0</span>); <span class="type"><a href="../qtgui/qpainterpath.html">QPainterPath</a></span> clock; clock<span class="operator">.</span>addEllipse(<span class="operator">-</span><span class="number">50.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">50.0</span><span class="operator">,</span> <span class="number">100.0</span><span class="operator">,</span> <span class="number">100.0</span>); clock<span class="operator">.</span>addEllipse(<span class="operator">-</span><span class="number">48.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">48.0</span><span class="operator">,</span> <span class="number">96.0</span><span class="operator">,</span> <span class="number">96.0</span>); clock<span class="operator">.</span>moveTo(<span class="number">0.0</span><span class="operator">,</span> <span class="number">0.0</span>); clock<span class="operator">.</span>lineTo(<span class="operator">-</span><span class="number">2.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">2.0</span>); clock<span class="operator">.</span>lineTo(<span class="number">0.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">42.0</span>); clock<span class="operator">.</span>lineTo(<span class="number">2.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">2.0</span>); clock<span class="operator">.</span>lineTo(<span class="number">0.0</span><span class="operator">,</span> <span class="number">0.0</span>); clock<span class="operator">.</span>moveTo(<span class="number">0.0</span><span class="operator">,</span> <span class="number">0.0</span>); clock<span class="operator">.</span>lineTo(<span class="number">2.732</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.732</span>); clock<span class="operator">.</span>lineTo(<span class="number">24.495</span><span class="operator">,</span> <span class="number">14.142</span>); clock<span class="operator">.</span>lineTo(<span class="number">0.732</span><span class="operator">,</span> <span class="number">2.732</span>); clock<span class="operator">.</span>lineTo(<span class="number">0.0</span><span class="operator">,</span> <span class="number">0.0</span>); <span class="type"><a href="../qtgui/qpainterpath.html">QPainterPath</a></span> house; house<span class="operator">.</span>moveTo(<span class="operator">-</span><span class="number">45.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span>); house<span class="operator">.</span>lineTo(<span class="number">0.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">45.0</span>); house<span class="operator">.</span>lineTo(<span class="number">45.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span>); house<span class="operator">.</span>lineTo(<span class="number">45.0</span><span class="operator">,</span> <span class="number">45.0</span>); house<span class="operator">.</span>lineTo(<span class="operator">-</span><span class="number">45.0</span><span class="operator">,</span> <span class="number">45.0</span>); house<span class="operator">.</span>lineTo(<span class="operator">-</span><span class="number">45.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">20.0</span>); house<span class="operator">.</span>addRect(<span class="number">15.0</span><span class="operator">,</span> <span class="number">5.0</span><span class="operator">,</span> <span class="number">20.0</span><span class="operator">,</span> <span class="number">35.0</span>); house<span class="operator">.</span>addRect(<span class="operator">-</span><span class="number">35.0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">15.0</span><span class="operator">,</span> <span class="number">25.0</span><span class="operator">,</span> <span class="number">25.0</span>); <span class="type"><a href="../qtgui/qpainterpath.html">QPainterPath</a></span> text; <span class="type"><a href="../qtgui/qfont.html">QFont</a></span> font; font<span class="operator">.</span>setPixelSize(<span class="number">50</span>); <span class="type"><a href="../qtcore/qrect.html">QRect</a></span> fontBoundingRect <span class="operator">=</span> <span class="type"><a href="../qtgui/qfontmetrics.html">QFontMetrics</a></span>(font)<span class="operator">.</span>boundingRect(tr(<span class="string">"Qt"</span>)); text<span class="operator">.</span>addText(<span class="operator">-</span><span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span>(fontBoundingRect<span class="operator">.</span>center())<span class="operator">,</span> font<span class="operator">,</span> tr(<span class="string">"Qt"</span>)); shapes<span class="operator">.</span>append(clock); shapes<span class="operator">.</span>append(house); shapes<span class="operator">.</span>append(text); shapes<span class="operator">.</span>append(truck); connect(shapeComboBox<span class="operator">,</span> SIGNAL(activated(<span class="type">int</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(shapeSelected(<span class="type">int</span>))); } <span class="type">void</span> Window<span class="operator">::</span>operationChanged() { <span class="keyword">static</span> <span class="keyword">const</span> Operation operationTable<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { NoTransformation<span class="operator">,</span> Rotate<span class="operator">,</span> Scale<span class="operator">,</span> Translate }; <span class="type"><a href="../qtcore/qlist.html">QList</a></span><span class="operator"><</span>Operation<span class="operator">></span> operations; <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> NumTransformedAreas; <span class="operator">+</span><span class="operator">+</span>i) { <span class="type">int</span> index <span class="operator">=</span> operationComboBoxes<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>currentIndex(); operations<span class="operator">.</span>append(operationTable<span class="operator">[</span>index<span class="operator">]</span>); transformedRenderAreas<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setOperations(operations); } } <span class="type">void</span> Window<span class="operator">::</span>shapeSelected(<span class="type">int</span> index) { <span class="type"><a href="../qtgui/qpainterpath.html">QPainterPath</a></span> shape <span class="operator">=</span> shapes<span class="operator">[</span>index<span class="operator">]</span>; originalRenderArea<span class="operator">-</span><span class="operator">></span>setShape(shape); <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> NumTransformedAreas; <span class="operator">+</span><span class="operator">+</span>i) transformedRenderAreas<span class="operator">[</span>i<span class="operator">]</span><span class="operator">-</span><span class="operator">></span>setShape(shape); } </pre> </div> <!-- @@@painting/transformations/window.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>