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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">window.cpp Example File</h1> <span class="small-subtitle">script/context2d/window.cpp</span> <!-- $$$script/context2d/window.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** 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 Digia Plc and its Subsidiary(-ies) 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 "environment.h"</span> <span class="preprocessor">#include "context2d.h"</span> <span class="preprocessor">#include "qcontext2dcanvas.h"</span> <span class="preprocessor">#include <QHBoxLayout></span> <span class="preprocessor">#include <QListWidget></span> <span class="preprocessor">#include <QDir></span> <span class="preprocessor">#include <QMessageBox></span> <span class="preprocessor">#ifndef QT_NO_SCRIPTTOOLS</span> <span class="preprocessor">#include <QAction></span> <span class="preprocessor">#include <QApplication></span> <span class="preprocessor">#include <QMainWindow></span> <span class="preprocessor">#include <QPushButton></span> <span class="preprocessor">#include <QVBoxLayout></span> <span class="preprocessor">#include <QScriptEngineDebugger></span> <span class="preprocessor">#endif</span> <span class="keyword">static</span> <span class="type"><a href="qstring.html">QString</a></span> scriptsDir() { <span class="keyword">if</span> (<span class="type"><a href="qfile.html">QFile</a></span><span class="operator">::</span>exists(<span class="string">"./scripts"</span>)) <span class="keyword">return</span> <span class="string">"./scripts"</span>; <span class="keyword">return</span> <span class="string">":/scripts"</span>; } Window<span class="operator">::</span>Window(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="qwidget.html">QWidget</a></span>(parent) <span class="preprocessor">#ifndef QT_NO_SCRIPTTOOLS</span> <span class="operator">,</span> m_debugger(<span class="number">0</span>)<span class="operator">,</span> m_debugWindow(<span class="number">0</span>) <span class="preprocessor">#endif</span> { m_env <span class="operator">=</span> <span class="keyword">new</span> Environment(<span class="keyword">this</span>); <span class="type"><a href="qobject.html">QObject</a></span><span class="operator">::</span>connect(m_env<span class="operator">,</span> SIGNAL(scriptError(<span class="type"><a href="qscriptvalue.html">QScriptValue</a></span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(reportScriptError(<span class="type"><a href="qscriptvalue.html">QScriptValue</a></span>))); Context2D <span class="operator">*</span>context <span class="operator">=</span> <span class="keyword">new</span> Context2D(<span class="keyword">this</span>); context<span class="operator">-</span><span class="operator">></span>setSize(<span class="number">150</span><span class="operator">,</span> <span class="number">150</span>); m_canvas <span class="operator">=</span> <span class="keyword">new</span> QContext2DCanvas(context<span class="operator">,</span> m_env<span class="operator">,</span> <span class="keyword">this</span>); m_canvas<span class="operator">-</span><span class="operator">></span>setFixedSize(context<span class="operator">-</span><span class="operator">></span>size()); m_canvas<span class="operator">-</span><span class="operator">></span>setObjectName(<span class="string">"tutorial"</span>); m_env<span class="operator">-</span><span class="operator">></span>addCanvas(m_canvas); <span class="preprocessor">#ifndef QT_NO_SCRIPTTOOLS</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(m_canvas); m_debugButton <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(tr(<span class="string">"Run in Debugger"</span>)); connect(m_debugButton<span class="operator">,</span> SIGNAL(clicked())<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(runInDebugger())); vbox<span class="operator">-</span><span class="operator">></span>addWidget(m_debugButton); <span class="preprocessor">#endif</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span> <span class="operator">*</span>hbox <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qhboxlayout.html">QHBoxLayout</a></span>(<span class="keyword">this</span>); m_view <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qlistwidget.html">QListWidget</a></span>(<span class="keyword">this</span>); m_view<span class="operator">-</span><span class="operator">></span>setEditTriggers(<span class="type"><a href="qabstractitemview.html">QAbstractItemView</a></span><span class="operator">::</span>NoEditTriggers); hbox<span class="operator">-</span><span class="operator">></span>addWidget(m_view); <span class="preprocessor">#ifndef QT_NO_SCRIPTTOOLS</span> hbox<span class="operator">-</span><span class="operator">></span>addLayout(vbox); <span class="preprocessor">#else</span> hbox<span class="operator">-</span><span class="operator">></span>addWidget(m_canvas); <span class="preprocessor">#endif</span> <span class="type"><a href="qdir.html">QDir</a></span> dir(scriptsDir()); <span class="type"><a href="qfileinfo.html#QFileInfoList-typedef">QFileInfoList</a></span> entries <span class="operator">=</span> dir<span class="operator">.</span>entryInfoList(<span class="type"><a href="qstringlist.html">QStringList</a></span>() <span class="operator"><</span><span class="operator"><</span> <span class="string">"*.js"</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> entries<span class="operator">.</span>size(); <span class="operator">+</span><span class="operator">+</span>i) m_view<span class="operator">-</span><span class="operator">></span>addItem(entries<span class="operator">.</span>at(i)<span class="operator">.</span>fileName()); connect(m_view<span class="operator">,</span> SIGNAL(currentItemChanged(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span><span class="operator">*</span><span class="operator">,</span><span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span><span class="operator">*</span>))<span class="operator">,</span> <span class="keyword">this</span><span class="operator">,</span> SLOT(selectScript(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span><span class="operator">*</span>))); setWindowTitle(tr(<span class="string">"Context 2D"</span>)); } <span class="type">void</span> Window<span class="operator">::</span>selectScript(<span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span> <span class="operator">*</span>item) { <span class="type"><a href="qstring.html">QString</a></span> fileName <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text(); runScript(fileName<span class="operator">,</span> <span class="comment">/*debug=*/</span><span class="keyword">false</span>); } <span class="type">void</span> Window<span class="operator">::</span>reportScriptError(<span class="keyword">const</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> <span class="operator">&</span>error) { <span class="type"><a href="qmessagebox.html">QMessageBox</a></span><span class="operator">::</span>warning(<span class="keyword">this</span><span class="operator">,</span> tr(<span class="string">"Context 2D"</span>)<span class="operator">,</span> tr(<span class="string">"Line %0: %1"</span>) <span class="operator">.</span>arg(error<span class="operator">.</span>property(<span class="string">"lineNumber"</span>)<span class="operator">.</span>toInt32()) <span class="operator">.</span>arg(error<span class="operator">.</span>toString())); } <span class="preprocessor">#ifndef QT_NO_SCRIPTTOOLS</span> <span class="type">void</span> Window<span class="operator">::</span>runInDebugger() { <span class="type"><a href="qlistwidgetitem.html">QListWidgetItem</a></span> <span class="operator">*</span>item <span class="operator">=</span> m_view<span class="operator">-</span><span class="operator">></span>currentItem(); <span class="keyword">if</span> (item) { <span class="type"><a href="qstring.html">QString</a></span> fileName <span class="operator">=</span> item<span class="operator">-</span><span class="operator">></span>text(); runScript(fileName<span class="operator">,</span> <span class="comment">/*debug=*/</span><span class="keyword">true</span>); } } <span class="preprocessor">#endif</span> <span class="type">void</span> Window<span class="operator">::</span>runScript(<span class="keyword">const</span> <span class="type"><a href="qstring.html">QString</a></span> <span class="operator">&</span>fileName<span class="operator">,</span> <span class="type">bool</span> debug) { <span class="type"><a href="qfile.html">QFile</a></span> file(scriptsDir() <span class="operator">+</span> <span class="string">"/"</span> <span class="operator">+</span> fileName); file<span class="operator">.</span>open(<span class="type"><a href="qiodevice.html">QIODevice</a></span><span class="operator">::</span>ReadOnly); <span class="type"><a href="qstring.html">QString</a></span> contents <span class="operator">=</span> file<span class="operator">.</span>readAll(); file<span class="operator">.</span>close(); m_env<span class="operator">-</span><span class="operator">></span>reset(); <span class="preprocessor">#ifndef QT_NO_SCRIPTTOOLS</span> <span class="keyword">if</span> (debug) { <span class="keyword">if</span> (<span class="operator">!</span>m_debugger) { m_debugger <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qscriptenginedebugger.html">QScriptEngineDebugger</a></span>(<span class="keyword">this</span>); m_debugWindow <span class="operator">=</span> m_debugger<span class="operator">-</span><span class="operator">></span>standardWindow(); m_debugWindow<span class="operator">-</span><span class="operator">></span>setWindowModality(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>ApplicationModal); m_debugWindow<span class="operator">-</span><span class="operator">></span>resize(<span class="number">1280</span><span class="operator">,</span> <span class="number">704</span>); } m_debugger<span class="operator">-</span><span class="operator">></span>attachTo(m_env<span class="operator">-</span><span class="operator">></span>engine()); m_debugger<span class="operator">-</span><span class="operator">></span>action(<span class="type"><a href="qscriptenginedebugger.html">QScriptEngineDebugger</a></span><span class="operator">::</span>InterruptAction)<span class="operator">-</span><span class="operator">></span>trigger(); } <span class="keyword">else</span> { <span class="keyword">if</span> (m_debugger) m_debugger<span class="operator">-</span><span class="operator">></span>detach(); } <span class="preprocessor">#else</span> Q_UNUSED(debug); <span class="preprocessor">#endif</span> <span class="type"><a href="qscriptvalue.html">QScriptValue</a></span> ret <span class="operator">=</span> m_env<span class="operator">-</span><span class="operator">></span>evaluate(contents<span class="operator">,</span> fileName); <span class="preprocessor">#ifndef QT_NO_SCRIPTTOOLS</span> <span class="keyword">if</span> (m_debugWindow) m_debugWindow<span class="operator">-</span><span class="operator">></span>hide(); <span class="preprocessor">#endif</span> <span class="keyword">if</span> (ret<span class="operator">.</span>isError()) reportScriptError(ret); }</pre> </div> <!-- @@@script/context2d/window.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. Documentation contributions included herein are the copyrights of their respective owners.</p> <br /> <p> 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.</p> <p> Documentation sources may be obtained from <a href="http://www.qt-project.org"> www.qt-project.org</a>.</p> <br /> <p> Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. <a title="Privacy Policy" href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p> </div> <script src="scripts/functions.js" type="text/javascript"></script> </body> </html>