Sophie: qt4-doc-4:4.6.3-0.2mdv2010.2 i586

qt4-doc-4.6.3-0.2mdv2010.2.i586.rpm

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<pre><span class="comment"> /****************************************************************************
 **
 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the examples of the Qt Toolkit.
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 #include &quot;window.h&quot;
 #include &quot;environment.h&quot;
 #include &quot;context2d.h&quot;
 #include &quot;qcontext2dcanvas.h&quot;
 #include &lt;QHBoxLayout&gt;
 #include &lt;QListWidget&gt;
 #include &lt;QDir&gt;
 #include &lt;QMessageBox&gt;

 #ifndef QT_NO_SCRIPTTOOLS
 #include &lt;QAction&gt;
 #include &lt;QApplication&gt;
 #include &lt;QMainWindow&gt;
 #include &lt;QPushButton&gt;
 #include &lt;QVBoxLayout&gt;
 #include &lt;QScriptEngineDebugger&gt;
 #endif

 static QString scriptsDir()
 {
     if (QFile::exists(&quot;./scripts&quot;))
         return &quot;./scripts&quot;;
     return &quot;:/scripts&quot;;
 }

 Window::Window(QWidget *parent)
     : QWidget(parent)
 #ifndef QT_NO_SCRIPTTOOLS
       , m_debugger(0), m_debugWindow(0)
 #endif
 {
     m_env = new Environment(this);
     QObject::connect(m_env, SIGNAL(scriptError(QScriptValue)),
                      this, SLOT(reportScriptError(QScriptValue)));

     Context2D *context = new Context2D(this);
     context-&gt;setSize(150, 150);
     m_canvas = new QContext2DCanvas(context, m_env, this);
     m_canvas-&gt;setFixedSize(context-&gt;size());
     m_canvas-&gt;setObjectName(&quot;tutorial&quot;);
     m_env-&gt;addCanvas(m_canvas);

 #ifndef QT_NO_SCRIPTTOOLS
     QVBoxLayout *vbox = new QVBoxLayout();
     vbox-&gt;addWidget(m_canvas);
     m_debugButton = new QPushButton(tr(&quot;Run in Debugger&quot;));
     connect(m_debugButton, SIGNAL(clicked()), this, SLOT(runInDebugger()));
     vbox-&gt;addWidget(m_debugButton);
 #endif

     QHBoxLayout *hbox = new QHBoxLayout(this);
     m_view = new QListWidget(this);
     m_view-&gt;setEditTriggers(QAbstractItemView::NoEditTriggers);
     hbox-&gt;addWidget(m_view);
 #ifndef QT_NO_SCRIPTTOOLS
     hbox-&gt;addLayout(vbox);
 #else
     hbox-&gt;addWidget(m_canvas);
 #endif

     QDir dir(scriptsDir());
     QFileInfoList entries = dir.entryInfoList(QStringList() &lt;&lt; &quot;*.js&quot;);
     for (int i = 0; i &lt; entries.size(); ++i)
         m_view-&gt;addItem(entries.at(i).fileName());
     connect(m_view, SIGNAL(currentItemChanged(QListWidgetItem*,QListWidgetItem*)),
             this, SLOT(selectScript(QListWidgetItem*)));

     setWindowTitle(tr(&quot;Context 2D&quot;));
 }

 void Window::selectScript(QListWidgetItem *item)
 {
     QString fileName = item-&gt;text();
     runScript(fileName, <span class="comment">/*debug=*/</span>false);
 }

 void Window::reportScriptError(const QScriptValue &amp;error)
 {
     QMessageBox::warning(this, tr(&quot;Context 2D&quot;), tr(&quot;Line %0: %1&quot;)
                          .arg(error.property(&quot;lineNumber&quot;).toInt32())
                          .arg(error.toString()));
 }

 #ifndef QT_NO_SCRIPTTOOLS
 void Window::runInDebugger()
 {
     QListWidgetItem *item = m_view-&gt;currentItem();
     if (item) {
         QString fileName = item-&gt;text();
         runScript(fileName, <span class="comment">/*debug=*/</span>true);
     }
 }
 #endif

 void Window::runScript(const QString &amp;fileName, bool debug)
 {
     QFile file(scriptsDir() + &quot;/&quot; + fileName);
     file.open(QIODevice::ReadOnly);
     QString contents = file.readAll();
     file.close();
     m_env-&gt;reset();

 #ifndef QT_NO_SCRIPTTOOLS
     if (debug) {
         if (!m_debugger) {
             m_debugger = new QScriptEngineDebugger(this);
             m_debugWindow = m_debugger-&gt;standardWindow();
             m_debugWindow-&gt;setWindowModality(Qt::ApplicationModal);
             m_debugWindow-&gt;resize(1280, 704);
         }
         m_debugger-&gt;attachTo(m_env-&gt;engine());
         m_debugger-&gt;action(QScriptEngineDebugger::InterruptAction)-&gt;trigger();
     } else {
         if (m_debugger)
             m_debugger-&gt;detach();
     }
 #else
     Q_UNUSED(debug);
 #endif

     QScriptValue ret = m_env-&gt;evaluate(contents, fileName);

 #ifndef QT_NO_SCRIPTTOOLS
     if (m_debugWindow)
         m_debugWindow-&gt;hide();
 #endif

     if (ret.isError())
         reportScriptError(ret);
 }</pre>
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