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window.cpp Example File
script/context2d/window.cpp

 /****************************************************************************
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 ** Copyright (C) 1992-2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
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 ** This file is part of the documentation of the Qt Toolkit.
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 ** contact [email protected] if any conditions of this licensing
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 ** http://trolltech.com/products/appdev/licensing.
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 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 #include "window.h"
 #include "qcontext2dcanvas.h"
 #include <QHBoxLayout>
 #include <QListWidget>
 #include <QDir>

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

 Window::Window(QWidget *parent)
     : QWidget(parent)
 {
     QHBoxLayout *hbox = new QHBoxLayout(this);
     QListWidget *view = new QListWidget(this);
     view->setEditTriggers(QAbstractItemView::NoEditTriggers);
     canvas = new QContext2DCanvas(this);
     canvas->setFixedSize(150, 150);
     hbox->addWidget(view);
     hbox->addWidget(canvas);

     QDir dir(scriptsDir());
     QFileInfoList entries = dir.entryInfoList(QStringList() << "*.js");
     for (int i = 0; i < entries.size(); ++i)
         view->addItem(entries.at(i).fileName());
     connect(view, SIGNAL(currentItemChanged(QListWidgetItem*, QListWidgetItem*)),
             this, SLOT(selectScript(QListWidgetItem*)));

     setWindowTitle(tr("Context 2D"));
 }

 void Window::selectScript(QListWidgetItem *item)
 {
     QFile file(scriptsDir() + "/" + item->text());
     file.open(QIODevice::ReadOnly);
     QString contents = file.readAll();
     file.close();
     canvas->setScriptContents(contents);
 }


Copyright © 2008 Nokia Corporation and/or its subsidiary(-ies) Trademarks
Qt 4.4.3