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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include "window.h"
#include "environment.h"
#include "context2d.h"
#include "qcontext2dcanvas.h"
#include <QHBoxLayout>
#include <QListWidget>
#include <QDir>
#include <QMessageBox>
#ifndef QT_NO_SCRIPTTOOLS
#include <QAction>
#include <QApplication>
#include <QMainWindow>
#include <QPushButton>
#include <QVBoxLayout>
#include <QScriptEngineDebugger>
#endif
static QString scriptsDir()
{
if (QFile::exists("./scripts"))
return "./scripts";
return ":/scripts";
}
//! [0]
Window::Window(QWidget *parent)
: QWidget(parent)
{
m_env = new Environment(this);
QObject::connect(m_env, SIGNAL(scriptError(QScriptValue)),
this, SLOT(reportScriptError(QScriptValue)));
Context2D *context = new Context2D(this);
context->setSize(150, 150);
m_canvas = new QContext2DCanvas(context, m_env, this);
m_canvas->setFixedSize(context->size());
m_canvas->setObjectName("tutorial");
m_env->addCanvas(m_canvas);
//! [0]
#ifndef QT_NO_SCRIPTTOOLS
QVBoxLayout *vbox = new QVBoxLayout();
vbox->addWidget(m_canvas);
m_debugButton = new QPushButton(tr("Run in Debugger"));
connect(m_debugButton, SIGNAL(clicked()), this, SLOT(runInDebugger()));
vbox->addWidget(m_debugButton);
#endif
QHBoxLayout *hbox = new QHBoxLayout(this);
m_view = new QListWidget(this);
m_view->setEditTriggers(QAbstractItemView::NoEditTriggers);
hbox->addWidget(m_view);
#ifndef QT_NO_SCRIPTTOOLS
hbox->addLayout(vbox);
#else
hbox->addWidget(m_canvas);
#endif
//! [1]
QDir dir(scriptsDir());
QFileInfoList entries = dir.entryInfoList(QStringList() << "*.js");
for (int i = 0; i < entries.size(); ++i)
m_view->addItem(entries.at(i).fileName());
connect(m_view, SIGNAL(currentItemChanged(QListWidgetItem*, QListWidgetItem*)),
this, SLOT(selectScript(QListWidgetItem*)));
//! [1]
#ifndef QT_NO_SCRIPTTOOLS
m_debugger = new QScriptEngineDebugger(this);
m_debugger->attachTo(m_env->engine());
m_debugWindow = m_debugger->standardWindow();
m_debugWindow->setWindowModality(Qt::ApplicationModal);
m_debugWindow->resize(1280, 704);
#endif
setWindowTitle(tr("Context 2D"));
}
//! [2]
void Window::selectScript(QListWidgetItem *item)
{
QString fileName = item->text();
runScript(fileName, /*debug=*/false);
}
//! [2]
void Window::reportScriptError(const QScriptValue &error)
{
QMessageBox::warning(this, tr("Context 2D"), tr("Line %0: %1")
.arg(error.property("lineNumber").toInt32())
.arg(error.toString()));
}
#ifndef QT_NO_SCRIPTTOOLS
//! [3]
void Window::runInDebugger()
{
QListWidgetItem *item = m_view->currentItem();
if (item) {
QString fileName = item->text();
runScript(fileName, /*debug=*/true);
}
}
//! [3]
#endif
//! [4]
void Window::runScript(const QString &fileName, bool debug)
{
QFile file(scriptsDir() + "/" + fileName);
file.open(QIODevice::ReadOnly);
QString contents = file.readAll();
file.close();
m_env->reset();
#ifndef QT_NO_SCRIPTTOOLS
if (debug)
m_debugger->action(QScriptEngineDebugger::InterruptAction)->trigger();
#else
Q_UNUSED(debug);
#endif
QScriptValue ret = m_env->evaluate(contents, fileName);
#ifndef QT_NO_SCRIPTTOOLS
m_debugWindow->hide();
#endif
if (ret.isError())
reportScriptError(ret);
}
//! [4]
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