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/****************************************************************************
**
** 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.
**
** $QT_BEGIN_LICENSE:BSD$
** 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 Nokia Corporation 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."
** $QT_END_LICENSE$
**
****************************************************************************/
#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)
#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->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]
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) {
if (!m_debugger) {
m_debugger = new QScriptEngineDebugger(this);
m_debugWindow = m_debugger->standardWindow();
m_debugWindow->setWindowModality(Qt::ApplicationModal);
m_debugWindow->resize(1280, 704);
}
m_debugger->attachTo(m_env->engine());
m_debugger->action(QScriptEngineDebugger::InterruptAction)->trigger();
} else {
if (m_debugger)
m_debugger->detach();
}
#else
Q_UNUSED(debug);
#endif
QScriptValue ret = m_env->evaluate(contents, fileName);
#ifndef QT_NO_SCRIPTTOOLS
if (m_debugWindow)
m_debugWindow->hide();
#endif
if (ret.isError())
reportScriptError(ret);
}
//! [4]
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