diff -r 000000000000 -r 1918ee327afb examples/script/context2d/qcontext2dcanvas.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/examples/script/context2d/qcontext2dcanvas.cpp Mon Jan 11 14:00:40 2010 +0000 @@ -0,0 +1,148 @@ +/**************************************************************************** +** +** Copyright (C) 2009 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 Technology Preview License Agreement accompanying +** this package. +** +** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qcontext2dcanvas.h" + +#include "context2d.h" +#include "environment.h" +#include "domimage.h" + +#include +#include + +//! [3] +QContext2DCanvas::QContext2DCanvas(Context2D *context, Environment *env, QWidget *parent) + : QWidget(parent), m_context(context), m_env(env) +{ + QObject::connect(context, SIGNAL(changed(QImage)), this, SLOT(contentsChanged(QImage))); + setMouseTracking(true); +} +//! [3] + +QContext2DCanvas::~QContext2DCanvas() +{ +} + +Context2D *QContext2DCanvas::context() const +{ + return m_context; +} + +//! [0] +QScriptValue QContext2DCanvas::getContext(const QString &str) +{ + if (str != "2d") + return QScriptValue(); + return m_env->toWrapper(m_context); +} +//! [0] + +//! [1] +void QContext2DCanvas::contentsChanged(const QImage &image) +{ + m_image = image; + update(); +} + +void QContext2DCanvas::paintEvent(QPaintEvent *e) +{ + QPainter p(this); +#ifdef Q_WS_S60 +// Draw white rect first since in with some themes the js-file content will produce black-on-black. + QBrush whiteBgBrush(Qt::white); + p.fillRect(e->rect(), whiteBgBrush); +#endif + p.setClipRect(e->rect()); + p.drawImage(0, 0, m_image); +} +//! [1] + +//! [2] +void QContext2DCanvas::mouseMoveEvent(QMouseEvent *e) +{ + m_env->handleEvent(this, e); +} + +void QContext2DCanvas::mousePressEvent(QMouseEvent *e) +{ + m_env->handleEvent(this, e); +} + +void QContext2DCanvas::mouseReleaseEvent(QMouseEvent *e) +{ + m_env->handleEvent(this, e); +} + +void QContext2DCanvas::keyPressEvent(QKeyEvent *e) +{ + m_env->handleEvent(this, e); +} + +void QContext2DCanvas::keyReleaseEvent(QKeyEvent *e) +{ + m_env->handleEvent(this, e); +} +//! [2] + +void QContext2DCanvas::resizeEvent(QResizeEvent *e) +{ + m_context->setSize(e->size().width(), e->size().height()); +} + +void QContext2DCanvas::resize(int width, int height) +{ + QWidget::resize(width, height); +} + +void QContext2DCanvas::reset() +{ + m_context->reset(); +} + +void QContext2DCanvas::addEventListener(const QString &type, const QScriptValue &listener, + bool useCapture) +{ + Q_UNUSED(useCapture); + if (listener.isFunction()) { + QScriptValue self = m_env->toWrapper(this); + self.setProperty("on" + type, listener); + } +}