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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** 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 The Qt Company Ltd 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."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QCONTEXT2DCANVAS_H
#define QCONTEXT2DCANVAS_H
#include <qscriptengine.h>
#include <qscriptcontext.h>
#include <qscriptvalue.h>
#include <QWidget>
QT_BEGIN_NAMESPACE
class QPaintEvent;
class QResizeEvent;
class QMouseEvent;
class QKeyEvent;
QT_END_NAMESPACE
class Environment;
class Context2D;
//! [0]
class QContext2DCanvas : public QWidget
{
Q_OBJECT
public:
QContext2DCanvas(Context2D *context, Environment *env, QWidget *parent = 0);
~QContext2DCanvas();
Context2D *context() const;
void reset();
public slots:
QScriptValue getContext(const QString &str);
void resize(int width, int height);
// EventTarget
void addEventListener(const QString &type, const QScriptValue &listener,
bool useCapture);
protected:
virtual void paintEvent(QPaintEvent *e);
virtual void mouseMoveEvent(QMouseEvent *e);
virtual void mousePressEvent(QMouseEvent *e);
virtual void mouseReleaseEvent(QMouseEvent *e);
virtual void keyPressEvent(QKeyEvent *e);
virtual void keyReleaseEvent(QKeyEvent *e);
virtual void resizeEvent(QResizeEvent *e);
private slots:
void contentsChanged(const QImage &image);
//! [0]
private:
Context2D *m_context;
Environment *m_env;
QImage m_image;
};
#endif
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