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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Qt Software Information (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module 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 qt-sales@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSIMPLECANVAS_H
#define QSIMPLECANVAS_H
#include <qfxglobal.h>
#ifdef QFX_RENDER_OPENGL
#include <QtGui/qmatrix4x4.h>
#endif
#include <QtGui/QTransform>
#include <QtGui/QPainter>
#include <QtCore/QDebug>
#include <QtGui/QWidget>
#include <QtGui/QImage>
#include <QtGui/QKeyEvent>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Declarative)
namespace QSimpleCanvasConfig
{
enum ImageType { Opaque, Translucent };
#ifdef QFX_RENDER_OPENGL
typedef QMatrix4x4 Matrix;
typedef QImage Image;
inline Matrix transformToMatrix(const QTransform &)
{
return Matrix(); // XXX
}
inline QTransform matrixToTransform(const Matrix &)
{
return QTransform(); // XXX
}
inline bool needConvert(ImageType, const Image &)
{ return false; }
inline Image convert(ImageType, const Image &i)
{ return i; }
inline Image create(const QSize &s)
{ return QImage(s, QImage::Format_ARGB32); }
inline const Image &toImage(const QImage &i)
{ return i; }
#elif defined(QFX_RENDER_QPAINTER)
typedef QTransform Matrix;
typedef QImage Image;
inline Matrix transformToMatrix(const QTransform &t)
{ return t; }
inline QTransform matrixToTransform(const Matrix &t)
{ return t; }
inline bool needConvert(ImageType type, const Image &img) {
QImage::Format f = img.format();
return !((type == Opaque && f == QImage::Format_RGB16) ||
(type == Translucent && f == QImage::Format_ARGB32_Premultiplied));
}
inline Image convert(ImageType type, const Image &img) {
if (type == Opaque)
return img.convertToFormat(QImage::Format_RGB16);
else
return img.convertToFormat(QImage::Format_ARGB32_Premultiplied);
}
inline Image create(const QSize &s)
{ return QImage(s, QImage::Format_ARGB32_Premultiplied); }
inline const Image &toImage(const QImage &i)
{ return i; }
#endif
}
class QSimpleCanvas;
class QSimpleCanvasLayer;
class QGraphicsSceneMouseEvent;
class GLBasicShaders;
class QSimpleCanvasItem;
class QSimpleCanvasPrivate;
class Q_DECLARATIVE_EXPORT QSimpleCanvas : public QWidget
{
Q_OBJECT
public:
typedef QSimpleCanvasConfig::Matrix Matrix;
enum CanvasMode { GraphicsView, SimpleCanvas };
QSimpleCanvas(QWidget *parent = 0);
QSimpleCanvas(CanvasMode, QWidget *parent = 0);
virtual ~QSimpleCanvas();
CanvasMode canvasMode() const;
QSimpleCanvasItem *root();
// Debugging
void dumpTiming();
void dumpItems();
void checkState();
QSimpleCanvasItem *focusItem() const;
QSimpleCanvasItem *focusItem(QSimpleCanvasItem *item) const;
QSimpleCanvasItem *activeFocusPanel() const;
QImage asImage() const;
Q_SIGNALS:
void framePainted();
protected:
virtual bool event(QEvent *);
virtual void paintEvent(QPaintEvent *);
virtual void keyPressEvent(QKeyEvent *);
virtual void keyReleaseEvent(QKeyEvent *);
virtual void mousePressEvent(QMouseEvent *);
virtual void mouseDoubleClickEvent(QMouseEvent *);
virtual void mouseMoveEvent(QMouseEvent *);
virtual void mouseReleaseEvent(QMouseEvent *);
virtual void focusInEvent(QFocusEvent *event);
virtual void focusOutEvent(QFocusEvent *event);
virtual bool focusNextPrevChild(bool next);
virtual bool eventFilter(QObject *obj, QEvent *event);
virtual void inputMethodEvent(QInputMethodEvent *event);
virtual QVariant inputMethodQuery(Qt::InputMethodQuery query) const;
virtual void showEvent(QShowEvent *);
virtual void resizeEvent(QResizeEvent *);
private:
friend class QSimpleCanvasRootLayer;
friend class QSimpleCanvasPrivate;
friend class QSimpleCanvasItem;
friend class QSimpleCanvasItemPrivate;
friend class QSimpleCanvasFilter;
friend class QSimpleGraphicsItem;
void queueUpdate();
QSimpleCanvasPrivate *d;
void addDirty(QSimpleCanvasItem *);
void remDirty(QSimpleCanvasItem *);
};
QT_END_NAMESPACE
QT_END_HEADER
#endif
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