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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** 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.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPIXMAPFILTER_H
#define QPIXMAPFILTER_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/qnamespace.h>
#include <QtGui/qpixmap.h>
#include <QtWidgets/qgraphicseffect.h>
#ifndef QT_NO_GRAPHICSEFFECT
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class QPainter;
class QPlatformPixmap;
class QPixmapFilterPrivate;
class Q_WIDGETS_EXPORT QPixmapFilter : public QObject
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPixmapFilter)
public:
virtual ~QPixmapFilter() = 0;
enum FilterType {
ConvolutionFilter,
ColorizeFilter,
DropShadowFilter,
BlurFilter,
UserFilter = 1024
};
FilterType type() const;
virtual QRectF boundingRectFor(const QRectF &rect) const;
virtual void draw(QPainter *painter, const QPointF &p, const QPixmap &src, const QRectF &srcRect = QRectF()) const = 0;
protected:
QPixmapFilter(QPixmapFilterPrivate &d, FilterType type, QObject *parent);
QPixmapFilter(FilterType type, QObject *parent);
};
class QPixmapConvolutionFilterPrivate;
class Q_WIDGETS_EXPORT QPixmapConvolutionFilter : public QPixmapFilter
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPixmapConvolutionFilter)
public:
QPixmapConvolutionFilter(QObject *parent = 0);
~QPixmapConvolutionFilter();
void setConvolutionKernel(const qreal *matrix, int rows, int columns);
QRectF boundingRectFor(const QRectF &rect) const;
void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const;
private:
friend class QGLPixmapConvolutionFilter;
friend class QVGPixmapConvolutionFilter;
const qreal *convolutionKernel() const;
int rows() const;
int columns() const;
};
class QPixmapBlurFilterPrivate;
class Q_WIDGETS_EXPORT QPixmapBlurFilter : public QPixmapFilter
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPixmapBlurFilter)
public:
QPixmapBlurFilter(QObject *parent = 0);
~QPixmapBlurFilter();
void setRadius(qreal radius);
void setBlurHints(QGraphicsBlurEffect::BlurHints hints);
qreal radius() const;
QGraphicsBlurEffect::BlurHints blurHints() const;
QRectF boundingRectFor(const QRectF &rect) const;
void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const;
private:
friend class QGLPixmapBlurFilter;
};
class QPixmapColorizeFilterPrivate;
class Q_WIDGETS_EXPORT QPixmapColorizeFilter : public QPixmapFilter
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPixmapColorizeFilter)
public:
QPixmapColorizeFilter(QObject *parent = 0);
void setColor(const QColor& color);
QColor color() const;
void setStrength(qreal strength);
qreal strength() const;
void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const;
};
class QPixmapDropShadowFilterPrivate;
class Q_WIDGETS_EXPORT QPixmapDropShadowFilter : public QPixmapFilter
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPixmapDropShadowFilter)
public:
QPixmapDropShadowFilter(QObject *parent = 0);
~QPixmapDropShadowFilter();
QRectF boundingRectFor(const QRectF &rect) const;
void draw(QPainter *p, const QPointF &pos, const QPixmap &px, const QRectF &src = QRectF()) const;
qreal blurRadius() const;
void setBlurRadius(qreal radius);
QColor color() const;
void setColor(const QColor &color);
QPointF offset() const;
void setOffset(const QPointF &offset);
inline void setOffset(qreal dx, qreal dy) { setOffset(QPointF(dx, dy)); }
};
QT_END_NAMESPACE
QT_END_HEADER
#endif //QT_NO_GRAPHICSEFFECT
#endif // QPIXMAPFILTER_H
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