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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 QtGui 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 QPAINTENGINEEX_P_H
#define QPAINTENGINEEX_P_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 <QtGui/qpaintengine.h>
#include "qpaintengine_p.h"
#include "qstroker_p.h"
#include "qpainter_p.h"
#include "qvectorpath_p.h"
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class QPainterState;
class QPaintEngineExPrivate;
struct StrokeHandler;
struct QIntRect {
int x1, y1, x2, y2;
inline void set(const QRect &r) {
x1 = r.x();
y1 = r.y();
x2 = r.right() + 1;
y2 = r.bottom() + 1;
// We will assume normalized for later...
Q_ASSERT(x2 >= x1);
Q_ASSERT(y2 >= y1);
}
};
class QRectVectorPath : public QVectorPath {
public:
inline void set(const QRect &r) {
qreal left = r.x();
qreal right = r.x() + r.width();
qreal top = r.y();
qreal bottom = r.y() + r.height();
pts[0] = left;
pts[1] = top;
pts[2] = right;
pts[3] = top;
pts[4] = right;
pts[5] = bottom;
pts[6] = left;
pts[7] = bottom;
}
inline void set(const QRectF &r) {
qreal left = r.x();
qreal right = r.x() + r.width();
qreal top = r.y();
qreal bottom = r.y() + r.height();
pts[0] = left;
pts[1] = top;
pts[2] = right;
pts[3] = top;
pts[4] = right;
pts[5] = bottom;
pts[6] = left;
pts[7] = bottom;
}
inline QRectVectorPath(const QRect &r)
: QVectorPath(pts, 4, 0, QVectorPath::RectangleHint | QVectorPath::ImplicitClose)
{
set(r);
}
inline QRectVectorPath(const QRectF &r)
: QVectorPath(pts, 4, 0, QVectorPath::RectangleHint | QVectorPath::ImplicitClose)
{
set(r);
}
inline QRectVectorPath()
: QVectorPath(pts, 4, 0, QVectorPath::RectangleHint | QVectorPath::ImplicitClose)
{ }
qreal pts[8];
};
#ifndef QT_NO_DEBUG_STREAM
QDebug Q_GUI_EXPORT &operator<<(QDebug &, const QVectorPath &path);
#endif
class QPixmapFilter;
class Q_GUI_EXPORT QPaintEngineEx : public QPaintEngine
{
Q_DECLARE_PRIVATE(QPaintEngineEx)
public:
QPaintEngineEx();
virtual QPainterState *createState(QPainterState *orig) const;
virtual void draw(const QVectorPath &path);
virtual void fill(const QVectorPath &path, const QBrush &brush) = 0;
virtual void stroke(const QVectorPath &path, const QPen &pen);
virtual void clip(const QVectorPath &path, Qt::ClipOperation op) = 0;
virtual void clip(const QRect &rect, Qt::ClipOperation op);
virtual void clip(const QRegion ®ion, Qt::ClipOperation op);
virtual void clip(const QPainterPath &path, Qt::ClipOperation op);
virtual void clipEnabledChanged() = 0;
virtual void penChanged() = 0;
virtual void brushChanged() = 0;
virtual void brushOriginChanged() = 0;
virtual void opacityChanged() = 0;
virtual void compositionModeChanged() = 0;
virtual void renderHintsChanged() = 0;
virtual void transformChanged() = 0;
virtual void fillRect(const QRectF &rect, const QBrush &brush);
virtual void fillRect(const QRectF &rect, const QColor &color);
virtual void drawRects(const QRect *rects, int rectCount);
virtual void drawRects(const QRectF *rects, int rectCount);
virtual void drawLines(const QLine *lines, int lineCount);
virtual void drawLines(const QLineF *lines, int lineCount);
virtual void drawEllipse(const QRectF &r);
virtual void drawEllipse(const QRect &r);
virtual void drawPath(const QPainterPath &path);
virtual void drawPoints(const QPointF *points, int pointCount);
virtual void drawPoints(const QPoint *points, int pointCount);
virtual void drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode);
virtual void drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode);
virtual void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) = 0;
virtual void drawPixmap(const QPointF &pos, const QPixmap &pm);
virtual void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr,
Qt::ImageConversionFlags flags = Qt::AutoColor) = 0;
virtual void drawImage(const QPointF &pos, const QImage &image);
virtual void drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s);
virtual void updateState(const QPaintEngineState &state);
virtual void setState(QPainterState *s);
inline QPainterState *state() { return static_cast<QPainterState *>(QPaintEngine::state); }
inline const QPainterState *state() const { return static_cast<const QPainterState *>(QPaintEngine::state); }
virtual void sync() {}
virtual QPixmapFilter *createPixmapFilter(int /*type*/) const { return 0; }
protected:
QPaintEngineEx(QPaintEngineExPrivate &data);
};
class Q_GUI_EXPORT QPaintEngineExPrivate : public QPaintEnginePrivate
{
Q_DECLARE_PUBLIC(QPaintEngineEx)
public:
QPaintEngineExPrivate();
~QPaintEngineExPrivate();
void replayClipOperations();
bool hasClipOperations() const;
QStroker stroker;
QDashStroker dasher;
StrokeHandler *strokeHandler;
QStrokerOps *activeStroker;
QPen strokerPen;
};
inline uint QVectorPath::polygonFlags(QPaintEngine::PolygonDrawMode mode) {
switch (mode) {
case QPaintEngine::ConvexMode: return ConvexPolygonHint | ImplicitClose;
case QPaintEngine::OddEvenMode: return NonCurvedShapeHint | OddEvenFill | ImplicitClose;
case QPaintEngine::WindingMode: return NonCurvedShapeHint | WindingFill | ImplicitClose;
case QPaintEngine::PolylineMode: return NonCurvedShapeHint;
default: return 0;
}
}
QT_END_NAMESPACE
QT_END_HEADER
#endif
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