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#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 <QtGui/qdrawutil.h>
#include <private/qpaintengine_p.h>
#include <private/qstroker_p.h>
#include <private/qpainter_p.h>
#include <private/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 drawRoundedRect(const QRectF &rect, qreal xrad, qreal yrad, Qt::SizeMode mode);
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 drawPixmaps(const QDrawPixmaps::Data *drawingData, int dataCount, const QPixmap &pixmap, QFlags<QDrawPixmaps::DrawingHint> hints);
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 void beginNativePainting() {}
virtual void endNativePainting() {}
// Return a pixmap filter of "type" that can render the parameters
// in "prototype". The returned filter is owned by the engine and
// will be destroyed when the engine is destroyed. The "prototype"
// allows the engine to pick different filters based on the parameters
// that will be requested, and not just the "type".
virtual QPixmapFilter *pixmapFilter(int /*type*/, const QPixmapFilter * /*prototype*/) { return 0; }
// These flags are needed in the implementation of paint buffers.
enum Flags
{
DoNotEmulate = 0x01, // If set, QPainter will not wrap this engine in an emulation engine.
IsEmulationEngine = 0x02 // If set, this object is a QEmulationEngine.
};
virtual uint flags() 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;
QRect exDeviceRect;
};
inline uint QVectorPath::polygonFlags(QPaintEngine::PolygonDrawMode mode) {
switch (mode) {
case QPaintEngine::ConvexMode: return ConvexPolygonHint | ImplicitClose;
case QPaintEngine::OddEvenMode: return PolygonHint | OddEvenFill | ImplicitClose;
case QPaintEngine::WindingMode: return PolygonHint | WindingFill | ImplicitClose;
case QPaintEngine::PolylineMode: return PolygonHint;
default: return 0;
}
}
QT_END_NAMESPACE
QT_END_HEADER
#endif