qemulationpaintengine_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
 
#ifndef QEMULATIONPAINTENGINE_P_H
#define QEMULATIONPAINTENGINE_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/private/qtguiglobal_p.h>
#include <private/qpaintengineex_p.h>
 
QT_BEGIN_NAMESPACE
 
 
class QEmulationPaintEngine : public QPaintEngineEx
{
public:
    QEmulationPaintEngine(QPaintEngineEx *engine);
 
    bool begin(QPaintDevice *pdev) override;
    bool end() override;
 
    Type type() const override;
    QPainterState *createState(QPainterState *orig) const override;
 
    void fill(const QVectorPath &path, const QBrush &brush) override;
    void stroke(const QVectorPath &path, const QPen &pen) override;
    void clip(const QVectorPath &path, Qt::ClipOperation op) override;
 
    void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) override;
    void drawTextItem(const QPointF &p, const QTextItem &textItem) override;
    void drawStaticTextItem(QStaticTextItem *item) override;
    void drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s) override;
    void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr, Qt::ImageConversionFlags flags) override;
 
    void clipEnabledChanged() override;
    void penChanged() override;
    void brushChanged() override;
    void brushOriginChanged() override;
    void opacityChanged() override;
    void compositionModeChanged() override;
    void renderHintsChanged() override;
    void transformChanged() override;
 
    void setState(QPainterState *s) override;
 
    void beginNativePainting() override;
    void endNativePainting() override;
 
    uint flags() const override { return QPaintEngineEx::IsEmulationEngine | QPaintEngineEx::DoNotEmulate; }
 
    inline QPainterState *state() { return (QPainterState *)QPaintEngine::state; }
    inline const QPainterState *state() const { return (const QPainterState *)QPaintEngine::state; }
 
    QPaintEngineEx *real_engine;
private:
    void fillBGRect(const QRectF &r);
};
 
QT_END_NAMESPACE
 
#endif