qwindowsdirect2dpaintengine.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

// Qt-Security score:significant reason:default

#ifndef QWINDOWSDIRECT2DPAINTENGINE_H

#define QWINDOWSDIRECT2DPAINTENGINE_H

#include <QtCore/qscopedpointer.h>

#include <QtGui/private/qpaintengineex_p.h>

struct ID2D1Geometry;

QT_BEGIN_NAMESPACE

class QWindowsDirect2DPaintEnginePrivate;

class QWindowsDirect2DBitmap;

class QWindowsDirect2DPaintEngine : public QPaintEngineEx

    Q_DECLARE_PRIVATE(QWindowsDirect2DPaintEngine)

    friend class QWindowsDirect2DPaintEngineSuspenderImpl;

    friend class QWindowsDirect2DPaintEngineSuspenderPrivate;

public:

    enum Flag {

        NoFlag = 0,

        TranslucentTopLevelWindow = 1,

        EmulateComposition = 2,

};

    Q_DECLARE_FLAGS(Flags, Flag)

    QWindowsDirect2DPaintEngine(QWindowsDirect2DBitmap *bitmap, Flags flags);

    bool begin(QPaintDevice *pdev) override;

    bool end() override;

    Type type() const override;

    void setState(QPainterState *s) override;

    void draw(const QVectorPath &path) override;

    void fill(const QVectorPath &path, const QBrush &brush) override;

    void fill(ID2D1Geometry *geometry, const QBrush &brush);

    void stroke(const QVectorPath &path, const QPen &pen) override;

    void stroke(ID2D1Geometry *geometry, const QPen &pen);

    void clip(const QVectorPath &path, Qt::ClipOperation op) 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 fillRect(const QRectF &rect, const QBrush &brush) override;

    void drawRects(const QRect *rects, int rectCount) override;

    void drawRects(const QRectF *rects, int rectCount) override;

    void drawEllipse(const QRectF &r) override;

    void drawEllipse(const QRect &r) override;

    void drawImage(const QRectF &rectangle, const QImage &image, const QRectF &sr, Qt::ImageConversionFlags flags = Qt::AutoColor) override;

    void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr) override;

    void drawStaticTextItem(QStaticTextItem *staticTextItem) override;

    void drawTextItem(const QPointF &p, const QTextItem &textItem) override;

private:

    void ensureBrush();

    void ensureBrush(const QBrush &brush);

    void ensurePen();

    void ensurePen(const QPen &pen);

    void rasterFill(const QVectorPath &path, const QBrush &brush);

    enum EmulationType { PenEmulation, BrushEmulation };

    bool emulationRequired(EmulationType type) const;

    bool antiAliasingEnabled() const;

    void adjustForAliasing(QRectF *rect);

    void adjustForAliasing(QPointF *point);

    void suspend();

    void resume();

};

Q_DECLARE_OPERATORS_FOR_FLAGS(QWindowsDirect2DPaintEngine::Flags)

class QWindowsDirect2DPaintEngineSuspenderPrivate;

class QWindowsDirect2DPaintEngineSuspender

    Q_DISABLE_COPY_MOVE(QWindowsDirect2DPaintEngineSuspender)

    Q_DECLARE_PRIVATE(QWindowsDirect2DPaintEngineSuspender)

    QScopedPointer<QWindowsDirect2DPaintEngineSuspenderPrivate> d_ptr;

public:

    QWindowsDirect2DPaintEngineSuspender(QWindowsDirect2DPaintEngine *engine);

    ~QWindowsDirect2DPaintEngineSuspender();

    void resume();

};

QT_END_NAMESPACE

#endif // QWINDOWSDIRECT2DPAINTENGINE_H