qsgopenvgnodevisitor.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 QSGOPENVGNODEVISITOR_H
#define QSGOPENVGNODEVISITOR_H
 
#include <private/qsgadaptationlayer_p.h>
#include <QtCore/QStack>
 
#include "qopenvgmatrix.h"
 
#include <VG/openvg.h>
 
QT_BEGIN_NAMESPACE
 
class QSGOpenVGRenderable;
class QSGOpenVGNodeVisitor : public QSGNodeVisitorEx
{
public:
    QSGOpenVGNodeVisitor();
 
    bool visit(QSGTransformNode *) override;
    void endVisit(QSGTransformNode *) override;
    bool visit(QSGClipNode *) override;
    void endVisit(QSGClipNode *) override;
    bool visit(QSGGeometryNode *) override;
    void endVisit(QSGGeometryNode *) override;
    bool visit(QSGOpacityNode *) override;
    void endVisit(QSGOpacityNode *) override;
    bool visit(QSGInternalImageNode *) override;
    void endVisit(QSGInternalImageNode *) override;
    bool visit(QSGPainterNode *) override;
    void endVisit(QSGPainterNode *) override;
    bool visit(QSGInternalRectangleNode *) override;
    void endVisit(QSGInternalRectangleNode *) override;
    bool visit(QSGGlyphNode *) override;
    void endVisit(QSGGlyphNode *) override;
    bool visit(QSGRootNode *) override;
    void endVisit(QSGRootNode *) override;
#if QT_CONFIG(quick_sprite)
    bool visit(QSGSpriteNode *) override;
    void endVisit(QSGSpriteNode *) override;
#endif
    bool visit(QSGRenderNode *) override;
    void endVisit(QSGRenderNode *) override;
 
private:
    VGPath generateClipPath(const QRectF &rect) const;
    void renderRenderableNode(QSGOpenVGRenderable *node);
 
    QStack<QOpenVGMatrix> m_transformStack;
    QStack<float> m_opacityState;
    QStack<VGPath> m_clipStack;
};
 
QT_END_NAMESPACE
 
#endif // QSGOPENVGNODEVISITOR_H