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42 #ifndef NODEUPDATER_P_H
43 #define NODEUPDATER_P_H
45 #include <QtQuick/qtquickglobal.h>
46 #include <QtGui/private/qdatabuffer_p.h>
53 class QSGTransformNode;
56 class QSGGeometryNode;
60 class Q_QUICK_EXPORT QSGNodeUpdater
64 virtual ~QSGNodeUpdater();
66 virtual void updateStates(QSGNode *n);
67 virtual bool isNodeBlocked(QSGNode *n, QSGNode *root) const;
69 void setToplevelOpacity(qreal alpha) { m_opacity_stack.last() = alpha; }
70 qreal toplevelOpacity() const { return m_opacity_stack.last(); }
73 virtual void enterTransformNode(QSGTransformNode *);
74 virtual void leaveTransformNode(QSGTransformNode *);
75 void enterClipNode(QSGClipNode *c);
76 void leaveClipNode(QSGClipNode *c);
77 void enterOpacityNode(QSGOpacityNode *o);
78 void leaveOpacityNode(QSGOpacityNode *o);
79 void enterGeometryNode(QSGGeometryNode *);
80 void leaveGeometryNode(QSGGeometryNode *);
81 void enterRenderNode(QSGRenderNode *);
82 void leaveRenderNode(QSGRenderNode *);
84 void visitNode(QSGNode *n);
85 void visitChildren(QSGNode *n);
88 QDataBuffer<const QMatrix4x4 *> m_combined_matrix_stack;
89 QDataBuffer<qreal> m_opacity_stack;
90 const QSGClipNode *m_current_clip;
94 qreal m_toplevel_alpha;
101 #endif // NODEUPDATER_P_H