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39
40#ifndef QSGNODEUPDATER_P_H
41#define QSGNODEUPDATER_P_H
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <private/qtquickglobal_p.h>
55#include <QtGui/private/qdatabuffer_p.h>
56
57QT_BEGIN_NAMESPACE
58
59class QSGNode;
60class QSGTransformNode;
61class QSGClipNode;
62class QSGOpacityNode;
63class QSGGeometryNode;
64class QMatrix4x4;
65class QSGRenderNode;
66
67class Q_QUICK_PRIVATE_EXPORT QSGNodeUpdater
68{
69public:
70 QSGNodeUpdater();
71 virtual ~QSGNodeUpdater();
72
73 virtual void updateStates(QSGNode *n);
74 virtual bool isNodeBlocked(QSGNode *n, QSGNode *root) const;
75
76protected:
77 virtual void enterTransformNode(QSGTransformNode *);
78 virtual void leaveTransformNode(QSGTransformNode *);
79 void enterClipNode(QSGClipNode *c);
80 void leaveClipNode(QSGClipNode *c);
81 void enterOpacityNode(QSGOpacityNode *o);
82 void leaveOpacityNode(QSGOpacityNode *o);
83 void enterGeometryNode(QSGGeometryNode *);
84 void leaveGeometryNode(QSGGeometryNode *);
85 void enterRenderNode(QSGRenderNode *);
86 void leaveRenderNode(QSGRenderNode *);
87
88 void visitNode(QSGNode *n);
89 void visitChildren(QSGNode *n);
90
91
92 QDataBuffer<const QMatrix4x4 *> m_combined_matrix_stack;
93 QDataBuffer<qreal> m_opacity_stack;
94 const QSGClipNode *m_current_clip;
95
96 int m_force_update;
97};
98
99QT_END_NAMESPACE
100
101#endif
102

source code of qtdeclarative/src/quick/scenegraph/coreapi/qsgnodeupdater_p.h