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39
40#ifndef QSGDISTANCEFIELDGLYPHNODE_P_H
41#define QSGDISTANCEFIELDGLYPHNODE_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/qsgadaptationlayer_p.h>
55#include <QtQuick/qsgtexture.h>
56
57#include <QtQuick/private/qquicktext_p.h>
58
59QT_BEGIN_NAMESPACE
60
61class QSGRenderContext;
62class QSGDistanceFieldTextMaterial;
63
64class QSGDistanceFieldGlyphNode : public QSGGlyphNode, public QSGDistanceFieldGlyphConsumer
65{
66public:
67 QSGDistanceFieldGlyphNode(QSGRenderContext *context);
68 ~QSGDistanceFieldGlyphNode();
69
70 QPointF baseLine() const override { return m_baseLine; }
71 void setGlyphs(const QPointF &position, const QGlyphRun &glyphs) override;
72 void setColor(const QColor &color) override;
73
74 void setPreferredAntialiasingMode(AntialiasingMode mode) override;
75
76 void setStyle(QQuickText::TextStyle style) override;
77 void setStyleColor(const QColor &color) override;
78
79 void update() override;
80 void preprocess() override;
81
82 void invalidateGlyphs(const QVector<quint32> &glyphs) override;
83
84 void updateGeometry();
85
86private:
87 enum DistanceFieldGlyphNodeType {
88 RootGlyphNode,
89 SubGlyphNode
90 };
91
92 void setGlyphNodeType(DistanceFieldGlyphNodeType type) { m_glyphNodeType = type; }
93 void updateMaterial();
94
95 DistanceFieldGlyphNodeType m_glyphNodeType;
96 QColor m_color;
97 QPointF m_baseLine;
98 QSGRenderContext *m_context;
99 QSGDistanceFieldTextMaterial *m_material;
100 QPointF m_originalPosition;
101 QPointF m_position;
102 QGlyphRun m_glyphs;
103 QSGDistanceFieldGlyphCache *m_glyph_cache;
104 QSGGeometry m_geometry;
105 QQuickText::TextStyle m_style;
106 QColor m_styleColor;
107 AntialiasingMode m_antialiasingMode;
108 QRectF m_boundingRect;
109 const QSGDistanceFieldGlyphCache::Texture *m_texture;
110
111 struct GlyphInfo {
112 QVector<quint32> indexes;
113 QVector<QPointF> positions;
114 };
115 QSet<quint32> m_allGlyphIndexesLookup;
116
117 uint m_dirtyGeometry: 1;
118 uint m_dirtyMaterial: 1;
119};
120
121QT_END_NAMESPACE
122
123#endif
124