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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 QSGDISTANCEFIELDGLYPHNODE_P_H
#define QSGDISTANCEFIELDGLYPHNODE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qsgadaptationlayer_p.h>
#include <QtQuick/qsgtexture.h>
#include <QtQuick/private/qquicktext_p.h>
QT_BEGIN_NAMESPACE
class QSGRenderContext;
class QSGDistanceFieldTextMaterial;
class QSGDistanceFieldGlyphNode : public QSGGlyphNode, public QSGDistanceFieldGlyphConsumer
{
public:
QSGDistanceFieldGlyphNode(QSGRenderContext *context);
~QSGDistanceFieldGlyphNode();
QPointF baseLine() const override { return m_baseLine; }
void setGlyphs(const QPointF &position, const QGlyphRun &glyphs) override;
void setColor(const QColor &color) override;
void setPreferredAntialiasingMode(AntialiasingMode mode) override;
void setRenderTypeQuality(int renderTypeQuality) override;
void setStyle(QQuickText::TextStyle style) override;
void setStyleColor(const QColor &color) override;
void update() override;
void preprocess() override;
void invalidateGlyphs(const QVector<quint32> &glyphs) override;
void updateGeometry();
private:
enum DistanceFieldGlyphNodeType {
RootGlyphNode,
SubGlyphNode
};
void setGlyphNodeType(DistanceFieldGlyphNodeType type) { m_glyphNodeType = type; }
void updateMaterial();
DistanceFieldGlyphNodeType m_glyphNodeType;
QColor m_color;
QPointF m_baseLine;
QSGRenderContext *m_context;
QSGDistanceFieldTextMaterial *m_material;
QPointF m_originalPosition;
QPointF m_position;
QGlyphRun m_glyphs;
QSGDistanceFieldGlyphCache *m_glyph_cache;
QSGGeometry m_geometry;
QQuickText::TextStyle m_style;
QColor m_styleColor;
AntialiasingMode m_antialiasingMode;
QRectF m_boundingRect;
const QSGDistanceFieldGlyphCache::Texture *m_texture;
int m_renderTypeQuality;
struct GlyphInfo {
QVector<quint32> indexes;
QVector<QPointF> positions;
};
QSet<quint32> m_allGlyphIndexesLookup;
// m_glyphs holds pointers to the GlyphInfo.indexes and positions arrays, so we need to hold on to them
QHash<const QSGDistanceFieldGlyphCache::Texture *, GlyphInfo> m_glyphsInOtherTextures;
uint m_dirtyGeometry: 1;
uint m_dirtyMaterial: 1;
static qint64 m_totalAllocation; // all SG glyph vertices and indices; only for qCDebug metrics
};
QT_END_NAMESPACE
#endif
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