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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 QSVGSTRUCTURE_P_H
#define QSVGSTRUCTURE_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 "qsvgnode_p.h"
#include "QtCore/qlist.h"
#include "QtCore/qhash.h"
QT_BEGIN_NAMESPACE
class QSvgTinyDocument;
class QSvgNode;
class QPainter;
class QSvgDefs;
class Q_SVG_EXPORT QSvgStructureNode : public QSvgNode
{
public:
QSvgStructureNode(QSvgNode *parent);
~QSvgStructureNode();
QSvgNode *scopeNode(const QString &id) const;
void addChild(QSvgNode *child, const QString &id);
QRectF bounds(QPainter *p, QSvgExtraStates &states) const override;
QSvgNode *previousSiblingNode(QSvgNode *n) const;
QList<QSvgNode*> renderers() const { return m_renderers; }
protected:
QList<QSvgNode*> m_renderers;
QHash<QString, QSvgNode*> m_scope;
QList<QSvgStructureNode*> m_linkedScopes;
mutable bool m_recursing = false;
};
class Q_SVG_EXPORT QSvgG : public QSvgStructureNode
{
public:
QSvgG(QSvgNode *parent);
void drawCommand(QPainter *, QSvgExtraStates &) override;
bool shouldDrawNode(QPainter *p, QSvgExtraStates &states) const override;
Type type() const override;
};
class Q_SVG_EXPORT QSvgDefs : public QSvgStructureNode
{
public:
QSvgDefs(QSvgNode *parent);
void drawCommand(QPainter *, QSvgExtraStates &) override {};
bool shouldDrawNode(QPainter *p, QSvgExtraStates &states) const override;
Type type() const override;
};
class Q_SVG_EXPORT QSvgSymbolLike : public QSvgStructureNode
{
// Marker, Symbol and potentially other elements share a lot of common
// attributes and functionality. By making a common base class we can
// avoid repetition.
public:
enum class Overflow : quint8 {
Visible,
Hidden,
Scroll = Visible, //Will not support scrolling
Auto = Visible
};
enum class PreserveAspectRatio : quint8 {
None = 0b000000,
xMin = 0b000001,
xMid = 0b000010,
xMax = 0b000011,
yMin = 0b000100,
yMid = 0b001000,
yMax = 0b001100,
meet = 0b010000,
slice = 0b100000,
xMask = xMin | xMid | xMax,
yMask = yMin | yMid | yMax,
xyMask = xMask | yMask,
meetSliceMask = meet | slice
};
Q_DECLARE_FLAGS(PreserveAspectRatios, PreserveAspectRatio)
QSvgSymbolLike(QSvgNode *parent, QRectF bounds, QRectF viewBox, QPointF refP,
QSvgSymbolLike::PreserveAspectRatios pAspectRatios, QSvgSymbolLike::Overflow overflow);
void drawCommand(QPainter *, QSvgExtraStates &) override {};
protected:
void setPainterToRectAndAdjustment(QPainter *p) const;
protected:
QRectF m_rect;
QRectF m_viewBox;
QPointF m_refP;
PreserveAspectRatios m_pAspectRatios;
Overflow m_overflow;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QSvgSymbolLike::PreserveAspectRatios)
class Q_SVG_EXPORT QSvgSymbol : public QSvgSymbolLike
{
public:
QSvgSymbol(QSvgNode *parent, QRectF bounds, QRectF viewBox, QPointF refP,
QSvgSymbolLike::PreserveAspectRatios pAspectRatios, QSvgSymbolLike::Overflow overflow);
void drawCommand(QPainter *p, QSvgExtraStates &states) override;
Type type() const override;
};
class Q_SVG_EXPORT QSvgMarker : public QSvgSymbolLike
{
public:
enum class Orientation : quint8 {
Auto,
AutoStartReverse,
Value
};
enum class MarkerUnits : quint8 {
StrokeWidth,
UserSpaceOnUse
};
QSvgMarker(QSvgNode *parent, QRectF bounds, QRectF viewBox, QPointF refP,
QSvgSymbolLike::PreserveAspectRatios pAspectRatios, QSvgSymbolLike::Overflow overflow,
Orientation orientation, qreal orientationAngle, MarkerUnits markerUnits);
void drawCommand(QPainter *p, QSvgExtraStates &states) override;
static void drawMarkersForNode(QSvgNode *node, QPainter *p, QSvgExtraStates &states);
Orientation orientation() const {
return m_orientation;
}
qreal orientationAngle() const {
return m_orientationAngle;
}
MarkerUnits markerUnits() const {
return m_markerUnits;
}
Type type() const override;
private:
struct PositionMarkerPair {
qreal x;
qreal y;
qreal angle;
QString markerId;
bool isStartNode = false;
};
Orientation m_orientation;
qreal m_orientationAngle;
MarkerUnits m_markerUnits;
};
class Q_SVG_EXPORT QSvgFilterContainer : public QSvgStructureNode
{
public:
QSvgFilterContainer(QSvgNode *parent, const QSvgRectF &bounds, QtSvg::UnitTypes filterUnits, QtSvg::UnitTypes primitiveUnits);
void drawCommand(QPainter *, QSvgExtraStates &) override {};
Type type() const override;
QImage applyFilter(QSvgNode *referenceNode, const QImage &buffer, QPainter *p, QRectF bounds) const;
private:
QSvgRectF m_rect;
QtSvg::UnitTypes m_filterUnits;
QtSvg::UnitTypes m_primitiveUnits;
};
class Q_SVG_EXPORT QSvgSwitch : public QSvgStructureNode
{
public:
QSvgSwitch(QSvgNode *parent);
void drawCommand(QPainter *p, QSvgExtraStates &states) override;
Type type() const override;
private:
void init();
private:
QString m_systemLanguage;
QString m_systemLanguagePrefix;
};
class Q_SVG_EXPORT QSvgMask : public QSvgStructureNode
{
public:
QSvgMask(QSvgNode *parent, QSvgRectF bounds,
QtSvg::UnitTypes contentsUnits);
void drawCommand(QPainter *, QSvgExtraStates &) override {};
Type type() const override;
QImage createMask(QPainter *p, QSvgExtraStates &states, QSvgNode *targetNode, QRectF *globalRect) const;
QImage createMask(QPainter *p, QSvgExtraStates &states, const QRectF &localRect, QRectF *globalRect) const;
QSvgRectF rect() const
{
return m_rect;
}
QtSvg::UnitTypes contentUnits() const
{
return m_contentUnits;
}
private:
QSvgRectF m_rect;
QtSvg::UnitTypes m_contentUnits;
};
class Q_SVG_EXPORT QSvgPattern : public QSvgStructureNode
{
public:
QSvgPattern(QSvgNode *parent, QSvgRectF bounds, QRectF viewBox,
QtSvg::UnitTypes contentUnits, QTransform transform);
void drawCommand(QPainter *, QSvgExtraStates &) override {};
QImage patternImage(QPainter *p, QSvgExtraStates &states, const QSvgNode *patternElement);
Type type() const override;
const QTransform& appliedTransform() const { return m_appliedTransform; }
private:
QImage renderPattern(QSize size, qreal contentScaleX, qreal contentScaleY);
void calculateAppliedTransform(QTransform& worldTransform, QRectF peLocalBB, QSize imageSize);
private:
QTransform m_appliedTransform;
QSvgRectF m_rect;
QRectF m_viewBox;
QtSvg::UnitTypes m_contentUnits;
QTransform m_transform;
};
QT_END_NAMESPACE
#endif // QSVGSTRUCTURE_P_H
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