Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 414 insertions, 0 deletions

diff --git a/ksvg/plugin/backends/libart/LibartCanvasItems.h b/ksvg/plugin/backends/libart/LibartCanvasItems.h
new file mode 100644
index 00000000..c62224e5
--- /dev/null
+++ b/ksvg/plugin/backends/libart/LibartCanvasItems.h
@@ -0,0 +1,414 @@
+/*
+    Copyright (C) 2001-2003 KSVG Team
+    This file is part of the KDE project
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    aint with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef LIBARTCANVASITEMS_H
+#define LIBARTCANVASITEMS_H
+
+#include <qptrlist.h>
+
+#include "CanvasItems.h"
+#include "LibartCanvas.h"
+#include "BezierPathLibart.h"
+
+#include "SVGPathElementImpl.h"
+#include "SVGPolyElementImpl.h"
+#include "SVGLineElementImpl.h"
+#include "SVGRectElementImpl.h"
+#include "SVGTextElementImpl.h"
+#include "SVGCircleElementImpl.h"
+#include "SVGEllipseElementImpl.h"
+
+// Helpers
+#define allocVPath(n) art_new(ArtVpath, n)
+#define allocBPath(n) art_new(ArtBpath, n)
+
+#define LIBART_CLASS(Class, Type, Member) \
+class Libart##Class : public LibartShape \
+{ \
+public: \
+    Libart##Class(LibartCanvas *c, Type *Member); \
+    virtual ~Libart##Class() { } \
+	virtual void draw(); \
+	virtual bool isVisible(); \
+	virtual void init(); \
+	virtual void init(const SVGMatrixImpl *screenCTM); \
+	virtual SVGElementImpl *element() const { return m_##Member; } \
+protected: \
+    Type *m_##Member; \
+};
+
+struct _ArtSVP;
+struct _ArtBpath;
+struct _ArtRender;
+struct _ArtGradientStop;
+
+namespace KSVG
+{
+	class SVGImageElementImpl;
+	class SVGGradientElementImpl;
+	class SVGRadialGradientElementImpl;
+	class SVGLinearGradientElementImpl;
+	class SVGPatternElementImpl;
+
+	class LibartPaintServer : public CanvasPaintServer
+	{
+	public:
+		LibartPaintServer() : CanvasPaintServer() {}
+		virtual ~LibartPaintServer() {}
+
+		virtual void render(KSVGCanvas *c, _ArtSVP *svp, float opacity, QByteArray mask, QRect screenBBox) = 0;
+
+		_ArtRender *createRenderer(QRect rect, KSVGCanvas *c);
+	};
+
+	class LibartGradient : public LibartPaintServer
+	{
+	public:
+		LibartGradient(SVGGradientElementImpl *gradient) : m_gradient(gradient) {}
+		virtual ~LibartGradient() {}
+
+		void parseGradientStops(SVGGradientElementImpl *gradient);
+
+		virtual void finalizePaintServer();
+		virtual void reference(const QString &href);
+
+	protected:
+		SVGGradientElementImpl *m_gradient;
+		QMemArray<_ArtGradientStop> m_stops;
+	};
+
+	class LibartLinearGradient : public LibartGradient
+	{
+	public:
+		LibartLinearGradient(SVGLinearGradientElementImpl *linear) : LibartGradient(linear), m_linear(linear) {}
+
+		virtual void render(KSVGCanvas *c, _ArtSVP *svp, float opacity, QByteArray mask, QRect screenBBox);
+
+	protected:
+		SVGLinearGradientElementImpl *m_linear;
+	};
+
+	class LibartRadialGradient : public LibartGradient
+	{
+	public:
+		LibartRadialGradient(SVGRadialGradientElementImpl *radial) : LibartGradient(radial), m_radial(radial) {}
+
+		virtual void render(KSVGCanvas *c, _ArtSVP *svp, float opacity, QByteArray mask, QRect screenBBox);
+
+	protected:
+		SVGRadialGradientElementImpl *m_radial;
+	};
+
+	class LibartPattern : public LibartPaintServer
+	{
+	public:
+		LibartPattern(SVGPatternElementImpl *pattern);
+		virtual ~LibartPattern() {}
+
+		virtual void finalizePaintServer();
+		virtual void reference(const QString &href);
+
+		virtual void render(KSVGCanvas *c, _ArtSVP *svp, float opacity, QByteArray mask, QRect screenBBox);
+
+	protected:
+		SVGPatternElementImpl *m_pattern;
+	};
+
+	class LibartPainter
+	{
+	public:
+		LibartPainter() { m_color = 0; }
+		virtual ~LibartPainter() {}
+		
+		void update(SVGStylableImpl *style);
+		void draw(LibartCanvas *canvas, _ArtSVP *svp, SVGStylableImpl *style, SVGShapeImpl *shape);
+
+		virtual float opacity(SVGStylableImpl *style) const = 0;
+		virtual unsigned short paintType(SVGStylableImpl *style) const = 0;
+		virtual QString paintUri(SVGStylableImpl *style) const = 0;
+		virtual QRgb color(SVGStylableImpl *style) const = 0;
+
+		protected:
+			art_u32 m_color;
+	};
+
+	class LibartFillPainter : public LibartPainter
+	{
+	public:
+		LibartFillPainter(SVGStylableImpl *style);
+
+		float opacity(SVGStylableImpl *style) const { return style->getFillOpacity() * style->getOpacity(); }
+		unsigned short paintType(SVGStylableImpl *style) const { return style->getFillColor()->paintType(); }
+		QString paintUri(SVGStylableImpl *style) const { return style->getFillColor()->uri().string(); }
+		QRgb color(SVGStylableImpl *style) const { return style->getFillColor()->rgbColor().color(); }
+	};
+
+	class LibartStrokePainter : public LibartPainter
+	{
+	public:
+		LibartStrokePainter(SVGStylableImpl *style);
+
+		float opacity(SVGStylableImpl *style) const { return style->getStrokeOpacity() * style->getOpacity(); }
+		unsigned short paintType(SVGStylableImpl *style) const { return style->getStrokeColor()->paintType(); }
+		QString paintUri(SVGStylableImpl *style) const { return style->getStrokeColor()->uri().string(); }
+		QRgb color(SVGStylableImpl *style) const { return style->getStrokeColor()->rgbColor().color(); }
+	};
+
+	class LibartClipItem
+	{
+	public:
+		LibartClipItem() { m_context = NORMAL; }
+		virtual ~LibartClipItem() {}
+
+		virtual void initClipItem() = 0;
+		void setRenderContext(RenderContext context) { m_context = context; }
+		virtual ArtSVP *clipSVP() = 0;
+
+	protected:
+		RenderContext m_context;
+	};
+
+	class LibartShape : public CanvasItem, public LibartClipItem
+	{
+	public:
+		LibartShape(LibartCanvas *c, SVGStylableImpl *style);
+		virtual ~LibartShape();
+
+		virtual QRect bbox() const;
+		virtual bool fillContains(const QPoint &p);
+		virtual bool strokeContains(const QPoint &p);
+		virtual void update(CanvasItemUpdate reason, int param1 = 0, int param2 = 0);
+		void draw(SVGShapeImpl *shape);
+		bool isVisible(SVGShapeImpl *shape);
+
+		virtual void init();
+		virtual void init(const SVGMatrixImpl *);
+		virtual void reset() { freeSVPs(); init(); }
+
+		void initClipItem();
+		ArtSVP *clipSVP();
+
+		static void calcClipSVP(ArtVpath *vec, SVGStylableImpl *style, const SVGMatrixImpl *matrix, _ArtSVP **clipSVP);
+		static void calcSVPs(ArtVpath *vec, SVGStylableImpl *style, const SVGMatrixImpl *matrix, _ArtSVP **strokeSVP, _ArtSVP **fillSVP);
+		static void calcSVPs(_ArtBpath *bpath, SVGStylableImpl *style, const SVGMatrixImpl *matrix, _ArtSVP **strokeSVP, _ArtSVP **fillSVP);
+
+	protected:
+		void freeSVPs();
+		static void calcSVPInternal(ArtVpath *vec, SVGStylableImpl *style, double *affine, ArtSVP **strokeSVP, ArtSVP **fillSVP);
+
+		_ArtSVP *m_fillSVP;
+		_ArtSVP *m_strokeSVP;
+		LibartFillPainter *m_fillPainter;
+		LibartStrokePainter *m_strokePainter;
+		LibartCanvas *m_canvas;
+		SVGStylableImpl *m_style;
+	};
+
+	LIBART_CLASS(Rectangle, SVGRectElementImpl, rect)
+	LIBART_CLASS(Ellipse, SVGEllipseElementImpl, ellipse)
+	LIBART_CLASS(Circle, SVGCircleElementImpl, circle)
+
+	class LibartLine : public LibartShape, public MarkerHelper
+	{
+	public:
+		LibartLine(LibartCanvas *c, SVGLineElementImpl *line);
+		virtual ~LibartLine();
+
+		virtual void draw();
+		virtual bool isVisible();
+		virtual void init();
+		virtual void init(const SVGMatrixImpl *screenCTM);
+
+		virtual SVGElementImpl *element() const { return m_line; }
+
+	protected:
+		SVGLineElementImpl *m_line;
+	};
+
+	class LibartPoly : public LibartShape, public MarkerHelper
+	{
+	public:
+		LibartPoly(LibartCanvas *c, SVGPolyElementImpl *poly);
+		virtual ~LibartPoly();
+
+		virtual void draw();
+		virtual bool isVisible();
+		virtual void init();
+		virtual void init(const SVGMatrixImpl *screenCTM) = 0;
+
+		virtual SVGElementImpl *element() const { return m_poly; }
+
+	protected:
+		SVGPolyElementImpl *m_poly;
+
+	};
+	class LibartPolyline : public LibartPoly
+	{
+	public:
+		LibartPolyline(LibartCanvas *c, SVGPolylineElementImpl *poly);
+		virtual ~LibartPolyline();
+
+		virtual void init(const SVGMatrixImpl *screenCTM);
+	};
+
+	class LibartPolygon : public LibartPoly
+	{
+	public:
+		LibartPolygon(LibartCanvas *c, SVGPolygonElementImpl *poly);
+		virtual ~LibartPolygon();
+
+		virtual void init(const SVGMatrixImpl *screenCTM);
+	};
+
+	class LibartPath : public LibartShape, public MarkerHelper, public T2P::BezierPathLibart, public ::SVGPathParser
+	{
+	public:
+		LibartPath(LibartCanvas *c, SVGPathElementImpl *path);
+		virtual ~LibartPath();
+
+		virtual void draw();
+		virtual bool isVisible();
+		virtual void reset();
+		virtual void init();
+		virtual void init(const SVGMatrixImpl *screenCTM);
+
+		virtual SVGElementImpl *element() const { return m_path; }
+
+	protected:
+		friend class LibartCanvas;
+		SVGPathElementImpl *m_path;
+
+		virtual void svgMoveTo(double x1, double y1, bool closed, bool abs = true);
+		virtual void svgLineTo(double x1, double y1, bool abs = true);
+		virtual void svgCurveToCubic(double x1, double y1, double x2, double y2, double x, double y, bool abs = true);
+		virtual void svgClosePath();
+	};
+
+	class LibartClipPath : public CanvasClipPath
+	{
+	public:
+		LibartClipPath(LibartCanvas *c, SVGClipPathElementImpl *clipPath);
+		virtual ~LibartClipPath();
+
+		virtual QRect bbox() const { return QRect(); }
+		virtual bool fillContains(const QPoint &) { return true; }
+		virtual bool strokeContains(const QPoint &) { return true; }
+		virtual void update(CanvasItemUpdate, int param1 = 0, int param2 = 0);
+		virtual void init();
+		virtual void draw();
+		virtual bool isVisible() { return false; }
+
+		_ArtSVP *clipSVP();
+
+	protected:
+		LibartCanvas *m_canvas;
+		_ArtSVP *m_clipSVP;
+
+		QPtrList<CanvasItem> m_clipItems;
+	};
+
+	class LibartImage : public CanvasItem
+	{
+	public:
+		LibartImage(LibartCanvas *c, SVGImageElementImpl *image);
+		virtual ~LibartImage();
+
+		virtual QRect bbox() const;
+		virtual bool fillContains(const QPoint &) { return true; }
+		virtual bool strokeContains(const QPoint &) { return true; }
+		virtual void update(CanvasItemUpdate, int = 0, int = 0) { }
+		virtual void init();
+		virtual void draw();
+		virtual bool isVisible();
+
+		// We can't include SVGImageElementImpl.h here
+		// because of compiliation errors (X11 headers!)
+		virtual SVGElementImpl *element() const { return reinterpret_cast<SVGElementImpl *>(m_image); }
+
+	protected:
+		LibartCanvas *m_canvas;
+		SVGImageElementImpl *m_image;
+	};
+
+	class LibartMarker : public CanvasMarker
+	{
+	public:
+		LibartMarker(LibartCanvas *c, SVGMarkerElementImpl *marker);
+		virtual ~LibartMarker();
+
+		virtual QRect bbox() const { return QRect(); }
+		virtual bool fillContains(const QPoint &) { return true; }
+		virtual bool strokeContains(const QPoint &) { return true; }
+		virtual void update(CanvasItemUpdate, int = 0, int = 0) { }
+		virtual void init();
+		virtual void draw();
+		virtual bool isVisible() { return false; }
+
+	protected:
+		LibartCanvas *m_canvas;
+	};
+	
+	class LibartText : public CanvasText, public LibartClipItem
+	{
+	public:
+		LibartText(LibartCanvas *c, SVGTextElementImpl *text);
+		virtual ~LibartText();
+
+		virtual QRect bbox() const;
+		virtual bool fillContains(const QPoint &p);
+		virtual bool strokeContains(const QPoint &p);
+		virtual void update(CanvasItemUpdate reason, int param1 = 0, int param2 = 0);
+		virtual void draw();
+		virtual bool isVisible();
+		virtual void init();
+		virtual void init(const SVGMatrixImpl *screenCTM);
+
+		virtual void renderCallback(SVGTextContentElementImpl *element, const SVGMatrixImpl *screenCTM, T2P::GlyphSet *glyph, T2P::GlyphLayoutParams *params, double anchor) const;
+		virtual void addTextDecoration(SVGTextContentElementImpl *element, double x, double y, double w, double h) const;
+
+		void initClipItem();
+		ArtSVP *clipSVP();
+
+	protected:
+		LibartCanvas *m_canvas;
+
+	private:
+		void clearSVPs();
+
+		class SVPElement
+		{
+		public:
+			SVPElement() { svp = 0; element = 0; } 
+			~SVPElement();
+
+			_ArtSVP *svp;
+			SVGTextContentElementImpl *element;
+		};
+
+		// renderCallback() is const.
+		mutable QPtrList<SVPElement> m_drawFillItems;
+		mutable QPtrList<SVPElement> m_drawStrokeItems;
+		mutable QPtrDict<LibartFillPainter> m_fillPainters;
+		mutable QPtrDict<LibartStrokePainter> m_strokePainters;
+	};
+}
+
+#endif
+