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, 190 insertions, 0 deletions

diff --git a/ksvg/core/KSVGCanvas.h b/ksvg/core/KSVGCanvas.h
new file mode 100644
index 00000000..7b26997c
--- /dev/null
+++ b/ksvg/core/KSVGCanvas.h
@@ -0,0 +1,190 @@
+/*
+    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 KSVGCANVAS_H
+#define KSVGCANVAS_H
+
+#include <qmap.h>
+#include <qdict.h>
+#include <qcolor.h>
+#include <qobject.h>
+#include <qptrlist.h>
+#include <qdict.h>
+
+#include <Converter.h>
+
+namespace KSVG
+{
+
+class SVGShapeImpl;
+class SVGMatrixImpl;
+class SVGStylableImpl;
+class SVGElementImpl;
+class SVGTextElementImpl;
+class SVGRectElementImpl;
+class SVGLineElementImpl;
+class SVGPathElementImpl;
+class SVGImageElementImpl;
+class SVGCircleElementImpl;
+class SVGMarkerElementImpl;
+class SVGEllipseElementImpl;
+class SVGPolygonElementImpl;
+class SVGPolylineElementImpl;
+class SVGClipPathElementImpl;
+
+class CanvasItem;
+class CanvasChunk;
+class CanvasItemList;
+class CanvasClipPath;
+class CanvasPaintServer;
+
+// Must be a QObject to be able to be loaded by KLibLoader...
+class KSVGCanvas : public QObject
+{
+Q_OBJECT
+public:
+	KSVGCanvas(unsigned int width, unsigned int height);
+	virtual ~KSVGCanvas();
+
+	void setViewportDimension(unsigned int w, unsigned int h);
+
+	void setup(QPaintDevice *drawWidget, QPaintDevice *directWindow);
+	void setup(unsigned char *buffer, unsigned int width = 0, unsigned int height = 0);
+
+	void reset();
+	void update();
+	void update(float zoomFactor);
+	void update(const QPoint &panPoint, bool erase = true);
+	void resize(unsigned int w, unsigned int h);
+	void retune(unsigned int csh, unsigned int csv);
+	void invalidate(CanvasItem *item, bool recalc = true);
+	CanvasItemList collisions(const QPoint &p, bool exact = false) const;
+
+	void setBackgroundColor(const QColor &c) { m_backgroundColor = c; }
+	void blit();
+	void blit(const QRect &rect, bool direct);
+
+	float zoom() const { return m_zoom; }
+	QPoint pan() const { return m_pan; }
+	void setPan(const QPoint &pan) { m_pan = pan; }
+
+	int width() const { return m_width; }
+	int height() const { return m_height; }
+
+	virtual void setRenderBufferSize(int w, int h);
+	void clipToBuffer(int &x0, int &y0, int &x1, int &y1) const;
+
+	// creating canvas items
+	virtual CanvasItem *createRectangle(SVGRectElementImpl *rect) = 0;
+	virtual CanvasItem *createEllipse(SVGEllipseElementImpl *ellipse) = 0;
+	virtual CanvasItem *createCircle(SVGCircleElementImpl *circle) = 0;
+	virtual CanvasItem *createLine(SVGLineElementImpl *line) = 0;
+	virtual CanvasItem *createPolyline(SVGPolylineElementImpl *poly) = 0;
+	virtual CanvasItem *createPolygon(SVGPolygonElementImpl *poly) = 0;
+	virtual CanvasItem *createPath(SVGPathElementImpl *path) = 0;
+	virtual CanvasItem *createClipPath(SVGClipPathElementImpl *clippath) = 0;
+	virtual CanvasItem *createImage(SVGImageElementImpl *image) = 0;
+	virtual CanvasItem *createCanvasMarker(SVGMarkerElementImpl *marker) = 0;
+	virtual CanvasItem *createText(SVGTextElementImpl *text) = 0;
+	virtual CanvasPaintServer *createPaintServer(SVGElementImpl *pserver) = 0;
+
+	void insert(CanvasItem *item, int z = -1);
+	void removeItem(CanvasItem *);
+
+	// Enable to have the canvas updated and blitted on item insertion.
+	void setImmediateUpdate(bool immediateUpdate) { m_immediateUpdate = immediateUpdate; }
+	bool immediateUpdate() const { return m_immediateUpdate; }
+
+	QPtrList<CanvasItem> allItems() const { return m_items; }
+
+	unsigned char *renderingBuffer() const { return m_buffer; }
+	unsigned int nrChannels() const { return m_nrChannels; }
+	unsigned int rowStride() const { return m_nrChannels * m_width; }
+
+	T2P::Converter *fontContext() { return m_fontContext; }
+	QPaintDevice *drawWindow() { return m_drawWindow; }
+	QPaintDevice *directWindow() { return m_directWindow; }
+
+	T2P::FontVisualParams *fontVisualParams(SVGStylableImpl *style) const;
+	virtual T2P::BezierPath *toBezierPath(CanvasItem *item) const { Q_UNUSED(item); return 0; }
+
+	// Assign z indices to the element and its children, starting with z, and 
+	// return the next z value to be used.
+	unsigned int setElementItemZIndexRecursive(SVGElementImpl *element, unsigned int z);
+
+protected:
+	void addToChunks(CanvasItem *item);
+	void removeFromChunks(CanvasItem *item);
+
+	void initVars();
+
+	void fill();
+	void clear(const QRect &r);
+
+	virtual void setBuffer(unsigned char *buffer);
+
+protected:
+	class ChunkManager
+	{
+	public:
+		ChunkManager() { m_chunks.setAutoDelete(true); }
+		void addChunk(CanvasChunk *chunk);
+		CanvasChunk *getChunk(short x, short y) const;
+
+		void clear();
+
+	private:
+		QDict<CanvasChunk> m_chunks;
+	} m_chunkManager;
+
+	QValueList<CanvasChunk *> m_dirtyChunks;
+
+	QMap<CanvasItem *, QPtrList<CanvasChunk> > m_chunksByItem;
+	QPtrList<CanvasItem> m_items;
+
+	QDict<CanvasClipPath> m_clipPaths;
+
+	unsigned int m_viewportWidth, m_viewportHeight;
+	int m_width, m_height;
+	int m_chunkSizeHor, m_chunkSizeVer;
+
+	QPaintDevice *m_drawWindow;
+	QPaintDevice *m_directWindow;
+
+	float m_zoom;
+	QPoint m_pan;
+
+	GC m_gc;
+
+	T2P::Converter *m_fontContext;
+
+	unsigned char *m_buffer;
+	unsigned int m_nrChannels;
+
+	QColor m_backgroundColor;
+
+	bool m_immediateUpdate;
+};
+
+}
+
+#endif
+
+// vim:ts=4:noet