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, 154 insertions, 0 deletions

diff --git a/ksvg/core/CanvasItem.h b/ksvg/core/CanvasItem.h
new file mode 100644
index 00000000..7ffc7ad9
--- /dev/null
+++ b/ksvg/core/CanvasItem.h
@@ -0,0 +1,154 @@
+/*
+    Copyright (C) 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 CANVASITEM_H
+#define CANVASITEM_H
+
+#include <qrect.h>
+#include <qpoint.h>
+#include <qvaluelist.h>
+
+#define CHUNK_SIZE_HORIZONTAL 32
+#define CHUNK_SIZE_VERTICAL   32
+
+namespace KSVG
+{
+
+class SVGElementImpl;
+
+enum RenderContext
+{
+	/* NONE = for initializing */
+	NONE = 0,
+	/* NORMAL = use baseVal()'s for calculation, and fillRule */
+	NORMAL = 1,
+	/* CLIPPING = use baseVal()'s for calculation, and clipRule */
+	CLIPPING = 2,
+	/* ANIMATION = use animVal()'s for calculation, and fillRule */
+	ANIMATION = 4
+};
+
+enum CanvasItemUpdate
+{
+	UPDATE_STYLE,
+	UPDATE_LINEWIDTH,
+	UPDATE_TRANSFORM,
+	UPDATE_ZOOM,
+	UPDATE_PAN
+};
+
+class CanvasItem
+{
+public:
+	CanvasItem() { m_zIndex = 0; m_referenced = false; }
+	virtual ~CanvasItem() { }
+
+	virtual QRect bbox() const = 0;
+	virtual bool fillContains(const QPoint &) = 0;
+	virtual bool strokeContains(const QPoint &) = 0;
+	virtual void update(CanvasItemUpdate reason, int param1 = 0, int param2 = 0) = 0;
+	virtual void draw() = 0;
+	virtual bool isVisible() = 0;
+
+	void setZIndex(unsigned int zIndex) { m_zIndex = zIndex; }
+	unsigned int zIndex() const { return m_zIndex; }
+
+	void setReferenced(bool referenced) { m_referenced = referenced; }
+	bool referenced() const { return m_referenced; }
+
+	virtual SVGElementImpl *element() const { return 0; }
+
+protected:
+	unsigned int m_zIndex;
+	bool m_referenced;
+};
+
+class CanvasItemPtr
+{
+public:
+	CanvasItemPtr() : ptr(0) { }
+	CanvasItemPtr(CanvasItem *p) : ptr(p) { }
+
+	bool operator<=(const CanvasItemPtr& that) const
+	{
+		// Order same-z objects by identity.
+		if(that.ptr->zIndex() == ptr->zIndex())
+			return that.ptr >= ptr;
+		return that.ptr->zIndex() >= ptr->zIndex();
+	}
+	bool operator<(const CanvasItemPtr& that) const
+	{
+		// Order same-z objects by identity.
+		if(that.ptr->zIndex() == ptr->zIndex())
+			return that.ptr > ptr;
+		return that.ptr->zIndex() > ptr->zIndex();
+	}
+	bool operator>(const CanvasItemPtr& that) const
+	{
+		// Order same-z objects by identity.
+		if(that.ptr->zIndex() == ptr->zIndex())
+			return that.ptr < ptr;
+		return that.ptr->zIndex() < ptr->zIndex();
+	}
+	bool operator==(const CanvasItemPtr& that) const { return that.ptr == ptr; }
+	operator CanvasItem *() const { return ptr; }
+
+private:
+	CanvasItem *ptr;
+};
+
+class CanvasItemList : public QValueList<CanvasItem *>
+{
+public:
+	void sort() { qHeapSort(*((QValueList<CanvasItemPtr> *) this)); }
+};
+
+class CanvasChunk
+{
+public:
+	CanvasChunk(short x, short y) : m_x(x), m_y(y), m_dirty(false) { }
+
+	void sort() { m_list.sort(); }
+	const CanvasItemList &list() const { return m_list; }
+
+	void add(CanvasItem *item) { m_list.prepend(item); m_dirty = true; }
+	void remove(CanvasItem *item) { m_list.remove(item); m_dirty = true; }
+
+	void setDirty() { m_dirty = true; }
+	bool unsetDirty() { bool y = m_dirty; m_dirty = false; return y; }
+	bool isDirty() const { return m_dirty; }
+
+	short x() const { return m_x; }
+	short y() const { return m_y; }
+
+	QRect bbox() const { return QRect(m_x * CHUNK_SIZE_HORIZONTAL, m_y * CHUNK_SIZE_VERTICAL, CHUNK_SIZE_HORIZONTAL, CHUNK_SIZE_VERTICAL); }
+
+private:
+	CanvasItemList m_list;
+	short m_x;
+	short m_y;
+	bool m_dirty : 1;
+};
+
+}
+
+#endif
+
+// vim:ts=4:noet