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authortoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
committertoma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>2009-11-25 17:56:58 +0000
commit47d455dd55be855e4cc691c32f687f723d9247ee (patch)
tree52e236aaa2576bdb3840ebede26619692fed6d7d /ksvg/impl/SVGMaskElementImpl.h
downloadtdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.tar.gz
tdegraphics-47d455dd55be855e4cc691c32f687f723d9247ee.zip
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
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+/*
+ 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
+ along 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 SVGMaskElementImpl_H
+#define SVGMaskElementImpl_H
+
+#include <qwmatrix.h>
+
+#include "SVGTestsImpl.h"
+#include "SVGBBoxTarget.h"
+#include "SVGElementImpl.h"
+#include "SVGStylableImpl.h"
+#include "SVGLangSpaceImpl.h"
+#include "SVGExternalResourcesRequiredImpl.h"
+#include "LRUCache.h"
+
+#include "ksvg_lookup.h"
+
+namespace KSVG
+{
+
+
+class SVGUnitConverter;
+class KSVGCanvas;
+class SVGShapeImpl;
+class SVGRectImpl;
+class SVGAnimatedLengthImpl;
+class SVGAnimatedEnumerationImpl;
+class SVGMaskElementImpl : public SVGElementImpl,
+ public SVGTestsImpl,
+ public SVGLangSpaceImpl,
+ public SVGExternalResourcesRequiredImpl,
+ public SVGStylableImpl,
+ public SVGBBoxTarget
+{
+public:
+
+ class Mask
+ {
+ public:
+ Mask() : m_width(0), m_height(0) {}
+ Mask(const QByteArray& mask, const QWMatrix& screenToMask, int width, int height);
+ ~Mask() {}
+
+ bool isEmpty() const { return m_width == 0; }
+ unsigned char value(int screenX, int screenY) const;
+ QByteArray rectangle(int screenX, int screenY, int width, int height);
+ QByteArray rectangle(const QRect& rect);
+ void setScreenToMask(const QWMatrix& matrix) { m_screenToMask = matrix; }
+
+ private:
+ int m_width;
+ int m_height;
+ QByteArray m_mask;
+ QWMatrix m_screenToMask;
+ };
+
+ SVGMaskElementImpl(DOM::ElementImpl *);
+ virtual ~SVGMaskElementImpl();
+
+ SVGAnimatedEnumerationImpl *maskUnits() const;
+ SVGAnimatedEnumerationImpl *maskContentUnits() const;
+ SVGAnimatedLengthImpl *x() const;
+ SVGAnimatedLengthImpl *y() const;
+ SVGAnimatedLengthImpl *width() const;
+ SVGAnimatedLengthImpl *height() const;
+
+ virtual SVGRectImpl *getBBox();
+ virtual void setAttributes();
+
+ SVGUnitConverter *converter() const { return m_converter; }
+
+ Mask createMask(SVGShapeImpl *referencingElement);
+
+ // Compute the mask on a given shape, taking into account all masks defined
+ // on the shape's ancestors. This is a workaround for us not having a buffer
+ // for container elements, so we can't mask containers directly.
+ static QByteArray maskRectangle(SVGShapeImpl *shape, const QRect& screenRectangle);
+
+private:
+ class CacheKey
+ {
+ public:
+ CacheKey() : m_element(0), m_width(0), m_height(0) {}
+ CacheKey(SVGElementImpl *element, int width, int height) : m_element(element), m_width(width), m_height(height) {}
+ bool operator==(const CacheKey& other) const { return m_element == other.m_element && m_width == other.m_width && m_height == other.m_height; }
+
+ private:
+ SVGElementImpl *m_element;
+ int m_width;
+ int m_height;
+ };
+
+ Mask createMask(SVGShapeImpl *referencingElement, int imageWidth, int imageHeight);
+
+ SVGAnimatedEnumerationImpl *m_maskUnits;
+ SVGAnimatedEnumerationImpl *m_maskContentUnits;
+ SVGAnimatedLengthImpl *m_x;
+ SVGAnimatedLengthImpl *m_y;
+ SVGAnimatedLengthImpl *m_width;
+ SVGAnimatedLengthImpl *m_height;
+
+ SVGUnitConverter *m_converter;
+ KSVGCanvas *m_canvas;
+
+ MinOneLRUCache<CacheKey, Mask> m_maskCache;
+
+public:
+ KSVG_GET
+ KSVG_PUT
+ KSVG_BRIDGE
+
+ enum
+ {
+ // Properties
+ MaskUnits, MaskContentUnits, X, Y, Width, Height
+ };
+
+ KJS::Value getValueProperty(KJS::ExecState *exec, int token) const;
+ void putValueProperty(KJS::ExecState *exec, int token, const KJS::Value &value, int attr);
+};
+
+KSVG_REGISTER_ELEMENT(SVGMaskElementImpl, "mask")
+
+inline unsigned char SVGMaskElementImpl::Mask::value(int screenX, int screenY) const
+{
+ int x, y;
+
+ m_screenToMask.map(screenX, screenY, &x, &y);
+
+ if(x >= 0 && x < m_width && y >= 0 && y < m_height)
+ return m_mask[x + y * m_width];
+ else
+ return 0;
+}
+
+}
+
+#endif
+
+// vim:ts=4:noet