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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/svgpathparser.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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+/* This file is part of the KDE project
+ Copyright (C) 2002, 2003 The Karbon Developers
+
+ 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 __SVGPATHPARSER_H__
+#define __SVGPATHPARSER_H__
+
+class QString;
+
+namespace KSVG
+{
+ const char *getNumber( const char *, double & );
+}
+
+/**
+ * Parser for svg path data, contained in the d attribute.
+ *
+ * The parser delivers encountered commands and parameters by calling
+ * methods that correspond to those commands. Clients have to derive
+ * from this class and implement the abstract command methods.
+ *
+ * There are two operating modes. By default the parser just delivers unaltered
+ * svg path data commands and parameters. In the second mode, it will convert all
+ * relative coordinates to absolute ones, and convert all curves to cubic beziers.
+ */
+class SVGPathParser
+{
+public:
+ void parseSVG( const QString &d, bool process = false );
+
+ static const char *getCoord( const char *, double & );
+
+protected:
+ virtual void svgMoveTo( double x1, double y1, bool closed, bool abs = true ) = 0;
+ virtual void svgLineTo( double x1, double y1, bool abs = true ) = 0;
+ virtual void svgLineToHorizontal( double x, bool abs = true );
+ virtual void svgLineToVertical( double y, bool abs = true );
+ virtual void svgCurveToCubic( double x1, double y1, double x2, double y2, double x, double y, bool abs = true ) = 0;
+ virtual void svgCurveToCubicSmooth( double x, double y, double x2, double y2, bool abs = true );
+ virtual void svgCurveToQuadratic( double x, double y, double x1, double y1, bool abs = true );
+ virtual void svgCurveToQuadraticSmooth( double x, double y, bool abs = true );
+ virtual void svgArcTo( double x, double y, double r1, double r2, double angle, bool largeArcFlag, bool sweepFlag, bool abs = true );
+ virtual void svgClosePath() = 0;
+private:
+ void calculateArc( bool relative, double &curx, double &cury, double angle, double x, double y, double r1, double r2, bool largeArcFlag, bool sweepFlag );
+};
+
+#endif