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, 177 insertions, 0 deletions

diff --git a/ksvg/plugin/backends/libart/GlyphTracerLibart.cpp b/ksvg/plugin/backends/libart/GlyphTracerLibart.cpp
new file mode 100644
index 00000000..b034c6e6
--- /dev/null
+++ b/ksvg/plugin/backends/libart/GlyphTracerLibart.cpp
@@ -0,0 +1,177 @@
+/*
+    Copyright (C) 2003 Nikolas Zimmermann <wildfox@kde.org>
+    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.
+*/
+
+#include <iostream>
+
+#include <kdebug.h>
+
+#include "Glyph.h"
+#include "Point.h"
+#include "BezierPathLibart.h"
+#include "GlyphTracerLibart.h"
+
+#include <libart_lgpl/art_bpath.h>
+
+#include <config.h>
+
+#ifdef HAVE_FREETYPE_2_2_x
+  #define FT_VECTOR_PARAMETER const FT_Vector
+#else
+  #define FT_VECTOR_PARAMETER FT_Vector
+#endif
+
+using namespace T2P;
+
+int traceMoveto(FT_VECTOR_PARAMETER *to, void *obj)
+{
+	Glyph *glyph = reinterpret_cast<Glyph *>(obj);
+	Affine &affine = glyph->affine();
+	BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
+	Point p = affine.mapPoint(Point(to->x, to->y));
+
+	int index = path->m_array.count();
+	if(index == 0 ||
+       p.x() != path->m_array[index - 1].x3 ||
+       p.y() != path->m_array[index - 1].y3)
+	{
+		path->m_array.resize(index + 1);
+		path->m_array[index].code = ART_MOVETO;
+		path->m_array[index].x3 = p.x();
+		path->m_array[index].y3 = p.y();
+	}
+
+	return 0;
+}
+
+int traceLineto(FT_VECTOR_PARAMETER *to, void *obj)
+{
+	Glyph *glyph = reinterpret_cast<Glyph *>(obj);
+	Affine &affine = glyph->affine();
+	BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
+	Point p = affine.mapPoint(Point(to->x, to->y));
+
+	int index = path->m_array.count();
+	ArtBpath *last = &path->m_array[index - 1];
+
+	if((p.x() != last->x3) || (p.y() != last->y3))
+	{
+		path->m_array.resize(index + 1);
+		path->m_array[index].code = ART_LINETO;
+		path->m_array[index].x3 = p.x();
+		path->m_array[index].y3 = p.y();
+	}
+
+	return 0;
+}
+
+int traceConicBezier(FT_VECTOR_PARAMETER *control, FT_VECTOR_PARAMETER *to, void *obj)
+{
+	Glyph *glyph = reinterpret_cast<Glyph *>(obj);
+	Affine &affine = glyph->affine();
+	BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
+
+	int index = path->m_array.count();
+	if(!(index > 0))
+		return -1;
+
+	path->m_array.resize(index + 1);
+	ArtBpath *s = &path->m_array[index - 1];
+	ArtBpath *e = &path->m_array[index];
+
+	e->code = ART_CURVETO;
+
+	Point c = affine.mapPoint(Point(control->x, control->y));
+	Point p = affine.mapPoint(Point(to->x, to->y));
+	e->x3 = p.x();
+	e->y3 = p.y();
+
+	path->m_array[index].x1 = c.x() - (c.x() - s->x3) / 3;
+	path->m_array[index].y1 = c.y() - (c.y() - s->y3) / 3;
+	path->m_array[index].x2 = c.x() + (e->x3 - c.x()) / 3;
+	path->m_array[index].y2 = c.y() + (e->y3 - c.y()) / 3;
+
+	return 0;
+}
+
+int traceCubicBezier(FT_VECTOR_PARAMETER *control1, FT_VECTOR_PARAMETER *control2, FT_VECTOR_PARAMETER *to, void *obj)
+{
+	Glyph *glyph = reinterpret_cast<Glyph *>(obj);
+	Affine &affine = glyph->affine();
+	BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
+
+	Point p = affine.mapPoint(Point(to->x, to->y));
+	Point c1 = affine.mapPoint(Point(control1->x, control1->y));
+	Point c2 = affine.mapPoint(Point(control2->x, control2->y));
+
+	int index = path->m_array.count();
+	path->m_array.resize(index + 1);
+	path->m_array[index].code = ART_CURVETO;
+	path->m_array[index].x1 = c1.x();
+	path->m_array[index].y1 = c1.y();
+	path->m_array[index].x2 = c2.x();
+	path->m_array[index].y2 = c2.y();
+	path->m_array[index].x3 = p.x();
+	path->m_array[index].y3 = p.y();
+
+	return 0;
+}
+
+GlyphTracerLibart::GlyphTracerLibart() : GlyphTracer()
+{
+	setMoveto(*traceMoveto);
+	setLineto(*traceLineto);
+	setConicBezier(*traceConicBezier);
+	setCubicBezier(*traceCubicBezier);
+}
+
+GlyphTracerLibart::~GlyphTracerLibart()
+{
+}
+
+void GlyphTracerLibart::correctGlyph(GlyphAffinePair *glyphAffine)
+{
+	// Take bezier path belonging to glyph (Note: that one is _UNMODIFIABLE_, once calculated)
+	const BezierPathLibart *path = static_cast<const BezierPathLibart *>(glyphAffine->glyph()->bezierPath());
+
+	// Create a new empty path with the same size
+	ArtBpath *transformed = art_bpath_affine_transform(path->m_array.data(), glyphAffine->affine().data());
+	BezierPathLibart *transformatedPath = new BezierPathLibart(transformed);
+	art_free(transformed);
+	glyphAffine->setTransformatedPath(transformatedPath);
+}
+
+BezierPath *GlyphTracerLibart::allocBezierPath(int)
+{
+	BezierPathLibart *bpath = new BezierPathLibart();
+	//if(size != 0)
+	//	bpath->m_array.resize(size);
+
+	return bpath;
+}	  
+
+void GlyphTracerLibart::closePath(Glyph *glyph)
+{
+	BezierPathLibart *path = static_cast<BezierPathLibart *>(glyph->modifiableBezierPath());
+	int index = path->m_array.count();
+	path->m_array.resize(index + 1);
+	path->m_array[index].code = ART_END;
+}
+
+// vim:ts=4:noet