diff options
Diffstat (limited to 'ksvg/plugin/backends/libart/GlyphTracerLibart.cpp')
| -rw-r--r-- | ksvg/plugin/backends/libart/GlyphTracerLibart.cpp | 177 |
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 |