diff options
Diffstat (limited to 'ksvg/plugin/backends/agg/GlyphTracerAgg.cpp')
| -rw-r--r-- | ksvg/plugin/backends/agg/GlyphTracerAgg.cpp | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/ksvg/plugin/backends/agg/GlyphTracerAgg.cpp b/ksvg/plugin/backends/agg/GlyphTracerAgg.cpp new file mode 100644 index 00000000..39b00146 --- /dev/null +++ b/ksvg/plugin/backends/agg/GlyphTracerAgg.cpp @@ -0,0 +1,113 @@ +/* + Copyright (C) 2003 Nikolas Zimmermann <[email protected]> + 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 "Glyph.h" +#include "Point.h" +#include "BezierPathAgg.h" +#include "GlyphTracerAgg.h" + +using namespace T2P; + +int traceMoveto(FT_Vector *to, void *obj) +{ + Glyph *glyph = reinterpret_cast<Glyph *>(obj); + Affine &affine = glyph->affine(); + BezierPathAgg *bpath = static_cast<BezierPathAgg *>(glyph->modifiableBezierPath()); + Point p = affine.mapPoint(Point(to->x, to->y)); + bpath->m_storage.move_to(p.x(), p.y()); + return 0; +} + +int traceLineto(FT_Vector *to, void *obj) +{ + Glyph *glyph = reinterpret_cast<Glyph *>(obj); + Affine &affine = glyph->affine(); + BezierPathAgg *bpath = static_cast<BezierPathAgg *>(glyph->modifiableBezierPath()); + Point p = affine.mapPoint(Point(to->x, to->y)); + bpath->m_storage.line_to(p.x(), p.y()); + return 0; +} + +int traceConicBezier(FT_Vector *control, FT_Vector *to, void *obj) +{ + Glyph *glyph = reinterpret_cast<Glyph *>(obj); + Affine &affine = glyph->affine(); + BezierPathAgg *bpath = static_cast<BezierPathAgg *>(glyph->modifiableBezierPath()); + Point c = affine.mapPoint(Point(control->x, control->y)); + Point p = affine.mapPoint(Point(to->x, to->y)); + + double sx, sy; + bpath->m_storage.vertex(bpath->m_storage.total_vertices() - 1, &sx, &sy); + bpath->m_storage.curve4(c.x() - (c.x() - sx) / 3, c.y() - (c.y() - sy) / 3, + c.x() + (p.x() - c.x()) / 3, c.y() + (p.y() - c.y()) / 3, p.x(), p.y()); + + return 0; +} + +int traceCubicBezier(FT_Vector *control1, FT_Vector *control2, FT_Vector *to, void *obj) +{ + Glyph *glyph = reinterpret_cast<Glyph *>(obj); + Affine &affine = glyph->affine(); + BezierPathAgg *bpath = static_cast<BezierPathAgg *>(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)); + bpath->m_storage.curve4(c1.x(), c1.y(), c2.x(), c2.y(), p.x(), p.y()); + return 0; +} + +GlyphTracerAgg::GlyphTracerAgg() : GlyphTracer() +{ + setMoveto(*traceMoveto); + setLineto(*traceLineto); + setConicBezier(*traceConicBezier); + setCubicBezier(*traceCubicBezier); +} + +GlyphTracerAgg::~GlyphTracerAgg() +{ +} + +void GlyphTracerAgg::correctGlyph(GlyphAffinePair *glyphAffine) +{ + + // Take bezier path belonging to glyph (Note: that one is _UNMODIFIABLE_, once calculated) + const BezierPathAgg *path = static_cast<const BezierPathAgg *>(glyphAffine->glyph()->bezierPath()); + + BezierPathAgg *transformatedPath = static_cast<BezierPathAgg *>(allocBezierPath(0)); + Affine &affine = glyphAffine->affine(); + transformatedPath->copy_from(path->m_storage, affine); + glyphAffine->setTransformatedPath(transformatedPath); +} + +BezierPath *GlyphTracerAgg::allocBezierPath(int) +{ + return new BezierPathAgg(); +} + +void GlyphTracerAgg::closePath(Glyph *glyph) +{ + BezierPathAgg *bpath = static_cast<BezierPathAgg *>(glyph->modifiableBezierPath()); + bpath->m_storage.close_polygon(); +} + +// vim:ts=4:noet |