aboutsummaryrefslogtreecommitdiff
path: root/src/svg_pattern.cpp
diff options
context:
space:
mode:
authorjaseg <git@jaseg.de>2021-01-30 20:01:00 +0100
committerjaseg <git@jaseg.de>2021-01-30 20:01:00 +0100
commit2133867c8a86337c6668f9cfff06e4de9bd0bcce (patch)
treea8d1a9b41f7ae18a5a258e139635e4c54a990fc7 /src/svg_pattern.cpp
parent617a42a674bea6fcd90e19092303ce89acf4206e (diff)
downloadgerbolyze-2133867c8a86337c6668f9cfff06e4de9bd0bcce.tar.gz
gerbolyze-2133867c8a86337c6668f9cfff06e4de9bd0bcce.tar.bz2
gerbolyze-2133867c8a86337c6668f9cfff06e4de9bd0bcce.zip
Reorg: move svg-flatten files into subdir
Diffstat (limited to 'src/svg_pattern.cpp')
-rw-r--r--src/svg_pattern.cpp113
1 files changed, 0 insertions, 113 deletions
diff --git a/src/svg_pattern.cpp b/src/svg_pattern.cpp
deleted file mode 100644
index b62df28..0000000
--- a/src/svg_pattern.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * This file is part of gerbolyze, a vector image preprocessing toolchain
- * Copyright (C) 2021 Jan Sebastian Götte <gerbolyze@jaseg.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- */
-
-#include <assert.h>
-#include "svg_import_util.h"
-#include "svg_pattern.h"
-#include "svg_import_defs.h"
-#include "svg_geom.h"
-#include <gerbolyze.hpp>
-
-using namespace std;
-
-gerbolyze::Pattern::Pattern(const pugi::xml_node &node, SVGDocument &doc) : _node(node), doc(&doc) {
- /* Read pattern attributes from SVG node */
- cerr << "creating pattern for node with id \"" << node.attribute("id").value() << "\"" << endl;
- x = usvg_double_attr(node, "x");
- y = usvg_double_attr(node, "y");
- w = usvg_double_attr(node, "width");
- h = usvg_double_attr(node, "height");
- patternTransform = node.attribute("patternTransform").value();
-
- string vb_s(node.attribute("viewBox").value());
- has_vb = !vb_s.empty();
- if (has_vb) {
- istringstream vb_stream(vb_s);
- vb_stream >> vb_x >> vb_y >> vb_w >> vb_h;
- }
-
- patternUnits = map_str_to_units(node.attribute("patternUnits").value(), SVG_ObjectBoundingBox);
- patternContentUnits = map_str_to_units(node.attribute("patternContentUnits").value(), SVG_UserSpaceOnUse);
-}
-
-/* Tile pattern into gerber. Note that this function may be called several times in case the pattern is
- * referenced from multiple places, so we must not clobber any of the object's state. */
-void gerbolyze::Pattern::tile (const gerbolyze::RenderSettings &rset, ClipperLib::Paths &clip) {
- assert(doc);
- cairo_t *cr = doc->cairo();
- assert(cr);
-
- cairo_save(cr);
- /* Transform x, y, w, h from pattern coordinate space into parent coordinates by applying the inverse
- * patternTransform. This is necessary so we iterate over the correct bounds when tiling below */
- cairo_matrix_t mat;
- load_cairo_matrix_from_svg(patternTransform, mat);
- if (cairo_matrix_invert(&mat) != CAIRO_STATUS_SUCCESS) {
- cerr << "Cannot invert patternTransform matrix on pattern \"" << _node.attribute("id").value() << "\"." << endl;
- cairo_restore(cr);
- }
- double inst_x = x, inst_y = y, inst_w = w, inst_h = h;
- cairo_user_to_device(cr, &inst_x, &inst_y);
- cairo_user_to_device_distance(cr, &inst_w, &inst_h);
- cairo_restore(cr);
-
- ClipperLib::IntRect clip_bounds = get_paths_bounds(clip);
- double bx = clip_bounds.left / clipper_scale;
- double by = clip_bounds.top / clipper_scale;
- double bw = (clip_bounds.right - clip_bounds.left) / clipper_scale;
- double bh = (clip_bounds.bottom - clip_bounds.top) / clipper_scale;
-
- if (patternUnits == SVG_ObjectBoundingBox) {
- inst_x *= bw;
- inst_y *= bh;
- inst_w *= bw;
- inst_h *= bh;
- }
-
- /* Switch to pattern coordinates */
- cairo_save(cr);
- cairo_translate(cr, bx, by);
- apply_cairo_transform_from_svg(cr, patternTransform);
-
- /* Iterate over all pattern tiles in pattern coordinates */
- for (double inst_off_x = fmod(inst_x, inst_w) - inst_w;
- inst_off_x < bw + inst_w;
- inst_off_x += inst_w) {
-
- for (double inst_off_y = fmod(inst_y, inst_h) - inst_h;
- inst_off_y < bh + inst_h;
- inst_off_y += inst_h) {
-
- cairo_save(cr);
- /* Change into this individual tile's coordinate system */
- cairo_translate(cr, inst_off_x, inst_off_y);
- if (has_vb) {
- cairo_translate(cr, vb_x, vb_y);
- cairo_scale(cr, inst_w / vb_w, inst_h / vb_h);
- } else if (patternContentUnits == SVG_ObjectBoundingBox) {
- cairo_scale(cr, bw, bh);
- }
-
- /* Export the pattern tile's content like a group */
- doc->export_svg_group(rset, _node, clip);
- cairo_restore(cr);
- }
- }
- cairo_restore(cr);
-}
-