summaryrefslogtreecommitdiffstats
path: root/src/path/path-simplify.cpp
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:24:48 +0000
commitcca66b9ec4e494c1d919bff0f71a820d8afab1fa (patch)
tree146f39ded1c938019e1ed42d30923c2ac9e86789 /src/path/path-simplify.cpp
parentInitial commit. (diff)
downloadinkscape-upstream.tar.xz
inkscape-upstream.zip
Adding upstream version 1.2.2.upstream/1.2.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/path/path-simplify.cpp')
-rw-r--r--src/path/path-simplify.cpp123
1 files changed, 123 insertions, 0 deletions
diff --git a/src/path/path-simplify.cpp b/src/path/path-simplify.cpp
new file mode 100644
index 0000000..7bc7ddf
--- /dev/null
+++ b/src/path/path-simplify.cpp
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * Simplify paths (reduce node count).
+ *//*
+ * Authors:
+ * see git history
+ * Created by fred on Fri Dec 05 2003.
+ * tweaked endlessly by bulia byak <buliabyak@users.sf.net>
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#ifdef HAVE_CONFIG_H
+#endif
+
+#include <vector>
+
+#include "path-simplify.h"
+#include "path-util.h"
+
+#include "document-undo.h"
+#include "preferences.h"
+
+#include "livarot/Path.h"
+
+#include "object/sp-item-group.h"
+#include "object/sp-path.h"
+
+using Inkscape::DocumentUndo;
+
+// Return number of paths simplified (can be greater than one if group).
+int
+path_simplify(SPItem *item, float threshold, bool justCoalesce, double size)
+{
+ //If this is a group, do the children instead
+ SPGroup* group = dynamic_cast<SPGroup *>(item);
+ if (group) {
+ int pathsSimplified = 0;
+ std::vector<SPItem*> items = sp_item_group_item_list(group);
+ for (auto item : items) {
+ pathsSimplified += path_simplify(item, threshold, justCoalesce, size);
+ }
+ return pathsSimplified;
+ }
+
+ SPPath* path = dynamic_cast<SPPath *>(item);
+ if (!path) {
+ return 0;
+ }
+
+ // There is actually no option in the preferences dialog for this!
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ bool simplifyIndividualPaths = prefs->getBool("/options/simplifyindividualpaths/value");
+ if (simplifyIndividualPaths) {
+ Geom::OptRect itemBbox = item->documentVisualBounds();
+ if (itemBbox) {
+ size = L2(itemBbox->dimensions());
+ } else {
+ size = 0;
+ }
+ }
+
+ // Correct virtual size by full transform (bug #166937).
+ size /= item->i2doc_affine().descrim();
+
+ // Save the transform, to re-apply it after simplification.
+ Geom::Affine const transform(item->transform);
+
+ /*
+ reset the transform, effectively transforming the item by transform.inverse();
+ this is necessary so that the item is transformed twice back and forth,
+ allowing all compensations to cancel out regardless of the preferences
+ */
+ item->doWriteTransform(Geom::identity());
+
+ // SPLivarot: Start -----------------
+
+ // Get path to simplify (note that the path *before* LPE calculation is needed)
+ Path *orig = Path_for_item_before_LPE(item, false);
+ if (orig == nullptr) {
+ return 0;
+ }
+
+ if ( justCoalesce ) {
+ orig->Coalesce(threshold * size);
+ } else {
+ orig->ConvertEvenLines(threshold * size);
+ orig->Simplify(threshold * size);
+ }
+
+ // Path
+ gchar *str = orig->svg_dump_path();
+
+ // SPLivarot: End -------------------
+
+ char const *patheffect = item->getRepr()->attribute("inkscape:path-effect");
+ if (patheffect) {
+ item->setAttribute("inkscape:original-d", str);
+ } else {
+ item->setAttribute("d", str);
+ }
+ g_free(str);
+
+ // reapply the transform
+ item->doWriteTransform(transform);
+
+ // clean up
+ if (orig) delete orig;
+
+ return 1;
+}
+
+/*
+ Local Variables:
+ mode:c++
+ c-file-style:"stroustrup"
+ c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+ indent-tabs-mode:nil
+ fill-column:99
+ End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :