1 files changed, 50 insertions, 0 deletions
diff --git a/src/object/sp-item-update-cns.cpp b/src/object/sp-item-update-cns.cpp
new file mode 100644
index 0000000..516fb67
--- /dev/null
+++ b/src/object/sp-item-update-cns.cpp
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** @file
+ * TODO: insert short description here
+ *//*
+ * Authors: see git history
+ *
+ * Copyright (C) 2018 Authors
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <vector>
+#include "satisfied-guide-cns.h"
+
+#include "sp-item-update-cns.h"
+#include "sp-guide.h"
+
+void sp_item_update_cns(SPItem &item, SPDesktop const &desktop)
+{
+    std::vector<Inkscape::SnapCandidatePoint> snappoints;
+    item.getSnappoints(snappoints, nullptr);
+    /* TODO: Implement the ordering. */
+    std::vector<SPGuideConstraint> found_cns;
+    satisfied_guide_cns(desktop, snappoints, found_cns);
+    /* effic: It might be nice to avoid an n^2 algorithm, but in practice n will be
+       small enough that it's still usually more efficient. */
+
+    for (auto cn : found_cns)
+    {
+        if ( std::find(item.constraints.begin(),
+                  item.constraints.end(),
+                  cn)
+             == item.constraints.end() )
+        {
+            item.constraints.push_back(cn);
+            cn.g->attached_items.emplace_back(&item, cn.snappoint_ix);
+        }
+    }
+}
+
+
+/*
+  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 :