summaryrefslogtreecommitdiffstats
path: root/src/live_effects/lpe-text_label.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/live_effects/lpe-text_label.cpp')
-rw-r--r--src/live_effects/lpe-text_label.cpp62
1 files changed, 62 insertions, 0 deletions
diff --git a/src/live_effects/lpe-text_label.cpp b/src/live_effects/lpe-text_label.cpp
new file mode 100644
index 0000000..aa50296
--- /dev/null
+++ b/src/live_effects/lpe-text_label.cpp
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/** \file
+ * LPE <text_label> implementation
+ */
+/*
+ * Authors:
+ * Maximilian Albert
+ * Johan Engelen
+ *
+ * Copyright (C) Maximilian Albert 2008 <maximilian.albert@gmail.com>
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "live_effects/lpe-text_label.h"
+
+// TODO due to internal breakage in glibmm headers, this must be last:
+#include <glibmm/i18n.h>
+
+namespace Inkscape {
+namespace LivePathEffect {
+
+LPETextLabel::LPETextLabel(LivePathEffectObject *lpeobject) :
+ Effect(lpeobject),
+ label(_("Label:"), _("Text label attached to the path"), "label", &wr, this, "This is a label")
+{
+ registerParameter(&label);
+}
+
+LPETextLabel::~LPETextLabel()
+= default;
+
+Geom::Piecewise<Geom::D2<Geom::SBasis> >
+LPETextLabel::doEffect_pwd2 (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & pwd2_in)
+{
+ using namespace Geom;
+
+ double t = (pwd2_in.cuts.front() + pwd2_in.cuts.back()) / 2;
+ Point pos(pwd2_in.valueAt(t));
+ Point dir(unit_vector(derivative(pwd2_in).valueAt(t)));
+ Point n(-rot90(dir) * 30);
+
+ double angle = angle_between(dir, Point(1,0));
+ label.setPos(pos + n);
+ label.setAnchor(std::sin(angle), -std::cos(angle));
+
+ return pwd2_in;
+}
+
+} //namespace LivePathEffect
+} /* namespace Inkscape */
+
+/*
+ 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 :