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+/* This file is part of the libdepixelize project
+ Copyright (C) 2013 Vinícius dos Santos Oliveira <vini.ipsmaker@gmail.com>
+
+ GNU Lesser General Public License Usage
+ This library is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by the
+ Free Software Foundation; either version 2.1 of the License, or (at your
+ option) any later version.
+ You should have received a copy of the GNU Lesser General Public License
+ along with this library. If not, see <http://www.gnu.org/licenses/>.
+
+ GNU General Public License Usage
+ Alternatively, this library may be used under the terms of the GNU General
+ Public License as published by the Free Software Foundation, either version
+ 2 of the License, or (at your option) any later version.
+ You should have received a copy of the GNU General Public License along with
+ this library. If not, see <http://www.gnu.org/licenses/>.
+
+ 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
+ Lesser General Public License for more details.
+*/
+
+#ifndef LIBDEPIXELIZE_TRACER_POINT_H
+#define LIBDEPIXELIZE_TRACER_POINT_H
+
+namespace Tracer {
+
+template<class T>
+struct Point
+{
+ Point() : smooth(false), visible(true) {}
+ Point(T x, T y) : smooth(false), visible(true), x(x), y(y) {}
+ Point(T x, T y, bool smooth) : smooth(smooth), visible(true), x(x), y(y) {}
+
+ Point operator+(const Point &rhs) const
+ {
+ return Point(x + rhs.x, y + rhs.y);
+ }
+
+ Point operator/(T foo) const
+ {
+ return Point(x / foo, y / foo);
+ }
+
+ Point invisible() const
+ {
+ Point p = *this;
+ p.visible = false;
+ return p;
+ }
+
+ bool smooth;
+
+ /**
+ * By default, all points are visible, but the poor amount of information
+ * that B-Splines (libdepixelize-specific) allows us to represent forces us
+ * to create additional points. But... these additional points don't need to
+ * be visible.
+ */
+ bool visible;
+
+ T x, y;
+};
+
+template<class T>
+Point<T> midpoint(const Point<T> &a, const Point<T> &b)
+{
+ return Point<T>((a.x + b.x) / 2, (a.y + b.y) / 2);
+}
+
+template<class T>
+bool operator==(const Point<T> &lhs, const Point<T> &rhs)
+{
+ return
+ /*
+ * Will make a better job identifying which points can be eliminated by
+ * cells union.
+ */
+#ifndef LIBDEPIXELIZE_IS_VERY_WELL_TESTED
+ lhs.smooth == rhs.smooth &&
+#endif // LIBDEPIXELIZE_IS_VERY_WELL_TESTED
+ lhs.x == rhs.x && lhs.y == rhs.y;
+}
+
+template<class T>
+bool weakly_equal(const Point<T> &a, const Point<T> &b)
+{
+ return a.x == b.x && a.y == b.y;
+}
+
+template<class T>
+Geom::Point to_geom_point(Point<T> p)
+{
+ return Geom::Point(p.x, p.y);
+}
+
+} // namespace Tracer
+
+#endif // LIBDEPIXELIZE_TRACER_POINT_H
+
+/*
+ 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:encoding=utf-8:textwidth=99 :