moving trunk for module inkscape

(bzr r1)

1 files changed, 88 insertions, 0 deletions

diff --git a/src/libnr/nr-point-ops.h b/src/libnr/nr-point-ops.h
new file mode 100644
index 000000000..03d61fb15
--- /dev/null
+++ b/src/libnr/nr-point-ops.h
@@ -0,0 +1,88 @@
+/* operator functions for NR::Point. */
+#ifndef SEEN_NR_POINT_OPS_H
+#define SEEN_NR_POINT_OPS_H
+
+#include <libnr/nr-point.h>
+
+namespace NR {
+
+inline Point operator+(Point const &a, Point const &b)
+{
+    Point ret;
+    for (int i = 0; i < 2; i++) {
+        ret[i] = a[i] + b[i];
+    }
+    return ret;
+}
+
+inline Point operator-(Point const &a, Point const &b)
+{
+    Point ret;
+    for (int i = 0; i < 2; i++) {
+        ret[i] = a[i] - b[i];
+    }
+    return ret;
+}
+
+/** This is a rotation (sort of). */
+inline Point operator^(Point const &a, Point const &b)
+{
+    Point const ret(a[0] * b[0] - a[1] * b[1],
+                    a[1] * b[0] + a[0] * b[1]);
+    return ret;
+}
+
+inline Point operator-(Point const &a)
+{
+    Point ret;
+    for(unsigned i = 0; i < 2; i++) {
+        ret[i] = -a[i];
+    }
+    return ret;
+}
+
+inline Point operator*(double const s, Point const &b)
+{
+    Point ret;
+    for(int i = 0; i < 2; i++) {
+        ret[i] = s * b[i];
+    }
+    return ret;
+}
+
+inline Point operator/(Point const &b, double const d)
+{
+    Point ret;
+    for(int i = 0; i < 2; i++) {
+        ret[i] = b[i] / d;
+    }
+    return ret;
+}
+
+
+inline bool operator==(Point const &a, Point const &b)
+{
+    return ( ( a[X] == b[X] ) && ( a[Y] == b[Y] ) );
+}
+
+inline bool operator!=(Point const &a, Point const &b)
+{
+    return ( ( a[X] != b[X] ) || ( a[Y] != b[Y] ) );
+}
+
+
+} /* namespace NR */
+
+
+#endif /* !SEEN_NR_POINT_OPS_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 :