1 files changed, 48 insertions, 0 deletions
diff --git a/src/2geom/transforms.cpp b/src/2geom/transforms.cpp
new file mode 100644
index 000000000..8c0164338
--- /dev/null
+++ b/src/2geom/transforms.cpp
@@ -0,0 +1,48 @@
+#include "transforms.h"
+
+namespace Geom {
+
+Matrix operator*(Translate const &t, Scale const &s) {
+    Matrix ret(s);
+    ret[4] = t[X] * s[X];
+    ret[5] = t[Y] * s[Y];
+    return ret;
+}
+
+Matrix operator*(Translate const &t, Rotate const &r) {
+    Matrix ret(r);
+    ret.setTranslation(t.vec * ret);
+    return ret;
+}
+
+Matrix operator*(Scale const &s, Translate const &t) {
+    return Matrix(s[0], 0,
+                  0   , s[1],
+                  t[0], t[1]);
+}
+
+Matrix operator*(Scale const &s, Matrix const &m) {
+    Matrix ret(m);
+    ret[0] *= s[X];
+    ret[1] *= s[X];
+    ret[2] *= s[Y];
+    ret[3] *= s[Y];
+    return ret;
+}
+
+Matrix operator*(Matrix const &m, Translate const &t) {
+    Matrix ret(m);
+    ret[4] += t[X];
+    ret[5] += t[Y];
+    return ret;
+}
+
+Matrix operator*(Matrix const &m, Scale const &s) {
+    Matrix ret(m);
+    ret[0] *= s[X]; ret[1] *= s[Y];
+    ret[2] *= s[X]; ret[3] *= s[Y];
+    ret[4] *= s[X]; ret[5] *= s[Y];
+    return ret;
+}
+
+}