1 files changed, 35 insertions, 0 deletions
diff --git a/tree/transform.c b/tree/transform.c
new file mode 100644
index 00000000..18910d6b
--- /dev/null
+++ b/tree/transform.c
@@ -0,0 +1,35 @@
+#include <fitz.h>
+
+fz_error *
+fz_newtransform(fz_node **nodep, fz_matrix m)
+{
+	fz_transform *node;
+
+	node = fz_malloc(sizeof (fz_transform));
+	if (!node)
+		return fz_outofmem;
+	*nodep = (fz_node*)node;
+
+	fz_initnode((fz_node*)node, FZ_NTRANSFORM);
+	node->child = nil;
+	node->m = m;
+
+	return nil;
+}
+
+void
+fz_freetransform(fz_transform *node)
+{
+	if (node->child)
+		fz_freenode(node->child);
+	fz_free(node);
+}
+
+fz_rect
+fz_boundtransform(fz_transform *node, fz_matrix ctm)
+{
+	if (!node->child)
+		return FZ_INFRECT;
+	return fz_boundnode(node->child, fz_concat(node->m, ctm));
+}
+