Fix cairo_path_extents to ignore lone cairo_move_to points.

Update the documentation as well.

1 files changed, 10 insertions, 1 deletions

diff --git a/src/cairo-path-bounds.c b/src/cairo-path-bounds.c
index f996977be..b945c4050 100644
--- a/src/cairo-path-bounds.c
+++ b/src/cairo-path-bounds.c
@@ -37,6 +37,8 @@
 #include "cairoint.h"
 
 typedef struct cairo_path_bounder {
+    cairo_point_t trailing_move_to_point;
+    int has_trailing_move_to;
     int has_point;
 
     cairo_fixed_t min_x;
@@ -105,7 +107,8 @@ _cairo_path_bounder_move_to (void *closure, cairo_point_t *point)
 {
     cairo_path_bounder_t *bounder = closure;
 
-    _cairo_path_bounder_add_point (bounder, point);
+    bounder->trailing_move_to_point = *point;
+    bounder->has_trailing_move_to = 1;
 
     return CAIRO_STATUS_SUCCESS;
 }
@@ -115,6 +118,12 @@ _cairo_path_bounder_line_to (void *closure, cairo_point_t *point)
 {
     cairo_path_bounder_t *bounder = closure;
 
+    if (bounder->has_trailing_move_to) {
+	_cairo_path_bounder_add_point (bounder,
+				       &bounder->trailing_move_to_point);
+	bounder->has_trailing_move_to = 0;
+    }
+
     _cairo_path_bounder_add_point (bounder, point);
 
     return CAIRO_STATUS_SUCCESS;