O2D: Add an API to set the pattern extension method.

TEST=pending: loaded O2D and verified the API functions
BUG=none

Review URL: http://codereview.chromium.org/6409019

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@73243 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 34 insertions, 3 deletions

diff --git a/o3d/core/cross/cairo/pattern.cc b/o3d/core/cross/cairo/pattern.cc
index d3362de..c387d12 100644
--- a/o3d/core/cross/cairo/pattern.cc
+++ b/o3d/core/cross/cairo/pattern.cc
@@ -84,7 +84,29 @@ void Pattern::SetAffineTransform(double xx,
   cairo_pattern_set_matrix(pattern_, &matrix);
 }
 
-void Pattern::set_filter(Filter filter) {
+void Pattern::set_extend(ExtendType extend) {
+  cairo_extend_t cairo_extend;
+  switch (extend) {
+    case NONE:
+      cairo_extend = CAIRO_EXTEND_NONE;
+      break;
+    case REPEAT:
+      cairo_extend = CAIRO_EXTEND_REPEAT;
+      break;
+    case REFLECT:
+      cairo_extend = CAIRO_EXTEND_REFLECT;
+      break;
+    case PAD:
+      cairo_extend = CAIRO_EXTEND_PAD;
+      break;
+    default:
+      DCHECK(false);
+      return;
+  }
+  cairo_pattern_set_extend(pattern_, cairo_extend);
+}
+
+void Pattern::set_filter(FilterType filter) {
   cairo_filter_t cairo_filter;
   switch (filter) {
     case FAST:
diff --git a/o3d/core/cross/cairo/pattern.h b/o3d/core/cross/cairo/pattern.h
index 6927ee22..ef8bda9 100644
--- a/o3d/core/cross/cairo/pattern.h
+++ b/o3d/core/cross/cairo/pattern.h
@@ -49,7 +49,14 @@ class Pattern : public ObjectBase {
  public:
   typedef SmartPointer<Pattern> Ref;
 
-  enum Filter {
+  enum ExtendType {
+    NONE,
+    REPEAT,
+    REFLECT,
+    PAD
+  };
+
+  enum FilterType {
     FAST,
     GOOD,
     BEST,
@@ -87,7 +94,9 @@ class Pattern : public ObjectBase {
                           double x0,
                           double y0);
 
-  void set_filter(Filter filter);
+  void set_extend(ExtendType extend);
+
+  void set_filter(FilterType filter);
 
  private:
   Pattern(ServiceLocator* service_locator, cairo_pattern_t* pattern);