Adds a new layer animation element which owns an interpolated transform. This allows more control over the interpolation, and in particular, it allows for a rotation about a pivot.

BUG=None
TEST=None


Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=127269

Review URL: http://codereview.chromium.org/9704070

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@127337 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 8 insertions, 2 deletions

diff --git a/ui/gfx/transform.h b/ui/gfx/transform.h
index 4f830d5..e56696e 100644
--- a/ui/gfx/transform.h
+++ b/ui/gfx/transform.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
@@ -39,6 +39,9 @@ class UI_EXPORT Transform {
   // Sets the rotation of the transformation.
   void SetRotate(float degree);
 
+  // Sets the rotation of the transform (about a vector).
+  void SetRotateAbout(const gfx::Point3f& point, float degree);
+
   // Sets the scaling parameters.
   void SetScaleX(float x);
   void SetScaleY(float y);
@@ -49,9 +52,12 @@ class UI_EXPORT Transform {
   void SetTranslateY(float y);
   void SetTranslate(float x, float y);
 
-  // Applies rotation on the current transformation.
+  // Applies a rotation on the current transformation.
   void ConcatRotate(float degree);
 
+  // Applies an axis-angle rotation on the current transformation.
+  void ConcatRotateAbout(const gfx::Point3f& point, float degree);
+
   // Applies scaling on current transform.
   void ConcatScale(float x, float y);