add getBounds() helper

git-svn-id: http://skia.googlecode.com/svn/trunk@3409 2bbb7eff-a529-9590-31e7-b0007b416f81

2 files changed, 13 insertions, 0 deletions

diff --git a/include/core/SkBitmap.h b/include/core/SkBitmap.h
index 57b80e5f82..36d7013397 100644
--- a/include/core/SkBitmap.h
+++ b/include/core/SkBitmap.h
@@ -218,6 +218,11 @@ public:
     static Sk64 ComputeSize64(Config, int width, int height);
     static size_t ComputeSize(Config, int width, int height);
 
+    /**
+     *  Return the bitmap's bounds [0, 0, width, height] as an SkRect
+     */
+    void getBounds(SkRect* bounds) const;
+
     /** Set the bitmap's config and dimensions. If rowBytes is 0, then
         ComputeRowBytes() is called to compute the optimal value. This resets
         any pixel/colortable ownership, just like reset().
diff --git a/src/core/SkBitmap.cpp b/src/core/SkBitmap.cpp
index 58d0bd868f..3d586e40da 100644
--- a/src/core/SkBitmap.cpp
+++ b/src/core/SkBitmap.cpp
@@ -252,6 +252,14 @@ size_t SkBitmap::ComputeSafeSize(Config config,
     return (safeSize.is32() ? safeSize.get32() : 0);
 }
 
+void SkBitmap::getBounds(SkRect* bounds) const {
+    SkASSERT(bounds);
+    bounds->set(0, 0,
+                SkIntToScalar(fWidth), SkIntToScalar(fHeight));
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
 void SkBitmap::setConfig(Config c, int width, int height, int rowBytes) {
     this->freePixels();