add 'r' (rotate) 's' (scale) options to SampleApp to test those matrix ops on

all slides

add beforeChild/afterChild methods for parents to wack the canvas before/after
it draws. These are called after the std child-view translate and clip, unlike
beforeChildren/afterChildren



git-svn-id: http://skia.googlecode.com/svn/trunk@324 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 8 insertions, 0 deletions

diff --git a/include/views/SkView.h b/include/views/SkView.h
index d5d89dfeed..050debaf45 100644
--- a/include/views/SkView.h
+++ b/include/views/SkView.h
@@ -296,8 +296,16 @@ protected:
         request, return true so the request will not continue to propogate to the parent.
     */
     virtual bool    handleInval(const SkRect&);
+    //! called once before all of the children are drawn (or clipped/translated)
     virtual SkCanvas* beforeChildren(SkCanvas* c) { return c; }
+    //! called once after all of the children are drawn (or clipped/translated)
     virtual void afterChildren(SkCanvas* orig) {}
+
+    //! called right before this child's onDraw is called
+    virtual void beforeChild(SkView* child, SkCanvas* canvas) {}
+    //! called right after this child's onDraw is called
+    virtual void afterChild(SkView* child, SkCanvas* canvas) {}
+
     /** Override this if you might handle the click
     */
     virtual Click*  onFindClickHandler(SkScalar x, SkScalar y);