Plumbing to propagate save & restore from SkCanvas down to GrContext & lower

http://codereview.appspot.com/6203067/



git-svn-id: http://skia.googlecode.com/svn/trunk@4034 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 16 insertions, 0 deletions

diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index f50728421a..af2e066b4f 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -700,6 +700,14 @@ int SkCanvas::internalSave(SaveFlags flags) {
     fClipStack.save();
     SkASSERT(fClipStack.getSaveCount() == this->getSaveCount() - 1);
 
+    for (DeviceCM* curLayer = fMCRec->fTopLayer; 
+         curLayer; 
+         curLayer = curLayer->fNext) {
+        if (NULL != curLayer->fDevice) {
+            curLayer->fDevice->postSave();
+        }
+    }
+
     return saveCount;
 }
 
@@ -870,6 +878,14 @@ void SkCanvas::restore() {
 void SkCanvas::internalRestore() {
     SkASSERT(fMCStack.count() != 0);
 
+    for (DeviceCM* curLayer = fMCRec->fTopLayer; 
+         curLayer; 
+         curLayer = curLayer->fNext) {
+        if (NULL != curLayer->fDevice) {
+            curLayer->fDevice->preRestore();
+        }
+    }
+
     fDeviceCMDirty = true;
     fLocalBoundsCompareTypeDirty = true;
     fLocalBoundsCompareTypeDirtyBW = true;