grab from latest android



git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/animator/SkDrawTo.cpp b/src/animator/SkDrawTo.cpp
new file mode 100644
index 0000000..342f7d4
--- /dev/null
+++ b/src/animator/SkDrawTo.cpp
@@ -0,0 +1,64 @@
+/* libs/graphics/animator/SkDrawTo.cpp
+**
+** Copyright 2006, The Android Open Source Project
+**
+** Licensed under the Apache License, Version 2.0 (the "License"); 
+** you may not use this file except in compliance with the License. 
+** You may obtain a copy of the License at 
+**
+**     http://www.apache.org/licenses/LICENSE-2.0 
+**
+** Unless required by applicable law or agreed to in writing, software 
+** distributed under the License is distributed on an "AS IS" BASIS, 
+** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
+** See the License for the specific language governing permissions and 
+** limitations under the License.
+*/
+
+#include "SkDrawTo.h"
+#include "SkAnimateMaker.h"
+#include "SkCanvas.h"
+#include "SkDrawBitmap.h"
+
+#if SK_USE_CONDENSED_INFO == 0
+
+const SkMemberInfo SkDrawTo::fInfo[] = {
+    SK_MEMBER(drawOnce, Boolean),
+    SK_MEMBER(use, Bitmap)
+};
+
+#endif
+
+DEFINE_GET_MEMBER(SkDrawTo);
+
+SkDrawTo::SkDrawTo() : drawOnce(false), use(NULL), fDrawnOnce(false) {
+}
+
+#if 0
+SkDrawTo::~SkDrawTo() {
+    SkASSERT(0);
+}
+#endif
+
+bool SkDrawTo::draw(SkAnimateMaker& maker) {
+    if (fDrawnOnce)
+        return false;
+    SkCanvas canvas(use->fBitmap);
+    SkCanvas* save = maker.fCanvas;
+    maker.fCanvas = &canvas;
+    INHERITED::draw(maker);
+    maker.fCanvas = save;
+    fDrawnOnce = drawOnce;
+    return false;
+}
+
+#ifdef SK_DUMP_ENABLED
+void SkDrawTo::dump(SkAnimateMaker* maker) {
+    dumpBase(maker);
+    dumpAttrs(maker);
+    if (use)
+        SkDebugf("use=\"%s\" ", use->id);
+    dumpDrawables(maker);
+}
+#endif
+