add drawImageNine
this also exposes nine-patch drawing directly to devices, and creates a shared iterator for unrolling a nine-patch into single rect->rect draws.
BUG=skia:
Review URL: https://codereview.chromium.org/1211583003
diff --git a/src/utils/SkDeferredCanvas.cpp b/src/utils/SkDeferredCanvas.cpp
index ccf0b01..8e34235 100644
--- a/src/utils/SkDeferredCanvas.cpp
+++ b/src/utils/SkDeferredCanvas.cpp
@@ -229,6 +229,9 @@
void drawImageRect(const SkDraw&, const SkImage*, const SkRect*, const SkRect&,
const SkPaint&) override
{SkASSERT(0);}
+ void drawImageNine(const SkDraw&, const SkImage*, const SkIRect&, const SkRect&,
+ const SkPaint&) override
+ {SkASSERT(0);}
void drawText(const SkDraw&, const void* text, size_t len,
SkScalar x, SkScalar y, const SkPaint& paint) override
{SkASSERT(0);}
@@ -903,6 +906,19 @@
this->recordedDrawCommand();
}
+void SkDeferredCanvas::onDrawImageNine(const SkImage* image, const SkIRect& center,
+ const SkRect& dst, const SkPaint* paint) {
+ if (fDeferredDrawing &&
+ this->isFullFrame(&dst, paint) &&
+ isPaintOpaque(paint, image)) {
+ this->getDeferredDevice()->skipPendingCommands();
+ }
+
+ AutoImmediateDrawIfNeeded autoDraw(*this, image, paint);
+ this->drawingCanvas()->drawImageNine(image, center, dst, paint);
+ this->recordedDrawCommand();
+}
+
void SkDeferredCanvas::onDrawBitmapNine(const SkBitmap& bitmap,
const SkIRect& center, const SkRect& dst,
const SkPaint* paint) {