add drawImageNine

src/core/SkDevice.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkColorFilter.h"
 #include "SkDevice.h"
 #include "SkDraw.h"
 #include "SkDrawFilter.h"
 #include "SkImage_Base.h"
 #include "SkMetaData.h"
+#include "SkNinePatchIter.h"
 #include "SkPatchUtils.h"
 #include "SkPathMeasure.h"
 #include "SkRasterClip.h"
 #include "SkRSXform.h"
 #include "SkShader.h"
 #include "SkTextBlob.h"
 #include "SkTextToPathIter.h"
 
 SkBaseDevice::SkBaseDevice(const SkSurfaceProps& surfaceProps)
     : fSurfaceProps(surfaceProps)
@@ skipping 130 matching lines @@
 
 void SkBaseDevice::drawImageRect(const SkDraw& draw, const SkImage* image, const SkRect* src,
                                  const SkRect& dst, const SkPaint& paint) {
     // Default impl : turns everything into raster bitmap
     SkBitmap bm;
     if (as_IB(image)->getROPixels(&bm)) {
         this->drawBitmapRect(draw, bm, src, dst, paint, SkCanvas::kNone_DrawBitmapRectFlag);
     }
 }
 
+void SkBaseDevice::drawImageNine(const SkDraw& draw, const SkImage* image, const SkIRect& center,
+                                 const SkRect& dst, const SkPaint& paint) {
+    SkNinePatchIter iter(image->width(), image->height(), center, dst);
+
+    SkRect srcR, dstR;
+    while (iter.next(&srcR, &dstR)) {
+        this->drawImageRect(draw, image, &srcR, dstR, paint);
+    }
+}
+
+void SkBaseDevice::drawBitmapNine(const SkDraw& draw, const SkBitmap& bitmap, const SkIRect& center,
+                                  const SkRect& dst, const SkPaint& paint) {
+    SkNinePatchIter iter(bitmap.width(), bitmap.height(), center, dst);
+    
+    SkRect srcR, dstR;
+    while (iter.next(&srcR, &dstR)) {
+        this->drawBitmapRect(draw, bitmap, &srcR, dstR, paint, SkCanvas::kNone_DrawBitmapRectFlag);
+    }
+}
+
 void SkBaseDevice::drawAtlas(const SkDraw& draw, const SkImage* atlas, const SkRSXform xform[],
                              const SkRect tex[], const SkColor colors[], int count,
                              SkXfermode::Mode mode, const SkPaint& paint) {
     SkPath path;
     path.setIsVolatile(true);
 
     for (int i = 0; i < count; ++i) {
         SkPoint quad[4];
         xform[i].toQuad(tex[i].width(), tex[i].height(), quad);
         
@@ skipping 212 matching lines @@
     if (kUnknown_SkPixelGeometry == fSurfaceProps.pixelGeometry()
         || this->onShouldDisableLCD(paint)) {
 
         flags &= ~SkPaint::kLCDRenderText_Flag;
         flags |= SkPaint::kGenA8FromLCD_Flag;
     }
 
     return flags;
 }