Add support for Radial Gradient Brush and Bitmap Brush to gfx::Canvas....

gfx/canvas_skia.cc

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "gfx/canvas_skia.h"
 
 #include <limits>
 
 #include "base/i18n/rtl.h"
 #include "base/logging.h"
 #include "gfx/font.h"
 #include "gfx/rect.h"
 #include "third_party/skia/include/effects/SkGradientShader.h"
 
 #if defined(OS_WIN)
 #include "gfx/canvas_skia_paint.h"
 #endif
 
 namespace {
 
+SkPoint PointToSkPoint(const gfx::Point point) {
+  SkPoint sk_point;
+  sk_point.set(SkIntToScalar(point.x()), SkIntToScalar(point.y()));
+  return sk_point;
+}
+
 SkShader::TileMode TileModeToSkShaderTileMode(gfx::Canvas::TileMode tile_mode) {
   switch (tile_mode) {
     case gfx::Canvas::TileMode_Clamp:
       return SkShader::kClamp_TileMode;
     case gfx::Canvas::TileMode_Mirror:
       return SkShader::kMirror_TileMode;
     case gfx::Canvas::TileMode_Repeat:
       return SkShader::kRepeat_TileMode;
     default:
       NOTREACHED() << "Invalid TileMode";
@@ skipping 326 matching lines @@
                          SkIntToScalar(start_point.y()));
   SkShader* shader = SkGradientShader::CreateLinear(
       boundary_points,
       colors,
       positions,
       position_count,
       TileModeToSkShaderTileMode(tile_mode));
   return new SkiaShader(shader);
 }
 
+Brush* CanvasSkia::CreateRadialGradientBrush(
+    const gfx::Point& center_point,
+    float radius,
+    const SkColor colors[],
+    const float positions[],
+    size_t position_count,
+    TileMode tile_mode) {
+  SkShader* shader = SkGradientShader::CreateRadial(
+      PointToSkPoint(center_point),
+      radius,
+      colors,
+      positions,
+      position_count,
+      TileModeToSkShaderTileMode(tile_mode));
+  return new SkiaShader(shader);
+}
+
+Brush* CanvasSkia::CreateBitmapBrush(
+    const SkBitmap& bitmap,
+    TileMode tile_mode_x,
+    TileMode tile_mode_y) {
+  SkShader* shader = SkShader::CreateBitmapShader(
+      bitmap,
+      TileModeToSkShaderTileMode(tile_mode_x),
+      TileModeToSkShaderTileMode(tile_mode_y));
+  return new SkiaShader(shader);
+}
+
 CanvasSkia* CanvasSkia::AsCanvasSkia() {
   return this;
 }
 
 const CanvasSkia* CanvasSkia::AsCanvasSkia() const {
   return this;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // CanvasSkia, private:
@@ skipping 39 matching lines @@
 
 CanvasPaint* CanvasPaint::CreateCanvasPaint(gfx::NativeView view) {
 #if defined(OS_WIN)
   return new CanvasPaintWin(view);
 #else
   return NULL;
 #endif
 }
 
 }  // namespace gfx