Upstream version 10.39.225.0

[platform/framework/web/crosswalk.git] / src / ui / base / cursor / cursor_util.cc

diff --git a/src/ui/base/cursor/cursor_util.cc b/src/ui/base/cursor/cursor_util.cc
index a17d944..bddb1bc 100644 (file)
--- a/src/ui/base/cursor/cursor_util.cc
+++ b/src/ui/base/cursor/cursor_util.cc
@@ -6,6 +6,8 @@
 
 #include "base/logging.h"
 #include "skia/ext/image_operations.h"
+#include "ui/base/resource/resource_bundle.h"
+#include "ui/gfx/image/image_skia.h"
 #include "ui/gfx/point_conversions.h"
 #include "ui/gfx/size_conversions.h"
 #include "ui/gfx/skbitmap_operations.h"
@@ -57,4 +59,52 @@ void ScaleAndRotateCursorBitmapAndHotpoint(float scale,
   *hotpoint = gfx::ToFlooredPoint(gfx::ScalePoint(*hotpoint, scale));
 }
 
+void GetImageCursorBitmap(int resource_id,
+                          float scale,
+                          gfx::Display::Rotation rotation,
+                          gfx::Point* hotspot,
+                          SkBitmap* bitmap) {
+  const gfx::ImageSkia* image =
+      ResourceBundle::GetSharedInstance().GetImageSkiaNamed(resource_id);
+  const gfx::ImageSkiaRep& image_rep = image->GetRepresentation(scale);
+  // TODO(oshima): The cursor should use resource scale factor when
+  // fractional scale factor is enabled. crbug.com/372212
+  (*bitmap) = image_rep.sk_bitmap();
+  ScaleAndRotateCursorBitmapAndHotpoint(
+      scale / image_rep.scale(), rotation, bitmap, hotspot);
+  // |image_rep| is owned by the resource bundle. So we do not need to free it.
+}
+
+void GetAnimatedCursorBitmaps(int resource_id,
+                              float scale,
+                              gfx::Display::Rotation rotation,
+                              gfx::Point* hotspot,
+                              std::vector<SkBitmap>* bitmaps) {
+  // TODO(oshima|tdanderson): Support rotation and fractional scale factor.
+  const gfx::ImageSkia* image =
+      ResourceBundle::GetSharedInstance().GetImageSkiaNamed(resource_id);
+  const gfx::ImageSkiaRep& image_rep = image->GetRepresentation(scale);
+  SkBitmap bitmap = image_rep.sk_bitmap();
+  int frame_width = bitmap.height();
+  int frame_height = frame_width;
+  int total_width = bitmap.width();
+  DCHECK_EQ(total_width % frame_width, 0);
+  int frame_count = total_width / frame_width;
+  DCHECK_GT(frame_count, 0);
+
+  bitmaps->resize(frame_count);
+
+  for (int frame = 0; frame < frame_count; ++frame) {
+    int x_offset = frame_width * frame;
+    DCHECK_LE(x_offset + frame_width, total_width);
+
+    SkBitmap cropped = SkBitmapOperations::CreateTiledBitmap(
+        bitmap, x_offset, 0, frame_width, frame_height);
+    DCHECK_EQ(frame_width, cropped.width());
+    DCHECK_EQ(frame_height, cropped.height());
+
+    (*bitmaps)[frame] = cropped;
+  }
+}
+
 }  // namespace ui