Utility to draw GAIA pictures

chrome/browser/profiles/profile_info_util.cc

+// Copyright (c) 2011 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 "chrome/browser/profiles/profile_info_util.h"
+
+#include "skia/ext/image_operations.h"
+#include "ui/gfx/canvas_skia.h"
+#include "ui/gfx/rect.h"
+
+namespace profiles {
+
+const int kAvatarIconWidth = 38;
+const int kAvatarIconHeight = 31;
+
+gfx::Image GetAvatarIconForMenu(const gfx::Image& image,
+                                bool is_gaia_picture) {
+  if (!is_gaia_picture)
+    return image;
+
+  int length = std::min(kAvatarIconWidth, kAvatarIconHeight) - 2;
+  SkBitmap bmp = skia::ImageOperations::Resize(
+      image, skia::ImageOperations::RESIZE_BEST, length, length);
+  gfx::CanvasSkia canvas(kAvatarIconWidth, kAvatarIconHeight, false);
+
+  // Draw the icon centered on the canvas.
+  int x = (kAvatarIconWidth - length) / 2;
+  int y = (kAvatarIconHeight - length) / 2;
+  canvas.DrawBitmapInt(bmp, x, y);
+
+  // Draw a gray border on the inside of the icon.
+  SkColor color = SkColorSetARGB(83, 0, 0, 0);
+  canvas.DrawRectInt(color, x, y, length - 1, length - 1);
+
+  return gfx::Image(new SkBitmap(canvas.ExtractBitmap()));
+}
+
+gfx::Image GetAvatarIconForTitleBar(const gfx::Image& image,
+                                    bool is_gaia_picture,
+                                    int dst_width,
+                                    int dst_height) {
+  if (!is_gaia_picture)
+    return image;
+
+  int length = std::min(std::min(kAvatarIconWidth, kAvatarIconHeight),
+      std::min(dst_width, dst_height)) - 2;
+  SkBitmap bmp = skia::ImageOperations::Resize(
+      image, skia::ImageOperations::RESIZE_BEST, length, length);
+  gfx::CanvasSkia canvas(dst_width, dst_height, false);
+
+  // Draw the icon on the bottom center of the canvas.
+  int x1 = (dst_width - length) / 2;
+  int x2 = x1 + length;
+  int y1 = dst_height - length - 1;
+  int y2 = y1 + length;
+  canvas.DrawBitmapInt(bmp, x1, y1);
+
+  // Give the icon an etched look by drawing a highlight on the bottom edge
+  // and a shadow on the remaining edges.
+  SkColor highlight_color = SkColorSetARGB(128, 255, 255, 255);
+  SkColor shadow_color = SkColorSetARGB(83, 0, 0, 0);
+  // Bottom highlight.
+  canvas.DrawLineInt(highlight_color, x1, y2 - 1, x2, y2 - 1);
+  // Top shadow.
+  canvas.DrawLineInt(shadow_color, x1, y1, x2, y1);
+  // Left shadow.
+  canvas.DrawLineInt(shadow_color, x1, y1 + 1, x1, y2 - 1);
+  // Right shadow.
+  canvas.DrawLineInt(shadow_color, x2 - 1, y1 + 1, x2 - 1, y2 - 1);
+
+  return gfx::Image(new SkBitmap(canvas.ExtractBitmap()));
+}
+
+} // namespace