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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_COMMON_BADGE_UTIL_H_
      6 #define CHROME_COMMON_BADGE_UTIL_H_
      7 
      8 #include <string>
      9 
     10 #include "base/strings/string16.h"
     11 #include "chrome/common/extensions/api/extension_action/action_info.h"
     12 #include "third_party/skia/include/core/SkBitmap.h"
     13 
     14 class SkPaint;
     15 
     16 namespace gfx {
     17 class Canvas;
     18 class Rect;
     19 }
     20 
     21 // badge_util provides a set of helper routines for rendering dynamically
     22 // generated text overlays ("badges") on toolbar icons.
     23 namespace badge_util {
     24 
     25 // Helper routine that returns a singleton SkPaint object configured for
     26 // rendering badge overlay text (correct font, typeface, etc).
     27 SkPaint* GetBadgeTextPaintSingleton();
     28 
     29 // Given an |icon|, renders the |text| centered on the |icon|. If |text| is
     30 // too large to fit within the bounds of the image, the |fallback| string is
     31 // rendered instead (or nothing, if |fallback| is empty).
     32 SkBitmap DrawBadgeIconOverlay(const SkBitmap& icon,
     33                               float font_size_in_pixels,
     34                               const string16& text,
     35                               const string16& fallback);
     36 
     37 // Paints badge with specified parameters to |canvas|.
     38 void PaintBadge(gfx::Canvas* canvas,
     39                 const gfx::Rect& bounds,
     40                 const std::string& text,
     41                 const SkColor& text_color_in,
     42                 const SkColor& background_color_in,
     43                 int icon_width,
     44                 extensions::ActionInfo::Type action_type);
     45 
     46 }  // namespace badge_util;
     47 
     48 #endif  // CHROME_COMMON_BADGE_UTIL_H_
     49