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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "chrome/common/badge_util.h" | 5 #include "chrome/common/badge_util.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 #include "base/strings/utf_string_conversions.h" | 8 #include "base/strings/utf_string_conversions.h" |
9 #include "grit/ui_resources.h" | 9 #include "grit/ui_resources.h" |
10 #include "third_party/skia/include/core/SkPaint.h" | 10 #include "third_party/skia/include/core/SkPaint.h" |
11 #include "third_party/skia/include/core/SkTypeface.h" | 11 #include "third_party/skia/include/core/SkTypeface.h" |
12 #include "ui/base/resource/resource_bundle.h" | 12 #include "ui/base/resource/resource_bundle.h" |
13 #include "ui/gfx/canvas.h" | 13 #include "ui/gfx/canvas.h" |
14 #include "ui/gfx/font.h" | 14 #include "ui/gfx/font.h" |
15 #include "ui/gfx/rect.h" | 15 #include "ui/gfx/rect.h" |
16 #include "ui/gfx/size.h" | 16 #include "ui/gfx/size.h" |
17 | 17 |
18 namespace { | 18 namespace { |
19 | 19 |
20 // Different platforms need slightly different constants to look good. | 20 // Different platforms need slightly different constants to look good. |
21 #if defined(OS_LINUX) && !defined(TOOLKIT_VIEWS) | 21 #if defined(OS_CHROMEOS) |
Lei Zhang
2014/05/23 21:23:02
Can we restructure this?
#if defined(OS_WIN)
#eli
| |
22 const float kTextSize = 8.0; | |
23 const int kBottomMarginBrowserAction = 0; | |
24 const int kBottomMarginPageAction = 2; | |
25 const int kPadding = 2; | |
26 const int kTopTextPadding = 1; | |
27 #elif defined(OS_LINUX) | |
22 const float kTextSize = 9.0; | 28 const float kTextSize = 9.0; |
23 const int kBottomMarginBrowserAction = 0; | 29 const int kBottomMarginBrowserAction = 0; |
24 const int kBottomMarginPageAction = 2; | 30 const int kBottomMarginPageAction = 2; |
25 const int kPadding = 2; | 31 const int kPadding = 2; |
26 const int kTopTextPadding = 0; | 32 const int kTopTextPadding = 0; |
27 #elif defined(OS_LINUX) && defined(TOOLKIT_VIEWS) | |
28 const float kTextSize = 8.0; | |
29 const int kBottomMarginBrowserAction = 0; | |
30 const int kBottomMarginPageAction = 2; | |
31 const int kPadding = 2; | |
32 const int kTopTextPadding = 1; | |
33 #elif defined(OS_MACOSX) | 33 #elif defined(OS_MACOSX) |
34 const float kTextSize = 9.0; | 34 const float kTextSize = 9.0; |
35 const int kBottomMarginBrowserAction = 5; | 35 const int kBottomMarginBrowserAction = 5; |
36 const int kBottomMarginPageAction = 2; | 36 const int kBottomMarginPageAction = 2; |
37 const int kPadding = 2; | 37 const int kPadding = 2; |
38 const int kTopTextPadding = 0; | 38 const int kTopTextPadding = 0; |
39 #else | 39 #else |
40 const float kTextSize = 10; | 40 const float kTextSize = 10; |
41 const int kBottomMarginBrowserAction = 0; | 41 const int kBottomMarginBrowserAction = 0; |
42 const int kBottomMarginPageAction = 2; | 42 const int kBottomMarginPageAction = 2; |
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85 base_font.GetFontName().c_str(), SkTypeface::kNormal)); | 85 base_font.GetFontName().c_str(), SkTypeface::kNormal)); |
86 DCHECK(typeface); | 86 DCHECK(typeface); |
87 } | 87 } |
88 | 88 |
89 text_paint->setTypeface(typeface.get()); | 89 text_paint->setTypeface(typeface.get()); |
90 // |text_paint| adds its own ref. Release the ref from CreateFontName. | 90 // |text_paint| adds its own ref. Release the ref from CreateFontName. |
91 } | 91 } |
92 return text_paint; | 92 return text_paint; |
93 } | 93 } |
94 | 94 |
95 SkBitmap DrawBadgeIconOverlay(const SkBitmap& icon, | |
96 float font_size, | |
97 const base::string16& text, | |
98 const base::string16& fallback) { | |
99 const int kMinPadding = 1; | |
100 | |
101 // Calculate the proper style/text overlay to render on the badge. | |
102 SkPaint* paint = badge_util::GetBadgeTextPaintSingleton(); | |
103 paint->setTextSize(SkFloatToScalar(font_size)); | |
104 paint->setColor(SK_ColorWHITE); | |
105 | |
106 std::string badge_text = base::UTF16ToUTF8(text); | |
107 | |
108 // See if the text will fit - otherwise use a default. | |
109 SkScalar text_width = paint->measureText(badge_text.c_str(), | |
110 badge_text.size()); | |
111 | |
112 if (SkScalarRoundToInt(text_width) > (icon.width() - kMinPadding * 2)) { | |
113 // String is too large - use the alternate text. | |
114 badge_text = base::UTF16ToUTF8(fallback); | |
115 text_width = paint->measureText(badge_text.c_str(), badge_text.size()); | |
116 } | |
117 | |
118 // When centering the text, we need to make sure there are an equal number | |
119 // of pixels on each side as otherwise the text looks off-center. So if the | |
120 // padding would be uneven, clip one pixel off the right side. | |
121 int badge_width = icon.width(); | |
122 if ((SkScalarRoundToInt(text_width) % 1) != (badge_width % 1)) | |
123 badge_width--; | |
124 | |
125 // Render the badge bitmap and overlay into a canvas. | |
126 scoped_ptr<gfx::Canvas> canvas(new gfx::Canvas( | |
127 gfx::Size(badge_width, icon.height()), 1.0f, false)); | |
128 canvas->DrawImageInt(gfx::ImageSkia::CreateFrom1xBitmap(icon), 0, 0); | |
129 | |
130 // Draw the text overlay centered horizontally and vertically. Skia expects | |
131 // us to specify the lower left coordinate of the text box, which is why we | |
132 // add 'font_size - 1' to the height. | |
133 SkScalar x = (badge_width - text_width)/2; | |
134 SkScalar y = (icon.height() - font_size)/2 + font_size - 1; | |
135 canvas->sk_canvas()->drawText( | |
136 badge_text.c_str(), badge_text.size(), x, y, *paint); | |
137 | |
138 // Return the generated image. | |
139 return canvas->ExtractImageRep().sk_bitmap(); | |
140 } | |
141 | |
142 void PaintBadge(gfx::Canvas* canvas, | 95 void PaintBadge(gfx::Canvas* canvas, |
143 const gfx::Rect& bounds, | 96 const gfx::Rect& bounds, |
144 const std::string& text, | 97 const std::string& text, |
145 const SkColor& text_color_in, | 98 const SkColor& text_color_in, |
146 const SkColor& background_color_in, | 99 const SkColor& background_color_in, |
147 int icon_width, | 100 int icon_width, |
148 extensions::ActionInfo::Type action_type) { | 101 extensions::ActionInfo::Type action_type) { |
149 if (text.empty()) | 102 if (text.empty()) |
150 return; | 103 return; |
151 | 104 |
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220 canvas->sk_canvas()->drawText( | 173 canvas->sk_canvas()->drawText( |
221 text.c_str(), text.size(), | 174 text.c_str(), text.size(), |
222 SkFloatToScalar(rect.x() + | 175 SkFloatToScalar(rect.x() + |
223 static_cast<float>(rect.width() - text_width) / 2), | 176 static_cast<float>(rect.width() - text_width) / 2), |
224 SkFloatToScalar(rect.y() + kTextSize + kTopTextPadding), | 177 SkFloatToScalar(rect.y() + kTextSize + kTopTextPadding), |
225 *text_paint); | 178 *text_paint); |
226 canvas->Restore(); | 179 canvas->Restore(); |
227 } | 180 } |
228 | 181 |
229 } // namespace badge_util | 182 } // namespace badge_util |
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