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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 "ui/views/controls/scrollbar/bitmap_scroll_bar.h" | 5 #include "ui/views/controls/scrollbar/bitmap_scroll_bar.h" |
| 6 | 6 |
| 7 #include "base/bind.h" | 7 #include "base/bind.h" |
| 8 #include "base/bind_helpers.h" | 8 #include "base/bind_helpers.h" |
| 9 #include "base/callback.h" | 9 #include "base/callback.h" |
| 10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
| 11 #include "base/message_loop.h" | 11 #include "base/message_loop.h" |
| 12 #include "base/string16.h" | 12 #include "base/string16.h" |
| 13 #include "base/utf_string_conversions.h" | 13 #include "base/utf_string_conversions.h" |
| 14 #include "build/build_config.h" | 14 #include "build/build_config.h" |
| 15 #include "grit/ui_strings.h" | 15 #include "grit/ui_strings.h" |
| 16 #include "third_party/skia/include/core/SkBitmap.h" | |
| 17 #include "ui/base/keycodes/keyboard_codes.h" | 16 #include "ui/base/keycodes/keyboard_codes.h" |
| 18 #include "ui/base/l10n/l10n_util.h" | 17 #include "ui/base/l10n/l10n_util.h" |
| 19 #include "ui/gfx/canvas.h" | 18 #include "ui/gfx/canvas.h" |
| 19 #include "ui/gfx/image/image_skia.h" |
| 20 #include "ui/views/controls/menu/menu.h" | 20 #include "ui/views/controls/menu/menu.h" |
| 21 #include "ui/views/controls/scroll_view.h" | 21 #include "ui/views/controls/scroll_view.h" |
| 22 #include "ui/views/controls/scrollbar/base_scroll_bar_thumb.h" | 22 #include "ui/views/controls/scrollbar/base_scroll_bar_thumb.h" |
| 23 #include "ui/views/widget/widget.h" | 23 #include "ui/views/widget/widget.h" |
| 24 | 24 |
| 25 #if defined(OS_LINUX) | 25 #if defined(OS_LINUX) |
| 26 #include "ui/views/screen.h" | 26 #include "ui/views/screen.h" |
| 27 #endif | 27 #endif |
| 28 | 28 |
| 29 #undef min | 29 #undef min |
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| 102 class BitmapScrollBarThumb : public BaseScrollBarThumb { | 102 class BitmapScrollBarThumb : public BaseScrollBarThumb { |
| 103 public: | 103 public: |
| 104 explicit BitmapScrollBarThumb(BitmapScrollBar* scroll_bar) | 104 explicit BitmapScrollBarThumb(BitmapScrollBar* scroll_bar) |
| 105 : BaseScrollBarThumb(scroll_bar), | 105 : BaseScrollBarThumb(scroll_bar), |
| 106 scroll_bar_(scroll_bar) { | 106 scroll_bar_(scroll_bar) { |
| 107 } | 107 } |
| 108 virtual ~BitmapScrollBarThumb() { } | 108 virtual ~BitmapScrollBarThumb() { } |
| 109 | 109 |
| 110 // View overrides: | 110 // View overrides: |
| 111 virtual gfx::Size GetPreferredSize() OVERRIDE { | 111 virtual gfx::Size GetPreferredSize() OVERRIDE { |
| 112 return gfx::Size(background_bitmap()->width(), | 112 return gfx::Size(background_image()->width(), |
| 113 start_cap_bitmap()->height() + | 113 start_cap_image()->height() + |
| 114 end_cap_bitmap()->height() + | 114 end_cap_image()->height() + |
| 115 grippy_bitmap()->height()); | 115 grippy_image()->height()); |
| 116 } | 116 } |
| 117 | 117 |
| 118 protected: | 118 protected: |
| 119 // View overrides: | 119 // View overrides: |
| 120 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE { | 120 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE { |
| 121 canvas->DrawBitmapInt(*start_cap_bitmap(), 0, 0); | 121 canvas->DrawBitmapInt(*start_cap_image(), 0, 0); |
| 122 int top_cap_height = start_cap_bitmap()->height(); | 122 int top_cap_height = start_cap_image()->height(); |
| 123 int bottom_cap_height = end_cap_bitmap()->height(); | 123 int bottom_cap_height = end_cap_image()->height(); |
| 124 int thumb_body_height = height() - top_cap_height - bottom_cap_height; | 124 int thumb_body_height = height() - top_cap_height - bottom_cap_height; |
| 125 canvas->TileImageInt(*background_bitmap(), 0, top_cap_height, | 125 canvas->TileImageInt(*background_image(), 0, top_cap_height, |
| 126 background_bitmap()->width(), thumb_body_height); | 126 background_image()->width(), thumb_body_height); |
| 127 canvas->DrawBitmapInt(*end_cap_bitmap(), 0, | 127 canvas->DrawBitmapInt(*end_cap_image(), 0, |
| 128 height() - bottom_cap_height); | 128 height() - bottom_cap_height); |
| 129 | 129 |
| 130 // Paint the grippy over the track. | 130 // Paint the grippy over the track. |
| 131 int grippy_x = (width() - grippy_bitmap()->width()) / 2; | 131 int grippy_x = (width() - grippy_image()->width()) / 2; |
| 132 int grippy_y = (thumb_body_height - grippy_bitmap()->height()) / 2; | 132 int grippy_y = (thumb_body_height - grippy_image()->height()) / 2; |
| 133 canvas->DrawBitmapInt(*grippy_bitmap(), grippy_x, grippy_y); | 133 canvas->DrawBitmapInt(*grippy_image(), grippy_x, grippy_y); |
| 134 } | 134 } |
| 135 | 135 |
| 136 private: | 136 private: |
| 137 // Returns the image rendered at the start of the thumb. | 137 // Returns the image rendered at the start of the thumb. |
| 138 gfx::ImageSkia* start_cap_bitmap() const { | 138 gfx::ImageSkia* start_cap_image() const { |
| 139 return scroll_bar_->images_[BitmapScrollBar::THUMB_START_CAP][GetState()]; | 139 return scroll_bar_->images_[BitmapScrollBar::THUMB_START_CAP][GetState()]; |
| 140 } | 140 } |
| 141 | 141 |
| 142 // Returns the image rendered at the end of the thumb. | 142 // Returns the image rendered at the end of the thumb. |
| 143 gfx::ImageSkia* end_cap_bitmap() const { | 143 gfx::ImageSkia* end_cap_image() const { |
| 144 return scroll_bar_->images_[BitmapScrollBar::THUMB_END_CAP][GetState()]; | 144 return scroll_bar_->images_[BitmapScrollBar::THUMB_END_CAP][GetState()]; |
| 145 } | 145 } |
| 146 | 146 |
| 147 // Returns the image that is tiled in the background of the thumb between | 147 // Returns the image that is tiled in the background of the thumb between |
| 148 // the start and the end caps. | 148 // the start and the end caps. |
| 149 gfx::ImageSkia* background_bitmap() const { | 149 gfx::ImageSkia* background_image() const { |
| 150 return scroll_bar_->images_[BitmapScrollBar::THUMB_MIDDLE][GetState()]; | 150 return scroll_bar_->images_[BitmapScrollBar::THUMB_MIDDLE][GetState()]; |
| 151 } | 151 } |
| 152 | 152 |
| 153 // Returns the image that is rendered in the middle of the thumb | 153 // Returns the image that is rendered in the middle of the thumb |
| 154 // transparently over the background bitmap. | 154 // transparently over the background image. |
| 155 gfx::ImageSkia* grippy_bitmap() const { | 155 gfx::ImageSkia* grippy_image() const { |
| 156 return scroll_bar_->images_[BitmapScrollBar::THUMB_GRIPPY] | 156 return scroll_bar_->images_[BitmapScrollBar::THUMB_GRIPPY] |
| 157 [CustomButton::BS_NORMAL]; | 157 [CustomButton::BS_NORMAL]; |
| 158 } | 158 } |
| 159 | 159 |
| 160 // The BitmapScrollBar that owns us. | 160 // The BitmapScrollBar that owns us. |
| 161 BitmapScrollBar* scroll_bar_; | 161 BitmapScrollBar* scroll_bar_; |
| 162 | 162 |
| 163 DISALLOW_COPY_AND_ASSIGN(BitmapScrollBarThumb); | 163 DISALLOW_COPY_AND_ASSIGN(BitmapScrollBarThumb); |
| 164 }; | 164 }; |
| 165 | 165 |
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| 258 next_button_->SetBounds(0, 0, 0, 0); | 258 next_button_->SetBounds(0, 0, 0, 0); |
| 259 } | 259 } |
| 260 | 260 |
| 261 BaseScrollBarThumb* thumb = GetThumb(); | 261 BaseScrollBarThumb* thumb = GetThumb(); |
| 262 // Size and place the thumb | 262 // Size and place the thumb |
| 263 gfx::Size thumb_prefsize = thumb->GetPreferredSize(); | 263 gfx::Size thumb_prefsize = thumb->GetPreferredSize(); |
| 264 gfx::Rect track_bounds = GetTrackBounds(); | 264 gfx::Rect track_bounds = GetTrackBounds(); |
| 265 | 265 |
| 266 // Preserve the height/width of the thumb (depending on orientation) as set | 266 // Preserve the height/width of the thumb (depending on orientation) as set |
| 267 // by the last call to |Update|, but coerce the width/height to be the | 267 // by the last call to |Update|, but coerce the width/height to be the |
| 268 // appropriate value for the bitmaps provided. | 268 // appropriate value for the images provided. |
| 269 if (IsHorizontal()) { | 269 if (IsHorizontal()) { |
| 270 thumb->SetBounds(thumb->x(), thumb->y(), thumb->width(), | 270 thumb->SetBounds(thumb->x(), thumb->y(), thumb->width(), |
| 271 thumb_prefsize.height()); | 271 thumb_prefsize.height()); |
| 272 } else { | 272 } else { |
| 273 thumb->SetBounds(thumb->x(), thumb->y(), thumb_prefsize.width(), | 273 thumb->SetBounds(thumb->x(), thumb->y(), thumb_prefsize.width(), |
| 274 thumb->height()); | 274 thumb->height()); |
| 275 } | 275 } |
| 276 | 276 |
| 277 // Hide the thumb if the track isn't tall enough to display even a tiny | 277 // Hide the thumb if the track isn't tall enough to display even a tiny |
| 278 // thumb. The user can only use the mousewheel, scroll buttons or keyboard | 278 // thumb. The user can only use the mousewheel, scroll buttons or keyboard |
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| 301 | 301 |
| 302 void BitmapScrollBar::ButtonPressed(Button* sender, const views::Event& event) { | 302 void BitmapScrollBar::ButtonPressed(Button* sender, const views::Event& event) { |
| 303 if (sender == prev_button_) { | 303 if (sender == prev_button_) { |
| 304 ScrollByAmount(SCROLL_PREV_LINE); | 304 ScrollByAmount(SCROLL_PREV_LINE); |
| 305 } else if (sender == next_button_) { | 305 } else if (sender == next_button_) { |
| 306 ScrollByAmount(SCROLL_NEXT_LINE); | 306 ScrollByAmount(SCROLL_NEXT_LINE); |
| 307 } | 307 } |
| 308 } | 308 } |
| 309 | 309 |
| 310 } // namespace views | 310 } // namespace views |
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