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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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/overlay_scroll_bar.h" | 5 #include "ui/views/controls/scrollbar/overlay_scroll_bar.h" |
6 | 6 |
7 #include "third_party/skia/include/core/SkColor.h" | 7 #include "third_party/skia/include/core/SkColor.h" |
8 #include "third_party/skia/include/core/SkXfermode.h" | 8 #include "third_party/skia/include/core/SkXfermode.h" |
9 #include "ui/gfx/canvas.h" | 9 #include "ui/gfx/canvas.h" |
10 #include "ui/views/background.h" | 10 #include "ui/views/background.h" |
11 #include "ui/views/border.h" | 11 #include "ui/views/border.h" |
12 #include "ui/views/controls/scrollbar/base_scroll_bar_thumb.h" | 12 #include "ui/views/controls/scrollbar/base_scroll_bar_thumb.h" |
13 | 13 |
14 namespace views { | 14 namespace views { |
15 namespace { | 15 namespace { |
16 | 16 |
17 const int kScrollbarWidth = 10; | 17 const int kScrollbarWidth = 10; |
18 const int kThumbInsetInside = 3; | 18 const int kThumbInsetInside = 3; |
19 const int kThumbInsetFromEdge = 1; | 19 const int kThumbInsetFromEdge = 1; |
20 const int kThumbCornerRadius = 2; | 20 const int kThumbCornerRadius = 2; |
21 const int kThumbMinimumSize = kScrollbarWidth; | 21 const int kThumbMinimumSize = kScrollbarWidth; |
22 const int kThumbHoverAlpha = 128; | 22 const int kThumbHoverAlpha = 128; |
23 const int kThumbDefaultAlpha = 64; | 23 const int kThumbDefaultAlpha = 64; |
24 | 24 |
25 class OverlayScrollBarThumb : public BaseScrollBarThumb, | 25 class OverlayScrollBarThumb : public BaseScrollBarThumb, |
26 public ui::AnimationDelegate { | 26 public gfx::AnimationDelegate { |
27 public: | 27 public: |
28 explicit OverlayScrollBarThumb(BaseScrollBar* scroll_bar); | 28 explicit OverlayScrollBarThumb(BaseScrollBar* scroll_bar); |
29 virtual ~OverlayScrollBarThumb(); | 29 virtual ~OverlayScrollBarThumb(); |
30 | 30 |
31 protected: | 31 protected: |
32 // View overrides: | 32 // View overrides: |
33 virtual gfx::Size GetPreferredSize() OVERRIDE; | 33 virtual gfx::Size GetPreferredSize() OVERRIDE; |
34 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; | 34 virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE; |
35 | 35 |
36 // ui::AnimationDelegate overrides: | 36 // gfx::AnimationDelegate overrides: |
37 virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE; | 37 virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE; |
38 | 38 |
39 private: | 39 private: |
40 double animation_opacity_; | 40 double animation_opacity_; |
41 DISALLOW_COPY_AND_ASSIGN(OverlayScrollBarThumb); | 41 DISALLOW_COPY_AND_ASSIGN(OverlayScrollBarThumb); |
42 }; | 42 }; |
43 | 43 |
44 OverlayScrollBarThumb::OverlayScrollBarThumb(BaseScrollBar* scroll_bar) | 44 OverlayScrollBarThumb::OverlayScrollBarThumb(BaseScrollBar* scroll_bar) |
45 : BaseScrollBarThumb(scroll_bar), | 45 : BaseScrollBarThumb(scroll_bar), |
46 animation_opacity_(0.0) { | 46 animation_opacity_(0.0) { |
47 if (get_use_acceleration_when_possible()) { | 47 if (get_use_acceleration_when_possible()) { |
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70 // just display the deeper color. | 70 // just display the deeper color. |
71 alpha = kThumbHoverAlpha; | 71 alpha = kThumbHoverAlpha; |
72 } | 72 } |
73 | 73 |
74 paint.setStyle(SkPaint::kFill_Style); | 74 paint.setStyle(SkPaint::kFill_Style); |
75 paint.setColor(SkColorSetARGB(alpha, 0, 0, 0)); | 75 paint.setColor(SkColorSetARGB(alpha, 0, 0, 0)); |
76 canvas->DrawRoundRect(local_bounds, kThumbCornerRadius, paint); | 76 canvas->DrawRoundRect(local_bounds, kThumbCornerRadius, paint); |
77 } | 77 } |
78 | 78 |
79 void OverlayScrollBarThumb::AnimationProgressed( | 79 void OverlayScrollBarThumb::AnimationProgressed( |
80 const ui::Animation* animation) { | 80 const gfx::Animation* animation) { |
81 animation_opacity_ = animation->GetCurrentValue(); | 81 animation_opacity_ = animation->GetCurrentValue(); |
82 SchedulePaint(); | 82 SchedulePaint(); |
83 } | 83 } |
84 | 84 |
85 } // namespace | 85 } // namespace |
86 | 86 |
87 OverlayScrollBar::OverlayScrollBar(bool horizontal) | 87 OverlayScrollBar::OverlayScrollBar(bool horizontal) |
88 : BaseScrollBar(horizontal, new OverlayScrollBarThumb(this)), | 88 : BaseScrollBar(horizontal, new OverlayScrollBarThumb(this)), |
89 animation_(static_cast<OverlayScrollBarThumb*>(GetThumb())) { | 89 animation_(static_cast<OverlayScrollBarThumb*>(GetThumb())) { |
90 set_notify_enter_exit_on_child(true); | 90 set_notify_enter_exit_on_child(true); |
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154 thumb_bounds.set_y(thumb->y()); | 154 thumb_bounds.set_y(thumb->y()); |
155 thumb_bounds.set_height(thumb->height()); | 155 thumb_bounds.set_height(thumb->height()); |
156 } | 156 } |
157 thumb->SetBoundsRect(thumb_bounds); | 157 thumb->SetBoundsRect(thumb_bounds); |
158 } | 158 } |
159 | 159 |
160 void OverlayScrollBar::OnPaint(gfx::Canvas* canvas) { | 160 void OverlayScrollBar::OnPaint(gfx::Canvas* canvas) { |
161 } | 161 } |
162 | 162 |
163 } // namespace views | 163 } // namespace views |
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