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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 UI_NATIVE_THEME_NATIVE_THEME_AURA_H_ | |
| 6 #define UI_NATIVE_THEME_NATIVE_THEME_AURA_H_ | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/compiler_specific.h" | |
| 10 #include "ui/native_theme/fallback_theme.h" | |
| 11 | |
| 12 namespace gfx { | |
| 13 class NineImagePainter; | |
| 14 } | |
| 15 | |
| 16 namespace ui { | |
| 17 | |
| 18 // Aura implementation of native theme support. | |
| 19 class NATIVE_THEME_EXPORT NativeThemeAura : public FallbackTheme { | |
| 20 public: | |
| 21 static NativeThemeAura* instance(); | |
| 22 | |
| 23 protected: | |
| 24 NativeThemeAura(); | |
| 25 virtual ~NativeThemeAura(); | |
| 26 | |
| 27 // Overridden from NativeThemeBase: | |
| 28 virtual void PaintMenuPopupBackground( | |
| 29 SkCanvas* canvas, | |
| 30 const gfx::Size& size, | |
| 31 const MenuBackgroundExtraParams& menu_background) const override; | |
| 32 virtual void PaintMenuItemBackground( | |
| 33 SkCanvas* canvas, | |
| 34 State state, | |
| 35 const gfx::Rect& rect, | |
| 36 const MenuListExtraParams& menu_list) const override; | |
| 37 virtual void PaintArrowButton(SkCanvas* gc, | |
| 38 const gfx::Rect& rect, | |
| 39 Part direction, | |
| 40 State state) const override; | |
| 41 virtual void PaintScrollbarTrack( | |
| 42 SkCanvas* sk_canvas, | |
| 43 Part part, | |
| 44 State state, | |
| 45 const ScrollbarTrackExtraParams& extra_params, | |
| 46 const gfx::Rect& rect) const override; | |
| 47 virtual void PaintScrollbarThumb(SkCanvas* sk_canvas, | |
| 48 Part part, | |
| 49 State state, | |
| 50 const gfx::Rect& rect) const override; | |
| 51 virtual void PaintScrollbarCorner(SkCanvas* canvas, | |
| 52 State state, | |
| 53 const gfx::Rect& rect) const override; | |
| 54 | |
| 55 virtual void PaintScrollbarThumbStateTransition(SkCanvas* canvas, | |
| 56 State startState, | |
| 57 State endState, | |
| 58 double progress, | |
| 59 const gfx::Rect& rect) const | |
| 60 override; | |
| 61 | |
| 62 // Returns the NineImagePainter used to paint the specified state, creating if | |
| 63 // necessary. If no image is provided for the specified state the normal state | |
| 64 // images are used. | |
| 65 gfx::NineImagePainter* GetOrCreatePainter( | |
| 66 const int image_ids[kNumStates][9], | |
| 67 State state, | |
| 68 scoped_ptr<gfx::NineImagePainter> painters[kNumStates]) const; | |
| 69 | |
| 70 // Paints |painter| into the canvas using |rect|. | |
| 71 void PaintPainter(gfx::NineImagePainter* painter, | |
| 72 SkCanvas* sk_canvas, | |
| 73 const gfx::Rect& rect) const; | |
| 74 | |
| 75 mutable scoped_ptr<gfx::NineImagePainter> scrollbar_track_painter_; | |
| 76 | |
| 77 mutable scoped_ptr<gfx::NineImagePainter> | |
| 78 scrollbar_thumb_painters_[kNumStates]; | |
| 79 | |
| 80 mutable scoped_ptr<gfx::NineImagePainter> | |
| 81 scrollbar_arrow_button_painters_[kNumStates]; | |
| 82 | |
| 83 private: | |
| 84 struct DualPainter { | |
| 85 // For overlay scrollbar thumbs, fill and stroke are controlled separately, | |
| 86 // and each state is achieved by painting with different opacity. This | |
| 87 // struct bundles information of painter generated using assets and alpha | |
| 88 // value associated with each state, so that a DualPainter for overlay | |
| 89 // scrollbar thumb would only need state as input to paint correctly. | |
| 90 DualPainter(scoped_ptr<gfx::NineImagePainter> fill_painter, | |
| 91 const uint8 fill_alphas[kNumStates], | |
| 92 scoped_ptr<gfx::NineImagePainter> stroke_painter, | |
| 93 const uint8 stroke_alphas[kNumStates]); | |
| 94 ~DualPainter(); | |
| 95 | |
| 96 scoped_ptr<gfx::NineImagePainter> fill_painter; | |
| 97 const uint8* const fill_alphas; | |
| 98 scoped_ptr<gfx::NineImagePainter> stroke_painter; | |
| 99 const uint8* const stroke_alphas; | |
| 100 }; | |
| 101 | |
| 102 // Returns DualPainter from specific fill and stroke, creating if necessary. | |
| 103 scoped_ptr<DualPainter> CreateDualPainter( | |
| 104 const int fill_image_ids[9], | |
| 105 const uint8 fill_alphas[kNumStates], | |
| 106 const int stroke_image_ids[9], | |
| 107 const uint8 stroke_alphas[kNumStates]) const; | |
| 108 | |
| 109 // Paints |dualPainter| into the canvas using |rect| and specific alpha. | |
| 110 void PaintDualPainter(DualPainter* dual_painter, | |
| 111 SkCanvas* sk_canvas, | |
| 112 const gfx::Rect& rect, | |
| 113 State state) const; | |
| 114 | |
| 115 void PaintDualPainterTransition(DualPainter* dual_painter, | |
| 116 SkCanvas* sk_canvas, | |
| 117 const gfx::Rect& rect, | |
| 118 State startState, | |
| 119 State endState, | |
| 120 double progress) const; | |
| 121 | |
| 122 mutable scoped_ptr<DualPainter> scrollbar_overlay_thumb_painter_; | |
| 123 | |
| 124 DISALLOW_COPY_AND_ASSIGN(NativeThemeAura); | |
| 125 }; | |
| 126 | |
| 127 } // namespace ui | |
| 128 | |
| 129 #endif // UI_NATIVE_THEME_NATIVE_THEME_AURA_H_ | |
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