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_BASE_H_ 6 #define UI_NATIVE_THEME_NATIVE_THEME_BASE_H_ 7 8 #include "base/basictypes.h" 9 #include "base/compiler_specific.h" 10 #include "base/memory/scoped_ptr.h" 11 #include "skia/ext/platform_canvas.h" 12 #include "ui/native_theme/native_theme.h" 13 14 namespace gfx { 15 class Canvas; 16 class ImageSkia; 17 class Rect; 18 class Size; 19 } 20 21 namespace ui { 22 23 // Theme support for non-Windows toolkits. 24 class NATIVE_THEME_EXPORT NativeThemeBase : public NativeTheme { 25 public: 26 // NativeTheme implementation: 27 virtual gfx::Size GetPartSize(Part part, 28 State state, 29 const ExtraParams& extra) const OVERRIDE; 30 virtual void Paint(SkCanvas* canvas, 31 Part part, 32 State state, 33 const gfx::Rect& rect, 34 const ExtraParams& extra) const OVERRIDE; 35 36 virtual void PaintStateTransition(SkCanvas* canvas, 37 Part part, 38 State startState, 39 State endState, 40 double progress, 41 const gfx::Rect& rect) const OVERRIDE; 42 43 protected: 44 NativeThemeBase(); 45 virtual ~NativeThemeBase(); 46 47 // Draw the arrow. Used by scrollbar and inner spin button. 48 virtual void PaintArrowButton( 49 SkCanvas* gc, 50 const gfx::Rect& rect, 51 Part direction, 52 State state) const; 53 // Paint the scrollbar track. Done before the thumb so that it can contain 54 // alpha. 55 virtual void PaintScrollbarTrack( 56 SkCanvas* canvas, 57 Part part, 58 State state, 59 const ScrollbarTrackExtraParams& extra_params, 60 const gfx::Rect& rect) const; 61 // Draw the scrollbar thumb over the track. 62 virtual void PaintScrollbarThumb( 63 SkCanvas* canvas, 64 Part part, 65 State state, 66 const gfx::Rect& rect) const; 67 68 virtual void PaintScrollbarCorner(SkCanvas* canvas, 69 State state, 70 const gfx::Rect& rect) const; 71 72 virtual void PaintCheckbox( 73 SkCanvas* canvas, 74 State state, 75 const gfx::Rect& rect, 76 const ButtonExtraParams& button) const; 77 78 virtual void PaintRadio( 79 SkCanvas* canvas, 80 State state, 81 const gfx::Rect& rect, 82 const ButtonExtraParams& button) const; 83 84 virtual void PaintButton( 85 SkCanvas* canvas, 86 State state, 87 const gfx::Rect& rect, 88 const ButtonExtraParams& button) const; 89 90 virtual void PaintTextField( 91 SkCanvas* canvas, 92 State state, 93 const gfx::Rect& rect, 94 const TextFieldExtraParams& text) const; 95 96 virtual void PaintMenuList( 97 SkCanvas* canvas, 98 State state, 99 const gfx::Rect& rect, 100 const MenuListExtraParams& menu_list) const; 101 102 virtual void PaintMenuPopupBackground( 103 SkCanvas* canvas, 104 const gfx::Size& size, 105 const MenuBackgroundExtraParams& menu_background) const; 106 107 virtual void PaintMenuItemBackground( 108 SkCanvas* canvas, 109 State state, 110 const gfx::Rect& rect, 111 const MenuListExtraParams& menu_list) const; 112 113 virtual void PaintSliderTrack( 114 SkCanvas* canvas, 115 State state, 116 const gfx::Rect& rect, 117 const SliderExtraParams& slider) const; 118 119 virtual void PaintSliderThumb( 120 SkCanvas* canvas, 121 State state, 122 const gfx::Rect& rect, 123 const SliderExtraParams& slider) const; 124 125 virtual void PaintInnerSpinButton( 126 SkCanvas* canvas, 127 State state, 128 const gfx::Rect& rect, 129 const InnerSpinButtonExtraParams& spin_button) const; 130 131 virtual void PaintProgressBar( 132 SkCanvas* canvas, 133 State state, 134 const gfx::Rect& rect, 135 const ProgressBarExtraParams& progress_bar) const; 136 PaintScrollbarThumbStateTransition(SkCanvas * canvas,State startState,State endState,double progress,const gfx::Rect & rect)137 virtual void PaintScrollbarThumbStateTransition( 138 SkCanvas* canvas, 139 State startState, 140 State endState, 141 double progress, 142 const gfx::Rect& rect) const {} 143 set_scrollbar_button_length(unsigned int length)144 void set_scrollbar_button_length(unsigned int length) { 145 scrollbar_button_length_ = length; 146 } scrollbar_button_length()147 int scrollbar_button_length() const { return scrollbar_button_length_; } 148 149 bool IntersectsClipRectInt(SkCanvas* canvas, 150 int x, int y, int w, int h) const; 151 152 void DrawImageInt(SkCanvas* canvas, const gfx::ImageSkia& image, 153 int src_x, int src_y, int src_w, int src_h, 154 int dest_x, int dest_y, int dest_w, int dest_h) const; 155 156 void DrawTiledImage(SkCanvas* canvas, 157 const gfx::ImageSkia& image, 158 int src_x, int src_y, 159 float tile_scale_x, float tile_scale_y, 160 int dest_x, int dest_y, int w, int h) const; 161 162 SkColor SaturateAndBrighten(SkScalar* hsv, 163 SkScalar saturate_amount, 164 SkScalar brighten_amount) const; 165 166 // Paints the arrow used on the scrollbar and spinner. 167 void PaintArrow(SkCanvas* canvas, 168 const gfx::Rect& rect, 169 Part direction, 170 SkColor color) const; 171 172 // Returns the color used to draw the arrow. 173 SkColor GetArrowColor(State state) const; 174 175 private: 176 void DrawVertLine(SkCanvas* canvas, 177 int x, 178 int y1, 179 int y2, 180 const SkPaint& paint) const; 181 void DrawHorizLine(SkCanvas* canvas, 182 int x1, 183 int x2, 184 int y, 185 const SkPaint& paint) const; 186 void DrawBox(SkCanvas* canvas, 187 const gfx::Rect& rect, 188 const SkPaint& paint) const; 189 SkScalar Clamp(SkScalar value, 190 SkScalar min, 191 SkScalar max) const; 192 SkColor OutlineColor(SkScalar* hsv1, SkScalar* hsv2) const; 193 194 // Paint the common parts of the checkboxes and radio buttons. 195 // borderRadius specifies how rounded the corners should be. 196 SkRect PaintCheckboxRadioCommon( 197 SkCanvas* canvas, 198 State state, 199 const gfx::Rect& rect, 200 const SkScalar borderRadius) const; 201 202 unsigned int scrollbar_width_; 203 unsigned int scrollbar_button_length_; 204 205 DISALLOW_COPY_AND_ASSIGN(NativeThemeBase); 206 }; 207 208 } // namespace ui 209 210 #endif // UI_NATIVE_THEME_NATIVE_THEME_BASE_H_ 211