| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef UI_NATIVE_THEME_NATIVE_THEME_BASE_H_ |
| #define UI_NATIVE_THEME_NATIVE_THEME_BASE_H_ |
| |
| #include <memory> |
| |
| #include "base/compiler_specific.h" |
| #include "base/gtest_prod_util.h" |
| #include "base/macros.h" |
| #include "cc/paint/paint_flags.h" |
| #include "ui/native_theme/native_theme.h" |
| |
| namespace gfx { |
| class Rect; |
| class Size; |
| } |
| |
| namespace ui { |
| |
| // Theme support for non-Windows toolkits. |
| class NATIVE_THEME_EXPORT NativeThemeBase : public NativeTheme { |
| public: |
| // NativeTheme implementation: |
| gfx::Size GetPartSize(Part part, |
| State state, |
| const ExtraParams& extra) const override; |
| void Paint(cc::PaintCanvas* canvas, |
| Part part, |
| State state, |
| const gfx::Rect& rect, |
| const ExtraParams& extra) const override; |
| |
| bool SupportsNinePatch(Part part) const override; |
| gfx::Size GetNinePatchCanvasSize(Part part) const override; |
| gfx::Rect GetNinePatchAperture(Part part) const override; |
| bool UsesHighContrastColors() const override; |
| |
| protected: |
| NativeThemeBase(); |
| ~NativeThemeBase() override; |
| |
| // Draw the arrow. Used by scrollbar and inner spin button. |
| virtual void PaintArrowButton(cc::PaintCanvas* gc, |
| const gfx::Rect& rect, |
| Part direction, |
| State state) const; |
| // Paint the scrollbar track. Done before the thumb so that it can contain |
| // alpha. |
| virtual void PaintScrollbarTrack( |
| cc::PaintCanvas* canvas, |
| Part part, |
| State state, |
| const ScrollbarTrackExtraParams& extra_params, |
| const gfx::Rect& rect) const; |
| // Draw the scrollbar thumb over the track. |
| virtual void PaintScrollbarThumb( |
| cc::PaintCanvas* canvas, |
| Part part, |
| State state, |
| const gfx::Rect& rect, |
| NativeTheme::ScrollbarOverlayColorTheme theme) const; |
| |
| virtual void PaintScrollbarCorner(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect) const; |
| |
| virtual void PaintCheckbox(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const ButtonExtraParams& button) const; |
| |
| virtual void PaintRadio(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const ButtonExtraParams& button) const; |
| |
| virtual void PaintButton(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const ButtonExtraParams& button) const; |
| |
| virtual void PaintTextField(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const TextFieldExtraParams& text) const; |
| |
| virtual void PaintMenuList(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const MenuListExtraParams& menu_list) const; |
| |
| virtual void PaintMenuPopupBackground( |
| cc::PaintCanvas* canvas, |
| const gfx::Size& size, |
| const MenuBackgroundExtraParams& menu_background) const; |
| |
| virtual void PaintMenuItemBackground( |
| cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const MenuItemExtraParams& menu_item) const; |
| |
| virtual void PaintMenuSeparator( |
| cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const MenuSeparatorExtraParams& menu_separator) const; |
| |
| virtual void PaintSliderTrack(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const SliderExtraParams& slider) const; |
| |
| virtual void PaintSliderThumb(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const SliderExtraParams& slider) const; |
| |
| virtual void PaintInnerSpinButton( |
| cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const InnerSpinButtonExtraParams& spin_button) const; |
| |
| virtual void PaintProgressBar( |
| cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const ProgressBarExtraParams& progress_bar) const; |
| |
| virtual void PaintFrameTopArea( |
| cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const FrameTopAreaExtraParams& frame_top_area) const; |
| |
| // Shrinks checkbox/radio button rect, if necessary, to make room for padding |
| // and drop shadow. |
| // TODO(mohsen): This is needed because checkboxes/radio buttons on Android |
| // have different padding from those on desktop Chrome. Get rid of this when |
| // crbug.com/530746 is resolved. |
| virtual void AdjustCheckboxRadioRectForPadding(SkRect* rect) const; |
| |
| void set_scrollbar_button_length(int length) { |
| scrollbar_button_length_ = length; |
| } |
| int scrollbar_button_length() const { return scrollbar_button_length_; } |
| |
| SkColor SaturateAndBrighten(SkScalar* hsv, |
| SkScalar saturate_amount, |
| SkScalar brighten_amount) const; |
| |
| // Paints the arrow used on the scrollbar and spinner. |
| void PaintArrow(cc::PaintCanvas* canvas, |
| const gfx::Rect& rect, |
| Part direction, |
| SkColor color) const; |
| |
| // Returns the color used to draw the arrow. |
| SkColor GetArrowColor(State state) const; |
| |
| int scrollbar_width_; |
| |
| private: |
| friend class NativeThemeAuraTest; |
| |
| SkPath PathForArrow(const gfx::Rect& rect, Part direction) const; |
| gfx::Rect BoundingRectForArrow(const gfx::Rect& rect) const; |
| |
| void DrawVertLine(cc::PaintCanvas* canvas, |
| int x, |
| int y1, |
| int y2, |
| const cc::PaintFlags& flags) const; |
| void DrawHorizLine(cc::PaintCanvas* canvas, |
| int x1, |
| int x2, |
| int y, |
| const cc::PaintFlags& flags) const; |
| void DrawBox(cc::PaintCanvas* canvas, |
| const gfx::Rect& rect, |
| const cc::PaintFlags& flags) const; |
| SkScalar Clamp(SkScalar value, |
| SkScalar min, |
| SkScalar max) const; |
| SkColor OutlineColor(SkScalar* hsv1, SkScalar* hsv2) const; |
| |
| // Paint the common parts of the checkboxes and radio buttons. |
| // borderRadius specifies how rounded the corners should be. |
| SkRect PaintCheckboxRadioCommon(cc::PaintCanvas* canvas, |
| State state, |
| const gfx::Rect& rect, |
| const SkScalar borderRadius) const; |
| |
| // The length of the arrow buttons, 0 means no buttons are drawn. |
| int scrollbar_button_length_; |
| |
| DISALLOW_COPY_AND_ASSIGN(NativeThemeBase); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_NATIVE_THEME_NATIVE_THEME_BASE_H_ |