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// Copyright (c) 2011 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_GFX_NATIVE_THEME_BASE_H_
#define UI_GFX_NATIVE_THEME_BASE_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "skia/ext/platform_canvas.h"
#include "ui/gfx/native_theme.h"
namespace gfx {
class Rect;
class Size;
// Theme support for non-Windows toolkits.
class NativeThemeBase : public NativeTheme {
public:
// NativeTheme implementation:
virtual gfx::Size GetPartSize(Part part,
State state,
const ExtraParams& extra) const OVERRIDE;
virtual void Paint(SkCanvas* canvas,
Part part,
State state,
const gfx::Rect& rect,
const ExtraParams& extra) const OVERRIDE;
virtual SkColor GetSystemColor(ColorId color_id) const OVERRIDE;
protected:
NativeThemeBase();
virtual ~NativeThemeBase();
// Draw the arrow. Used by scrollbar and inner spin button.
virtual void PaintArrowButton(
SkCanvas* 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(
SkCanvas* canvas,
Part part,
State state,
const ScrollbarTrackExtraParams& extra_params,
const gfx::Rect& rect) const;
// Draw the scrollbar thumb over the track.
virtual void PaintScrollbarThumb(
SkCanvas* canvas,
Part part,
State state,
const gfx::Rect& rect) const;
virtual void PaintCheckbox(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const ButtonExtraParams& button) const;
virtual void PaintRadio(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const ButtonExtraParams& button) const;
virtual void PaintButton(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const ButtonExtraParams& button) const;
virtual void PaintTextField(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const TextFieldExtraParams& text) const;
virtual void PaintMenuList(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const MenuListExtraParams& menu_list) const;
virtual void PaintMenuPopupBackground(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const MenuListExtraParams& menu_list) const;
virtual void PaintMenuItemBackground(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const MenuListExtraParams& menu_list) const;
virtual void PaintSliderTrack(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const SliderExtraParams& slider) const;
virtual void PaintSliderThumb(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const SliderExtraParams& slider) const;
virtual void PaintInnerSpinButton(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const InnerSpinButtonExtraParams& spin_button) const;
virtual void PaintProgressBar(
SkCanvas* canvas,
State state,
const gfx::Rect& rect,
const ProgressBarExtraParams& progress_bar) const;
protected:
bool IntersectsClipRectInt(SkCanvas* canvas,
int x, int y, int w, int h) const;
void DrawBitmapInt(SkCanvas* canvas, const SkBitmap& bitmap,
int src_x, int src_y, int src_w, int src_h,
int dest_x, int dest_y, int dest_w, int dest_h) const;
void DrawTiledImage(SkCanvas* canvas,
const SkBitmap& bitmap,
int src_x, int src_y,
double tile_scale_x, double tile_scale_y,
int dest_x, int dest_y, int w, int h) const;
SkColor SaturateAndBrighten(SkScalar* hsv,
SkScalar saturate_amount,
SkScalar brighten_amount) const;
private:
void DrawVertLine(SkCanvas* canvas,
int x,
int y1,
int y2,
const SkPaint& paint) const;
void DrawHorizLine(SkCanvas* canvas,
int x1,
int x2,
int y,
const SkPaint& paint) const;
void DrawBox(SkCanvas* canvas,
const gfx::Rect& rect,
const SkPaint& paint) const;
SkScalar Clamp(SkScalar value,
SkScalar min,
SkScalar max) const;
SkColor OutlineColor(SkScalar* hsv1, SkScalar* hsv2) const;
static unsigned int scrollbar_width_;
static unsigned int button_length_;
DISALLOW_COPY_AND_ASSIGN(NativeThemeBase);
};
} // namespace gfx
#endif // UI_GFX_NATIVE_THEME_BASE_H_
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