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.
5 #ifndef UI_NATIVE_THEME_NATIVE_THEME_H_
6 #define UI_NATIVE_THEME_NATIVE_THEME_H_
8 #include "third_party/skia/include/core/SkColor.h"
9 #include "ui/gfx/native_widget_types.h"
10 #include "ui/native_theme/native_theme_export.h"
21 // This class supports drawing UI controls (like buttons, text fields, lists,
22 // comboboxes, etc) that look like the native UI controls of the underlying
23 // platform, such as Windows or Linux. It also supplies default colors for
24 // dialog box backgrounds, etc., which are obtained from the system theme where
27 // The supported control types are listed in the Part enum. These parts can be
28 // in any state given by the State enum, where the actual definition of the
29 // state is part-specific. The supported colors are listed in the ColorId enum.
31 // Some parts require more information than simply the state in order to be
32 // drawn correctly, and this information is given to the Paint() method via the
33 // ExtraParams union. Each part that requires more information has its own
34 // field in the union.
36 // NativeTheme also supports getting the default size of a given part with
37 // the GetPartSize() method.
38 class NATIVE_THEME_EXPORT NativeTheme {
40 // The part to be painted / sized.
56 // The order of the arrow enums is important, do not change without also
57 // changing the code in platform implementations.
63 kScrollbarHorizontalThumb,
64 kScrollbarVerticalThumb,
65 kScrollbarHorizontalTrack,
66 kScrollbarVerticalTrack,
67 kScrollbarHorizontalGripper,
68 kScrollbarVerticalGripper,
79 // The state of the part.
88 // Each structure below holds extra information needed when painting a given
91 struct ButtonExtraParams {
93 bool indeterminate; // Whether the button state is indeterminate.
94 bool is_default; // Whether the button is default button.
97 int classic_state; // Used on Windows when uxtheme is not available.
98 SkColor background_color;
101 struct InnerSpinButtonExtraParams {
104 int classic_state; // Used on Windows when uxtheme is not available.
107 struct MenuArrowExtraParams {
109 // Used for the disabled state to indicate if the item is both disabled and
114 struct MenuCheckExtraParams {
116 // Used for the disabled state to indicate if the item is both disabled and
121 struct MenuItemExtraParams {
125 struct MenuListExtraParams {
127 bool has_border_radius;
130 SkColor background_color;
131 int classic_state; // Used on Windows when uxtheme is not available.
134 struct MenuSeparatorExtraParams {
138 struct MenuBackgroundExtraParams {
142 struct ProgressBarExtraParams {
143 double animated_seconds;
147 int value_rect_width;
148 int value_rect_height;
151 struct ScrollbarArrowExtraParams {
155 struct ScrollbarTrackExtraParams {
161 int classic_state; // Used on Windows when uxtheme is not available.
164 struct ScrollbarThumbExtraParams {
168 struct SliderExtraParams {
173 struct TextFieldExtraParams {
176 SkColor background_color;
179 bool fill_content_area;
181 int classic_state; // Used on Windows when uxtheme is not available.
184 struct TrackbarExtraParams {
186 int classic_state; // Used on Windows when uxtheme is not available.
190 ButtonExtraParams button;
191 InnerSpinButtonExtraParams inner_spin;
192 MenuArrowExtraParams menu_arrow;
193 MenuCheckExtraParams menu_check;
194 MenuItemExtraParams menu_item;
195 MenuListExtraParams menu_list;
196 MenuSeparatorExtraParams menu_separator;
197 MenuBackgroundExtraParams menu_background;
198 ProgressBarExtraParams progress_bar;
199 ScrollbarArrowExtraParams scrollbar_arrow;
200 ScrollbarTrackExtraParams scrollbar_track;
201 ScrollbarThumbExtraParams scrollbar_thumb;
202 SliderExtraParams slider;
203 TextFieldExtraParams text_field;
204 TrackbarExtraParams trackbar;
207 // Return the size of the part.
208 virtual gfx::Size GetPartSize(Part part,
210 const ExtraParams& extra) const = 0;
212 // Paint the part to the canvas.
213 virtual void Paint(SkCanvas* canvas,
216 const gfx::Rect& rect,
217 const ExtraParams& extra) const = 0;
219 // Supports theme specific colors.
220 void SetScrollbarColors(unsigned inactive_color,
221 unsigned active_color,
222 unsigned track_color);
224 // Colors for GetSystemColor().
227 kColorId_WindowBackground,
229 kColorId_DialogBackground,
231 kColorId_FocusedBorderColor,
232 kColorId_UnfocusedBorderColor,
234 kColorId_ButtonBackgroundColor,
235 kColorId_ButtonEnabledColor,
236 kColorId_ButtonDisabledColor,
237 kColorId_ButtonHighlightColor,
238 kColorId_ButtonHoverColor,
240 kColorId_EnabledMenuItemForegroundColor,
241 kColorId_DisabledMenuItemForegroundColor,
242 kColorId_SelectedMenuItemForegroundColor,
243 kColorId_FocusedMenuItemBackgroundColor,
244 kColorId_HoverMenuItemBackgroundColor,
245 kColorId_MenuSeparatorColor,
246 kColorId_MenuBackgroundColor,
247 kColorId_MenuBorderColor,
248 // MenuButton - buttons in wrench menu
249 kColorId_EnabledMenuButtonBorderColor,
250 kColorId_FocusedMenuButtonBorderColor,
251 kColorId_HoverMenuButtonBorderColor,
253 kColorId_LabelEnabledColor,
254 kColorId_LabelDisabledColor,
255 kColorId_LabelBackgroundColor,
257 kColorId_TextfieldDefaultColor,
258 kColorId_TextfieldDefaultBackground,
259 kColorId_TextfieldReadOnlyColor,
260 kColorId_TextfieldReadOnlyBackground,
261 kColorId_TextfieldSelectionColor,
262 kColorId_TextfieldSelectionBackgroundFocused,
264 kColorId_TreeBackground,
266 kColorId_TreeSelectedText,
267 kColorId_TreeSelectedTextUnfocused,
268 kColorId_TreeSelectionBackgroundFocused,
269 kColorId_TreeSelectionBackgroundUnfocused,
272 kColorId_TableBackground,
274 kColorId_TableSelectedText,
275 kColorId_TableSelectedTextUnfocused,
276 kColorId_TableSelectionBackgroundFocused,
277 kColorId_TableSelectionBackgroundUnfocused,
278 kColorId_TableGroupingIndicatorColor,
279 // TODO(benrg): move other hardcoded colors here.
282 // Return a color from the system theme.
283 virtual SkColor GetSystemColor(ColorId color_id) const = 0;
285 // Returns a shared instance of the native theme.
286 // The returned object should not be deleted by the caller. This function
287 // is not thread safe and should only be called from the UI thread.
288 // Each port of NativeTheme should provide its own implementation of this
289 // function, returning the port's subclass.
290 static NativeTheme* instance();
294 virtual ~NativeTheme();
296 unsigned int thumb_inactive_color_;
297 unsigned int thumb_active_color_;
298 unsigned int track_color_;
300 DISALLOW_COPY_AND_ASSIGN(NativeTheme);
305 #endif // UI_NATIVE_THEME_NATIVE_THEME_H_