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1 // Copyright (c) 2011 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 VIEWS_BORDER_H_ | |
6 #define VIEWS_BORDER_H_ | |
7 #pragma once | |
8 | |
9 #include "third_party/skia/include/core/SkColor.h" | |
10 #include "ui/gfx/insets.h" | |
11 #include "ui/views/view.h" | |
12 | |
13 namespace gfx{ | |
14 class Canvas; | |
15 } | |
16 | |
17 namespace views { | |
18 | |
19 class View; | |
20 | |
21 //////////////////////////////////////////////////////////////////////////////// | |
22 // | |
23 // Border class. | |
24 // | |
25 // The border class is used to display a border around a view. | |
26 // To set a border on a view, just call SetBorder on the view, for example: | |
27 // view->set_border(Border::CreateSolidBorder(1, SkColorSetRGB(25, 25, 112)); | |
28 // Once set on a view, the border is owned by the view. | |
29 // | |
30 // IMPORTANT NOTE: not all views support borders at this point. In order to | |
31 // support the border, views should make sure to use bounds excluding the | |
32 // border (by calling View::GetLocalBoundsExcludingBorder) when doing layout and | |
33 // painting. | |
34 // | |
35 //////////////////////////////////////////////////////////////////////////////// | |
36 | |
37 class VIEWS_EXPORT Border { | |
38 public: | |
39 Border(); | |
40 virtual ~Border(); | |
41 | |
42 // Creates a border that is a simple line of the specified thickness and | |
43 // color. | |
44 static Border* CreateSolidBorder(int thickness, SkColor color); | |
45 | |
46 // Creates a border for reserving space. The returned border does not | |
47 // paint anything. | |
48 static Border* CreateEmptyBorder(int top, int left, int bottom, int right); | |
49 | |
50 // Renders the border for the specified view. | |
51 virtual void Paint(const View& view, gfx::Canvas* canvas) const = 0; | |
52 | |
53 // Sets the specified insets to the the border insets. | |
54 virtual void GetInsets(gfx::Insets* insets) const = 0; | |
55 | |
56 private: | |
57 DISALLOW_COPY_AND_ASSIGN(Border); | |
58 }; | |
59 | |
60 } // namespace views | |
61 | |
62 #endif // VIEWS_BORDER_H_ | |
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