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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 #include "views/border.h" | |
6 | |
7 #include "base/logging.h" | |
8 #include "ui/gfx/canvas.h" | |
9 | |
10 namespace views { | |
11 | |
12 namespace { | |
13 | |
14 // A simple border with a fixed thickness and single color. | |
15 class SolidBorder : public Border { | |
16 public: | |
17 SolidBorder(int thickness, SkColor color); | |
18 | |
19 virtual void Paint(const View& view, gfx::Canvas* canvas) const; | |
20 virtual void GetInsets(gfx::Insets* insets) const; | |
21 | |
22 private: | |
23 int thickness_; | |
24 SkColor color_; | |
25 gfx::Insets insets_; | |
26 | |
27 DISALLOW_COPY_AND_ASSIGN(SolidBorder); | |
28 }; | |
29 | |
30 SolidBorder::SolidBorder(int thickness, SkColor color) | |
31 : thickness_(thickness), | |
32 color_(color), | |
33 insets_(thickness, thickness, thickness, thickness) { | |
34 } | |
35 | |
36 void SolidBorder::Paint(const View& view, gfx::Canvas* canvas) const { | |
37 // Top border. | |
38 canvas->FillRect(color_, gfx::Rect(0, 0, view.width(), insets_.top())); | |
39 // Left border. | |
40 canvas->FillRect(color_, gfx::Rect(0, 0, insets_.left(), view.height())); | |
41 // Bottom border. | |
42 canvas->FillRect(color_, gfx::Rect(0, view.height() - insets_.bottom(), | |
43 view.width(), insets_.bottom())); | |
44 // Right border. | |
45 canvas->FillRect(color_, gfx::Rect(view.width() - insets_.right(), 0, | |
46 insets_.right(), view.height())); | |
47 } | |
48 | |
49 void SolidBorder::GetInsets(gfx::Insets* insets) const { | |
50 DCHECK(insets); | |
51 insets->Set(insets_.top(), insets_.left(), insets_.bottom(), insets_.right()); | |
52 } | |
53 | |
54 class EmptyBorder : public Border { | |
55 public: | |
56 EmptyBorder(int top, int left, int bottom, int right) | |
57 : top_(top), left_(left), bottom_(bottom), right_(right) {} | |
58 | |
59 virtual void Paint(const View& view, gfx::Canvas* canvas) const {} | |
60 | |
61 virtual void GetInsets(gfx::Insets* insets) const { | |
62 DCHECK(insets); | |
63 insets->Set(top_, left_, bottom_, right_); | |
64 } | |
65 | |
66 private: | |
67 int top_; | |
68 int left_; | |
69 int bottom_; | |
70 int right_; | |
71 | |
72 DISALLOW_COPY_AND_ASSIGN(EmptyBorder); | |
73 }; | |
74 } | |
75 | |
76 Border::Border() { | |
77 } | |
78 | |
79 Border::~Border() { | |
80 } | |
81 | |
82 // static | |
83 Border* Border::CreateSolidBorder(int thickness, SkColor color) { | |
84 return new SolidBorder(thickness, color); | |
85 } | |
86 | |
87 // static | |
88 Border* Border::CreateEmptyBorder(int top, int left, int bottom, int right) { | |
89 return new EmptyBorder(top, left, bottom, right); | |
90 } | |
91 | |
92 } // namespace views | |
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