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.
4
5 #include "ui/views/border.h"
6
7 #include "base/logging.h"
8 #include "base/memory/scoped_ptr.h"
9 #include "ui/gfx/canvas.h"
10 #include "ui/views/painter.h"
11 #include "ui/views/view.h"
12
13 namespace views {
14
15 namespace {
16
17 // A simple border with different thicknesses on each side and single color.
18 class SidedSolidBorder : public Border {
19 public:
20 SidedSolidBorder(int top, int left, int bottom, int right, SkColor color);
21
22 // Overridden from Border:
23 virtual void Paint(const View& view, gfx::Canvas* canvas) OVERRIDE;
24 virtual gfx::Insets GetInsets() const OVERRIDE;
25 virtual gfx::Size GetMinimumSize() const OVERRIDE;
26
27 private:
28 const SkColor color_;
29 const gfx::Insets insets_;
30
31 DISALLOW_COPY_AND_ASSIGN(SidedSolidBorder);
32 };
33
SidedSolidBorder(int top,int left,int bottom,int right,SkColor color)34 SidedSolidBorder::SidedSolidBorder(int top,
35 int left,
36 int bottom,
37 int right,
38 SkColor color)
39 : color_(color),
40 insets_(top, left, bottom, right) {
41 }
42
Paint(const View & view,gfx::Canvas * canvas)43 void SidedSolidBorder::Paint(const View& view, gfx::Canvas* canvas) {
44 // Top border.
45 canvas->FillRect(gfx::Rect(0, 0, view.width(), insets_.top()), color_);
46 // Left border.
47 canvas->FillRect(gfx::Rect(0, 0, insets_.left(), view.height()), color_);
48 // Bottom border.
49 canvas->FillRect(gfx::Rect(0, view.height() - insets_.bottom(), view.width(),
50 insets_.bottom()), color_);
51 // Right border.
52 canvas->FillRect(gfx::Rect(view.width() - insets_.right(), 0, insets_.right(),
53 view.height()), color_);
54 }
55
GetInsets() const56 gfx::Insets SidedSolidBorder::GetInsets() const {
57 return insets_;
58 }
59
GetMinimumSize() const60 gfx::Size SidedSolidBorder::GetMinimumSize() const {
61 return gfx::Size(insets_.width(), insets_.height());
62 }
63
64 // A variation of SidedSolidBorder, where each side has the same thickness.
65 class SolidBorder : public SidedSolidBorder {
66 public:
SolidBorder(int thickness,SkColor color)67 SolidBorder(int thickness, SkColor color)
68 : SidedSolidBorder(thickness, thickness, thickness, thickness, color) {
69 }
70
71 private:
72 DISALLOW_COPY_AND_ASSIGN(SolidBorder);
73 };
74
75 class EmptyBorder : public Border {
76 public:
EmptyBorder(int top,int left,int bottom,int right)77 EmptyBorder(int top, int left, int bottom, int right)
78 : insets_(top, left, bottom, right) {}
79
80 // Overridden from Border:
Paint(const View & view,gfx::Canvas * canvas)81 virtual void Paint(const View& view, gfx::Canvas* canvas) OVERRIDE {}
82
GetInsets() const83 virtual gfx::Insets GetInsets() const OVERRIDE {
84 return insets_;
85 }
86
GetMinimumSize() const87 virtual gfx::Size GetMinimumSize() const OVERRIDE {
88 return gfx::Size();
89 }
90
91 private:
92 const gfx::Insets insets_;
93
94 DISALLOW_COPY_AND_ASSIGN(EmptyBorder);
95 };
96
97 class BorderPainter : public Border {
98 public:
BorderPainter(Painter * painter,const gfx::Insets & insets)99 explicit BorderPainter(Painter* painter, const gfx::Insets& insets)
100 : painter_(painter),
101 insets_(insets) {
102 DCHECK(painter);
103 }
104
~BorderPainter()105 virtual ~BorderPainter() {}
106
107 // Overridden from Border:
Paint(const View & view,gfx::Canvas * canvas)108 virtual void Paint(const View& view, gfx::Canvas* canvas) OVERRIDE {
109 Painter::PaintPainterAt(canvas, painter_.get(), view.GetLocalBounds());
110 }
111
GetInsets() const112 virtual gfx::Insets GetInsets() const OVERRIDE {
113 return insets_;
114 }
115
GetMinimumSize() const116 virtual gfx::Size GetMinimumSize() const OVERRIDE {
117 return painter_->GetMinimumSize();
118 }
119
120 private:
121 scoped_ptr<Painter> painter_;
122 const gfx::Insets insets_;
123
124 DISALLOW_COPY_AND_ASSIGN(BorderPainter);
125 };
126
127 } // namespace
128
Border()129 Border::Border() {
130 }
131
~Border()132 Border::~Border() {
133 }
134
135 // static
CreateSolidBorder(int thickness,SkColor color)136 Border* Border::CreateSolidBorder(int thickness, SkColor color) {
137 return new SolidBorder(thickness, color);
138 }
139
140 // static
CreateEmptyBorder(int top,int left,int bottom,int right)141 Border* Border::CreateEmptyBorder(int top, int left, int bottom, int right) {
142 return new EmptyBorder(top, left, bottom, right);
143 }
144
145 // static
CreateSolidSidedBorder(int top,int left,int bottom,int right,SkColor color)146 Border* Border::CreateSolidSidedBorder(int top,
147 int left,
148 int bottom,
149 int right,
150 SkColor color) {
151 return new SidedSolidBorder(top, left, bottom, right, color);
152 }
153
154 // static
CreateBorderPainter(Painter * painter,const gfx::Insets & insets)155 Border* Border::CreateBorderPainter(Painter* painter,
156 const gfx::Insets& insets) {
157 return new BorderPainter(painter, insets);
158 }
159
AsTextButtonBorder()160 TextButtonBorder* Border::AsTextButtonBorder() {
161 return NULL;
162 }
163
AsTextButtonBorder() const164 const TextButtonBorder* Border::AsTextButtonBorder() const {
165 return NULL;
166 }
167
168 } // namespace views
169