1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
|
// 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.
#include "ui/views/controls/button/checkbox.h"
#include "base/logging.h"
#include "ui/base/accessibility/accessible_view_state.h"
#include "ui/gfx/canvas.h"
#include "ui/views/controls/label.h"
namespace views {
const int kCheckboxLabelSpacing = 4;
// static
const char Checkbox::kViewClassName[] = "views/Checkbox";
////////////////////////////////////////////////////////////////////////////////
// Checkbox, public:
Checkbox::Checkbox(const string16& label)
: TextButtonBase(NULL, label),
checked_(false) {
set_border(new TextButtonNativeThemeBorder(this));
set_focusable(true);
}
Checkbox::~Checkbox() {
}
void Checkbox::SetChecked(bool checked) {
checked_ = checked;
SchedulePaint();
}
gfx::Size Checkbox::GetPreferredSize() {
gfx::Size prefsize(TextButtonBase::GetPreferredSize());
gfx::NativeTheme::ExtraParams extra;
gfx::NativeTheme::State state = GetThemeState(&extra);
gfx::Size size = gfx::NativeTheme::instance()->GetPartSize(GetThemePart(),
state,
extra);
prefsize.Enlarge(size.width(), 0);
prefsize.set_height(std::max(prefsize.height(), size.height()));
if (max_width_ > 0)
prefsize.set_width(std::min(max_width_, prefsize.width()));
return prefsize;
}
std::string Checkbox::GetClassName() const {
return kViewClassName;
}
void Checkbox::GetAccessibleState(ui::AccessibleViewState* state) {
TextButtonBase::GetAccessibleState(state);
state->role = ui::AccessibilityTypes::ROLE_CHECKBUTTON;
state->state = checked() ? ui::AccessibilityTypes::STATE_CHECKED : 0;
}
void Checkbox::OnPaintFocusBorder(gfx::Canvas* canvas) {
if (HasFocus() && (IsFocusable() || IsAccessibilityFocusableInRootView())) {
gfx::Rect bounds(GetTextBounds());
// Increate the bounding box by one on each side so that that focus border
// does not draw on top of the letters.
bounds.Inset(-1, -1, -1, -1);
canvas->DrawFocusRect(bounds);
}
}
void Checkbox::NotifyClick(const views::Event& event) {
SetChecked(!checked());
RequestFocus();
TextButtonBase::NotifyClick(event);
}
gfx::NativeTheme::Part Checkbox::GetThemePart() const {
return gfx::NativeTheme::kCheckbox;
}
gfx::Rect Checkbox::GetThemePaintRect() const {
gfx::NativeTheme::ExtraParams extra;
gfx::NativeTheme::State state = GetThemeState(&extra);
gfx::Size size(gfx::NativeTheme::instance()->GetPartSize(GetThemePart(),
state,
extra));
gfx::Insets insets = GetInsets();
int y_offset = (height() - size.height()) / 2;
gfx::Rect rect(insets.left(), y_offset, size.width(), size.height());
rect.set_x(GetMirroredXForRect(rect));
return rect;
}
void Checkbox::GetExtraParams(gfx::NativeTheme::ExtraParams* params) const {
TextButtonBase::GetExtraParams(params);
params->button.checked = checked_;
}
gfx::Rect Checkbox::GetTextBounds() const {
gfx::Rect bounds(TextButtonBase::GetTextBounds());
gfx::NativeTheme::ExtraParams extra;
gfx::NativeTheme::State state = GetThemeState(&extra);
gfx::Size size(gfx::NativeTheme::instance()->GetPartSize(GetThemePart(),
state,
extra));
bounds.Offset(size.width() + kCheckboxLabelSpacing, 0);
return bounds;
}
} // namespace views
|
