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
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
// Copyright (c) 2010 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 "views/controls/button/checkbox.h"
#include "base/logging.h"
#include "gfx/canvas.h"
#include "views/controls/label.h"
namespace views {
// static
const char Checkbox::kViewClassName[] = "views/Checkbox";
static const int kCheckboxLabelSpacing = 4;
static const int kLabelFocusPaddingHorizontal = 2;
static const int kLabelFocusPaddingVertical = 1;
////////////////////////////////////////////////////////////////////////////////
// Checkbox, public:
Checkbox::Checkbox() : NativeButton(NULL), checked_(false) {
Init(std::wstring());
}
Checkbox::Checkbox(const std::wstring& label)
: NativeButton(NULL, label),
checked_(false) {
Init(label);
}
Checkbox::~Checkbox() {
}
void Checkbox::SetMultiLine(bool multiline) {
label_->SetMultiLine(multiline);
PreferredSizeChanged();
}
void Checkbox::SetChecked(bool checked) {
if (checked_ == checked)
return;
checked_ = checked;
if (native_wrapper_)
native_wrapper_->UpdateChecked();
}
// static
int Checkbox::GetTextIndent() {
return NativeButtonWrapper::GetFixedWidth() + kCheckboxLabelSpacing;
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, View overrides:
gfx::Size Checkbox::GetPreferredSize() {
if (!native_wrapper_)
return gfx::Size();
gfx::Size prefsize = native_wrapper_->GetView()->GetPreferredSize();
if (native_wrapper_->UsesNativeLabel())
return prefsize;
prefsize.set_width(
prefsize.width() + kCheckboxLabelSpacing +
kLabelFocusPaddingHorizontal * 2);
gfx::Size label_prefsize = label_->GetPreferredSize();
prefsize.set_width(prefsize.width() + label_prefsize.width());
prefsize.set_height(
std::max(prefsize.height(),
label_prefsize.height() + kLabelFocusPaddingVertical * 2));
return prefsize;
}
int Checkbox::GetHeightForWidth(int w) {
if (!native_wrapper_)
return 0;
gfx::Size prefsize = native_wrapper_->GetView()->GetPreferredSize();
if (native_wrapper_->UsesNativeLabel())
return prefsize.height();
int width = prefsize.width() + kCheckboxLabelSpacing +
kLabelFocusPaddingHorizontal * 2;
return label_->GetHeightForWidth(std::max(prefsize.height(), w - width));
}
void Checkbox::Layout() {
if (!native_wrapper_)
return;
if (native_wrapper_->UsesNativeLabel()) {
label_->SetBounds(0, 0, 0, 0);
label_->SetVisible(false);
native_wrapper_->GetView()->SetBounds(0, 0, width(), height());
} else {
gfx::Size checkmark_prefsize =
native_wrapper_->GetView()->GetPreferredSize();
int label_x = checkmark_prefsize.width() + kCheckboxLabelSpacing +
kLabelFocusPaddingHorizontal;
label_->SetBounds(
label_x, 0, std::max(0, width() - label_x -
kLabelFocusPaddingHorizontal),
height());
int first_line_height = label_->font().GetHeight();
native_wrapper_->GetView()->SetBounds(
0, ((first_line_height - checkmark_prefsize.height()) / 2),
checkmark_prefsize.width(), checkmark_prefsize.height());
}
native_wrapper_->GetView()->Layout();
}
void Checkbox::SetEnabled(bool enabled) {
NativeButton::SetEnabled(enabled);
if (label_)
label_->SetEnabled(enabled);
}
void Checkbox::PaintFocusBorder(gfx::Canvas* canvas) {
// Our focus border is rendered by the label, so we don't do anything here.
}
View* Checkbox::GetViewForPoint(const gfx::Point& point) {
return GetViewForPoint(point, false);
}
View* Checkbox::GetViewForPoint(const gfx::Point& point,
bool can_create_floating) {
return GetLocalBounds(true).Contains(point) ? this : NULL;
}
void Checkbox::OnMouseEntered(const MouseEvent& e) {
native_wrapper_->SetPushed(HitTestLabel(e));
}
void Checkbox::OnMouseMoved(const MouseEvent& e) {
native_wrapper_->SetPushed(HitTestLabel(e));
}
void Checkbox::OnMouseExited(const MouseEvent& e) {
native_wrapper_->SetPushed(false);
}
bool Checkbox::OnMousePressed(const MouseEvent& e) {
native_wrapper_->SetPushed(HitTestLabel(e));
return true;
}
void Checkbox::OnMouseReleased(const MouseEvent& e, bool canceled) {
native_wrapper_->SetPushed(false);
if (!canceled && HitTestLabel(e)) {
SetChecked(!checked());
ButtonPressed();
}
}
bool Checkbox::OnMouseDragged(const MouseEvent& e) {
return false;
}
void Checkbox::WillGainFocus() {
label_->set_paint_as_focused(true);
}
void Checkbox::WillLoseFocus() {
label_->set_paint_as_focused(false);
}
bool Checkbox::GetAccessibleRole(AccessibilityTypes::Role* role) {
DCHECK(role);
*role = AccessibilityTypes::ROLE_CHECKBUTTON;
return true;
}
bool Checkbox::GetAccessibleState(AccessibilityTypes::State* state) {
DCHECK(state);
*state = checked() ? AccessibilityTypes::STATE_CHECKED : 0;
return true;
}
std::string Checkbox::GetClassName() const {
return kViewClassName;
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, NativeButton overrides:
NativeButtonWrapper* Checkbox::CreateWrapper() {
NativeButtonWrapper* native_wrapper =
NativeButtonWrapper::CreateCheckboxWrapper(this);
native_wrapper->UpdateLabel();
native_wrapper->UpdateChecked();
return native_wrapper;
}
void Checkbox::InitBorder() {
// No border, so we do nothing.
}
void Checkbox::SetLabel(const std::wstring& label) {
NativeButton::SetLabel(label);
if (!native_wrapper_->UsesNativeLabel())
label_->SetText(label);
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, protected:
bool Checkbox::HitTestLabel(const MouseEvent& e) {
gfx::Point tmp(e.location());
ConvertPointToView(this, label_, &tmp);
return label_->HitTest(tmp);
}
////////////////////////////////////////////////////////////////////////////////
// Checkbox, private:
void Checkbox::Init(const std::wstring& label_text) {
// Checkboxs don't need to enforce a minimum size.
set_ignore_minimum_size(true);
label_ = new Label(label_text);
label_->SetHasFocusBorder(true);
label_->SetHorizontalAlignment(Label::ALIGN_LEFT);
AddChildView(label_);
}
} // namespace views
|
