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
|
// Copyright (c) 2006-2008 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 <string>
#include "chrome/views/decision.h"
#include "chrome/common/resource_bundle.h"
#include "chrome/views/label.h"
#include "chrome/views/grid_layout.h"
using namespace std;
namespace views {
static const int kPaddingEdge = 10;
static const int kSpacingInfoBottom = 20;
class Option : public View,
public NativeButton::Listener {
public:
Option(int command_id,
const std::wstring& description,
const std::wstring& action,
Controller* controller);
// NativeButton::Listener methods:
virtual void ButtonPressed(NativeButton* sender);
private:
int command_id_;
Controller* controller_;
};
Decision::Decision(const std::wstring& title,
const std::wstring& details,
Controller* controller)
: controller_(controller) {
// The main message.
title_label_ = new Label(title);
title_label_->SetFont(
ResourceBundle::GetSharedInstance().GetFont(ResourceBundle::LargeFont));
title_label_->SetHorizontalAlignment(Label::ALIGN_LEFT);
AddChildView(title_label_);
// The detailed description.
details_label_ = new Label(details);
details_label_->SetHorizontalAlignment(Label::ALIGN_LEFT);
details_label_->SetMultiLine(true);
AddChildView(details_label_);
}
void Decision::AppendOption(int command_id,
const std::wstring& description,
const std::wstring& action) {
Option* option = new Option(command_id, description, action, controller_);
options_.push_back(option);
AddChildView(option);
}
void Decision::ViewHierarchyChanged(bool is_add, View *parent, View *child) {
if (is_add && child == this) {
// Layout when this is added so that the buttons are laid out correctly.
Layout();
}
}
void Decision::Layout() {
gfx::Rect lb = GetLocalBounds(false);
// Resize for padding.
lb.Inset(kPaddingEdge, kPaddingEdge);
int width = lb.width();
gfx::Point position = lb.origin();
gfx::Size size = title_label_->GetPreferredSize();
title_label_->SetBounds(position.x(), position.y(), width, size.height());
position.set_y(position.y() + size.height() + kSpacingInfoBottom);
size.set_height(details_label_->GetHeightForWidth(width));
details_label_->SetBounds(position.x(), position.y(), width, size.height());
position.set_y(position.y() + size.height() + kSpacingInfoBottom);
for (std::vector<Option*>::const_iterator iter = options_.begin();
iter != options_.end(); ++iter) {
Option* option = *iter;
size = option->GetPreferredSize();
option->SetBounds(position.x(), position.y(), width, size.height());
option->Layout();
position.set_y(position.y() + size.height() + kSpacingInfoBottom);
}
}
gfx::Size Decision::GetPreferredSize() {
int width = 0;
int height = 0;
// We need to find the largest width from the title and the options, as the
// details label is multi-line and we need to known its width in order to
// compute its height.
gfx::Size size = title_label_->GetPreferredSize();
width = size.width();
height = size.height() + kSpacingInfoBottom;
for (std::vector<Option*>::const_iterator iter = options_.begin();
iter != options_.end(); ++iter) {
size = (*iter)->GetPreferredSize();
if (size.width() > width)
width = size.width();
height += size.height() + kSpacingInfoBottom;
}
// Now we can compute the details label height.
height += details_label_->GetHeightForWidth(width) + kSpacingInfoBottom;
return gfx::Size(width + 2 * kPaddingEdge, height + 2 * kPaddingEdge);
}
Option::Option(int command_id,
const std::wstring& description,
const std::wstring& action,
Controller* controller)
: command_id_(command_id),
controller_(controller) {
GridLayout* layout = new GridLayout(this);
SetLayoutManager(layout);
ColumnSet* columns = layout->AddColumnSet(0);
columns->AddColumn(GridLayout::FILL, GridLayout::CENTER,
1, GridLayout::USE_PREF, 0, 0);
columns->AddPaddingColumn(0, 10);
columns->AddColumn(GridLayout::TRAILING, GridLayout::CENTER,
0, GridLayout::USE_PREF, 0, 0);
layout->StartRow(0, 0);
Label* label = new Label(description);
label->SetHorizontalAlignment(Label::ALIGN_LEFT);
layout->AddView(label);
// A button to perform the action.
NativeButton* button = new NativeButton(action);
button->SetListener(this);
layout->AddView(button);
}
void Option::ButtonPressed(NativeButton* sender) {
controller_->ExecuteCommand(command_id_);
}
} // namespace views
|
