blob: 99bcd3c78b2a4a1a6a694cabefa77df43b1facf6 (
plain)
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
|
/*
ui/listview.cc
This file is part of the Osirion project and is distributed under
the terms of the GNU General Public License version 2
*/
#include "ui/listview.h"
namespace ui
{
ListView::ListView(Widget *parent) : Widget(parent)
{
set_label("listview");
set_border(true);
set_background(true);
listview_scroll = 0.0f;
listview_selecteditem = 0;
}
ListView::~ListView()
{
}
void ListView::set_scroll(float scroll)
{
listview_scroll = scroll;
if (listview_scroll < 0)
listview_scroll = 0;
// calculate maximal scroll size
float top = 0;
for (Children::iterator it = children().begin(); it != children().end(); it++) {
top += (*it)->height();
}
if (listview_scroll > top) listview_scroll = top;
}
void ListView::inc_scroll(float scroll)
{
set_scroll(listview_scroll + scroll);
}
void ListView::dec_scroll(float scroll)
{
set_scroll(listview_scroll - scroll);
}
void ListView::resize()
{
float content_top = 0;
// reposition all children within the container
for (Children::iterator it = children().begin(); it != children().end(); it++) {
(*it)->set_width(width());
if (content_top - listview_scroll < 0) {
// child widget is invisible
(*it)->hide();
} else if ((content_top - listview_scroll) >= height()) {
// child widget is invisible
(*it)->hide();
} else {
(*it)->show();
(*it)->set_location(0, content_top - listview_scroll);
}
content_top += (*it)->height();
}
}
void ListView::deselect()
{
listview_selecteditem = 0;
}
void ListView::select(ListItem *item)
{
if (!item || is_child(item)) {
listview_selecteditem = item;
}
}
void ListView::clear()
{
listview_selecteditem = 0;
remove_children();
}
bool ListView::on_emit(Widget *sender, const Event event, void *data)
{
if ((sender->parent() == this) && (event == Widget::EventListItemClicked)) {
listview_selecteditem = static_cast<ListItem *>(sender);
emit(EventListViewChanged);
return true;
}
return false;
}
bool compare_listitems(const Widget *first, const Widget *second)
{
const ListItem *firstitem = dynamic_cast<const ListItem *>(first);
const ListItem *seconditem = dynamic_cast<const ListItem *>(second);
assert(firstitem && seconditem);
if (firstitem->sortkey() < seconditem->sortkey()) {
return true;
} else if (firstitem->sortkey() > seconditem->sortkey()) {
return false;
} else {
return (firstitem->sortkey().length() < seconditem->sortkey().length());
}
}
void ListView::sort()
{
children().sort(compare_listitems);
}
bool compare_listitems_reverse(const Widget *first, const Widget *second)
{
const ListItem *firstitem = dynamic_cast<const ListItem *>(first);
const ListItem *seconditem = dynamic_cast<const ListItem *>(second);
assert(firstitem && seconditem);
if (firstitem->sortkey() < seconditem->sortkey()) {
return false;
} else if (firstitem->sortkey() > seconditem->sortkey()) {
return true;
} else {
return (firstitem->sortkey().length() > seconditem->sortkey().length());
}
}
void ListView::sort_reverse()
{
children().sort(compare_listitems_reverse);
}
}
|
