blob: da320c59d3982315019622e6a053b596cac4fedb (
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
|
/*
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);
listview_scroll = 0.0f;
}
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();
}
}
}
|
