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
|
#include "aotextarea.h"
AOTextArea::AOTextArea(QWidget *p_parent, int p_log_length) : QTextBrowser(p_parent)
{
this->document()->setMaximumBlockCount(p_log_length);
}
void AOTextArea::append_linked(QString p_message)
{
QString result = p_message.toHtmlEscaped()
.replace("\n", "<br>")
.replace(url_parser_regex, "<a href='\\1'>\\1</a>");
this->insertHtml(result);
}
void AOTextArea::append_chatmessage(QString p_name, QString p_message,
QString p_name_colour, QString p_color)
{
const QTextCursor old_cursor = this->textCursor();
const int old_scrollbar_value = this->verticalScrollBar()->value();
const bool is_scrolled_down =
old_scrollbar_value == this->verticalScrollBar()->maximum();
this->moveCursor(QTextCursor::End);
this->append("");
if (!p_name.isEmpty()) {
this->insertHtml("<b><font color=" + p_name_colour + ">" + p_name.toHtmlEscaped() +
"</font></b>: ");
// cheap workarounds ahoy
p_message += " ";
}
QString result = p_message.toHtmlEscaped()
.replace("\n", "<br>")
.replace(url_parser_regex, "<a href='\\1'>\\1</a>");
if (!p_color.isEmpty()) {
result = "<font color=" + p_color + ">" + result + "</font>";
}
this->insertHtml(result);
this->auto_scroll(old_cursor, old_scrollbar_value, is_scrolled_down);
}
void AOTextArea::append_error(QString p_message)
{
const QTextCursor old_cursor = this->textCursor();
const int old_scrollbar_value = this->verticalScrollBar()->value();
const bool is_scrolled_down =
old_scrollbar_value == this->verticalScrollBar()->maximum();
this->moveCursor(QTextCursor::End);
this->append("");
p_message += " ";
QString result = p_message.replace("\n", "<br>")
.replace(url_parser_regex, "<a href='\\1'>\\1</a>");
this->insertHtml("<font color='red'>" + result + "</font>");
this->auto_scroll(old_cursor, old_scrollbar_value, is_scrolled_down);
}
void AOTextArea::auto_scroll(QTextCursor old_cursor, int old_scrollbar_value,
bool is_scrolled_down)
{
if (old_cursor.hasSelection() || !is_scrolled_down) {
// The user has selected text or scrolled away from the bottom: maintain
// position.
this->setTextCursor(old_cursor);
this->verticalScrollBar()->setValue(old_scrollbar_value);
}
else {
// The user hasn't selected any text and the scrollbar is at the bottom:
// scroll to the bottom.
this->moveCursor(QTextCursor::End);
this->verticalScrollBar()->setValue(this->verticalScrollBar()->maximum());
}
}
|
