blob: 5dd2e0d6b3f47c88768d930f30588f140f20336c (
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
|
//! [0]
QTextEdit *editor = new QTextEdit;
MyHighlighter *highlighter = new MyHighlighter(editor->document());
//! [0]
//! [1]
void MyHighlighter::highlightBlock(const QString &text)
{
QTextCharFormat myClassFormat;
myClassFormat.setFontWeight(QFont::Bold);
myClassFormat.setForeground(Qt::darkMagenta);
QString pattern = "\\bMy[A-Za-z]+\\b";
QRegExp expression(pattern);
int index = text.indexOf(expression);
while (index >= 0) {
int length = expression.matchedLength();
setFormat(index, length, myClassFormat);
index = text.indexOf(expression, index + length);
}
}
//! [1]
//! [2]
QTextCharFormat multiLineCommentFormat;
multiLineCommentFormat.setForeground(Qt::red);
QRegExp startExpression("/\\*");
QRegExp endExpression("\\*/");
setCurrentBlockState(0);
int startIndex = 0;
if (previousBlockState() != 1)
startIndex = text.indexOf(startExpression);
while (startIndex >= 0) {
int endIndex = text.indexOf(endExpression, startIndex);
int commentLength;
if (endIndex == -1) {
setCurrentBlockState(1);
commentLength = text.length() - startIndex;
} else {
commentLength = endIndex - startIndex
+ endExpression.matchedLength();
}
setFormat(startIndex, commentLength, multiLineCommentFormat);
startIndex = text.indexOf(startExpression,
startIndex + commentLength);
}
//! [2]
//! [3]
void MyHighlighter::highlightBlock(const QString &text)
{
QTextCharFormat myClassFormat;
myClassFormat.setFontWeight(QFont::Bold);
myClassFormat.setForeground(Qt::darkMagenta);
QString pattern = "\\bMy[A-Za-z]+\\b";
QRegExp expression(pattern);
int index = text.indexOf(expression);
while (index >= 0) {
int length = expression.matchedLength();
setFormat(index, length, myClassFormat);
index = text.indexOf(expression, index + length);
}
}
//! [3]
//! [4]
struct ParenthesisInfo
{
QChar char;
int position;
};
struct BlockData : public QTextBlockUserData
{
QVector<ParenthesisInfo> parentheses;
};
//! [4]
|
