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
|
/*
Copyright (c) 2018 Christian Mollekopf <mollekopf@kolabsys.com>
This library is free software; you can redistribute it and/or modify it
under the terms of the GNU Library General Public License as published by
the Free Software Foundation; either version 2 of the License, or (at your
option) any later version.
This library is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to the
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
#include "viewhighlighter.h"
#include <QQuickTextDocument>
#include <QSyntaxHighlighter>
#include <QRegularExpression>
#include <QString>
class SearchHighlighter : public QSyntaxHighlighter
{
Q_OBJECT
public:
SearchHighlighter(QTextDocument *parent = 0)
: QSyntaxHighlighter(parent)
{
}
void setSearchString(const QString &s)
{
mSearchString = s;
rehighlight();
}
protected:
void highlightBlock(const QString &text) override
{
if (!mSearchString.isEmpty()) {
QTextCharFormat format;
format.setFontWeight(QFont::Bold);
format.setBackground(QColor{"#f67400"});
QRegularExpression expression(mSearchString, QRegularExpression::CaseInsensitiveOption);
auto i = expression.globalMatch(text);
while (i.hasNext()) {
auto match = i.next();
setFormat(match.capturedStart(), match.capturedLength(), format);
}
}
}
private:
QString mSearchString;
};
struct ViewHighlighter::Private {
SearchHighlighter *searchHighligher;
};
ViewHighlighter::ViewHighlighter(QObject *parent)
: QObject(parent),
d{new Private}
{
}
void ViewHighlighter::setTextDocument(QQuickTextDocument *document)
{
if (document) {
d->searchHighligher = new SearchHighlighter{document->textDocument()};
}
}
void ViewHighlighter::setSearchString(const QString &s)
{
if (d->searchHighligher) {
d->searchHighligher->setSearchString(s);
}
}
#include "viewhighlighter.moc"
|
