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
|
/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/
#include "baseannotationhighlighter.h"
#include <math.h>
#include <QSet>
#include <QDebug>
#include <QColor>
#include <QTextDocument>
#include <QTextEdit>
#include <QTextCharFormat>
typedef QMap<QString, QTextCharFormat> ChangeNumberFormatMap;
/*!
\class VcsBase::BaseAnnotationHighlighter
\brief Base for a highlighter for annotation lines of the form 'changenumber:XXXX'.
The change numbers are assigned a color gradient. Example:
\code
112: text1 <color 1>
113: text2 <color 2>
112: text3 <color 1>
\endcode
*/
namespace VcsBase {
namespace Internal {
class BaseAnnotationHighlighterPrivate
{
public:
ChangeNumberFormatMap m_changeNumberMap;
QColor m_background;
};
} // namespace Internal
BaseAnnotationHighlighter::BaseAnnotationHighlighter(const ChangeNumbers &changeNumbers,
const QColor &bg,
QTextDocument *document) :
TextEditor::SyntaxHighlighter(document),
d(new Internal::BaseAnnotationHighlighterPrivate)
{
d->m_background = bg;
setChangeNumbers(changeNumbers);
}
BaseAnnotationHighlighter::~BaseAnnotationHighlighter()
{
delete d;
}
void BaseAnnotationHighlighter::setChangeNumbers(const ChangeNumbers &changeNumbers)
{
QColor bg = d->m_background;
d->m_changeNumberMap.clear();
if (!changeNumbers.isEmpty()) {
// Assign a color gradient to annotation change numbers. Give
// each change number a unique color.
const double oneThird = 1.0 / 3.0;
const int step = qRound(ceil(pow(double(changeNumbers.count()), oneThird)));
QList<QColor> colors;
const int factor = 255 / step;
int half = factor / 2;
for (int i=0; i<=step; ++i)
for (int j=0; j<=step; ++j)
for (int k=0; k<=step; ++k) {
QColor c(i*factor, j*factor, k*factor);
if ((bg.red() - half > c.red() ||bg.red() + half <= c.red())
&& (bg.green() - half > c.green() || bg.green() + half <= c.green())
&& (bg.blue() - half > c.blue() || bg.blue() + half <= c.blue()))
colors.prepend(c);
}
int m = 0;
const int cstep = colors.count() / changeNumbers.count();
const ChangeNumbers::const_iterator cend = changeNumbers.constEnd();
for (ChangeNumbers::const_iterator it = changeNumbers.constBegin(); it != cend; ++it) {
QTextCharFormat format;
format.setForeground(colors.at(m));
d->m_changeNumberMap.insert(*it, format);
m += cstep;
}
}
}
void BaseAnnotationHighlighter::highlightBlock(const QString &text)
{
if (text.isEmpty() || d->m_changeNumberMap.empty())
return;
const QString change = changeNumber(text);
const ChangeNumberFormatMap::const_iterator it = d->m_changeNumberMap.constFind(change);
if (it != d->m_changeNumberMap.constEnd())
setFormat(0, text.length(), it.value());
}
void BaseAnnotationHighlighter::setBackgroundColor(const QColor &color)
{
d->m_background = color;
setChangeNumbers(d->m_changeNumberMap.keys().toSet());
}
} // namespace VcsBase
|
