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34 #include "baseannotationhighlighter.h"
37 #include <QtCore/QSet>
38 #include <QtCore/QDebug>
39 #include <QtGui/QColor>
40 #include <QtGui/QTextDocument>
41 #include <QtGui/QTextEdit>
42 #include <QtGui/QTextCharFormat>
44 typedef QMap<QString, QTextCharFormat> ChangeNumberFormatMap;
48 struct BaseAnnotationHighlighterPrivate {
49 ChangeNumberFormatMap m_changeNumberMap;
52 BaseAnnotationHighlighter::BaseAnnotationHighlighter(const ChangeNumbers &changeNumbers,
53 QTextDocument *document) :
54 TextEditor::SyntaxHighlighter(document),
55 m_d(new BaseAnnotationHighlighterPrivate)
57 setChangeNumbers(changeNumbers);
60 BaseAnnotationHighlighter::~BaseAnnotationHighlighter()
65 void BaseAnnotationHighlighter::setChangeNumbers(const ChangeNumbers &changeNumbers)
67 m_d->m_changeNumberMap.clear();
68 if (!changeNumbers.isEmpty()) {
69 // Assign a color gradient to annotation change numbers. Give
70 // each change number a unique color.
71 const double oneThird = 1.0 / 3.0;
72 const int step = qRound(ceil(pow(double(changeNumbers.count()), oneThird)));
74 const int factor = 255 / step;
75 for (int i=0; i<step; ++i)
76 for (int j=0; j<step; ++j)
77 for (int k=0; k<step; ++k)
78 colors.append(QColor(i*factor, j*factor, k*factor));
81 const int cstep = colors.count() / changeNumbers.count();
82 const ChangeNumbers::const_iterator cend = changeNumbers.constEnd();
83 for (ChangeNumbers::const_iterator it = changeNumbers.constBegin(); it != cend; ++it) {
84 QTextCharFormat format;
85 format.setForeground(colors.at(m));
86 m_d->m_changeNumberMap.insert(*it, format);
92 void BaseAnnotationHighlighter::highlightBlock(const QString &text)
94 if (text.isEmpty() || m_d->m_changeNumberMap.empty())
96 const QString change = changeNumber(text);
97 const ChangeNumberFormatMap::const_iterator it = m_d->m_changeNumberMap.constFind(change);
98 if (it != m_d->m_changeNumberMap.constEnd())
99 setFormat(0, text.length(), it.value());
102 } // namespace VCSBase