forked from qt-creator/qt-creator
6ea686faa9
Change-Id: Ic015f7449351166ec41a7745355ddc63504f6442 Reviewed-by: André Hartmann <aha_1980@gmx.de> Reviewed-by: David Schulz <david.schulz@qt.io>
127 lines
4.2 KiB
C++
127 lines
4.2 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "baseannotationhighlighter.h"
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#include <texteditor/fontsettings.h>
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#include <texteditor/texteditorsettings.h>
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#include <QDebug>
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#include <QColor>
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#include <QTextDocument>
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#include <QTextCharFormat>
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typedef QMap<QString, QTextCharFormat> ChangeNumberFormatMap;
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/*!
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\class VcsBase::BaseAnnotationHighlighter
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\brief The BaseAnnotationHighlighter class is the base class for a
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highlighter for annotation lines of the form 'changenumber:XXXX'.
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The change numbers are assigned a color gradient. Example:
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\code
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112: text1 <color 1>
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113: text2 <color 2>
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112: text3 <color 1>
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\endcode
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*/
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namespace VcsBase {
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class BaseAnnotationHighlighterPrivate
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{
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public:
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BaseAnnotationHighlighterPrivate(BaseAnnotationHighlighter *q_) : q(q_) { }
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void updateOtherFormats();
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ChangeNumberFormatMap m_changeNumberMap;
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QColor m_background;
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BaseAnnotationHighlighter *const q;
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};
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void BaseAnnotationHighlighterPrivate::updateOtherFormats()
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{
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m_background = q->fontSettings()
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.toTextCharFormat(TextEditor::C_TEXT)
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.brushProperty(QTextFormat::BackgroundBrush)
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.color();
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q->setChangeNumbers(m_changeNumberMap.keys().toSet());
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}
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BaseAnnotationHighlighter::BaseAnnotationHighlighter(const ChangeNumbers &changeNumbers,
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QTextDocument *document) :
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TextEditor::SyntaxHighlighter(document),
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d(new BaseAnnotationHighlighterPrivate(this))
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{
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setDefaultTextFormatCategories();
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d->updateOtherFormats();
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setChangeNumbers(changeNumbers);
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}
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BaseAnnotationHighlighter::~BaseAnnotationHighlighter()
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{
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delete d;
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}
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void BaseAnnotationHighlighter::setChangeNumbers(const ChangeNumbers &changeNumbers)
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{
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d->m_changeNumberMap.clear();
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if (!changeNumbers.isEmpty()) {
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// Assign a color gradient to annotation change numbers. Give
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// each change number a unique color.
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const QList<QColor> colors =
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TextEditor::SyntaxHighlighter::generateColors(changeNumbers.size(), d->m_background);
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int m = 0;
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const int cstep = colors.count() / changeNumbers.count();
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const ChangeNumbers::const_iterator cend = changeNumbers.constEnd();
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for (ChangeNumbers::const_iterator it = changeNumbers.constBegin(); it != cend; ++it) {
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QTextCharFormat format;
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format.setForeground(colors.at(m));
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d->m_changeNumberMap.insert(*it, format);
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m += cstep;
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}
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}
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}
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void BaseAnnotationHighlighter::highlightBlock(const QString &text)
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{
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if (text.isEmpty() || d->m_changeNumberMap.empty())
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return;
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const QString change = changeNumber(text);
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const ChangeNumberFormatMap::const_iterator it = d->m_changeNumberMap.constFind(change);
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if (it != d->m_changeNumberMap.constEnd())
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setFormatWithSpaces(text, 0, text.length(), it.value());
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}
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void BaseAnnotationHighlighter::setFontSettings(const TextEditor::FontSettings &fontSettings)
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{
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SyntaxHighlighter::setFontSettings(fontSettings);
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d->updateOtherFormats();
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}
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} // namespace VcsBase
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