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Diffstat (limited to 'src/plugins/qtscripteditor/qtscripthighlighter.cpp')
-rw-r--r-- | src/plugins/qtscripteditor/qtscripthighlighter.cpp | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/plugins/qtscripteditor/qtscripthighlighter.cpp b/src/plugins/qtscripteditor/qtscripthighlighter.cpp new file mode 100644 index 0000000000..16d8f11472 --- /dev/null +++ b/src/plugins/qtscripteditor/qtscripthighlighter.cpp @@ -0,0 +1,110 @@ +/*************************************************************************** +** +** This file is part of Qt Creator +** +** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). +** +** Contact: Qt Software Information (qt-info@nokia.com) +** +** +** Non-Open Source Usage +** +** Licensees may use this file in accordance with the Qt Beta Version +** License Agreement, Agreement version 2.2 provided with the Software or, +** alternatively, in accordance with the terms contained in a written +** agreement between you and Nokia. +** +** GNU General Public License Usage +** +** Alternatively, this file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the packaging +** of this file. Please review the following information to ensure GNU +** General Public Licensing requirements will be met: +** +** http://www.fsf.org/licensing/licenses/info/GPLv2.html and +** http://www.gnu.org/copyleft/gpl.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt GPL Exception version +** 1.2, included in the file GPL_EXCEPTION.txt in this package. +** +***************************************************************************/ +#include "qtscripthighlighter.h" + +namespace QtScriptEditor { +namespace Internal { + +QtScriptHighlighter::QtScriptHighlighter(QTextDocument *parent) : + SharedTools::QScriptHighlighter(parent) +{ + m_currentBlockParentheses.reserve(20); + m_braceDepth = 0; +} + +int QtScriptHighlighter::onBlockStart() +{ + m_currentBlockParentheses.clear(); + m_braceDepth = 0; + + int state = 0; + int previousState = previousBlockState(); + if (previousState != -1) { + state = previousState & 0xff; + m_braceDepth = previousState >> 8; + } + + return state; +} + +void QtScriptHighlighter::onOpeningParenthesis(QChar parenthesis, int pos) +{ + if (parenthesis == QLatin1Char('{')) + ++m_braceDepth; + m_currentBlockParentheses.push_back(Parenthesis(Parenthesis::Opened, parenthesis, pos)); +} + +void QtScriptHighlighter::onClosingParenthesis(QChar parenthesis, int pos) +{ + if (parenthesis == QLatin1Char('}')) + --m_braceDepth; + m_currentBlockParentheses.push_back(Parenthesis(Parenthesis::Closed, parenthesis, pos)); +} + +void QtScriptHighlighter::onBlockEnd(int state, int firstNonSpace) +{ + typedef TextEditor::TextBlockUserData TextEditorBlockData; + + setCurrentBlockState((m_braceDepth << 8) | state); + + // Set block data parentheses. Force creation of block data unless empty + TextEditorBlockData *blockData = 0; + + if (QTextBlockUserData *userData = currentBlockUserData()) + blockData = static_cast<TextEditorBlockData *>(userData); + + if (!blockData && !m_currentBlockParentheses.empty()) { + blockData = new TextEditorBlockData; + setCurrentBlockUserData(blockData); + } + if (blockData) { + blockData->setParentheses(m_currentBlockParentheses); + blockData->setClosingCollapseMode(TextEditor::TextBlockUserData::NoClosingCollapse); + blockData->setCollapseMode(TextEditor::TextBlockUserData::NoCollapse); + } + if (!m_currentBlockParentheses.isEmpty()) { + Q_ASSERT(blockData); + int collapse = Parenthesis::collapseAtPos(m_currentBlockParentheses); + if (collapse >= 0) { + if (collapse == firstNonSpace) + blockData->setCollapseMode(TextEditor::TextBlockUserData::CollapseThis); + else + blockData->setCollapseMode(TextEditor::TextBlockUserData::CollapseAfter); + } + if (Parenthesis::hasClosingCollapse(m_currentBlockParentheses)) + blockData->setClosingCollapseMode(TextEditor::TextBlockUserData::NoClosingCollapse); + } +} + +} // namespace Internal +} // namespace QtScriptEditor |