2014-08-19 15:59:29 +02:00
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/****************************************************************************
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**
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2015-01-14 18:07:15 +01:00
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing
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2014-08-19 15:59:29 +02:00
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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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2015-01-14 18:07:15 +01:00
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** a written agreement between you and The Qt Company. For licensing terms and
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** conditions see http://www.qt.io/terms-conditions. For further information
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2014-10-15 14:46:23 +02:00
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** use the contact form at http://www.qt.io/contact-us.
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2014-08-19 15:59:29 +02:00
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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2014-10-15 14:46:23 +02:00
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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2014-08-19 15:59:29 +02:00
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**
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2015-01-14 18:07:15 +01:00
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** In addition, as a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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2014-08-19 15:59:29 +02:00
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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****************************************************************************/
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#include "semantichighlighter.h"
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#include <texteditor/fontsettings.h>
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2015-12-15 11:59:48 +01:00
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#include <texteditor/semantichighlighter.h>
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2014-08-19 15:59:29 +02:00
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#include <texteditor/syntaxhighlighter.h>
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2015-03-05 08:22:48 +01:00
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#include <texteditor/textdocument.h>
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2014-08-19 15:59:29 +02:00
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#include <utils/qtcassert.h>
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2014-10-23 12:39:59 +02:00
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#include <QLoggingCategory>
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2015-03-05 08:22:48 +01:00
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#include <QTextDocument>
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2014-08-19 15:59:29 +02:00
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using TextEditor::SemanticHighlighter::incrementalApplyExtraAdditionalFormats;
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using TextEditor::SemanticHighlighter::clearExtraAdditionalFormatsUntilEnd;
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2014-10-23 12:39:59 +02:00
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static Q_LOGGING_CATEGORY(log, "qtc.cpptools.semantichighlighter")
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2014-08-19 15:59:29 +02:00
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namespace CppTools {
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2014-09-22 18:43:31 +02:00
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SemanticHighlighter::SemanticHighlighter(TextEditor::TextDocument *baseTextDocument)
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2014-08-19 15:59:29 +02:00
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: QObject(baseTextDocument)
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, m_baseTextDocument(baseTextDocument)
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, m_revision(0)
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{
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QTC_CHECK(m_baseTextDocument);
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updateFormatMapFromFontSettings();
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}
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SemanticHighlighter::~SemanticHighlighter()
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{
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if (m_watcher) {
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disconnectWatcher();
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m_watcher->cancel();
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m_watcher->waitForFinished();
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}
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}
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void SemanticHighlighter::setHighlightingRunner(HighlightingRunner highlightingRunner)
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{
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m_highlightingRunner = highlightingRunner;
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}
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void SemanticHighlighter::run()
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{
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QTC_ASSERT(m_highlightingRunner, return);
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2014-10-23 12:39:59 +02:00
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qCDebug(log) << "SemanticHighlighter: run()";
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2014-08-19 15:59:29 +02:00
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if (m_watcher) {
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disconnectWatcher();
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m_watcher->cancel();
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}
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m_watcher.reset(new QFutureWatcher<TextEditor::HighlightingResult>);
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connectWatcher();
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m_revision = documentRevision();
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m_watcher->setFuture(m_highlightingRunner());
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}
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void SemanticHighlighter::onHighlighterResultAvailable(int from, int to)
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{
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if (documentRevision() != m_revision)
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return; // outdated
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else if (!m_watcher || m_watcher->isCanceled())
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return; // aborted
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2014-10-23 12:39:59 +02:00
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qCDebug(log) << "onHighlighterResultAvailable()" << from << to;
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2014-08-19 15:59:29 +02:00
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TextEditor::SyntaxHighlighter *highlighter = m_baseTextDocument->syntaxHighlighter();
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QTC_ASSERT(highlighter, return);
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incrementalApplyExtraAdditionalFormats(highlighter, m_watcher->future(), from, to, m_formatMap);
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}
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void SemanticHighlighter::onHighlighterFinished()
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{
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QTC_ASSERT(m_watcher, return);
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if (!m_watcher->isCanceled() && documentRevision() == m_revision) {
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TextEditor::SyntaxHighlighter *highlighter = m_baseTextDocument->syntaxHighlighter();
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QTC_CHECK(highlighter);
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if (highlighter) {
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2014-10-23 12:39:59 +02:00
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qCDebug(log) << "onHighlighterFinished() - clearing formats";
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2014-08-19 15:59:29 +02:00
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clearExtraAdditionalFormatsUntilEnd(highlighter, m_watcher->future());
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}
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}
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m_watcher.reset();
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}
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void SemanticHighlighter::connectWatcher()
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{
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typedef QFutureWatcher<TextEditor::HighlightingResult> Watcher;
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connect(m_watcher.data(), &Watcher::resultsReadyAt,
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this, &SemanticHighlighter::onHighlighterResultAvailable);
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connect(m_watcher.data(), &Watcher::finished,
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this, &SemanticHighlighter::onHighlighterFinished);
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}
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void SemanticHighlighter::disconnectWatcher()
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{
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typedef QFutureWatcher<TextEditor::HighlightingResult> Watcher;
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disconnect(m_watcher.data(), &Watcher::resultsReadyAt,
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this, &SemanticHighlighter::onHighlighterResultAvailable);
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disconnect(m_watcher.data(), &Watcher::finished,
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this, &SemanticHighlighter::onHighlighterFinished);
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}
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unsigned SemanticHighlighter::documentRevision() const
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{
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return m_baseTextDocument->document()->revision();
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}
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void SemanticHighlighter::updateFormatMapFromFontSettings()
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{
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2014-09-11 10:51:41 +02:00
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QTC_ASSERT(m_baseTextDocument, return);
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2014-08-19 15:59:29 +02:00
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const TextEditor::FontSettings &fs = m_baseTextDocument->fontSettings();
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m_formatMap[TypeUse] = fs.toTextCharFormat(TextEditor::C_TYPE);
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m_formatMap[LocalUse] = fs.toTextCharFormat(TextEditor::C_LOCAL);
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m_formatMap[FieldUse] = fs.toTextCharFormat(TextEditor::C_FIELD);
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m_formatMap[EnumerationUse] = fs.toTextCharFormat(TextEditor::C_ENUMERATION);
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m_formatMap[VirtualMethodUse] = fs.toTextCharFormat(TextEditor::C_VIRTUAL_METHOD);
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m_formatMap[LabelUse] = fs.toTextCharFormat(TextEditor::C_LABEL);
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m_formatMap[MacroUse] = fs.toTextCharFormat(TextEditor::C_PREPROCESSOR);
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m_formatMap[FunctionUse] = fs.toTextCharFormat(TextEditor::C_FUNCTION);
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m_formatMap[PseudoKeywordUse] = fs.toTextCharFormat(TextEditor::C_KEYWORD);
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m_formatMap[StringUse] = fs.toTextCharFormat(TextEditor::C_STRING);
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}
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} // namespace CppTools
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