cpptoolseditorsupport.cpp 3.96 KB
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/**************************************************************************
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**
** This file is part of Qt Creator
**
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** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** No Commercial Usage
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**
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** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, 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.
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**
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** 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.
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** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
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**
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**************************************************************************/
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#include "cpptoolseditorsupport.h"
#include "cppmodelmanager.h"

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#include <coreplugin/ifile.h>

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#include <texteditor/itexteditor.h>
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#include <texteditor/basetexteditor.h>
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#include <AST.h>
#include <ASTVisitor.h>
#include <TranslationUnit.h>

#include <QtCore/QTimer>
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using namespace CppTools::Internal;
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using namespace CPlusPlus;

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CppEditorSupport::CppEditorSupport(CppModelManager *modelManager)
    : QObject(modelManager),
      _modelManager(modelManager),
      _updateDocumentInterval(UPDATE_DOCUMENT_DEFAULT_INTERVAL)
{
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    _revision = 0;

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    _updateDocumentTimer = new QTimer(this);
    _updateDocumentTimer->setSingleShot(true);
    _updateDocumentTimer->setInterval(_updateDocumentInterval);
    connect(_updateDocumentTimer, SIGNAL(timeout()), this, SLOT(updateDocumentNow()));
}

CppEditorSupport::~CppEditorSupport()
{ }

TextEditor::ITextEditor *CppEditorSupport::textEditor() const
{ return _textEditor; }

void CppEditorSupport::setTextEditor(TextEditor::ITextEditor *textEditor)
{
    _textEditor = textEditor;

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    if (_textEditor) {
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        connect(_textEditor, SIGNAL(contentsChanged()), this, SIGNAL(contentsChanged()));
        connect(this, SIGNAL(contentsChanged()), this, SLOT(updateDocument()));
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        updateDocument();
    }
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}

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QString CppEditorSupport::contents()
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{
    if (! _textEditor)
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        return QString();
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    else if (! _cachedContents.isEmpty())
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        _cachedContents = _textEditor->contents();
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    return _cachedContents;
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}

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unsigned CppEditorSupport::editorRevision() const
{
    if (_textEditor) {
        if (TextEditor::BaseTextEditor *ed = qobject_cast<TextEditor::BaseTextEditor *>(_textEditor->widget()))
            return ed->document()->revision();
    }

    return 0;
}

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int CppEditorSupport::updateDocumentInterval() const
{ return _updateDocumentInterval; }

void CppEditorSupport::setUpdateDocumentInterval(int updateDocumentInterval)
{ _updateDocumentInterval = updateDocumentInterval; }

void CppEditorSupport::updateDocument()
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{
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    _revision = editorRevision();

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    if (qobject_cast<TextEditor::BaseTextEditor*>(_textEditor->widget()) != 0) {
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        _modelManager->stopEditorSelectionsUpdate();
    }

    _updateDocumentTimer->start(_updateDocumentInterval);
}
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void CppEditorSupport::updateDocumentNow()
{
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    if (_documentParser.isRunning() || _revision != editorRevision()) {
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        _updateDocumentTimer->start(_updateDocumentInterval);
    } else {
        _updateDocumentTimer->stop();
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        QStringList sourceFiles(_textEditor->file()->fileName());
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        _cachedContents = _textEditor->contents().toUtf8();
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        _documentParser = _modelManager->refreshSourceFiles(sourceFiles);
    }
}