cppcurrentdocumentfilter.cpp 5.18 KB
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/**************************************************************************
**
** This file is part of Qt Creator
**
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** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: http://www.qt-project.org/
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**
**
** GNU Lesser General Public License Usage
**
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** 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
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
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** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
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**
**************************************************************************/
#include "cppcurrentdocumentfilter.h"
#include "cppmodelmanager.h"

#include <coreplugin/editormanager/editormanager.h>
#include <cplusplus/CppDocument.h>

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#include <QStringMatcher>
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using namespace CppTools::Internal;
using namespace CPlusPlus;

CppCurrentDocumentFilter::CppCurrentDocumentFilter(CppModelManager *manager, Core::EditorManager *editorManager)
    : m_modelManager(manager)
{
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    setShortcutString(QString(QLatin1Char('.')));
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    setIncludedByDefault(false);

    search.setSymbolsToSearchFor(SearchSymbols::Declarations |
                                 SearchSymbols::Enums |
                                 SearchSymbols::Functions |
                                 SearchSymbols::Classes);

    search.setSeparateScope(true);

    connect(manager, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
            this,    SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
    connect(editorManager, SIGNAL(currentEditorChanged(Core::IEditor*)),
            this,          SLOT(onCurrentEditorChanged(Core::IEditor*)));
    connect(editorManager, SIGNAL(editorAboutToClose(Core::IEditor*)),
            this,          SLOT(onEditorAboutToClose(Core::IEditor*)));
}

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QList<Locator::FilterEntry> CppCurrentDocumentFilter::matchesFor(QFutureInterface<Locator::FilterEntry> &future, const QString & origEntry)
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{
    QString entry = trimWildcards(origEntry);
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    QList<Locator::FilterEntry> goodEntries;
    QList<Locator::FilterEntry> betterEntries;
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    QStringMatcher matcher(entry, Qt::CaseInsensitive);
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    const QChar asterisk = QLatin1Char('*');
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    QRegExp regexp(asterisk + entry + asterisk, Qt::CaseInsensitive, QRegExp::Wildcard);
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    if (!regexp.isValid())
        return goodEntries;
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    bool hasWildcard = (entry.contains(asterisk) || entry.contains('?'));
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    if (m_currentFileName.isEmpty())
        return goodEntries;

    if (m_itemsOfCurrentDoc.isEmpty()) {
        Snapshot snapshot = m_modelManager->snapshot();
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        Document::Ptr thisDocument = snapshot.document(m_currentFileName);
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        if (thisDocument)
            m_itemsOfCurrentDoc = search(thisDocument);
    }

    foreach (const ModelItemInfo & info, m_itemsOfCurrentDoc)
    {
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        if (future.isCanceled())
            break;

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        if ((hasWildcard && regexp.exactMatch(info.symbolName))
            || (!hasWildcard && matcher.indexIn(info.symbolName) != -1))
        {
            QString symbolName = info.symbolName;// + (info.type == ModelItemInfo::Declaration ? ";" : " {...}");
            QVariant id = qVariantFromValue(info);
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            Locator::FilterEntry filterEntry(this, symbolName, id, info.icon);
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            filterEntry.extraInfo = info.symbolType;

            if (info.symbolName.startsWith(entry))
                betterEntries.append(filterEntry);
            else
                goodEntries.append(filterEntry);
        }
    }

    // entries are unsorted by design!

    betterEntries += goodEntries;
    return betterEntries;
}

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void CppCurrentDocumentFilter::accept(Locator::FilterEntry selection) const
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{
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    ModelItemInfo info = qvariant_cast<CppTools::ModelItemInfo>(selection.internalData);
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    TextEditor::BaseTextEditorWidget::openEditorAt(info.fileName, info.line, info.column,
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                                             Core::Id(), Core::EditorManager::ModeSwitch);
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}

void CppCurrentDocumentFilter::refresh(QFutureInterface<void> &future)
{
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    Q_UNUSED(future)
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}

void CppCurrentDocumentFilter::onDocumentUpdated(Document::Ptr doc)
{
    if (m_currentFileName == doc->fileName()) {
        m_itemsOfCurrentDoc.clear();
    }
}

void CppCurrentDocumentFilter::onCurrentEditorChanged(Core::IEditor * currentEditor)
{
    if (currentEditor) {
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        m_currentFileName = currentEditor->document()->fileName();
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    } else {
        m_currentFileName.clear();
    }
    m_itemsOfCurrentDoc.clear();
}

void CppCurrentDocumentFilter::onEditorAboutToClose(Core::IEditor * editorAboutToClose)
{
    if (!editorAboutToClose) return;
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    if (m_currentFileName == editorAboutToClose->document()->fileName()) {
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        m_currentFileName.clear();
        m_itemsOfCurrentDoc.clear();
    }
}