src/plugins/cpptools/cpplocatorfilter.cpp

   1 /**************************************************************************
   2 **
   3 ** This file is part of Qt Creator
   4 **
   5 ** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
   6 **
   7 ** Contact: Nokia Corporation (qt-info@nokia.com)
   8 **
   9 ** No Commercial Usage
  10 **
  11 ** This file contains pre-release code and may not be distributed.
  12 ** You may use this file in accordance with the terms and conditions
  13 ** contained in the Technology Preview License Agreement accompanying
  14 ** this package.
  15 **
  16 ** GNU Lesser General Public License Usage
  17 **
  18 ** Alternatively, this file may be used under the terms of the GNU Lesser
  19 ** General Public License version 2.1 as published by the Free Software
  20 ** Foundation and appearing in the file LICENSE.LGPL included in the
  21 ** packaging of this file.  Please review the following information to
  22 ** ensure the GNU Lesser General Public License version 2.1 requirements
  23 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
  24 **
  25 ** In addition, as a special exception, Nokia gives you certain additional
  26 ** rights.  These rights are described in the Nokia Qt LGPL Exception
  27 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  28 **
  29 ** If you have questions regarding the use of this file, please contact
  30 ** Nokia at qt-info@nokia.com.
  31 **
  32 **************************************************************************/
  33
  34 #include "cpplocatorfilter.h"
  35 #include "cppmodelmanager.h"
  36
  37 #include <texteditor/itexteditor.h>
  38 #include <texteditor/basetexteditor.h>
  39
  40 #include <QtCore/QStringMatcher>
  41
  42 using namespace CppTools::Internal;
  43
  44 CppLocatorFilter::CppLocatorFilter(CppModelManager *manager)
  45     : m_manager(manager),
  46     m_forceNewSearchList(true)
  47 {
  48     setShortcutString(QString(QLatin1Char(':')));
  49     setIncludedByDefault(false);
  50
  51     connect(manager, SIGNAL(documentUpdated(CPlusPlus::Document::Ptr)),
  52             this, SLOT(onDocumentUpdated(CPlusPlus::Document::Ptr)));
  53
  54     connect(manager, SIGNAL(aboutToRemoveFiles(QStringList)),
  55             this, SLOT(onAboutToRemoveFiles(QStringList)));
  56 }
  57
  58 CppLocatorFilter::~CppLocatorFilter()
  59 { }
  60
  61 void CppLocatorFilter::onDocumentUpdated(CPlusPlus::Document::Ptr doc)
  62 {
  63     m_searchList[doc->fileName()] = search(doc);
  64 }
  65
  66 void CppLocatorFilter::onAboutToRemoveFiles(const QStringList &files)
  67 {
  68     foreach (const QString &file, files)
  69         m_searchList.remove(file);
  70 }
  71
  72 void CppLocatorFilter::refresh(QFutureInterface<void> &future)
  73 {
  74     Q_UNUSED(future)
  75 }
  76
  77 static bool compareLexigraphically(const Locator::FilterEntry &a,
  78                                    const Locator::FilterEntry &b)
  79 {
  80     return a.displayName < b.displayName;
  81 }
  82
  83 QList<Locator::FilterEntry> CppLocatorFilter::matchesFor(QFutureInterface<Locator::FilterEntry> &future, const QString &origEntry)
  84 {
  85     QString entry = trimWildcards(origEntry);
  86     QList<Locator::FilterEntry> goodEntries;
  87     QList<Locator::FilterEntry> betterEntries;
  88     const QChar asterisk = QLatin1Char('*');
  89     QStringMatcher matcher(entry, Qt::CaseInsensitive);
  90     const QRegExp regexp(asterisk + entry+ asterisk, Qt::CaseInsensitive, QRegExp::Wildcard);
  91     if (!regexp.isValid())
  92         return goodEntries;
  93     bool hasWildcard = (entry.contains(asterisk) || entry.contains('?'));
  94
  95     QHashIterator<QString, QList<ModelItemInfo> > it(m_searchList);
  96     while (it.hasNext()) {
  97         if (future.isCanceled())
  98             break;
  99
 100         it.next();
 101
 102         const QList<ModelItemInfo> items = it.value();
 103         foreach (const ModelItemInfo &info, items) {
 104             if ((hasWildcard && regexp.exactMatch(info.symbolName))
 105                     || (!hasWildcard && matcher.indexIn(info.symbolName) != -1)) {
 106
 107                 QVariant id = qVariantFromValue(info);
 108                 Locator::FilterEntry filterEntry(this, info.symbolName, id, info.icon);
 109                 if (! info.symbolType.isEmpty())
 110                     filterEntry.extraInfo = info.symbolType;
 111                 else
 112                     filterEntry.extraInfo = info.fileName;
 113
 114                 if (info.symbolName.startsWith(entry))
 115                     betterEntries.append(filterEntry);
 116                 else
 117                     goodEntries.append(filterEntry);
 118             }
 119         }
 120     }
 121
 122     if (goodEntries.size() < 1000)
 123         qSort(goodEntries.begin(), goodEntries.end(), compareLexigraphically);
 124     if (betterEntries.size() < 1000)
 125         qSort(betterEntries.begin(), betterEntries.end(), compareLexigraphically);
 126
 127     betterEntries += goodEntries;
 128     return betterEntries;
 129 }
 130
 131 void CppLocatorFilter::accept(Locator::FilterEntry selection) const
 132 {
 133     ModelItemInfo info = qvariant_cast<CppTools::Internal::ModelItemInfo>(selection.internalData);
 134     TextEditor::BaseTextEditor::openEditorAt(info.fileName, info.line, info.column,
 135                                              QString(), Core::EditorManager::ModeSwitch);
 136 }
 137
 138 void CppLocatorFilter::reset()
 139 {
 140     m_searchList.clear();
 141     m_previousResults.clear();
 142     m_previousEntry.clear();
 143     m_forceNewSearchList = true;
 144 }