src/kitemviews/kfileitemmodelfilter.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2011 by Janardhan Reddy                                 *
   3  *   <annapareddyjanardhanreddy@gmail.com>                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "kfileitemmodelfilter_p.h"
  22
  23 #include <KFileItem>
  24 #include <QRegExp>
  25
  26 KFileItemModelFilter::KFileItemModelFilter() :
  27     m_useRegExp(false),
  28     m_regExp(0),
  29     m_lowerCasePattern(),
  30     m_pattern()
  31 {
  32 }
  33
  34 KFileItemModelFilter::~KFileItemModelFilter()
  35 {
  36     delete m_regExp;
  37     m_regExp = 0;
  38 }
  39
  40 void KFileItemModelFilter::setPattern(const QString& filter)
  41 {
  42     m_pattern = filter;
  43     m_lowerCasePattern = filter.toLower();
  44
  45     m_useRegExp = filter.contains('*') ||
  46                   filter.contains('?') ||
  47                   filter.contains('[');
  48     if (m_useRegExp) {
  49         if (!m_regExp) {
  50             m_regExp = new QRegExp();
  51             m_regExp->setCaseSensitivity(Qt::CaseInsensitive);
  52             m_regExp->setMinimal(false);
  53             m_regExp->setPatternSyntax(QRegExp::WildcardUnix);
  54         }
  55         m_regExp->setPattern(filter);
  56     }
  57 }
  58
  59 QString KFileItemModelFilter::pattern() const
  60 {
  61     return m_pattern;
  62 }
  63
  64 bool KFileItemModelFilter::matches(const KFileItem& item) const
  65 {
  66     if (m_useRegExp) {
  67         return m_regExp->exactMatch(item.text());
  68     } else {
  69         return item.text().toLower().contains(m_lowerCasePattern);
  70     }
  71 }