src/search/searchcriterionselector.h

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Adam Kidder <thekidder@gmail.com>               *
   3  *   Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at>                  *
   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 #ifndef SEARCHCRITERIONSELECTOR_H
  22 #define SEARCHCRITERIONSELECTOR_H
  23
  24 #include <QList>
  25 #include <QString>
  26 #include <QWidget>
  27
  28 #define DISABLE_NEPOMUK_LEGACY
  29 #include <nepomuk/term.h>
  30 #include <search/searchcriteriondescription.h>
  31
  32 class SearchCriterionValue;
  33 class QComboBox;
  34 class QHBoxLayout;
  35 class QPushButton;
  36 class ValueWidget;
  37
  38 /**
  39  * @brief Allows the user to select a search criterion.
  40  * The widget represents one row of the DolphinSearchOptionsConfigurator.
  41  * Example: [File Size] [greater than] [10] [Byte]
  42  *
  43  * @see DolphinSearchOptionsConfigurator.
  44  */
  45 class SearchCriterionSelector : public QWidget
  46 {
  47     Q_OBJECT
  48
  49 public:
  50     enum Type { Date, Size, Tag, Rating };
  51
  52     SearchCriterionSelector(Type type, QWidget* parent = 0);
  53     virtual ~SearchCriterionSelector();
  54
  55     /** Returns the query-term for the criterion. */
  56     Nepomuk::Query::Term queryTerm() const;
  57
  58     Type type() const;
  59
  60 signals:
  61     /**
  62      * Is emitted if the criterion selector should be removed
  63      * because the user clicked the "Remove" button.
  64      */
  65     void removeCriterion();
  66
  67     /** Is emitted if the user has changed the search criterion. */
  68     void criterionChanged();
  69
  70 private slots:
  71     void slotDescriptionChanged(int index);
  72     void slotComparatorChanged(int index);
  73
  74 private:
  75     /**
  76      * Creates all available search criterion descriptions m_descriptions
  77      * and adds them into the combobox m_descriptionsBox.
  78      */
  79     void createDescriptions();
  80
  81 private:
  82     QHBoxLayout* m_layout;
  83     QComboBox* m_descriptionsBox;        // has items like "File Size", "Date Modified", ...
  84     QComboBox* m_comparatorBox;          // has items like "greater than", "less than", ...
  85     SearchCriterionValue* m_valueWidget; // contains the value of a file size or a date
  86     QPushButton* m_removeButton;         // requests a removing of the search criterion instance
  87
  88     QList<SearchCriterionDescription> m_descriptions;
  89 };
  90
  91 #endif // SEARCHCRITERIONSELECTOR_H