src/viewextensionsfactory.h

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #ifndef VIEWEXTENSIONSFACTORY_H
  21 #define VIEWEXTENSIONSFACTORY_H
  22
  23 #include <QObject>
  24
  25 #include "dolphinview.h"
  26
  27 class DolphinController;
  28 class DolphinFileItemDelegate;
  29 class DolphinSortFilterProxyModel;
  30 class DolphinViewAutoScroller;
  31 class KFilePreviewGenerator;
  32 class QModelIndex;
  33 class SelectionManager;
  34 class ToolTipManager;
  35 class QAbstractItemView;
  36
  37 /**
  38  * @brief Responsible for creating extensions like tooltips and previews
  39  *        that are available in all view implementations.
  40  *
  41  * Each view implementation (iconsview, detailsview, columnview) must
  42  * instantiate an instance of this class to assure having
  43  * a common behavior that is independent from the custom functionality of
  44  * a view implementation.
  45  */
  46 class ViewExtensionsFactory : public QObject
  47 {
  48     Q_OBJECT
  49
  50 public:
  51     explicit ViewExtensionsFactory(QAbstractItemView* view,
  52                                    DolphinController* controller);
  53     virtual ~ViewExtensionsFactory();
  54
  55     /**
  56      * Must be invoked by the item view, when QAbstractItemView::currentChanged()
  57      * has been called. Assures that the current item stays visible when it has been
  58      * changed by the keyboard.
  59      */
  60     void handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous);
  61
  62     DolphinFileItemDelegate* fileItemDelegate() const;
  63
  64 protected:
  65     virtual bool eventFilter(QObject* watched, QEvent* event);
  66
  67 private slots:
  68     void slotZoomLevelChanged();
  69     void cancelPreviews();
  70     void slotShowPreviewChanged();
  71     void slotShowHiddenFilesChanged();
  72     void slotSortingChanged(DolphinView::Sorting sorting);
  73     void slotSortOrderChanged(Qt::SortOrder order);
  74     void slotSortFoldersFirstChanged(bool foldersFirst);
  75     void requestActivation();
  76
  77 private:
  78     DolphinSortFilterProxyModel* proxyModel() const;
  79
  80 private:
  81     QAbstractItemView* m_view;
  82     DolphinController* m_controller;
  83     ToolTipManager* m_toolTipManager;
  84     KFilePreviewGenerator* m_previewGenerator;
  85     SelectionManager* m_selectionManager;
  86     DolphinViewAutoScroller* m_autoScroller;
  87     DolphinFileItemDelegate* m_fileItemDelegate;
  88 };
  89
  90 #endif
  91