src/views/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 DolphinFileItemDelegate;
  28 class DolphinSortFilterProxyModel;
  29 class DolphinViewAutoScroller;
  30 class KFilePreviewGenerator;
  31 class FolderExpander;
  32 class QModelIndex;
  33 class SelectionManager;
  34 class ToolTipManager;
  35 class QAbstractItemView;
  36 class VersionControlObserver;
  37 class ViewModeController;
  38
  39 /**
  40  * @brief Responsible for creating extensions like tooltips and previews
  41  *        that are available in all view implementations.
  42  *
  43  * Each view implementation (iconsview, detailsview, columnview) must
  44  * instantiate an instance of this class to assure having
  45  * a common behavior that is independent from the custom functionality of
  46  * a view implementation.
  47  */
  48 class ViewExtensionsFactory : public QObject
  49 {
  50     Q_OBJECT
  51
  52 public:
  53     explicit ViewExtensionsFactory(QAbstractItemView* view,
  54                                    DolphinViewController* dolphinViewController,
  55                                    const ViewModeController* viewModeController);
  56     virtual ~ViewExtensionsFactory();
  57
  58     /**
  59      * Must be invoked by the item view, when QAbstractItemView::currentChanged()
  60      * has been called. Assures that the current item stays visible when it has been
  61      * changed by the keyboard.
  62      */
  63     void handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous);
  64
  65     DolphinFileItemDelegate* fileItemDelegate() const;
  66
  67     /**
  68      * Enables the automatically expanding of a folder when dragging
  69      * items above the folder.
  70      */
  71     void setAutoFolderExpandingEnabled(bool enabled);
  72     bool autoFolderExpandingEnabled() const;
  73
  74 protected:
  75     virtual bool eventFilter(QObject* watched, QEvent* event);
  76
  77 private slots:
  78     void slotZoomLevelChanged();
  79     void cancelPreviews();
  80     void slotShowPreviewChanged();
  81     void slotShowHiddenFilesChanged();
  82     void slotSortingChanged(DolphinView::Sorting sorting);
  83     void slotSortOrderChanged(Qt::SortOrder order);
  84     void slotSortFoldersFirstChanged(bool foldersFirst);
  85     void slotNameFilterChanged(const QString& nameFilter);
  86     void slotRequestVersionControlActions(const KFileItemList& items);
  87     void requestActivation();
  88
  89 private:
  90     DolphinSortFilterProxyModel* proxyModel() const;
  91
  92 private:
  93     QAbstractItemView* m_view;
  94     DolphinViewController* m_dolphinViewController;
  95     ToolTipManager* m_toolTipManager;
  96     KFilePreviewGenerator* m_previewGenerator;
  97     SelectionManager* m_selectionManager;
  98     DolphinViewAutoScroller* m_autoScroller;
  99     DolphinFileItemDelegate* m_fileItemDelegate;
 100     VersionControlObserver* m_versionControlObserver;
 101     FolderExpander* m_folderExpander;
 102 };
 103
 104 #endif
 105