src/views/dolphiniconsview.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz19@gmail.com>        *
   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 DOLPHINICONSVIEW_H
  21 #define DOLPHINICONSVIEW_H
  22
  23 #include <KCategorizedView>
  24
  25 #include <KFileItem>
  26 #include <KFileItemDelegate>
  27
  28 #include <QFont>
  29 #include <QSize>
  30 #include <QStyleOption>
  31
  32 #include <libdolphin_export.h>
  33
  34 class DolphinViewController;
  35 class DolphinCategoryDrawer;
  36 class DolphinSortFilterProxyModel;
  37 class ViewExtensionsFactory;
  38 class ViewModeController;
  39
  40 /**
  41  * @brief Represents the view, where each item is shown as an icon.
  42  *
  43  * It is also possible that instead of the icon a preview of the item
  44  * content is shown.
  45  */
  46 class LIBDOLPHINPRIVATE_EXPORT DolphinIconsView : public KCategorizedView
  47 {
  48     Q_OBJECT
  49
  50 public:
  51     /**
  52      * @param parent                Parent widget.
  53      * @param dolphinViewController Allows the DolphinIconsView to control the
  54      *                              DolphinView in a limited way.
  55      * @param viewModeController    Controller that is used by the DolphinView
  56      *                              to control the DolphinIconsView. The DolphinIconsView
  57      *                              only has read access to the controller.
  58      * @param model                 Directory that is shown.
  59      */
  60     explicit DolphinIconsView(QWidget* parent,
  61                               DolphinViewController* dolphinViewController,
  62                               const ViewModeController* viewModeController,
  63                               DolphinSortFilterProxyModel* proxyModel);
  64     virtual ~DolphinIconsView();
  65
  66 protected slots:
  67     virtual void dataChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight);
  68
  69 protected:
  70     virtual QStyleOptionViewItem viewOptions() const;
  71     virtual void contextMenuEvent(QContextMenuEvent* event);
  72     virtual void mousePressEvent(QMouseEvent* event);
  73     virtual void startDrag(Qt::DropActions supportedActions);
  74     virtual void dragEnterEvent(QDragEnterEvent* event);
  75     virtual void dragLeaveEvent(QDragLeaveEvent* event);
  76     virtual void dragMoveEvent(QDragMoveEvent* event);
  77     virtual void dropEvent(QDropEvent* event);
  78     virtual QModelIndex moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifiers);
  79     virtual void keyPressEvent(QKeyEvent* event);
  80     virtual void wheelEvent(QWheelEvent* event);
  81     virtual void showEvent(QShowEvent* event);
  82     virtual void leaveEvent(QEvent* event);
  83     virtual void currentChanged(const QModelIndex& current, const QModelIndex& previous);
  84     virtual void resizeEvent(QResizeEvent* event);
  85
  86 private slots:
  87     void slotShowPreviewChanged();
  88     void slotAdditionalInfoChanged();
  89     void setZoomLevel(int level);
  90     void requestActivation();
  91     void slotGlobalSettingsChanged(int category);
  92     void categoryDrawerActionRequested(int action, const QModelIndex &index);
  93
  94 private:
  95     /**
  96      * Updates the size of the grid depending on the state
  97      * of \a showPreview and \a additionalInfoCount.
  98      */
  99     void updateGridSize(bool showPreview, int additionalInfoCount);
 100
 101     /**
 102      * Returns the number of additional information lines that should
 103      * be shown below the item name.
 104      */
 105     int additionalInfoCount() const;
 106
 107 private:
 108     DolphinViewController* m_dolphinViewController;
 109     DolphinCategoryDrawer* m_categoryDrawer;
 110     ViewExtensionsFactory* m_extensionsFactory;
 111
 112     QFont m_font;
 113     QSize m_decorationSize;
 114     QStyleOptionViewItem::Position m_decorationPosition;
 115     Qt::Alignment m_displayAlignment;
 116
 117     QSize m_itemSize;
 118     QRect m_dropRect;
 119 };
 120
 121 #endif