src/dolphiniconsview.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 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 DOLPHINICONSVIEW_H
  21 #define DOLPHINICONSVIEW_H
  22
  23 #include <QListView>
  24 #include <QStyleOptionViewItem>
  25
  26 class DolphinController;
  27 class DolphinView;
  28
  29 /**
  30  * @brief Represents the view, where each item is shown as an icon.
  31  *
  32  * It is also possible that instead of the icon a preview of the item
  33  * content is shown.
  34  */
  35 class DolphinIconsView : public QListView
  36 {
  37     Q_OBJECT
  38
  39 public:
  40     explicit DolphinIconsView(QWidget* parent, DolphinController* controller);
  41     virtual ~DolphinIconsView();
  42
  43 protected:
  44     virtual QStyleOptionViewItem viewOptions() const;
  45     virtual void contextMenuEvent(QContextMenuEvent* event);
  46     virtual void mouseReleaseEvent(QMouseEvent* event);
  47     virtual void dragEnterEvent(QDragEnterEvent* event);
  48     virtual void dropEvent(QDropEvent* event);
  49
  50 private slots:
  51     /**
  52      * Updates the size of the grid
  53      * depending on the state of \a showPreview.
  54      */
  55     void updateGridSize(bool showPreview);
  56
  57     void zoomIn();
  58     void zoomOut();
  59
  60 private:
  61     bool isZoomInPossible() const;
  62     bool isZoomOutPossible() const;
  63
  64     /** Returns the increased icon size for the size \a size. */
  65     int increasedIconSize(int size) const;
  66
  67     /** Returns the decreased icon size for the size \a size. */
  68     int decreasedIconSize(int size) const;
  69
  70 private:
  71     DolphinController* m_controller;
  72     QStyleOptionViewItem m_viewOptions;
  73 };
  74
  75 #endif