src/dolphincolumnview.h

   1 /***************************************************************************
   2  *   Copyright (C) 2007 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 DOLPHINCOLUMNVIEW_H
  21 #define DOLPHINCOLUMNVIEW_H
  22
  23 #include <QColumnView>
  24 #include <QStyleOption>
  25
  26 class DolphinController;
  27 class KDirLister;
  28 class KUrl;
  29
  30 /**
  31  * @brief Represents the view, where each directory is show as separate column.
  32  *
  33  * @see DolphinIconsView
  34  * @see DolphinDetailsView
  35  */
  36 class DolphinColumnView : public QColumnView
  37 {
  38     Q_OBJECT
  39
  40 public:
  41     explicit DolphinColumnView(QWidget* parent, DolphinController* controller);
  42     virtual ~DolphinColumnView();
  43
  44 protected:
  45     virtual QAbstractItemView* createColumn(const QModelIndex& index);
  46     virtual void mousePressEvent(QMouseEvent* event);
  47     virtual void dragEnterEvent(QDragEnterEvent* event);
  48     virtual void dropEvent(QDropEvent* event);
  49
  50 private slots:
  51     void zoomIn();
  52     void zoomOut();
  53     void triggerItem(const QModelIndex& index);
  54
  55     /**
  56      * Updates the activation state of all columns, where \a url
  57      * represents the URL of the active column. All operations
  58      * are applied only to the column which is marked as active.
  59      */
  60     void updateColumnsState(const KUrl& url);
  61
  62 private:
  63     bool isZoomInPossible() const;
  64     bool isZoomOutPossible() const;
  65
  66     /**
  67      * Requests the activation for the column \a column. The URL
  68      * navigator will be changed to represent the column.
  69      */
  70     void requestActivation(QWidget* column);
  71
  72     /**
  73      * Updates the size of the decoration dependent on the
  74      * icon size of the ColumnModeSettings. The controller
  75      * will get informed about possible zoom in/zoom out
  76      * operations.
  77      */
  78     void updateDecorationSize();
  79
  80 private:
  81     DolphinController* m_controller;
  82
  83     friend class ColumnWidget;
  84 };
  85
  86 #endif