src/dolphindetailsview.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz                                      *
   3  *   peter.penz@gmx.at                                                     *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #ifndef DOLPHINDETAILSVIEW_H
  22 #define DOLPHINDETAILSVIEW_H
  23
  24 #include <dolphinview.h>
  25 #include <QtGui/QStyleOption>
  26 #include <QtGui/QTreeView>
  27 #include <libdolphin_export.h>
  28
  29 class DolphinController;
  30
  31 /**
  32  * @brief Represents the details view which shows the name, size,
  33  *        date, permissions, owner and group of an item.
  34  *
  35  * The width of the columns is automatically adjusted in a way
  36  * that full available width of the view is used by stretching the width
  37  * of the name column.
  38  */
  39 class LIBDOLPHINPRIVATE_EXPORT DolphinDetailsView : public QTreeView
  40 {
  41     Q_OBJECT
  42
  43 public:
  44     explicit DolphinDetailsView(QWidget* parent, DolphinController* controller);
  45     virtual ~DolphinDetailsView();
  46
  47 protected:
  48     virtual bool event(QEvent* event);
  49     virtual QStyleOptionViewItem viewOptions() const;
  50     virtual void contextMenuEvent(QContextMenuEvent* event);
  51     virtual void mousePressEvent(QMouseEvent* event);
  52     virtual void mouseMoveEvent(QMouseEvent* event);
  53     virtual void mouseReleaseEvent(QMouseEvent* event);
  54     virtual void dragEnterEvent(QDragEnterEvent* event);
  55     virtual void dragLeaveEvent(QDragLeaveEvent* event);
  56     virtual void dragMoveEvent(QDragMoveEvent* event);
  57     virtual void dropEvent(QDropEvent* event);
  58     virtual void paintEvent(QPaintEvent* event);
  59     virtual void keyPressEvent(QKeyEvent* event);
  60
  61 private slots:
  62     /**
  63      * Sets the sort indicator section of the header view
  64      * corresponding to \a sorting.
  65      */
  66     void setSortIndicatorSection(DolphinView::Sorting sorting);
  67
  68     /**
  69      * Sets the sort indicator order of the header view
  70      * corresponding to \a sortOrder.
  71      */
  72     void setSortIndicatorOrder(Qt::SortOrder sortOrder);
  73
  74     /**
  75      * Synchronizes the sorting state of the Dolphin menu 'View -> Sort'
  76      * with the current state of the details view.
  77      * @param column Index of the current sorting column.
  78      */
  79     void synchronizeSortingState(int column);
  80
  81     /**
  82      * Is invoked when the mouse cursor has entered an item. The controller
  83      * gets informed to emit the itemEntered() signal if the mouse cursor
  84      * is above the name column. Otherwise the controller gets informed
  85      * to emit the itemViewportEntered() signal (all other columns should
  86      * behave as viewport area).
  87      */
  88     void slotEntered(const QModelIndex& index);
  89
  90     /**
  91      * Updates the destination \a m_elasticBandDestination from
  92      * the elastic band to the current mouse position and triggers
  93      * an update.
  94      */
  95     void updateElasticBand();
  96
  97     /**
  98      * Returns the rectangle for the elastic band dependent from the
  99      * origin \a m_elasticBandOrigin, the current destination
 100      * \a m_elasticBandDestination and the viewport position.
 101      */
 102     QRect elasticBandRect() const;
 103
 104     void zoomIn();
 105     void zoomOut();
 106
 107     /**
 108      * Called by QTreeView when an item is activated (clicked or double-clicked)
 109      */
 110     void slotItemActivated(const QModelIndex& index);
 111
 112 private:
 113     bool isZoomInPossible() const;
 114     bool isZoomOutPossible() const;
 115
 116     /**
 117      * Updates the size of the decoration dependent on the
 118      * icon size of the DetailsModeSettings. The controller
 119      * will get informed about possible zoom in/zoom out
 120      * operations.
 121      */
 122     void updateDecorationSize();
 123
 124     /** Return the upper left position in pixels of the viewport content. */
 125     QPoint contentsPos() const;
 126
 127 private:
 128     DolphinController* m_controller;
 129     QStyleOptionViewItem m_viewOptions;
 130
 131     bool m_dragging;   // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 132     QRect m_dropRect;  // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 133
 134     bool m_showElasticBand;
 135     QPoint m_elasticBandOrigin;
 136     QPoint m_elasticBandDestination;
 137 };
 138
 139 #endif