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
  60 private slots:
  61     /**
  62      * Sets the sort indicator section of the header view
  63      * corresponding to \a sorting.
  64      */
  65     void setSortIndicatorSection(DolphinView::Sorting sorting);
  66
  67     /**
  68      * Sets the sort indicator order of the header view
  69      * corresponding to \a sortOrder.
  70      */
  71     void setSortIndicatorOrder(Qt::SortOrder sortOrder);
  72
  73     /**
  74      * Synchronizes the sorting state of the Dolphin menu 'View -> Sort'
  75      * with the current state of the details view.
  76      * @param column Index of the current sorting column.
  77      */
  78     void synchronizeSortingState(int column);
  79
  80     /**
  81      * Is invoked when the mouse cursor has entered an item. The controller
  82      * gets informed to emit the itemEntered() signal if the mouse cursor
  83      * is above the name column. Otherwise the controller gets informed
  84      * to emit the itemViewportEntered() signal (all other columns should
  85      * behave as viewport area).
  86      */
  87     void slotEntered(const QModelIndex& index);
  88
  89     /**
  90      * Updates the destination \a m_elasticBandDestination from
  91      * the elastic band to the current mouse position and triggers
  92      * an update.
  93      */
  94     void updateElasticBand();
  95
  96     /**
  97      * Returns the rectangle for the elastic band dependent from the
  98      * origin \a m_elasticBandOrigin, the current destination
  99      * \a m_elasticBandDestination and the viewport position.
 100      */
 101     QRect elasticBandRect() const;
 102
 103     void zoomIn();
 104     void zoomOut();
 105
 106 private:
 107     bool isZoomInPossible() const;
 108     bool isZoomOutPossible() const;
 109
 110     /**
 111      * Updates the size of the decoration dependent on the
 112      * icon size of the DetailsModeSettings. The controller
 113      * will get informed about possible zoom in/zoom out
 114      * operations.
 115      */
 116     void updateDecorationSize();
 117
 118     /** Return the upper left position in pixels of the viewport content. */
 119     QPoint contentsPos() const;
 120
 121 private:
 122     DolphinController* m_controller;
 123     QStyleOptionViewItem m_viewOptions;
 124
 125     bool m_dragging;   // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 126     QRect m_dropRect;  // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 127
 128     bool m_showElasticBand;
 129     QPoint m_elasticBandOrigin;
 130     QPoint m_elasticBandDestination;
 131 };
 132
 133 #endif