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 startDrag(Qt::DropActions supportedActions);
  55     virtual void dragEnterEvent(QDragEnterEvent* event);
  56     virtual void dragLeaveEvent(QDragLeaveEvent* event);
  57     virtual void dragMoveEvent(QDragMoveEvent* event);
  58     virtual void dropEvent(QDropEvent* event);
  59     virtual void paintEvent(QPaintEvent* event);
  60     virtual void keyPressEvent(QKeyEvent* event);
  61     virtual void resizeEvent(QResizeEvent* event);
  62     virtual void closeEvent(QCloseEvent* event);
  63
  64 private slots:
  65     /**
  66      * Sets the sort indicator section of the header view
  67      * corresponding to \a sorting.
  68      */
  69     void setSortIndicatorSection(DolphinView::Sorting sorting);
  70
  71     /**
  72      * Sets the sort indicator order of the header view
  73      * corresponding to \a sortOrder.
  74      */
  75     void setSortIndicatorOrder(Qt::SortOrder sortOrder);
  76
  77     /**
  78      * Synchronizes the sorting state of the Dolphin menu 'View -> Sort'
  79      * with the current state of the details view.
  80      * @param column Index of the current sorting column.
  81      */
  82     void synchronizeSortingState(int column);
  83
  84     /**
  85      * Is invoked when the mouse cursor has entered an item. The controller
  86      * gets informed to emit the itemEntered() signal if the mouse cursor
  87      * is above the name column. Otherwise the controller gets informed
  88      * to emit the itemViewportEntered() signal (all other columns should
  89      * behave as viewport area).
  90      */
  91     void slotEntered(const QModelIndex& index);
  92
  93     /**
  94      * Updates the destination \a m_elasticBandDestination from
  95      * the elastic band to the current mouse position and triggers
  96      * an update.
  97      */
  98     void updateElasticBand();
  99
 100     /**
 101      * Returns the rectangle for the elastic band dependent from the
 102      * origin \a m_elasticBandOrigin, the current destination
 103      * \a m_elasticBandDestination and the viewport position.
 104      */
 105     QRect elasticBandRect() const;
 106
 107     void zoomIn();
 108     void zoomOut();
 109
 110     /**
 111      * Called by QTreeView when an item is activated (clicked or double-clicked)
 112      */
 113     void triggerItem(const QModelIndex& index);
 114
 115     /**
 116      * Opens a context menu at the position \a pos and allows to
 117      * configure the visibility of the header columns.
 118      */
 119     void configureColumns(const QPoint& pos);
 120
 121     void updateColumnVisibility();
 122
 123 private:
 124     bool isZoomInPossible() const;
 125     bool isZoomOutPossible() const;
 126
 127     /**
 128      * Updates the size of the decoration dependent on the
 129      * icon size of the DetailsModeSettings. The controller
 130      * will get informed about possible zoom in/zoom out
 131      * operations.
 132      */
 133     void updateDecorationSize();
 134
 135     /** Return the upper left position in pixels of the viewport content. */
 136     QPoint contentsPos() const;
 137
 138     KFileItem itemForIndex(const QModelIndex& index) const;
 139
 140     KFileItemDelegate::Information infoForColumn(int columnIndex) const;
 141
 142     /**
 143      * Resizes all columns in a way to use the whole available width of the view.
 144      */
 145     void resizeColumns();
 146
 147 private:
 148     DolphinController* m_controller;
 149     QStyleOptionViewItem m_viewOptions;
 150
 151     bool m_clearAdditionalInfo;
 152
 153     bool m_dragging;   // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 154     QRect m_dropRect;  // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 155
 156     bool m_showElasticBand;
 157     QPoint m_elasticBandOrigin;
 158     QPoint m_elasticBandDestination;
 159 };
 160
 161 #endif