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 <QTreeView>
  26 #include <libdolphin_export.h>
  27
  28 class DolphinController;
  29
  30 /**
  31  * @brief Represents the details view which shows the name, size,
  32  *        date, permissions, owner and group of an item.
  33  *
  34  * The width of the columns is automatically adjusted in a way
  35  * that full available width of the view is used by stretching the width
  36  * of the name column.
  37  */
  38 class LIBDOLPHINPRIVATE_EXPORT DolphinDetailsView : public QTreeView
  39 {
  40     Q_OBJECT
  41
  42 public:
  43     explicit DolphinDetailsView(QWidget* parent, DolphinController* controller);
  44     virtual ~DolphinDetailsView();
  45
  46 protected:
  47     virtual bool event(QEvent* event);
  48     virtual QStyleOptionViewItem viewOptions() const;
  49     virtual void contextMenuEvent(QContextMenuEvent* event);
  50     virtual void mousePressEvent(QMouseEvent* event);
  51     virtual void mouseMoveEvent(QMouseEvent* event);
  52     virtual void mouseReleaseEvent(QMouseEvent* event);
  53     virtual void startDrag(Qt::DropActions supportedActions);
  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     virtual void resizeEvent(QResizeEvent* event);
  61
  62 private slots:
  63     /**
  64      * Sets the sort indicator section of the header view
  65      * corresponding to \a sorting.
  66      */
  67     void setSortIndicatorSection(DolphinView::Sorting sorting);
  68
  69     /**
  70      * Sets the sort indicator order of the header view
  71      * corresponding to \a sortOrder.
  72      */
  73     void setSortIndicatorOrder(Qt::SortOrder sortOrder);
  74
  75     /**
  76      * Synchronizes the sorting state of the Dolphin menu 'View -> Sort'
  77      * with the current state of the details view.
  78      * @param column Index of the current sorting column.
  79      */
  80     void synchronizeSortingState(int column);
  81
  82     /**
  83      * Is invoked when the mouse cursor has entered an item. The controller
  84      * gets informed to emit the itemEntered() signal if the mouse cursor
  85      * is above the name column. Otherwise the controller gets informed
  86      * to emit the itemViewportEntered() signal (all other columns should
  87      * behave as viewport area).
  88      */
  89     void slotEntered(const QModelIndex& index);
  90
  91     /**
  92      * Updates the destination \a m_elasticBandDestination from
  93      * the elastic band to the current mouse position and triggers
  94      * an update.
  95      */
  96     void updateElasticBand();
  97
  98     /**
  99      * Returns the rectangle for the elastic band dependent from the
 100      * origin \a m_elasticBandOrigin, the current destination
 101      * \a m_elasticBandDestination and the viewport position.
 102      */
 103     QRect elasticBandRect() const;
 104
 105     void zoomIn();
 106     void zoomOut();
 107
 108     /**
 109      * Called by QTreeView when an item is activated (clicked or double-clicked)
 110      */
 111     void triggerItem(const QModelIndex& index);
 112
 113     /**
 114      * Opens a context menu at the position \a pos and allows to
 115      * configure the visibility of the header columns.
 116      */
 117     void configureColumns(const QPoint& pos);
 118
 119     void updateColumnVisibility();
 120
 121 private:
 122     bool isZoomInPossible() const;
 123     bool isZoomOutPossible() const;
 124
 125     /**
 126      * Updates the size of the decoration dependent on the
 127      * icon size of the DetailsModeSettings. The controller
 128      * will get informed about possible zoom in/zoom out
 129      * operations.
 130      */
 131     void updateDecorationSize();
 132
 133     /** Return the upper left position in pixels of the viewport content. */
 134     QPoint contentsPos() const;
 135
 136     KFileItem itemForIndex(const QModelIndex& index) const;
 137
 138     KFileItemDelegate::Information infoForColumn(int columnIndex) const;
 139
 140     /**
 141      * Resizes all columns in a way to use the whole available width of the view.
 142      */
 143     void resizeColumns();
 144
 145 private:
 146     DolphinController* m_controller;
 147
 148     QFont m_font;
 149     QSize m_decorationSize;
 150
 151     bool m_dragging;   // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 152     QRect m_dropRect;  // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 153
 154     bool m_showElasticBand;
 155     QPoint m_elasticBandOrigin;
 156     QPoint m_elasticBandDestination;
 157 };
 158
 159 #endif