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 class SelectionManager;
  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 wheelEvent(QWheelEvent* event);
  63     virtual void currentChanged(const QModelIndex& current, const QModelIndex& previous);
  64     virtual bool eventFilter(QObject* watched, QEvent* event);
  65
  66 private slots:
  67     /**
  68      * Sets the sort indicator section of the header view
  69      * corresponding to \a sorting.
  70      */
  71     void setSortIndicatorSection(DolphinView::Sorting sorting);
  72
  73     /**
  74      * Sets the sort indicator order of the header view
  75      * corresponding to \a sortOrder.
  76      */
  77     void setSortIndicatorOrder(Qt::SortOrder sortOrder);
  78
  79     /**
  80      * Synchronizes the sorting state of the Dolphin menu 'View -> Sort'
  81      * with the current state of the details view.
  82      * @param column Index of the current sorting column.
  83      */
  84     void synchronizeSortingState(int column);
  85
  86     /**
  87      * Is invoked when the mouse cursor has entered an item. The controller
  88      * gets informed to emit the itemEntered() signal if the mouse cursor
  89      * is above the name column. Otherwise the controller gets informed
  90      * to emit the itemViewportEntered() signal (all other columns should
  91      * behave as viewport area).
  92      */
  93     void slotEntered(const QModelIndex& index);
  94
  95     /**
  96      * Updates the destination \a m_elasticBandDestination from
  97      * the elastic band to the current mouse position and triggers
  98      * an update.
  99      */
 100     void updateElasticBand();
 101
 102     /**
 103      * Returns the rectangle for the elastic band dependent from the
 104      * origin \a m_elasticBandOrigin, the current destination
 105      * \a m_elasticBandDestination and the viewport position.
 106      */
 107     QRect elasticBandRect() const;
 108
 109     void zoomIn();
 110     void zoomOut();
 111
 112     /**
 113      * Opens a context menu at the position \a pos and allows to
 114      * configure the visibility of the header columns.
 115      */
 116     void configureColumns(const QPoint& pos);
 117
 118     void updateColumnVisibility();
 119
 120     /**
 121      * Disables the automatical resizing of columns, if the user has resized the columns
 122      * with the mouse.
 123      */
 124     void slotHeaderSectionResized(int logicalIndex, int oldSize, int newSize);
 125
 126     /**
 127      * Disables the automatical resizing of the columns. Per default all columns
 128      * are resized to use the maximum available width of the view as good as possible.
 129      */
 130     void disableAutoResizing();
 131
 132     void requestActivation();
 133
 134     void updateFont();
 135
 136 private:
 137     bool isZoomInPossible() const;
 138     bool isZoomOutPossible() const;
 139
 140     /**
 141      * Updates the size of the decoration dependent on the
 142      * icon size of the DetailsModeSettings. The controller
 143      * will get informed about possible zoom in/zoom out
 144      * operations.
 145      */
 146     void updateDecorationSize();
 147
 148     /** Return the upper left position in pixels of the viewport content. */
 149     QPoint contentsPos() const;
 150
 151     KFileItemDelegate::Information infoForColumn(int columnIndex) const;
 152
 153     /**
 154      * Resizes all columns in a way to use the whole available width of the view.
 155      */
 156     void resizeColumns();
 157
 158 private:
 159         bool m_autoResize;  // if true, the columns are resized automatically to the available width
 160
 161     DolphinController* m_controller;
 162     SelectionManager* m_selectionManager;
 163
 164     QFont m_font;
 165     QSize m_decorationSize;
 166
 167     QRect m_dropRect;
 168
 169     bool m_showElasticBand;
 170     QPoint m_elasticBandOrigin;
 171     QPoint m_elasticBandDestination;
 172 };
 173
 174 #endif