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     virtual void wheelEvent(QWheelEvent* event);
  62
  63 private slots:
  64     /**
  65      * Sets the sort indicator section of the header view
  66      * corresponding to \a sorting.
  67      */
  68     void setSortIndicatorSection(DolphinView::Sorting sorting);
  69
  70     /**
  71      * Sets the sort indicator order of the header view
  72      * corresponding to \a sortOrder.
  73      */
  74     void setSortIndicatorOrder(Qt::SortOrder sortOrder);
  75
  76     /**
  77      * Synchronizes the sorting state of the Dolphin menu 'View -> Sort'
  78      * with the current state of the details view.
  79      * @param column Index of the current sorting column.
  80      */
  81     void synchronizeSortingState(int column);
  82
  83     /**
  84      * Is invoked when the mouse cursor has entered an item. The controller
  85      * gets informed to emit the itemEntered() signal if the mouse cursor
  86      * is above the name column. Otherwise the controller gets informed
  87      * to emit the itemViewportEntered() signal (all other columns should
  88      * behave as viewport area).
  89      */
  90     void slotEntered(const QModelIndex& index);
  91
  92     /**
  93      * Updates the destination \a m_elasticBandDestination from
  94      * the elastic band to the current mouse position and triggers
  95      * an update.
  96      */
  97     void updateElasticBand();
  98
  99     /**
 100      * Returns the rectangle for the elastic band dependent from the
 101      * origin \a m_elasticBandOrigin, the current destination
 102      * \a m_elasticBandDestination and the viewport position.
 103      */
 104     QRect elasticBandRect() const;
 105
 106     void zoomIn();
 107     void zoomOut();
 108
 109     /**
 110      * Opens a context menu at the position \a pos and allows to
 111      * configure the visibility of the header columns.
 112      */
 113     void configureColumns(const QPoint& pos);
 114
 115     void updateColumnVisibility();
 116
 117     /**
 118      * Disables the automatical resizing of columns, if the user has resized the columns
 119      * with the mouse.
 120      */
 121     void slotHeaderSectionResized(int logicalIndex, int oldSize, int newSize);
 122
 123     /**
 124      * Disables the automatical resizing of the columns. Per default all columns
 125      * are resized to use the maximum available width of the view as good as possible.
 126      */
 127     void disableAutoResizing();
 128
 129     void requestActivation();
 130
 131     void updateFont();
 132
 133 private:
 134     bool isZoomInPossible() const;
 135     bool isZoomOutPossible() const;
 136
 137     /**
 138      * Updates the size of the decoration dependent on the
 139      * icon size of the DetailsModeSettings. The controller
 140      * will get informed about possible zoom in/zoom out
 141      * operations.
 142      */
 143     void updateDecorationSize();
 144
 145     /** Return the upper left position in pixels of the viewport content. */
 146     QPoint contentsPos() const;
 147
 148     KFileItemDelegate::Information infoForColumn(int columnIndex) const;
 149
 150     /**
 151      * Resizes all columns in a way to use the whole available width of the view.
 152      */
 153     void resizeColumns();
 154
 155 private:
 156         bool m_autoResize;  // if true, the columns are resized automatically to the available width
 157
 158     DolphinController* m_controller;
 159
 160     QFont m_font;
 161     QSize m_decorationSize;
 162
 163     bool m_dragging;   // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 164     QRect m_dropRect;  // TODO: remove this property when the issue #160611 is solved in Qt 4.4
 165
 166     bool m_showElasticBand;
 167     QPoint m_elasticBandOrigin;
 168     QPoint m_elasticBandDestination;
 169 };
 170
 171 #endif