workspace/plasma/applets/devicenotifier/notifierview.h

   1 /*  Copyright 2007 by Alexis Ménard <darktears31@gmail.com>
   2
   3     This library is free software; you can redistribute it and/or
   4     modify it under the terms of the GNU Library General Public
   5     License as published by the Free Software Foundation; either
   6     version 2 of the License, or (at your option) any later version.
   7
   8     This library is distributed in the hope that it will be useful,
   9     but WITHOUT ANY WARRANTY; without even the implied warranty of
  10     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11     Library General Public License for more details.
  12
  13     You should have received a copy of the GNU Library General Public License
  14     along with this library; see the file COPYING.LIB.  If not, write to
  15     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  16     Boston, MA 02110-1301, USA.
  17 */
  18 #ifndef NOTIFIERVIEW_H
  19 #define NOTIFIERVIEW_H
  20
  21 // Qt
  22 #include <QTreeView>
  23
  24 class QModelIndex;
  25
  26 namespace Notifier
  27 {
  28   /**
  29   * @short The view used to display information in a device popup
  30   *
  31   */
  32   class NotifierView : public QTreeView
  33   {
  34   Q_OBJECT
  35
  36   public:
  37       /**
  38       * Constructor of view
  39       * @param parent the parent of this object
  40       **/
  41       NotifierView(QWidget *parent = 0);
  42
  43       /**
  44       * Default destructor
  45       **/
  46       virtual ~NotifierView();
  47
  48       /**
  49        * Creates rects in widget coordinates for the model
  50        */
  51       void calculateRects();
  52
  53   protected:
  54       /**
  55       * Call when the view is resized
  56       * @param event the resize event
  57       **/
  58       void resizeEvent(QResizeEvent * event);
  59
  60       /**
  61       * Call when a mouse move event is catch
  62       * @param event the mouse event
  63       **/
  64       void mouseMoveEvent(QMouseEvent *event);
  65
  66       /**
  67        * Call when a mouse move event is catch
  68        * @param event the mouse event
  69        **/
  70       void mousePressEvent(QMouseEvent *event);
  71
  72       /**
  73       * Call when cursor leave the widget
  74       * @param event the leave event
  75       **/
  76       void leaveEvent(QEvent *event);
  77
  78       /**
  79       * Move the cursor in the way describe by cursorAction
  80       * @param cursorAction the cursor action
  81       **/
  82       QModelIndex moveCursor(CursorAction cursorAction,Qt::KeyboardModifiers );
  83
  84       /**
  85       * Call when the view is paint
  86       * @param event the paint event
  87       **/
  88       void paintEvent(QPaintEvent *event);
  89
  90       /**
  91       * Paint a header item
  92       * @param painter the painter used to paint
  93       * @param itemRect the rect where the item will be paint
  94       * @param index the QModelIndex that represent the item to paint
  95       **/
  96       void paintHeaderItem(QPainter &painter,const QRect &itemRect,const QModelIndex &index);
  97
  98       /**
  99       * Paint an item in the view by using the delegate
 100       * @param painter the painter used to paint
 101       * @param itemRect the rect where the item will be paint
 102       * @param index the QModelIndex that represent the item to paint
 103       **/
 104       void paintItem(QPainter &painter,const QRect &itemRect,const QModelIndex &index);
 105
 106       /**
 107       * Return an index at the position "point" if exist otherwise return a default
 108       * constructed value of QModelIndex
 109       * @param point the point where we will looking for an item
 110       **/
 111       QModelIndex indexAt(const QPoint& point) const;
 112
 113       static const int HEADER_LEFT_MARGIN = 5;
 114       static const int HEADER_TOP_MARGIN = 5;
 115       static const int HEADER_HEIGHT = 35;
 116       static const int COLUMN_EJECT_MARGIN = 5;
 117       static const int COLUMN_EJECT_SIZE = 50;
 118       static const int TOP_OFFSET = 5;
 119
 120   private:
 121       ///The hovered index
 122       QPersistentModelIndex m_hoveredIndex;
 123       QHash<QModelIndex,QRect> itemRects;
 124   };
 125
 126 }
 127 #endif // NOTIFIERVIEW_H