src/YQMenuButton.h

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQMenuButton.h
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17 /-*/
  18
  19
  20 #ifndef YQMenuButton_h
  21 #define YQMenuButton_h
  22
  23 #include <qwidget.h>
  24 #include "YMenuButton.h"
  25
  26
  27 class QPushButton;
  28 class QPopupMenu;
  29
  30 class YQMenuButton : public QWidget, public YMenuButton
  31 {
  32     Q_OBJECT
  33
  34 public:
  35     /**
  36      * Constructor.
  37      **/
  38     YQMenuButton( YWidget *             parent,
  39                   const string &        label );
  40
  41     /**
  42      * Destructor.
  43      **/
  44     virtual ~YQMenuButton();
  45
  46     /**
  47      * Change the label on the button.
  48      *
  49      * Reimplemented from YMenuButton / YSelectionWidget.
  50      **/
  51     virtual void setLabel( const string & label );
  52
  53     /**
  54      * Rebuild the displayed menu tree from the internally stored YMenuItems.
  55      *
  56      * Implemented from YMenuButton.
  57      **/
  58     virtual void rebuildMenuTree();
  59
  60     /**
  61      * Set enabled / disabled state.
  62      *
  63      * Reimplemented from YWidget.
  64      **/
  65     virtual void setEnabled( bool enabled );
  66
  67     /**
  68      * Preferred width of the widget.
  69      *
  70      * Reimplemented from YWidget.
  71      **/
  72     virtual int preferredWidth();
  73
  74     /**
  75      * Preferred height of the widget.
  76      *
  77      * Reimplemented from YWidget.
  78      **/
  79     virtual int preferredHeight();
  80
  81     /**
  82      * Set the new size of the widget.
  83      *
  84      * Reimplemented from YWidget.
  85      **/
  86     virtual void setSize( int newWidth, int newHeight );
  87
  88     /**
  89      * Accept the keyboard focus.
  90      **/
  91     virtual bool setKeyboardFocus();
  92
  93
  94 protected slots:
  95
  96     /**
  97      * Triggered when any menu item is activated.
  98      **/
  99     void menuEntryActivated( int menuItemIndex );
 100
 101     /**
 102      * Triggered via menuEntryActivated() by zero timer to get back in sync
 103      * with the Qt event loop.
 104      **/
 105     void returnNow();
 106
 107
 108 protected:
 109
 110     /**
 111      * Recursively insert menu items into 'menu' from iterator 'begin' to iterator 'end'.
 112      **/
 113     void rebuildMenuTree( QPopupMenu * menu, YItemIterator begin, YItemIterator end );
 114
 115
 116     //
 117     // Data members
 118     //
 119
 120     YMenuItem *         _selectedItem;
 121     QPushButton *       _qt_button;
 122 };
 123
 124 #endif // YQMenuButton_h