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 #include <QHash>
  26
  27 class QAction;
  28 class QPushButton;
  29 class QMenu;
  30
  31 class YQMenuButton : public QWidget, public YMenuButton
  32 {
  33     Q_OBJECT
  34
  35 public:
  36     /**
  37      * Constructor.
  38      **/
  39     YQMenuButton( YWidget *             parent,
  40                   const string &        label );
  41
  42     /**
  43      * Destructor.
  44      **/
  45     virtual ~YQMenuButton();
  46
  47     /**
  48      * Change the label on the button.
  49      *
  50      * Reimplemented from YMenuButton / YSelectionWidget.
  51      **/
  52     virtual void setLabel( const string & label );
  53
  54     /**
  55      * Rebuild the displayed menu tree from the internally stored YMenuItems.
  56      *
  57      * Implemented from YMenuButton.
  58      **/
  59     virtual void rebuildMenuTree();
  60
  61     /**
  62      * Set enabled / disabled state.
  63      *
  64      * Reimplemented from YWidget.
  65      **/
  66     virtual void setEnabled( bool enabled );
  67
  68     /**
  69      * Preferred width of the widget.
  70      *
  71      * Reimplemented from YWidget.
  72      **/
  73     virtual int preferredWidth();
  74
  75     /**
  76      * Preferred height of the widget.
  77      *
  78      * Reimplemented from YWidget.
  79      **/
  80     virtual int preferredHeight();
  81
  82     /**
  83      * Set the new size of the widget.
  84      *
  85      * Reimplemented from YWidget.
  86      **/
  87     virtual void setSize( int newWidth, int newHeight );
  88
  89     /**
  90      * Accept the keyboard focus.
  91      **/
  92     virtual bool setKeyboardFocus();
  93
  94
  95 protected slots:
  96
  97     /**
  98      * Triggered when any menu item is activated.
  99      **/
 100     void menuEntryActivated( QAction * menuItem );
 101
 102     /**
 103      * Triggered via menuEntryActivated() by zero timer to get back in sync
 104      * with the Qt event loop.
 105      **/
 106     void returnNow();
 107
 108
 109 protected:
 110
 111     /**
 112      * Recursively insert menu items into 'menu' from iterator 'begin' to iterator 'end'.
 113      **/
 114     void rebuildMenuTree( QMenu * menu, YItemIterator begin, YItemIterator end );
 115
 116
 117     //
 118     // Data members
 119     //
 120
 121     YMenuItem *         _selectedItem;
 122     QPushButton *       _qt_button;
 123     QHash<QAction*,int> _serials;
 124 };
 125
 126 #endif // YQMenuButton_h