src/YQRadioButtonGroup.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQRadioButtonGroup.cc
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17 /-*/
  18
  19
  20 #include <qradiobutton.h>
  21 #include <q3buttongroup.h>
  22 #define y2log_component "qt-ui"
  23 #include <ycp/y2log.h>
  24
  25 #include "YQRadioButtonGroup.h"
  26 #include "YQRadioButton.h"
  27
  28
  29 YQRadioButtonGroup::YQRadioButtonGroup( YWidget * parent )
  30     : QWidget( (QWidget *) parent->widgetRep() )
  31     , YRadioButtonGroup( parent )
  32     , _recursive( false )
  33 {
  34     setWidgetRep( this );
  35 }
  36
  37
  38 YQRadioButtonGroup::~YQRadioButtonGroup()
  39 {
  40     // NOP
  41 }
  42
  43
  44 void
  45 YQRadioButtonGroup::addRadioButton( YRadioButton * button )
  46 {
  47     YRadioButtonGroup::addRadioButton( button );
  48
  49     if ( button->value() )              // if this new button is active
  50     {
  51         uncheckOtherButtons( button );  // make it the only active
  52     }
  53
  54     QRadioButton * radio_button = ( ( YQRadioButton * ) button )->getQtButton();
  55
  56     connect ( radio_button,     SIGNAL ( toggled           ( bool ) ),
  57               this,             SLOT   ( radioButtonClicked( bool ) ) );
  58 }
  59
  60
  61 void
  62 YQRadioButtonGroup::setEnabled( bool enabled )
  63 {
  64     QWidget::setEnabled( enabled );
  65     YWidget::setEnabled( enabled );
  66 }
  67
  68
  69 void
  70 YQRadioButtonGroup::setSize( int newWidth, int newHeight )
  71 {
  72     resize( newWidth, newHeight );
  73     YRadioButtonGroup::setSize( newWidth, newHeight );
  74 }
  75
  76
  77 void
  78 YQRadioButtonGroup::radioButtonClicked( bool newState )
  79 {
  80     // Prevent infinite recursion: YQRadioButton::setValue() might cause Qt
  81     // signals that would cause recursion to this place.
  82
  83     if ( _recursive )
  84         return;
  85
  86     _recursive = true;
  87
  88     QRadioButton * senderButton = (QRadioButton *) sender();
  89
  90     // Implement radio box behaviour: Uncheck all other radio buttons
  91
  92     for ( YRadioButtonListConstIterator it = radioButtonsBegin();
  93           it != radioButtonsEnd();
  94           ++it )
  95     {
  96         YQRadioButton * radioButton = dynamic_cast<YQRadioButton *> (*it);
  97
  98         if ( radioButton )
  99         {
 100             if ( radioButton->getQtButton() == senderButton )
 101             {
 102                 // If this button has been clicked, it is to be the RadioBox's
 103                 // active button - regardless of newState. This is to avoid
 104                 // RadioBoxes where no single button is active; otherwise the
 105                 // second click would deactivate the only active button.
 106
 107                 radioButton->setValue( true );
 108             }
 109             else
 110             {
 111                 radioButton->setValue( false );
 112             }
 113         }
 114     }
 115
 116     _recursive = false;
 117 }
 118
 119
 120 #include "YQRadioButtonGroup.moc"