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