src/QY2ComboTabWidget.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                          contributed Qt widgets                      |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       QY2ComboTabWidget.cc
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17   This is a pure Qt widget - it can be used independently of YaST2.
  18
  19 /-*/
  20
  21
  22 #include <QComboBox>
  23 #include <QLabel>
  24 #include <QStackedWidget>
  25 #include <QHBoxLayout>
  26
  27 #include <QFrame>
  28
  29 #define y2log_component "qt-pkg"
  30 #include <ycp/y2log.h>
  31
  32 #include "QY2ComboTabWidget.h"
  33
  34
  35 #define SPACING                 6       // between subwidgets
  36 #define MARGIN                  4       // around the widget
  37
  38
  39
  40 QY2ComboTabWidget::QY2ComboTabWidget( const QString &   label,
  41                                       QWidget *         parent,
  42                                       const char *      name )
  43     : QWidget(parent)
  44 {
  45     QHBoxLayout *hbox = new QHBoxLayout(this);
  46 //     hbox->setFrameStyle( QFrame::Panel | QFrame::Raised );
  47 //     hbox->setLineWidth(2);
  48 //     hbox->setMidLineWidth(2);
  49     hbox->setSpacing( SPACING );
  50     hbox->setMargin ( MARGIN  );
  51
  52     Q_CHECK_PTR( hbox );
  53     //this->setSpacing( SPACING );
  54     this->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) ); // hor/vert
  55
  56
  57     combo_label = new QLabel(label);
  58     hbox->addWidget(combo_label);
  59     Q_CHECK_PTR( combo_label );
  60
  61     combo_box = new QComboBox( this );
  62     Q_CHECK_PTR( combo_box );
  63     hbox->addWidget(combo_box);
  64     combo_label->setBuddy( combo_box );
  65     combo_box->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) ); // hor/vert
  66     connect( combo_box, SIGNAL( activated( int ) ),
  67              this,      SLOT  ( showPage ( int ) ) );
  68
  69     widget_stack = new QStackedWidget( this );
  70     Q_CHECK_PTR( widget_stack );
  71 }
  72
  73
  74
  75 QY2ComboTabWidget::~QY2ComboTabWidget()
  76 {
  77
  78 }
  79
  80
  81 void
  82 QY2ComboTabWidget::addPage( const QString & page_label, QWidget * new_page )
  83 {
  84     pages.insert( combo_box->count(), new_page );
  85     combo_box->addItem( page_label );
  86     widget_stack->addWidget( new_page );
  87
  88     if ( ! widget_stack->currentWidget() )
  89         widget_stack->setCurrentWidget( new_page );
  90 }
  91
  92
  93 void
  94 QY2ComboTabWidget::showPage( int index )
  95 {
  96     QWidget * page = pages[ index ];
  97
  98     if ( page )
  99     {
 100         widget_stack->setCurrentWidget( page );
 101         // y2debug( "Changing current page" );
 102         emit currentChanged( page );
 103     }
 104     else
 105     {
 106         qWarning( "QY2ComboTabWidget: Page #%d not found", index );
 107         return;
 108     }
 109 }
 110
 111
 112 void
 113 QY2ComboTabWidget::showPage( QWidget * page )
 114 {
 115     widget_stack->setCurrentWidget( page );
 116
 117     if ( page == pages[ combo_box->currentIndex() ] )
 118     {
 119         // Shortcut: If the requested page is the one that belongs to the item
 120         // currently selected in the combo box, don't bother searching the
 121         // correct combo box item.
 122         return;
 123     }
 124
 125
 126     // Search the dict for this page
 127
 128     QHashIterator<int, QWidget *> it( pages );
 129
 130     while ( it.hasNext() )
 131     {
 132         if ( page == it.value() )
 133         {
 134             combo_box->setCurrentIndex( it.key() );
 135             return;
 136         }
 137
 138         it.next();
 139     }
 140
 141     // If we come this far, that page isn't present in the dict.
 142
 143     qWarning( "QY2ComboTabWidget: Page not found" );
 144 }
 145
 146
 147
 148 #include "QY2ComboTabWidget.moc"