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     QVBoxLayout *vbox = new QVBoxLayout();
  46     setLayout(vbox);
  47
  48     QHBoxLayout *hbox = new QHBoxLayout();
  49     Q_CHECK_PTR( hbox );
  50 //     hbox->setFrameStyle( QFrame::Panel | QFrame::Raised );
  51 //     hbox->setLineWidth(2);
  52 //     hbox->setMidLineWidth(2);
  53     hbox->setSpacing( SPACING );
  54     hbox->setMargin ( MARGIN  );
  55
  56     vbox->addLayout(hbox);
  57     //this->setSpacing( SPACING );
  58     this->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) ); // hor/vert
  59
  60
  61     combo_label = new QLabel(label);
  62     hbox->addWidget(combo_label);
  63     Q_CHECK_PTR( combo_label );
  64
  65     combo_box = new QComboBox( this );
  66     Q_CHECK_PTR( combo_box );
  67     hbox->addWidget(combo_box);
  68     combo_label->setBuddy( combo_box );
  69     combo_box->setSizePolicy( QSizePolicy( QSizePolicy::Expanding, QSizePolicy::Fixed ) ); // hor/vert
  70     connect( combo_box, SIGNAL( activated( int ) ),
  71              this,      SLOT  ( showPageIndex ( int ) ) );
  72
  73     widget_stack = new QStackedWidget( this );
  74     Q_CHECK_PTR( widget_stack );
  75     vbox->addWidget(widget_stack);
  76 }
  77
  78
  79
  80 QY2ComboTabWidget::~QY2ComboTabWidget()
  81 {
  82
  83 }
  84
  85
  86 void
  87 QY2ComboTabWidget::addPage( const QString & page_label, QWidget * new_page )
  88 {
  89     pages.insert( combo_box->count(), new_page );
  90     combo_box->addItem( page_label );
  91     widget_stack->addWidget( new_page );
  92
  93     if ( ! widget_stack->currentWidget() )
  94         widget_stack->setCurrentWidget( new_page );
  95 }
  96
  97
  98 void
  99 QY2ComboTabWidget::showPageIndex( int index )
 100 {
 101     if ( pages.contains(index) )
 102     {
 103         QWidget * page = pages[ index ];
 104         widget_stack->setCurrentWidget( page );
 105         // y2debug( "Changing current page" );
 106         emit currentChanged( page );
 107     }
 108     else
 109     {
 110         qWarning( "QY2ComboTabWidget: Page #%d not found", index );
 111         return;
 112     }
 113 }
 114
 115
 116 void
 117 QY2ComboTabWidget::showPage( QWidget * page )
 118 {
 119     widget_stack->setCurrentWidget( page );
 120
 121     if ( page == pages[ combo_box->currentIndex() ] )
 122     {
 123           // Shortcut: If the requested page is the one that belongs to the item
 124           // currently selected in the combo box, don't bother searching the
 125           // correct combo box item.
 126           return;
 127     }
 128
 129     // Search the dict for this page
 130
 131     QHashIterator<int, QWidget *> it( pages );
 132
 133     while ( it.hasNext() )
 134     {
 135         it.next();
 136         if ( page == it.value() )
 137         {
 138             combo_box->setCurrentIndex( it.key() );
 139             return;
 140         }
 141     }
 142
 143     // If we come this far, that page isn't present in the dict.
 144
 145     qWarning( "QY2ComboTabWidget: Page not found" );
 146 }
 147
 148
 149
 150 #include "QY2ComboTabWidget.moc"