src/YQSlider.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQSlider.cc
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17 /-*/
  18
  19
  20 #include <qslider.h>
  21 #include <qspinbox.h>
  22 #include <qlabel.h>
  23 #include <QVBoxLayout>
  24
  25 #define y2log_component "qt-ui"
  26 #include <ycp/y2log.h>
  27
  28 #include "utf8.h"
  29 #include "YQUI.h"
  30 #include "YEvent.h"
  31 #include "YQSlider.h"
  32 #include "YQSignalBlocker.h"
  33 #include "YQWidgetCaption.h"
  34
  35
  36 YQSlider::YQSlider( YWidget *           parent,
  37                     const string &      label,
  38                     int                 minValue,
  39                     int                 maxValue,
  40                     int                 initialValue,
  41                     bool                reverseLayout )
  42
  43     : QFrame( (QWidget *) parent->widgetRep() )
  44     , YSlider( parent, label, minValue, maxValue )
  45 {
  46     setWidgetRep( this );
  47
  48     QVBoxLayout* layout = new QVBoxLayout( this );
  49     setLayout( layout );
  50
  51     layout->setSpacing( YQWidgetSpacing );
  52     layout->setMargin ( YQWidgetMargin );
  53
  54     _caption = new YQWidgetCaption( this, label );
  55     YUI_CHECK_NEW( _caption );
  56     layout->addWidget( _caption );
  57
  58     _hbox = new QFrame( this );
  59     YUI_CHECK_NEW( _hbox );
  60     layout->addWidget( _hbox );
  61
  62     layout = new QVBoxLayout( _hbox );
  63     _hbox->setLayout( layout );
  64
  65     layout->setMargin ( YQWidgetMargin );
  66     layout->setSpacing( YQWidgetSpacing );
  67
  68     if ( reverseLayout )
  69     {
  70         _qt_spinBox = new QSpinBox( minValue, maxValue,
  71                                     1, // step
  72                                     _hbox );
  73         layout->addWidget( _qt_spinBox );
  74     }
  75     else
  76     {
  77         _caption->setAlignment( Qt::AlignRight );
  78     }
  79
  80     _qt_slider = new QSlider( minValue, maxValue,
  81                               1, // pageStep
  82                               initialValue,
  83                               Qt::Horizontal, _hbox );
  84     YUI_CHECK_NEW( _qt_slider );
  85     layout->addWidget( _qt_slider );
  86
  87     if ( ! reverseLayout )
  88     {
  89         _qt_spinBox = new QSpinBox( minValue, maxValue,
  90                                     1, // step
  91                                     _hbox );
  92         layout->addWidget( _qt_spinBox );
  93     }
  94     YUI_CHECK_NEW( _qt_spinBox );
  95
  96     _qt_spinBox->setValue( initialValue );
  97     _caption->setBuddy( _qt_spinBox );
  98
  99     setValue( initialValue );
 100
 101     connect( _qt_spinBox, SIGNAL( valueChanged(int) ),
 102              _qt_slider,  SLOT  ( setValue    (int) ) );
 103
 104     connect( _qt_slider,  SIGNAL( valueChanged(int) ),
 105              _qt_spinBox, SLOT  ( setValue    (int) ) );
 106
 107     connect( _qt_spinBox, SIGNAL( valueChanged    (int) ),
 108              this,        SLOT  ( valueChangedSlot(int) ) );
 109 }
 110
 111
 112 YQSlider::~YQSlider()
 113 {
 114     // NOP
 115 }
 116
 117
 118 int
 119 YQSlider::value()
 120 {
 121     return _qt_spinBox->value();
 122 }
 123
 124
 125 void
 126 YQSlider::setValueInternal( int newValue )
 127 {
 128     YQSignalBlocker sigBlocker1( _qt_spinBox );
 129     YQSignalBlocker sigBlocker2( _qt_slider  );
 130     _qt_slider->setValue ( newValue );
 131     _qt_spinBox->setValue( newValue );
 132 }
 133
 134
 135 void
 136 YQSlider::valueChangedSlot( int newValue )
 137 {
 138     if ( notify() )
 139         YQUI::ui()->sendEvent( new YWidgetEvent( this, YEvent::ValueChanged ) );
 140
 141     emit valueChanged( newValue );
 142 }
 143
 144
 145 void
 146 YQSlider::setEnabled( bool enabled )
 147 {
 148     _caption->setEnabled  ( enabled );
 149     _qt_slider->setEnabled ( enabled );
 150     _qt_spinBox->setEnabled( enabled );
 151     YWidget::setEnabled( enabled );
 152 }
 153
 154
 155 int
 156 YQSlider::preferredWidth()
 157 {
 158     int hintWidth = _caption->isShown() ? _caption->sizeHint().width() : 0;
 159
 160     // Arbitrary value - there is no really good default
 161     return max( 200, hintWidth );
 162 }
 163
 164
 165 int
 166 YQSlider::preferredHeight()
 167 {
 168     return sizeHint().height();
 169 }
 170
 171
 172 void
 173 YQSlider::setSize( int newWidth, int newHeight )
 174 {
 175     resize( newWidth, newHeight );
 176 }
 177
 178
 179 void
 180 YQSlider::setLabel( const string & newLabel )
 181 {
 182     _caption->setText( newLabel );
 183     YSlider::setLabel( newLabel );
 184 }
 185
 186
 187 bool
 188 YQSlider::setKeyboardFocus()
 189 {
 190     _qt_spinBox->setFocus();
 191
 192     return true;
 193 }
 194
 195
 196 #include "YQSlider.moc"