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 <qvbox.h>
  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     : QVBox( (QWidget *) parent->widgetRep() )
  44     , YSlider( parent, label, minValue, maxValue )
  45 {
  46     setWidgetRep( this );
  47
  48     setSpacing( YQWidgetSpacing );
  49     setMargin ( YQWidgetMargin );
  50
  51     _caption = new YQWidgetCaption( this, toUTF8( label ) );
  52     YUI_CHECK_NEW( _caption );
  53
  54     _hbox = new QHBox( this );
  55     YUI_CHECK_NEW( _hbox );
  56
  57     _hbox->setSpacing( YQWidgetSpacing );
  58
  59     if ( reverseLayout )
  60     {
  61         _qt_spinBox = new QSpinBox( minValue, maxValue,
  62                                     1, // step
  63                                     _hbox );
  64     }
  65     else
  66     {
  67         _caption->setAlignment( Qt::AlignRight );
  68     }
  69
  70     _qt_slider = new QSlider( minValue, maxValue,
  71                               1, // pageStep
  72                               initialValue,
  73                               QSlider::Horizontal, _hbox );
  74     YUI_CHECK_NEW( _qt_slider );
  75
  76     if ( ! reverseLayout )
  77     {
  78         _qt_spinBox = new QSpinBox( minValue, maxValue,
  79                                     1, // step
  80                                     _hbox );
  81     }
  82     YUI_CHECK_NEW( _qt_spinBox );
  83
  84     _qt_spinBox->setValue( initialValue );
  85     _caption->setBuddy( _qt_spinBox );
  86
  87     setValue( initialValue );
  88
  89     connect( _qt_spinBox, SIGNAL( valueChanged(int) ),
  90              _qt_slider,  SLOT  ( setValue    (int) ) );
  91
  92     connect( _qt_slider,  SIGNAL( valueChanged(int) ),
  93              _qt_spinBox, SLOT  ( setValue    (int) ) );
  94
  95     connect( _qt_spinBox, SIGNAL( valueChanged    (int) ),
  96              this,        SLOT  ( valueChangedSlot(int) ) );
  97 }
  98
  99
 100 YQSlider::~YQSlider()
 101 {
 102     // NOP
 103 }
 104
 105
 106 int
 107 YQSlider::value()
 108 {
 109     return _qt_spinBox->value();
 110 }
 111
 112
 113 void
 114 YQSlider::setValueInternal( int newValue )
 115 {
 116     YQSignalBlocker sigBlocker1( _qt_spinBox );
 117     YQSignalBlocker sigBlocker2( _qt_slider  );
 118     _qt_slider->setValue ( newValue );
 119     _qt_spinBox->setValue( newValue );
 120 }
 121
 122
 123 void
 124 YQSlider::valueChangedSlot( int newValue )
 125 {
 126     if ( notify() )
 127         YQUI::ui()->sendEvent( new YWidgetEvent( this, YEvent::ValueChanged ) );
 128
 129     emit valueChanged( newValue );
 130 }
 131
 132
 133 void
 134 YQSlider::setEnabled( bool enabled )
 135 {
 136     _caption->setEnabled  ( enabled );
 137     _qt_slider->setEnabled ( enabled );
 138     _qt_spinBox->setEnabled( enabled );
 139     YWidget::setEnabled( enabled );
 140 }
 141
 142
 143 int
 144 YQSlider::preferredWidth()
 145 {
 146     int hintWidth = _caption->isShown() ? _caption->sizeHint().width() : 0;
 147
 148     // Arbitrary value - there is no really good default
 149     return max( 200, hintWidth );
 150 }
 151
 152
 153 int
 154 YQSlider::preferredHeight()
 155 {
 156     return sizeHint().height();
 157 }
 158
 159
 160 void
 161 YQSlider::setSize( int newWidth, int newHeight )
 162 {
 163     resize( newWidth, newHeight );
 164 }
 165
 166
 167 void
 168 YQSlider::setLabel( const string & newLabel )
 169 {
 170     _caption->setText( newLabel );
 171     YSlider::setLabel( newLabel );
 172 }
 173
 174
 175 bool
 176 YQSlider::setKeyboardFocus()
 177 {
 178     _qt_spinBox->setFocus();
 179
 180     return true;
 181 }
 182
 183
 184 #include "YQSlider.moc"