src/YQPartitionSplitter.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQPartitionSplitter.cc
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17 /-*/
  18
  19
  20 #define y2log_component "qt-ui"
  21 #include <ycp/y2log.h>
  22
  23 #include "utf8.h"
  24 #include "YQUI.h"
  25 #include "YEvent.h"
  26 #include "YQWidgetFactory.h"
  27 #include "YQOptionalWidgetFactory.h"
  28 #include "YQPartitionSplitter.h"
  29 #include "YQLayoutBox.h"
  30 #include "YQBarGraph.h"
  31 #include "YQIntField.h"
  32 #include "YQSlider.h"
  33 #include "YQSignalBlocker.h"
  34
  35
  36 YQPartitionSplitter::YQPartitionSplitter( YWidget *             parent,
  37                                           int                   usedSize,
  38                                           int                   totalFreeSize,
  39                                           int                   newPartSize,
  40                                           int                   minNewSize,
  41                                           int                   minFreeSize,
  42                                           const string &        usedLabel,
  43                                           const string &        freeLabel,
  44                                           const string &        newPartLabel,
  45                                           const string &        freeFieldLabel,
  46                                           const string &        newPartFieldLabel )
  47     : QWidget( (QWidget *) parent->widgetRep() )
  48     , YPartitionSplitter( parent,
  49                           usedSize,
  50                           totalFreeSize,
  51                           newPartSize,
  52                           minNewSize,
  53                           minFreeSize,
  54                           usedLabel,
  55                           freeLabel,
  56                           newPartLabel,
  57                           freeFieldLabel,
  58                           newPartFieldLabel )
  59       , _vbox( 0 )
  60       , _barGraph( 0 )
  61       , _hbox( 0 )
  62       , _freeSizeSlider( 0 )
  63       , _newPartField( 0 )
  64 {
  65     setWidgetRep( this );
  66
  67     // Replace children manager so it will accept one single direct child (the outer vbox)
  68     setChildrenManager( new YSingleWidgetChildManager( this ) );
  69
  70     //
  71     // Create internal widgets
  72     //
  73
  74     _vbox       = YUI::widgetFactory()->createVBox( this );
  75     _barGraph   = dynamic_cast<YQBarGraph *> ( YUI::optionalWidgetFactory()->createBarGraph( _vbox ) );
  76     YUI_CHECK_PTR( _barGraph );
  77
  78     int freeSize = totalFreeSize - newPartSize;
  79
  80     {
  81         YBarGraphMultiUpdate multiUpdate( _barGraph );
  82
  83         _barGraph->addSegment( YBarGraphSegment( usedSize,    usedLabel ) );
  84         _barGraph->addSegment( YBarGraphSegment( freeSize,    freeLabel ) );
  85         _barGraph->addSegment( YBarGraphSegment( newPartSize, newPartLabel) );
  86     }
  87
  88     _hbox          = YUI::widgetFactory()->createHBox( _vbox );
  89
  90     _freeSizeSlider = new YQSlider( _hbox, freeFieldLabel,
  91                                     minFreeSize, maxFreeSize(), freeSize,
  92                                     true ); // reverseLayout (put QSpinBox left of QSlider)
  93     YUI_CHECK_PTR( _freeSizeSlider );
  94     _freeSizeSlider->setStretchable( YD_HORIZ, true );
  95
  96     _newPartField = new YQIntField( _hbox, newPartFieldLabel,
  97                                     minNewSize, maxNewPartSize(), newPartSize );
  98     YUI_CHECK_PTR( _newPartField );
  99     _newPartField->setStretchable( YD_HORIZ, false );
 100
 101
 102     // Connect signals
 103
 104     connect( _newPartField,     SIGNAL( valueChanged      (int) ),
 105              this,              SLOT  ( setNewPartSizeSlot(int) ) );
 106
 107     connect( _freeSizeSlider,   SIGNAL( valueChanged   (int) ),
 108              this,              SLOT  ( setFreeSizeSlot(int) ) );
 109 }
 110
 111
 112 YQPartitionSplitter::~YQPartitionSplitter()
 113 {
 114     // NOP
 115 }
 116
 117
 118 void YQPartitionSplitter::setEnabled( bool enabled )
 119 {
 120     _freeSizeSlider->setEnabled( enabled );
 121     _newPartField->setEnabled  ( enabled );
 122
 123     YWidget::setEnabled( enabled );
 124 }
 125
 126
 127 int YQPartitionSplitter::preferredWidth()
 128 {
 129     return _vbox->preferredWidth();
 130 }
 131
 132
 133 int YQPartitionSplitter::preferredHeight()
 134 {
 135     return _vbox->preferredHeight();
 136 }
 137
 138
 139 void YQPartitionSplitter::setSize( int newWidth, int newHeight )
 140 {
 141     QWidget::resize( newWidth, newHeight );
 142     _vbox->setSize ( newWidth, newHeight );
 143 }
 144
 145
 146 int YQPartitionSplitter::value()
 147 {
 148     YUI_CHECK_PTR( _newPartField );
 149
 150     return _newPartField->value();
 151 }
 152
 153
 154 void YQPartitionSplitter::setValue( int newValue )
 155 {
 156     YUI_CHECK_PTR( _barGraph       );
 157     YUI_CHECK_PTR( _freeSizeSlider );
 158     YUI_CHECK_PTR( _newPartField   );
 159
 160     YQSignalBlocker sigBlocker1( _barGraph       );
 161     YQSignalBlocker sigBlocker2( _freeSizeSlider );
 162     YQSignalBlocker sigBlocker3( _newPartField   );
 163
 164     _newPartField->setValue( newValue );
 165
 166     int freeSize = totalFreeSize() - newValue;
 167     _freeSizeSlider->setValue( freeSize );
 168
 169     YBarGraphMultiUpdate multiUpdate( _barGraph );
 170     {
 171         _barGraph->setValue( freeSegment,    freeSize );
 172         _barGraph->setValue( newPartSegment, newValue );
 173     }
 174 }
 175
 176
 177 void YQPartitionSplitter::setFreeSizeSlot( int newFreeSize )
 178 {
 179     int newPartSize = totalFreeSize() - newFreeSize;
 180
 181     setValue( newPartSize );
 182
 183     if ( notify() )
 184         YQUI::ui()->sendEvent( new YWidgetEvent( this, YEvent::ValueChanged ) );
 185 }
 186
 187
 188 void YQPartitionSplitter::setNewPartSizeSlot( int newPartSize )
 189 {
 190     setValue( newPartSize );
 191
 192     if ( notify() )
 193         YQUI::ui()->sendEvent( new YWidgetEvent( this, YEvent::ValueChanged ) );
 194 }
 195
 196
 197 bool YQPartitionSplitter::setKeyboardFocus()
 198 {
 199     _newPartField->setKeyboardFocus();
 200
 201     return true;
 202 }
 203
 204
 205 #include "YQPartitionSplitter.moc"