src/pkg/YQPkgRpmGroupTagsFilterView.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQPkgRpmGroupTagsFilterView.cc
  14
  15   Author:     Stefan Hundhammer <sh@suse.de>
  16
  17   Textdomain "packages-qt"
  18
  19 /-*/
  20
  21
  22 #define y2log_component "qt-pkg"
  23 #include <ycp/y2log.h>
  24
  25 #include "YQPkgRpmGroupTagsFilterView.h"
  26 #include "YQi18n.h"
  27 #include "utf8.h"
  28
  29
  30
  31 YRpmGroupsTree * YQPkgRpmGroupTagsFilterView::_rpmGroupsTree = 0;
  32
  33
  34 YQPkgRpmGroupTagsFilterView::YQPkgRpmGroupTagsFilterView( QWidget * parent )
  35     : QListView( parent )
  36 {
  37     addColumn( _( "Package Groups" ) );
  38     setRootIsDecorated( true );
  39     cloneTree( rpmGroupsTree()->root(), 0 );
  40
  41     new YQPkgRpmGroupTag( this, _( "zzz All" ), 0 );
  42
  43     connect( this, SIGNAL( selectionChanged     ( QListViewItem * ) ),
  44              this, SLOT  ( slotSelectionChanged ( QListViewItem * ) ) );
  45
  46     selectSomething();
  47 }
  48
  49
  50 YQPkgRpmGroupTagsFilterView::~YQPkgRpmGroupTagsFilterView()
  51 {
  52 }
  53
  54
  55 YRpmGroupsTree *
  56 YQPkgRpmGroupTagsFilterView::rpmGroupsTree()
  57 {
  58     if ( ! _rpmGroupsTree )
  59     {
  60         _rpmGroupsTree = new YRpmGroupsTree();
  61         CHECK_PTR( _rpmGroupsTree );
  62
  63         fillRpmGroupsTree();
  64     }
  65
  66     return _rpmGroupsTree;
  67 }
  68
  69
  70 void
  71 YQPkgRpmGroupTagsFilterView::fillRpmGroupsTree()
  72 {
  73     y2debug( "Filling RPM groups tree" );
  74
  75     for ( ZyppPoolIterator it = zyppPkgBegin();
  76           it != zyppPkgEnd();
  77           ++it )
  78     {
  79         ZyppPkg zyppPkg = tryCastToZyppPkg( (*it)->theObj() );
  80
  81         if ( zyppPkg )
  82             rpmGroupsTree()->addRpmGroup( zyppPkg->group() );
  83     }
  84
  85     y2debug( "Filling RPM groups tree done" );
  86 }
  87
  88
  89 void
  90 YQPkgRpmGroupTagsFilterView::cloneTree( YStringTreeItem *       parentRpmGroup,
  91                                         YQPkgRpmGroupTag *      parentClone )
  92 {
  93     YStringTreeItem *   child = parentRpmGroup->firstChild();
  94     YQPkgRpmGroupTag *  clone;
  95
  96     while ( child )
  97     {
  98         if ( parentClone )
  99             clone = new YQPkgRpmGroupTag( this, parentClone, child );
 100         else
 101             clone = new YQPkgRpmGroupTag( this, child );
 102
 103         CHECK_PTR( clone );
 104         clone->setOpen( clone->depth() < 1 );
 105
 106         cloneTree( child, clone );
 107         child = child->next();
 108     }
 109 }
 110
 111
 112 void
 113 YQPkgRpmGroupTagsFilterView::selectSomething()
 114 {
 115     QListViewItem * item = firstChild();
 116
 117     if ( item )
 118         setSelected( item, true );
 119 }
 120
 121
 122 void
 123 YQPkgRpmGroupTagsFilterView::filterIfVisible()
 124 {
 125     if ( isVisible() )
 126         filter();
 127 }
 128
 129
 130 void
 131 YQPkgRpmGroupTagsFilterView::filter()
 132 {
 133     emit filterStart();
 134     // y2debug( "Filtering packages for RPM group \"%s\"", selectedRpmGroup().c_str() );
 135
 136     if ( selection() )
 137     {
 138         for ( ZyppPoolIterator it = zyppPkgBegin();
 139               it != zyppPkgEnd();
 140               ++it )
 141         {
 142             ZyppSel selectable = *it;
 143
 144             // Multiple instances of this package may or may not be in the same
 145             // RPM group, so let's check both the installed version (if there
 146             // is any) and the candidate version.
 147             //
 148             // Make sure we emit only one filterMatch() signal if both exist
 149             // and both are in the same RPM group. We don't want multiple list
 150             // entries for the same package!
 151
 152             bool match =
 153                 check( selectable, tryCastToZyppPkg( selectable->candidateObj() ) ) ||
 154                 check( selectable, tryCastToZyppPkg( selectable->installedObj() ) );
 155
 156             // If there is neither an installed nor a candidate package, check
 157             // any other instance.
 158
 159             if ( ! match                        &&
 160                  ! selectable->candidateObj()   &&
 161                  ! selectable->installedObj()     )
 162                 check( selectable, tryCastToZyppPkg( selectable->theObj() ) );
 163         }
 164     }
 165
 166     emit filterFinished();
 167 }
 168
 169
 170 void
 171 YQPkgRpmGroupTagsFilterView::slotSelectionChanged( QListViewItem * newSelection )
 172 {
 173     YQPkgRpmGroupTag * sel = dynamic_cast<YQPkgRpmGroupTag *>( newSelection );
 174
 175     if ( sel )
 176     {
 177         if ( sel->rpmGroup() )
 178             _selectedRpmGroup = rpmGroupsTree()->rpmGroup( sel->rpmGroup() );
 179         else
 180             _selectedRpmGroup = "*";    // "zzz_All"
 181     }
 182     else
 183     {
 184         _selectedRpmGroup = "";
 185     }
 186
 187     filter();
 188 }
 189
 190
 191 bool
 192 YQPkgRpmGroupTagsFilterView::check( ZyppSel     selectable,
 193                                     ZyppPkg     pkg             )
 194 {
 195     if ( ! pkg || ! selection() )
 196         return false;
 197
 198     if ( selection()->rpmGroup() == 0 )         // Special case: All packages
 199     {
 200         emit filterMatch( selectable, pkg );
 201         return true;
 202     }
 203
 204     if ( selectedRpmGroup().empty() )
 205         return false;
 206
 207     if ( pkg->group() == selectedRpmGroup() ||                  // full match?
 208          pkg->group().find( selectedRpmGroup() + "/" ) == 0 )   // starts with selected?
 209     {
 210         emit filterMatch( selectable, pkg );
 211         return true;
 212     }
 213
 214     return false;
 215 }
 216
 217
 218 YQPkgRpmGroupTag *
 219 YQPkgRpmGroupTagsFilterView::selection() const
 220 {
 221     QListViewItem * item = selectedItem();
 222
 223     if ( ! item )
 224         return 0;
 225
 226     return dynamic_cast<YQPkgRpmGroupTag *> ( selectedItem() );
 227 }
 228
 229
 230
 231
 232
 233
 234 YQPkgRpmGroupTag::YQPkgRpmGroupTag( YQPkgRpmGroupTagsFilterView *       parentFilterView,
 235                                     YStringTreeItem *                   rpmGroup        )
 236     : QListViewItem( parentFilterView )
 237     , _filterView( parentFilterView )
 238     , _rpmGroup( rpmGroup )
 239 {
 240     setText( 0,  fromUTF8( _rpmGroup->value().translation() ) );
 241 }
 242
 243
 244 YQPkgRpmGroupTag::YQPkgRpmGroupTag( YQPkgRpmGroupTagsFilterView *       parentFilterView,
 245                                     YQPkgRpmGroupTag *                  parentGroupTag,
 246                                     YStringTreeItem *                   rpmGroup        )
 247     : QListViewItem( parentGroupTag )
 248     , _filterView( parentFilterView )
 249     , _rpmGroup( rpmGroup )
 250 {
 251     setText( 0,  fromUTF8( _rpmGroup->value().translation() )  );
 252 }
 253
 254
 255 YQPkgRpmGroupTag::YQPkgRpmGroupTag( YQPkgRpmGroupTagsFilterView *       parentFilterView,
 256                                     const QString &                     rpmGroupName,
 257                                     YStringTreeItem *                   rpmGroup        )
 258     : QListViewItem( parentFilterView )
 259     , _filterView( parentFilterView )
 260     , _rpmGroup( rpmGroup )
 261 {
 262     setText( 0,  rpmGroupName );
 263 }
 264
 265
 266 YQPkgRpmGroupTag::~YQPkgRpmGroupTag()
 267 {
 268     // NOP
 269 }
 270
 271
 272
 273 #include "YQPkgRpmGroupTagsFilterView.moc"