src/pkg/YQPatternSelector.cc

   1 /*---------------------------------------------------------------------\
   2 |                                                                      |
   3 |                      __   __    ____ _____ ____                      |
   4 |                      \ \ / /_ _/ ___|_   _|___ \                     |
   5 |                       \ V / _` \___ \ | |   __) |                    |
   6 |                        | | (_| |___) || |  / __/                     |
   7 |                        |_|\__,_|____/ |_| |_____|                    |
   8 |                                                                      |
   9 |                               core system                            |
  10 |                                                        (C) SuSE GmbH |
  11 \----------------------------------------------------------------------/
  12
  13   File:       YQPatternSelector.cc
  14   See also:   YQPatternSelectorHelp.cc
  15
  16   Author:     Stefan Hundhammer <sh@suse.de>
  17
  18   Textdomain "packages-qt"
  19
  20 /-*/
  21
  22 #include <QApplication>
  23 #include <QHeaderView>
  24 #include <QPushButton>
  25 #include <QSplitter>
  26
  27 #define y2log_component "qt-pkg"
  28 #include <ycp/y2log.h>
  29
  30 #include "QY2LayoutUtils.h"
  31
  32 #include "YQPatternSelector.h"
  33 #include "YQPkgConflictDialog.h"
  34 #include "YQPkgSelDescriptionView.h"
  35 #include "YQPkgDiskUsageList.h"
  36 #include "YQPkgPatternList.h"
  37 #include "YQPkgSelList.h"
  38 #include "YQWizard.h"
  39 #include "YQDialog.h"
  40
  41 #include "utf8.h"
  42 #include "YQUI.h"
  43 #include "YEvent.h"
  44 #include "YQi18n.h"
  45
  46 #define ALWAYS_SOLVE_IMMEDIATELY 1
  47
  48 using std::max;
  49 using std::string;
  50
  51 #define SPACING                 6
  52 #define MARGIN                  6
  53
  54
  55 YQPatternSelector::YQPatternSelector( YWidget * parent, long modeFlags )
  56     : YQPackageSelectorBase( parent, modeFlags )
  57 {
  58     _patternList                = 0;
  59     _selList                    = 0;
  60     _descriptionView            = 0;
  61     _wizard                     = findWizard();
  62
  63     basicLayout();
  64     makeConnections();
  65
  66     if ( _patternList )
  67     {
  68         _patternList->fillList();
  69         _patternList->selectSomething();
  70     }
  71     else if ( _selList )
  72     {
  73         _selList->fillList();
  74         _selList->selectSomething();
  75     }
  76
  77     if ( zyppPool().empty<zypp::Pattern  >() &&
  78          zyppPool().empty<zypp::Selection>()   )
  79     {
  80         y2warning( "Neither patterns nor selections in ZyppPool" );
  81     }
  82
  83
  84     if ( _diskUsageList )
  85         _diskUsageList->updateDiskUsage();
  86 }
  87
  88
  89
  90 YQWizard *
  91 YQPatternSelector::findWizard() const
  92 {
  93     YQWizard * wizard = 0;
  94
  95     YQDialog * dialog = dynamic_cast<YQDialog *> ( YDialog::currentDialog() );
  96
  97     if ( dialog )
  98         wizard = dialog->findWizard();
  99
 100     return wizard;
 101 }
 102
 103
 104
 105 void
 106 YQPatternSelector::basicLayout()
 107 {
 108     QVBoxLayout *vbox = new QVBoxLayout();
 109     setLayout(vbox);
 110
 111     QSplitter * outer_splitter = new QSplitter( Qt::Horizontal, this );
 112     Q_CHECK_PTR( outer_splitter );
 113
 114     vbox->addWidget( outer_splitter );
 115
 116     QWidget * left_pane  = layoutLeftPane ( outer_splitter );
 117     QWidget * right_pane = layoutRightPane( outer_splitter );
 118
 119     int left_pane_width = (int) ( 0.3 * YQUI::ui()->defaultSize( YD_HORIZ ) );
 120     left_pane->resize( QSize( left_pane_width, left_pane->height() ) );
 121
 122     outer_splitter->setStretchFactor(outer_splitter->indexOf(left_pane), 0);
 123     outer_splitter->setStretchFactor(outer_splitter->indexOf(right_pane), 1);
 124
 125     if ( ! _wizard )
 126         layoutButtons( this );
 127 }
 128
 129
 130
 131 QWidget *
 132 YQPatternSelector::layoutLeftPane( QWidget * parent )
 133 {
 134     QWidget *vbox = new QWidget(parent);
 135     QVBoxLayout * layout = new QVBoxLayout( vbox );
 136     Q_CHECK_PTR( vbox );
 137     layout->setMargin( MARGIN );
 138     vbox->setLayout(layout);
 139
 140     if ( ! zyppPool().empty<zypp::Pattern>() )
 141     {
 142         //
 143         // Patterns list
 144         //
 145
 146         _patternList = new YQPkgPatternList( vbox,
 147                                              false,     // no autoFill - need to connect to details view first
 148                                              false );   // no autoFilter - filterMatch() is not connected
 149         Q_CHECK_PTR( _patternList );
 150   layout->addWidget(_patternList);
 151          _patternList->header()->hide();
 152     }
 153
 154     if ( ! _patternList )
 155     {
 156         //
 157         // Fallback: selections list
 158         //
 159
 160         /**
 161          * Create a selections list even if there are no selections, otherwise
 162          * the layout will look very weird. An empty selections list still
 163          * looks better than a lot of grey empty space.
 164          **/
 165
 166         y2warning( "No patterns in ZyppPool - using selections instead" );
 167         _selList = new YQPkgSelList( vbox,
 168                                      false,     // no autoFill - need to connect to details view first
 169                                      false );   // no autoFilter - filterMatch() is not connected
 170         Q_CHECK_PTR( _selList );
 171   layout->addWidget(_selList);
 172         _selList->header()->hide();
 173     }
 174
 175     if ( _wizard )      // No button box - add "Details..." button here
 176     {
 177         //
 178         // "Details" button
 179         //
 180
 181         layout->addSpacing( SPACING );
 182
 183         QHBoxLayout * hbox = new QHBoxLayout();
 184         Q_CHECK_PTR( hbox );
 185   layout->addLayout(hbox);
 186
 187         QPushButton * details_button = new QPushButton( _( "&Details..." ), vbox );
 188         Q_CHECK_PTR( details_button );
 189   hbox->addWidget(details_button);
 190
 191         connect( details_button, SIGNAL( clicked() ),
 192                  this,           SLOT  ( detailedPackageSelection() ) );
 193
 194         hbox->addStretch();
 195     }
 196
 197     return vbox;
 198 }
 199
 200
 201
 202 QWidget *
 203 YQPatternSelector::layoutRightPane( QWidget * parent )
 204 {
 205     QSplitter * splitter = new QSplitter( Qt::Vertical, parent );
 206     Q_CHECK_PTR( splitter );
 207     //splitter->setMargin( MARGIN );
 208
 209
 210     //
 211     // Selection / Pattern description
 212     //
 213     QWidget *upper_vbox = new QWidget(splitter);
 214     QVBoxLayout * layout = new QVBoxLayout(upper_vbox);
 215
 216     Q_CHECK_PTR( upper_vbox );
 217
 218     _descriptionView = new YQPkgSelDescriptionView( upper_vbox );
 219     Q_CHECK_PTR( _descriptionView );
 220     layout->addWidget(_descriptionView);
 221
 222     layout->addSpacing( MARGIN );
 223
 224
 225     //
 226     // Disk usage
 227     //
 228
 229     QWidget *lower_vbox = new QWidget(splitter);
 230     layout = new QVBoxLayout(upper_vbox);
 231
 232     Q_CHECK_PTR( lower_vbox );
 233     layout->addSpacing( MARGIN );
 234
 235     _diskUsageList = new YQPkgDiskUsageList( lower_vbox );
 236     Q_CHECK_PTR( _diskUsageList );
 237     layout->addWidget(_diskUsageList);
 238
 239     splitter->setStretchFactor( 0, 0 );
 240     splitter->setStretchFactor( 0, 1 );
 241
 242     return splitter;
 243 }
 244
 245
 246
 247 void
 248 YQPatternSelector::layoutButtons( QWidget * parent )
 249 {
 250     QWidget *button_box = new QWidget(parent);
 251     QHBoxLayout *layout = new QHBoxLayout(button_box);
 252
 253     Q_CHECK_PTR( button_box );
 254     layout->setMargin ( MARGIN  );
 255     layout->setSpacing( SPACING );
 256
 257    button_box->setLayout(layout);
 258
 259     QPushButton * details_button = new QPushButton( _( "&Details..." ), button_box );
 260     layout->addWidget(details_button);
 261     Q_CHECK_PTR( details_button );
 262     details_button->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) ); // hor/vert
 263
 264     connect( details_button,    SIGNAL( clicked() ),
 265              this,              SLOT  ( detailedPackageSelection() ) );
 266
 267
 268     layout->addStretch();
 269
 270     QPushButton * cancel_button = new QPushButton( _( "&Cancel" ), button_box );
 271     Q_CHECK_PTR( cancel_button );
 272     layout->addWidget(cancel_button);
 273     cancel_button->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) ); // hor/vert
 274
 275     connect( cancel_button, SIGNAL( clicked() ),
 276              this,          SLOT  ( reject()   ) );
 277
 278
 279     QPushButton * accept_button = new QPushButton( _( "&Accept" ), button_box );
 280     Q_CHECK_PTR( accept_button );
 281     layout->addWidget(accept_button);
 282     accept_button->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) ); // hor/vert
 283
 284     connect( accept_button, SIGNAL( clicked() ),
 285              this,          SLOT  ( accept()   ) );
 286
 287     button_box->setFixedHeight( button_box->sizeHint().height() );
 288 }
 289
 290
 291
 292 void
 293 YQPatternSelector::makeConnections()
 294 {
 295     if ( _patternList )
 296     {
 297 #if ALWAYS_SOLVE_IMMEDIATELY
 298         connect( _patternList,          SIGNAL( statusChanged()         ),
 299                  this,                  SLOT  ( resolveDependencies()   ) );
 300
 301         if ( _pkgConflictDialog )
 302         {
 303             connect( _pkgConflictDialog, SIGNAL( updatePackages()       ),
 304                      _patternList,       SLOT  ( updateItemStates()     ) );
 305         }
 306 #endif
 307
 308         if ( _descriptionView )
 309         {
 310             connect( _patternList,      SIGNAL( currentItemChanged( ZyppSel ) ),
 311                      _descriptionView,  SLOT  ( showDetails     ( ZyppSel ) ) );
 312         }
 313
 314         if ( _diskUsageList )
 315         {
 316             connect( _patternList,      SIGNAL( updatePackages()  ),
 317                      _diskUsageList,    SLOT  ( updateDiskUsage() ) );
 318         }
 319
 320     }
 321
 322     if ( _selList )
 323     {
 324 #if ALWAYS_SOLVE_IMMEDIATELY
 325         connect( _selList,              SIGNAL( statusChanged()         ),
 326                  this,                  SLOT  ( resolveDependencies()   ) );
 327
 328         if ( _pkgConflictDialog )
 329         {
 330             connect( _pkgConflictDialog, SIGNAL( updatePackages()       ),
 331                      _selList,           SLOT  ( updateItemStates()     ) );
 332         }
 333
 334 #endif
 335
 336         if ( _descriptionView )
 337         {
 338             connect( _selList,          SIGNAL( currentItemChanged( ZyppSel ) ),
 339                      _descriptionView,  SLOT  ( showDetails     ( ZyppSel ) ) );
 340         }
 341
 342         if ( _diskUsageList )
 343         {
 344             connect( _selList,          SIGNAL( updatePackages()  ),
 345                      _diskUsageList,    SLOT  ( updateDiskUsage() ) );
 346         }
 347     }
 348
 349     y2milestone( "Connection set up" );
 350
 351
 352     if ( _wizard )
 353     {
 354         connect( _wizard,       SIGNAL( nextClicked()   ),
 355                  this,          SLOT  ( accept()        ) );
 356
 357         connect( _wizard,       SIGNAL( backClicked()   ),
 358                  this,          SLOT  ( reject()        ) );
 359
 360         connect( _wizard,       SIGNAL( abortClicked()  ),
 361                  this,          SLOT  ( reject()        ) );
 362     }
 363 }
 364
 365
 366 void
 367 YQPatternSelector::detailedPackageSelection()
 368 {
 369     y2milestone( "\"Details..\" button clicked" );
 370     YQUI::ui()->sendEvent( new YMenuEvent( YCPSymbol( "details" ) ) );
 371 }
 372
 373
 374 void
 375 YQPatternSelector::debugTrace()
 376 {
 377     y2warning( "debugTrace" );
 378 }
 379
 380
 381
 382 #include "YQPatternSelector.moc"