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( this );
 109
 110     QSplitter * outer_splitter = new QSplitter( Qt::Horizontal, this );
 111     Q_CHECK_PTR( outer_splitter );
 112
 113     vbox->addWidget( outer_splitter );
 114
 115     QWidget * left_pane  = layoutLeftPane ( outer_splitter );
 116     QWidget * right_pane = layoutRightPane( outer_splitter );
 117
 118     int left_pane_width = (int) ( 0.3 * YQUI::ui()->defaultSize( YD_HORIZ ) );
 119     left_pane->resize( QSize( left_pane_width, left_pane->height() ) );
 120
 121     outer_splitter->setStretchFactor(outer_splitter->indexOf(left_pane), 0);
 122     outer_splitter->setStretchFactor(outer_splitter->indexOf(right_pane), 1);
 123
 124     if ( ! _wizard )
 125         layoutButtons( this );
 126 }
 127
 128
 129
 130 QWidget *
 131 YQPatternSelector::layoutLeftPane( QWidget * parent )
 132 {
 133     QWidget *vbox = new QWidget(parent);
 134     QVBoxLayout * layout = new QVBoxLayout( vbox );
 135     Q_CHECK_PTR( vbox );
 136     layout->setMargin( MARGIN );
 137     vbox->setLayout(layout);
 138
 139     if ( ! zyppPool().empty<zypp::Pattern>() )
 140     {
 141         //
 142         // Patterns list
 143         //
 144
 145         _patternList = new YQPkgPatternList( vbox,
 146                                              false,     // no autoFill - need to connect to details view first
 147                                              false );   // no autoFilter - filterMatch() is not connected
 148         Q_CHECK_PTR( _patternList );
 149   layout->addWidget(_patternList);
 150          _patternList->header()->hide();
 151     }
 152
 153     if ( ! _patternList )
 154     {
 155         //
 156         // Fallback: selections list
 157         //
 158
 159         /**
 160          * Create a selections list even if there are no selections, otherwise
 161          * the layout will look very weird. An empty selections list still
 162          * looks better than a lot of grey empty space.
 163          **/
 164
 165         y2warning( "No patterns in ZyppPool - using selections instead" );
 166         _selList = new YQPkgSelList( vbox,
 167                                      false,     // no autoFill - need to connect to details view first
 168                                      false );   // no autoFilter - filterMatch() is not connected
 169         Q_CHECK_PTR( _selList );
 170   layout->addWidget(_selList);
 171         _selList->header()->hide();
 172     }
 173
 174     if ( _wizard )      // No button box - add "Details..." button here
 175     {
 176         //
 177         // "Details" button
 178         //
 179
 180         layout->addSpacing( SPACING );
 181
 182         QHBoxLayout * hbox = new QHBoxLayout();
 183         Q_CHECK_PTR( hbox );
 184   layout->addLayout(hbox);
 185
 186         QPushButton * details_button = new QPushButton( _( "&Details..." ), vbox );
 187         Q_CHECK_PTR( details_button );
 188   hbox->addWidget(details_button);
 189
 190         connect( details_button, SIGNAL( clicked() ),
 191                  this,           SLOT  ( detailedPackageSelection() ) );
 192
 193         hbox->addStretch();
 194     }
 195
 196     return vbox;
 197 }
 198
 199
 200
 201 QWidget *
 202 YQPatternSelector::layoutRightPane( QWidget * parent )
 203 {
 204     QSplitter * splitter = new QSplitter( Qt::Vertical, parent );
 205     Q_CHECK_PTR( splitter );
 206     //splitter->setMargin( MARGIN );
 207
 208
 209     //
 210     // Selection / Pattern description
 211     //
 212     QWidget *upper_vbox = new QWidget(splitter);
 213     QVBoxLayout * layout = new QVBoxLayout(upper_vbox);
 214
 215     Q_CHECK_PTR( upper_vbox );
 216
 217     _descriptionView = new YQPkgSelDescriptionView( upper_vbox );
 218     Q_CHECK_PTR( _descriptionView );
 219     layout->addWidget(_descriptionView);
 220
 221     layout->addSpacing( MARGIN );
 222
 223
 224     //
 225     // Disk usage
 226     //
 227
 228     QWidget *lower_vbox = new QWidget(splitter);
 229     layout = new QVBoxLayout(upper_vbox);
 230
 231     Q_CHECK_PTR( lower_vbox );
 232     layout->addSpacing( MARGIN );
 233
 234     _diskUsageList = new YQPkgDiskUsageList( lower_vbox );
 235     Q_CHECK_PTR( _diskUsageList );
 236     layout->addWidget(_diskUsageList);
 237
 238     splitter->setStretchFactor( 0, 0 );
 239     splitter->setStretchFactor( 0, 1 );
 240
 241     return splitter;
 242 }
 243
 244
 245
 246 void
 247 YQPatternSelector::layoutButtons( QWidget * parent )
 248 {
 249     QWidget *button_box = new QWidget(parent);
 250     QHBoxLayout *layout = new QHBoxLayout(button_box);
 251
 252     Q_CHECK_PTR( button_box );
 253     layout->setMargin ( MARGIN  );
 254     layout->setSpacing( SPACING );
 255
 256    button_box->setLayout(layout);
 257
 258     QPushButton * details_button = new QPushButton( _( "&Details..." ), button_box );
 259     layout->addWidget(details_button);
 260     Q_CHECK_PTR( details_button );
 261     details_button->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) ); // hor/vert
 262
 263     connect( details_button,    SIGNAL( clicked() ),
 264              this,              SLOT  ( detailedPackageSelection() ) );
 265
 266
 267     layout->addStretch();
 268
 269     QPushButton * cancel_button = new QPushButton( _( "&Cancel" ), button_box );
 270     Q_CHECK_PTR( cancel_button );
 271     layout->addWidget(cancel_button);
 272     cancel_button->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) ); // hor/vert
 273
 274     connect( cancel_button, SIGNAL( clicked() ),
 275              this,          SLOT  ( reject()   ) );
 276
 277
 278     QPushButton * accept_button = new QPushButton( _( "&Accept" ), button_box );
 279     Q_CHECK_PTR( accept_button );
 280     layout->addWidget(accept_button);
 281     accept_button->setSizePolicy( QSizePolicy( QSizePolicy::Fixed, QSizePolicy::Fixed ) ); // hor/vert
 282
 283     connect( accept_button, SIGNAL( clicked() ),
 284              this,          SLOT  ( accept()   ) );
 285
 286     button_box->setFixedHeight( button_box->sizeHint().height() );
 287 }
 288
 289
 290
 291 void
 292 YQPatternSelector::makeConnections()
 293 {
 294     if ( _patternList )
 295     {
 296 #if ALWAYS_SOLVE_IMMEDIATELY
 297         connect( _patternList,          SIGNAL( statusChanged()         ),
 298                  this,                  SLOT  ( resolveDependencies()   ) );
 299
 300         if ( _pkgConflictDialog )
 301         {
 302             connect( _pkgConflictDialog, SIGNAL( updatePackages()       ),
 303                      _patternList,       SLOT  ( updateItemStates()     ) );
 304         }
 305 #endif
 306
 307         if ( _descriptionView )
 308         {
 309             connect( _patternList,      SIGNAL( currentItemChanged( ZyppSel ) ),
 310                      _descriptionView,  SLOT  ( showDetails     ( ZyppSel ) ) );
 311         }
 312
 313         if ( _diskUsageList )
 314         {
 315             connect( _patternList,      SIGNAL( updatePackages()  ),
 316                      _diskUsageList,    SLOT  ( updateDiskUsage() ) );
 317         }
 318
 319     }
 320
 321     if ( _selList )
 322     {
 323 #if ALWAYS_SOLVE_IMMEDIATELY
 324         connect( _selList,              SIGNAL( statusChanged()         ),
 325                  this,                  SLOT  ( resolveDependencies()   ) );
 326
 327         if ( _pkgConflictDialog )
 328         {
 329             connect( _pkgConflictDialog, SIGNAL( updatePackages()       ),
 330                      _selList,           SLOT  ( updateItemStates()     ) );
 331         }
 332
 333 #endif
 334
 335         if ( _descriptionView )
 336         {
 337             connect( _selList,          SIGNAL( currentItemChanged( ZyppSel ) ),
 338                      _descriptionView,  SLOT  ( showDetails     ( ZyppSel ) ) );
 339         }
 340
 341         if ( _diskUsageList )
 342         {
 343             connect( _selList,          SIGNAL( updatePackages()  ),
 344                      _diskUsageList,    SLOT  ( updateDiskUsage() ) );
 345         }
 346     }
 347
 348     y2milestone( "Connection set up" );
 349
 350
 351     if ( _wizard )
 352     {
 353         connect( _wizard,       SIGNAL( nextClicked()   ),
 354                  this,          SLOT  ( accept()        ) );
 355
 356         connect( _wizard,       SIGNAL( backClicked()   ),
 357                  this,          SLOT  ( reject()        ) );
 358
 359         connect( _wizard,       SIGNAL( abortClicked()  ),
 360                  this,          SLOT  ( reject()        ) );
 361     }
 362 }
 363
 364
 365 void
 366 YQPatternSelector::detailedPackageSelection()
 367 {
 368     y2milestone( "\"Details..\" button clicked" );
 369     YQUI::ui()->sendEvent( new YMenuEvent( YCPSymbol( "details" ) ) );
 370 }
 371
 372
 373 void
 374 YQPatternSelector::debugTrace()
 375 {
 376     y2warning( "debugTrace" );
 377 }
 378
 379
 380
 381 #include "YQPatternSelector.moc"