us_select_triples.cpp

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#include "us_select_triples.h"
#include "us_settings.h"
#include "us_gui_settings.h"

US_SelectTriples::US_SelectTriples( QStringList& triples )
   : US_WidgetsDialog( 0, 0 ), triples( triples )
{
   original    = triples;                 // List of original includes
   nbr_select  = 0;
   nbr_orig    = original.size();
   dbg_level   = US_Settings::us_debug();

   setWindowTitle( tr( "Triples Selector for Deletes" ) );
   setPalette( US_GuiSettings::frameColor() );

   QVBoxLayout* main    = new QVBoxLayout( this );
   main->setSpacing        ( 2 );
   main->setContentsMargins( 2, 2, 2, 2 );
   QVBoxLayout* left    = new QVBoxLayout;
   QVBoxLayout* right   = new QVBoxLayout;
   QHBoxLayout* lists   = new QHBoxLayout;

   // Read-only triple list count text
   le_original   = us_lineedit( tr( "%1 original triples" )
                      .arg( nbr_orig ),   -1, true );
   le_selected   = us_lineedit( tr( "%1 excluded triples" )
                      .arg( nbr_select ), -1, true );

   // Lambda list labels
   QLabel* lb_original = us_label( tr( "Included Triples" ) );
   QLabel* lb_selected = us_label( tr( "Excluded Triples" ) );

   // Lambda list widgets
   lw_original   = us_listwidget();
   lw_selected   = us_listwidget();
   lw_original->setSelectionMode( QAbstractItemView::ExtendedSelection );
   lw_selected->setSelectionMode( QAbstractItemView::ExtendedSelection );
   includes      = original;
   excludes.clear();

   for ( int ii = 0; ii < nbr_orig; ii++ )
   {  // Add items to the original (included) list
      lw_original->addItem( original[ ii ] );
   }

   // Add (=>) and Remove (<=) buttons for lists
   pb_add        = us_pushbutton( tr( "Add  ===>"    ) );
   pb_remove     = us_pushbutton( tr( "<===  Remove" ) );

   // Button Row
   QHBoxLayout* buttons = new QHBoxLayout;

   QPushButton* pb_reset  = us_pushbutton( tr( "Reset" ) );
   QPushButton* pb_help   = us_pushbutton( tr( "Help" ) );
   QPushButton* pb_cancel = us_pushbutton( tr( "Cancel" ) );
                pb_accept = us_pushbutton( tr( "Accept" ) );
   pb_accept->setEnabled( false );
   pb_add   ->setEnabled( includes.count() > 0 );
   pb_remove->setEnabled( excludes.count() > 0 );

  // Connections
   connect( pb_add,    SIGNAL( clicked() ), SLOT( add_selections() ) );
   connect( pb_remove, SIGNAL( clicked() ), SLOT( rmv_selections() ) );
   connect( pb_reset,  SIGNAL( clicked() ), SLOT( reset()  ) );
   connect( pb_help,   SIGNAL( clicked() ), SLOT( help()   ) );
   connect( pb_cancel, SIGNAL( clicked() ), SLOT( cancel() ) );
   connect( pb_accept, SIGNAL( clicked() ), SLOT( done()   ) );

   // Complete layouts
   buttons->addWidget( pb_reset  );
   buttons->addWidget( pb_help   );
   buttons->addWidget( pb_cancel );
   buttons->addWidget( pb_accept );

   left ->addWidget( lb_original );
   left ->addWidget( lw_original );
   left ->addWidget( pb_add      );
   right->addWidget( lb_selected );
   right->addWidget( lw_selected );
   right->addWidget( pb_remove   );
   lists->addLayout( left   );
   lists->addLayout( right  );
   main ->addWidget( le_original );
   main ->addWidget( le_selected );
   main ->addLayout( lists   );
   main ->addLayout( buttons );

   resize( 140, 700 );
}

// Slot to add selections to the excluded list
void US_SelectTriples::add_selections()
{
DbgLv(0) << "AddSelections";
   // Get the list of selected items
   QList< QListWidgetItem* > selitems = lw_original->selectedItems();
   nbr_select   = selitems.count();

   for ( int ii = 0; ii < nbr_select; ii++ )
   {  // Move selected items from included to excluded
      QListWidgetItem* l_item   = selitems.at( ii );
      QString          triple   = l_item->text();
      lw_original->setCurrentItem  ( l_item, QItemSelectionModel::Deselect );
      excludes << triple;             // Add to excluded
      includes.removeOne( triple );   // Remove from included
   }

   excludes.sort();                   // Sort new excluded list
   lw_original->clear();              // Clear list widgets
   lw_selected->clear();
   nbr_incl     = includes.count();
   nbr_excl     = excludes.count();

   for ( int ii = 0; ii < nbr_incl; ii++ )     // Repopulate included widget
      lw_original->addItem( includes[ ii ] );

   for ( int ii = 0; ii < nbr_excl; ii++ )     // Repopulate excluded widget
      lw_selected->addItem( excludes[ ii ] );

   // Report the new state of things
   le_original->setText( ( nbr_incl == 1 ) ?
                         tr( "1 included triple" ) :
                         tr( "%1 included triples" ).arg( nbr_incl )
                       + tr( " (of %1 original)" ).arg( nbr_orig ) );
   le_selected->setText( ( nbr_excl == 1 ) ?
                         tr( "1 excluded triple" ) :
                         tr( "%1 excluded triples" ).arg( nbr_excl ) );

   // Enable/disable buttons appropriately
   pb_accept->setEnabled( nbr_excl > 0  &&  nbr_incl > 0 );
   pb_add   ->setEnabled( includes.count() > 0 );
   pb_remove->setEnabled( excludes.count() > 0 );
}

// Slot to remove items from the excluded list
void US_SelectTriples::rmv_selections()
{
DbgLv(0) << "RemoveSelections";
   // Get the list of selected items
   QList< QListWidgetItem* > selitems = lw_selected->selectedItems();
   nbr_select   = selitems.count();

   for ( int ii = 0; ii < nbr_select; ii++ )
   {  // Move selected items from excluded to included
      QListWidgetItem* l_item   = selitems.at( ii );
      QString          triple   = l_item->text();
      lw_selected->setCurrentItem  ( l_item, QItemSelectionModel::Deselect );
      includes << triple;             // Add to included
      excludes.removeOne( triple );   // Remove from excluded
   }

   includes.sort();                   // Sort new included list
   lw_original->clear();              // Clear list widgets
   lw_selected->clear();
   nbr_incl     = includes.count();
   nbr_excl     = excludes.count();

   for ( int ii = 0; ii < nbr_incl; ii++ )     // Repopulate included widget
      lw_original->addItem( includes[ ii ] );

   for ( int ii = 0; ii < nbr_excl; ii++ )     // Repopulate excluded widget
      lw_selected->addItem( excludes[ ii ] );

   // Report the new state of things
   le_original->setText( ( nbr_incl == 1 ) ?
                         tr( "1 included triple" ) :
                         tr( "%1 included triples" ).arg( nbr_incl )
                       + tr( " (of %1 original)" ).arg( nbr_orig ) );
   le_selected->setText( ( nbr_excl == 1 ) ?
                         tr( "1 excluded triple" ) :
                         tr( "%1 excluded triples" ).arg( nbr_excl ) );

   // Enable/disable buttons appropriately
   pb_accept->setEnabled( nbr_excl > 0  &&  nbr_incl > 0 );
   pb_add   ->setEnabled( includes.count() > 0 );
   pb_remove->setEnabled( excludes.count() > 0 );
}

// Reset the lists and buttons to their original state
void US_SelectTriples::reset( void )
{
   lw_original->clear();
   lw_selected->clear();
   excludes    .clear();
   includes      = original;
   nbr_select    = 0;

   for ( int ii = 0; ii < includes.count(); ii++ )
      lw_original->addItem( includes[ ii ] );

   le_original->setText( tr( "%1 original triples" ) .arg( nbr_orig ) );
   le_selected->setText( tr( "0 selected triples" ) );
   pb_accept->setEnabled( false );
   pb_add   ->setEnabled( includes.count() > 0 );
   pb_remove->setEnabled( excludes.count() > 0 );
}

// Cancel button clicked:  returned delete-selections is empty
void US_SelectTriples::cancel( void )
{
   triples.clear();

   reject();
   close();
}

// Accept button clicked:  returned delete-selections list is the excluded list
void US_SelectTriples::done( void )
{
   triples       = excludes;

   accept();
   close();
}