standarditemmodel.cpp

   1 #include "mainwindow.h"
   2 #include "standarditemmodel.h"
   3
   4 StandardItemModel::StandardItemModel( MainWindow* aparent ) : p( aparent ) {
   5 }
   6
   7 QStringList StandardItemModel::mimeTypes() const {
   8     QStringList types;
   9     types << "qsnip/itempointer";
  10     types << "text/plain";
  11     return types;
  12 }
  13
  14 QMimeData* StandardItemModel::mimeData( const QModelIndexList &indexes ) const {
  15     QMimeData *mimeData = new QMimeData();
  16     QByteArray encodedData;
  17
  18     QDataStream stream( &encodedData, QIODevice::WriteOnly );
  19
  20     foreach( QModelIndex index, indexes ) {
  21         Snippet* snippet = p->snippetForItem.value( itemFromIndex( index ) );
  22         stream << QString::number( (long)itemFromIndex( index ) );
  23         if( !snippet->isCategory() )
  24             mimeData->setText( snippet->code() );
  25     }
  26
  27     mimeData->setData( "qsnip/itempointer", encodedData );
  28     return mimeData;
  29 }
  30
  31 bool StandardItemModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
  32                                      int, int, const QModelIndex &parent ) {
  33     if( action == Qt::IgnoreAction )
  34         return true;
  35
  36     QByteArray encodedData = data->data( "qsnip/itempointer" );
  37     QDataStream stream( &encodedData, QIODevice::ReadOnly );
  38     QStringList newItems;
  39
  40     while( !stream.atEnd() ) {
  41         QString text;
  42         stream >> text;
  43         newItems << text;
  44     }
  45
  46     QStandardItem* itemToMove = ( QStandardItem* )newItems.at( 0 ).toLong();
  47     Snippet* newParentSnippet = p->snippetForItem.value( itemFromIndex( parent ) );
  48     if( !newParentSnippet )
  49         newParentSnippet = p->snippetForItem.value( invisibleRootItem() );
  50     Snippet* snippet = p->snippetForItem.value( itemToMove );
  51
  52     if( !snippet || !itemToMove )
  53         return false;
  54     if( itemToMove->parent() == itemFromIndex( parent ) )
  55         return false;
  56     if( !newParentSnippet->isCategory() )
  57         return false;
  58
  59     if( !itemToMove->parent() )
  60         itemToMove = takeRow( itemToMove->index().row() ).at( 0 );
  61     else
  62         itemToMove = itemToMove->parent()->takeRow( itemToMove->index().row() ).at( 0 );
  63
  64     p->insertItem( itemToMove, p->snippetForItem.key( newParentSnippet ) );
  65
  66     return true;
  67 }