WSortFilterProxyModel::Item *
WSortFilterProxyModel::itemFromIndex(const WModelIndex& index) const
{
if (index.isValid()) {
Item *parentItem = parentItemFromIndex(index);
WModelIndex sourceIndex
= sourceModel()->index(parentItem->proxyRowMap_[index.row()],
index.column(), parentItem->sourceIndex_);
return itemFromSourceIndex(sourceIndex);
} else
return itemFromSourceIndex(WModelIndex());
}
bool QgsComposerProxyModel::lessThan( const QModelIndex &left, const QModelIndex &right ) const
{
//sort by item id
const QgsComposerItem *item1 = itemFromSourceIndex( left );
const QgsComposerItem *item2 = itemFromSourceIndex( right );
if ( !item1 )
return false;
if ( !item2 )
return true;
return QString::localeAwareCompare( item1->displayName(), item2->displayName() ) < 0;
}
WModelIndex WSortFilterProxyModel::mapFromSource(const WModelIndex& sourceIndex)
const
{
if (sourceIndex.isValid()) {
WModelIndex sourceParent = sourceIndex.parent();
Item *item = itemFromSourceIndex(sourceParent);
int row = item->sourceRowMap_[sourceIndex.row()];
if (row != -1)
return createIndex(row, sourceIndex.column(),
static_cast<void *>(item));
else
return WModelIndex();
} else
return WModelIndex();
}
bool QgsComposerProxyModel::filterAcceptsRow( int source_row, const QModelIndex &source_parent ) const
{
//get QgsComposerItem corresponding to row
QModelIndex index = sourceModel()->index( source_row, 0, source_parent );
QgsComposerItem *item = itemFromSourceIndex( index );
if ( !item )
return false;
// specific exceptions
if ( mExceptedList.contains( item ) )
return false;
// filter by type
if ( mItemTypeFilter != QgsComposerItem::ComposerItem && item->type() != mItemTypeFilter )
return false;
return true;
}
