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Use custom mime format for internal data exchange in Favorites tree

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This commit is contained in:
Abs62 2017-05-29 18:21:52 +03:00
parent 21516284a1
commit e6cd429965
2 changed files with 74 additions and 140 deletions
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113
favoritespanewidget.cc
View file

@ -8,7 +8,6 @@
#include <QClipboard>
#include <QDomDocument>
#include <QMessageBox>
#include <QMimeData>
#include <QtAlgorithms>
#include <QMap>
@ -771,34 +770,27 @@ void FavoritesModel::checkNodeForExpand( const TreeItem * item, const QModelInde
QStringList FavoritesModel::mimeTypes() const
{
return QStringList( QString::fromLatin1( "text/plain" ) );
return QStringList( QString::fromLatin1( FAVORITES_MIME_TYPE ) );
}
QMimeData *FavoritesModel::mimeData( const QModelIndexList &indexes ) const
QMimeData *FavoritesModel::mimeData( const QModelIndexList & indexes ) const
{
QString headwords;
QList< QModelIndex >::const_iterator it = indexes.begin();
for ( ; it != indexes.end(); ++it )
{
TreeItem *item = getItem( *it );
headwords += item->fullPath() + "\n\r";
headwords += item->data().toString() + "\n\r";
headwords += QString::number( item->type() ) + "\n\r";
}
QMimeData *data = new QMimeData();
data->setText( headwords );
FavoritesMimeData *data = new FavoritesMimeData();
data->setIndexesList( indexes );
return data;
}
bool FavoritesModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
int row, int, const QModelIndex &par)
bool FavoritesModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
int row, int, const QModelIndex &par )
{
if( action == Qt::MoveAction || action == Qt::CopyAction )
{
QList< QModelIndex > list;
list = itemsListFromText( data->text() );
if( data->hasFormat( FAVORITES_MIME_TYPE ) )
{
FavoritesMimeData const * mimeData = qobject_cast< FavoritesMimeData const * >( data );
if( mimeData )
{
QModelIndexList const & list = mimeData->getIndexesList();
if( list.isEmpty() )
return false;
@ -837,6 +829,8 @@ bool FavoritesModel::dropMimeData(const QMimeData *data, Qt::DropAction action,
return true;
}
}
}
return false;
}
@ -853,85 +847,6 @@ QModelIndex FavoritesModel::findItemInFolder( const QString & itemName, int item
return QModelIndex();
}
QModelIndex FavoritesModel::findItem( const QString & path,
const QString & headword,
int type )
{
TreeItem *par = rootItem;
if( !path.isEmpty() )
{
// Find target folder
QStringList folders = path.split( "/", QString::SkipEmptyParts );
QStringList::const_iterator it = folders.begin();
for( ; it != folders.end(); ++it )
{
int i;
for( i = 0; i < par->childCount(); i++ )
{
TreeItem * item = par->child( i );
QString name = item->data().toString();
if( *it == name && item->type() == TreeItem::Folder )
break;
}
if( i >= par->childCount() ) // Folder not found
return QModelIndex();
par = par->child( i );
}
}
// Find headword/folder in target folder
for( int i = 0; i < par->childCount(); i++ )
{
TreeItem * item = par->child( i );
QString name = item->data().toString();
if( name == headword && item->type() == type )
{
// Item found, create index
return createIndex( i, 0, item );
}
}
return QModelIndex();
}
QList< QModelIndex > FavoritesModel::itemsListFromText( const QString & text )
{
int pos = 0;
QString delim = QString::fromLatin1( "\n\r" );
QList< QModelIndex > list;
for( ; ; )
{
int delimPos = text.indexOf( delim, pos );
if( delimPos < 0 )
break;
QString path = text.mid( pos, delimPos - pos );
pos = delimPos + 2;
delimPos = text.indexOf( delim, pos );
if( delimPos < 0 )
break;
QString headword = text.mid( pos, delimPos - pos );
pos = delimPos + 2;
delimPos = text.indexOf( delim, pos );
if( delimPos < 0 )
break;
int type = text.mid( pos, delimPos - pos ).toInt();
QModelIndex idx = findItem( path, headword, type );
if( idx.isValid() )
list.append( idx );
pos = delimPos + 2;
}
return list;
}
TreeItem *FavoritesModel::getItem( const QModelIndex &index ) const
{
if( index.isValid() )

35
favoritespanewidget.hh
View file

@ -13,6 +13,7 @@
#include <QMenu>
#include <QDomNode>
#include <QList>
#include <QMimeData>
#include <config.hh>
#include "delegate.hh"
@ -220,14 +221,6 @@ protected:
QModelIndex findItemInFolder( QString const & itemName, int itemType,
QModelIndex const & parentIdx );
// Find item by it params
QModelIndex findItem( QString const & path,
QString const & headword,
int type );
// Create items list from mime "plait/text" data
QList< QModelIndex > itemsListFromText( QString const & text );
TreeItem *getItem( const QModelIndex &index ) const;
// Find folder with given name or create it if folder not exist
@ -247,4 +240,30 @@ private:
bool dirty;
};
#define FAVORITES_MIME_TYPE "application/x-goldendict-tree-items"
class FavoritesMimeData : public QMimeData
{
Q_OBJECT
public:
FavoritesMimeData() : QMimeData()
{}
virtual QStringList formats() const
{ return QStringList( QString::fromLatin1( FAVORITES_MIME_TYPE ) ); }
virtual bool hasFormat(const QString & mimetype) const
{ return mimetype.compare( QString::fromLatin1( FAVORITES_MIME_TYPE ) ) == 0; }
void setIndexesList( QModelIndexList const & list )
{ indexes.clear(); indexes = list; }
QModelIndexList const & getIndexesList() const
{ return indexes; }
private:
QStringList mimeFormats;
QModelIndexList indexes;
};
#endif // __FAVORITIESPANEWIDGET_HH__INCLUDED__