/*****************************************************************************
* playlist_model.cpp : Manage playlist model
****************************************************************************
- * Copyright (C) 2006-2007 the VideoLAN team
+ * Copyright (C) 2006-2011 the VideoLAN team
* $Id$
*
* Authors: Clément Stenac <zorglub@videolan.org>
#include <QDesktopServices>
#include <QInputDialog>
#include <QSignalMapper>
-#include <QPixmapCache>
#define I_NEW_DIR \
I_DIR_OR_FOLDER( N_("Create Directory"), N_( "Create Folder" ) )
intf_thread_t *_p_intf, /* main Qt p_intf */
playlist_item_t * p_root,
QObject *parent ) /* Basic Qt parent */
- : QAbstractItemModel( parent )
+ : VLCModel( _p_intf, parent )
{
- p_intf = _p_intf;
p_playlist = _p_playlist;
i_cached_id = -1;
i_cached_input_id = -1;
ADD_ICON( NODE, ":/type/node" );
#undef ADD_ICON
+ i_zoom = getSettings()->value( "Playlist/zoom", 0 ).toInt();
+
rebuild( p_root );
DCONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
this, processInputItemUpdate( input_item_t *) );
PLModel::~PLModel()
{
+ getSettings()->setValue( "Playlist/zoom", i_zoom );
delete rootItem;
delete sortingMenu;
}
else
item = getItem( index );
- plMimeData->appendItem( item->p_input );
+ plMimeData->appendItem( item->inputItem() );
}
return plMimeData;
/* Drop operation */
bool PLModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
- int row, int column, const QModelIndex &parent )
+ int row, int, const QModelIndex &parent )
{
bool copy = action == Qt::CopyAction;
if( !copy && action != Qt::MoveAction )
PL_LOCK;
playlist_item_t *p_parent =
- playlist_ItemGetByInput( p_playlist, target->p_input );
+ playlist_ItemGetByInput( p_playlist, target->inputItem() );
if( !p_parent ) return;
if( pos == -1 ) pos = PLAYLIST_END;
{
QList<input_item_t*> inputItems = plMimeData->inputItems();
QList<PLItem*> model_items;
- playlist_item_t *pp_items[inputItems.size()];
+ playlist_item_t *pp_items[inputItems.count()];
PL_LOCK;
playlist_item_t *p_parent =
- playlist_ItemGetByInput( p_playlist, target->p_input );
+ playlist_ItemGetByInput( p_playlist, target->inputItem() );
if( !p_parent || row > p_parent->i_children )
{
{
PL_UNLOCK; return;
}
- climber = climber->parentItem;
+ climber = climber->parent();
}
- if( item->parentItem == target &&
+ if( item->parent() == target &&
target->children.indexOf( item ) < new_pos )
model_pos--;
PL_UNLOCK;
}
-/* Must be entered with lock */
+/* Convenient overloaded private version of activateItem
+ * Must be entered with PL lock */
void PLModel::activateItem( playlist_item_t *p_item )
{
if( !p_item ) return;
playlist_item_t *p_parent = p_item;
while( p_parent )
{
- if( p_parent->i_id == rootItem->i_id ) break;
+ if( p_parent->i_id == rootItem->id() ) break;
p_parent = p_parent->p_parent;
}
if( p_parent )
QString returninfo;
if( metadata == COLUMN_NUMBER )
returninfo = QString::number( index.row() + 1 );
+ else if( metadata == COLUMN_COVER )
+ {
+ QString artUrl;
+ artUrl = InputManager::decodeArtURL( item->inputItem() );
+ if( artUrl.isEmpty() )
+ {
+ for( int i = 0; i < item->childCount(); i++ )
+ {
+ artUrl = InputManager::decodeArtURL( item->child( i )->inputItem() );
+ if( !artUrl.isEmpty() )
+ break;
+ }
+ }
+ return QVariant( artUrl );
+ }
else
{
- char *psz = psz_column_meta( item->p_input, metadata );
+ char *psz = psz_column_meta( item->inputItem(), metadata );
returninfo = qfu( psz );
free( psz );
}
else if( role == Qt::DecorationRole && index.column() == 0 )
{
/* Used to segfault here because i_type wasn't always initialized */
- return QVariant( PLModel::icons[item->p_input->i_type] );
+ return QVariant( PLModel::icons[item->inputItem()->i_type] );
}
else if( role == Qt::FontRole )
{
QFont f;
- f.setPointSize( f.pointSize() - 1 );
+ f.setPointSize( __MAX( f.pointSize() - 1 + i_zoom, 4 ) );
if( isCurrent( index ) )
f.setBold( true );
return QVariant( f );
{
return QVariant( QBrush( Qt::gray ) );
}
- else if( role == IsCurrentRole ) return QVariant( isCurrent( index ) );
+ else if( role == IsCurrentRole )
+ {
+ return QVariant( isCurrent( index ) );
+ }
else if( role == IsLeafNodeRole )
{
QVariant isLeaf;
bool PLModel::isCurrent( const QModelIndex &index ) const
{
- return getItem( index )->p_input == THEMIM->currentInputItem();
+ return getItem( index )->inputItem() == THEMIM->currentInputItem();
}
int PLModel::itemId( const QModelIndex &index ) const
{
- return getItem( index )->i_id;
+ return getItem( index )->id();
}
QVariant PLModel::headerData( int section, Qt::Orientation orientation,
PLItem *parentItem = childItem->parent();
if( !parentItem || parentItem == rootItem ) return QModelIndex();
- if( !parentItem->parentItem )
+ if( !parentItem->parent() )
{
msg_Err( p_playlist, "No parent parent, trying row 0 " );
msg_Err( p_playlist, "----- PLEASE REPORT THIS ------" );
return createIndex(parentItem->row(), 0, parentItem);
}
-int PLModel::columnCount( const QModelIndex &i) const
+int PLModel::columnCount( const QModelIndex &) const
{
return columnFromMeta( COLUMN_END );
}
QStringList PLModel::selectedURIs()
{
QStringList lst;
- for( int i = 0; i < current_selection.size(); i++ )
+ for( int i = 0; i < current_selection.count(); i++ )
{
const PLItem *item = getItem( current_selection[i] );
if( item )
{
if( !root ) return NULL;
- if( !b_input && root->i_id == i_id )
+ if( !b_input && root->id() == i_id )
return root;
- else if( b_input && root->p_input->i_id == i_id )
+ else if( b_input && root->inputItem()->i_id == i_id )
return root;
QList<PLItem *>::iterator it = root->children.begin();
while ( it != root->children.end() )
{
- if( !b_input && (*it)->i_id == i_id )
+ if( !b_input && (*it)->id() == i_id )
return (*it);
- else if( b_input && (*it)->p_input->i_id == i_id )
+ else if( b_input && (*it)->inputItem()->i_id == i_id )
return (*it);
- if( (*it)->children.size() )
+ if( (*it)->childCount() )
{
PLItem *childFound = findInner( (*it), i_id, b_input );
if( childFound )
return childFound;
}
- it++;
+ ++it;
}
return NULL;
}
-int PLModel::columnToMeta( int _column )
-{
- int meta = 1;
- int column = 0;
-
- while( column != _column && meta != COLUMN_END )
- {
- meta <<= 1;
- column++;
- }
-
- return meta;
-}
-
-int PLModel::columnFromMeta( int meta_col )
-{
- int meta = 1;
- int column = 0;
-
- while( meta != meta_col && meta != COLUMN_END )
- {
- meta <<= 1;
- column++;
- }
-
- return column;
-}
-
bool PLModel::canEdit() const
{
return (
rootItem != NULL &&
(
- rootItem->p_input == p_playlist->p_playing->p_input ||
+ rootItem->inputItem() == p_playlist->p_playing->p_input ||
( p_playlist->p_media_library &&
- rootItem->p_input == p_playlist->p_media_library->p_input )
+ rootItem->inputItem() == p_playlist->p_media_library->p_input )
)
);
}
-QString PLModel::getMeta( const QModelIndex & index, int meta )
-{
- return index.model()->index( index.row(),
- PLModel::columnFromMeta( meta ),
- index.parent() )
- .data().toString();
-}
-
-QPixmap PLModel::getArtPixmap( const QModelIndex & index, const QSize & size )
-{
- PLItem *item = static_cast<PLItem*>( index.internalPointer() );
- assert( item );
-
- QString artUrl = InputManager::decodeArtURL( item->inputItem() );
-
- /* If empty, take one of the children art URL */
- if( artUrl.isEmpty() )
- {
- for( int i = 0; i < item->childCount(); i++ )
- {
- artUrl = InputManager::decodeArtURL( item->child( i )->inputItem() );
- if( !artUrl.isEmpty() )
- break;
- }
- }
-
- QPixmap artPix;
- QString key = artUrl + QString("%1%2").arg(size.width()).arg(size.height());
-
- /* Lookup in the QPixmapCache */
- if( !QPixmapCache::find( key, artPix ))
- {
- if( artUrl.isEmpty() || !artPix.load( artUrl ) )
- {
- key = QString("noart%1%2").arg(size.width()).arg(size.height());
- if( !QPixmapCache::find( key, artPix ) )
- {
- artPix = QPixmap( ":/noart" ).scaled( size,
- Qt::KeepAspectRatio,
- Qt::SmoothTransformation );
- QPixmapCache::insert( key, artPix );
- }
- }
- else
- {
- artPix = artPix.scaled( size, Qt::KeepAspectRatio, Qt::SmoothTransformation );
- QPixmapCache::insert( key, artPix );
- }
- }
-
- return artPix;
-}
/************************* Updates handling *****************************/
/**** Events processing ****/
{
playlist_item_t *p_item = NULL;
PLItem *newItem = NULL;
- input_thread_t *currentInputThread;
int pos;
- PLItem *nodeItem = findById( rootItem, i_parent );
- if( !nodeItem ) return;
+ /* Find the Parent */
+ PLItem *nodeParentItem = findById( rootItem, i_parent );
+ if( !nodeParentItem ) return;
- foreach( const PLItem *existing, nodeItem->children )
+ /* Search for an already matching children */
+ foreach( const PLItem *existing, nodeParentItem->children )
if( existing->i_id == i_item ) return;
+ /* Find the child */
PL_LOCK;
p_item = playlist_ItemGetById( p_playlist, i_item );
if( !p_item || p_item->i_flags & PLAYLIST_DBL_FLAG )
for( pos = 0; pos < p_item->p_parent->i_children; pos++ )
if( p_item->p_parent->pp_children[pos] == p_item ) break;
- newItem = new PLItem( p_item, nodeItem );
+ newItem = new PLItem( p_item, nodeParentItem );
PL_UNLOCK;
- beginInsertRows( index( nodeItem, 0 ), pos, pos );
- nodeItem->insertChild( newItem, pos );
+ /* We insert the newItem (children) inside the parent */
+ beginInsertRows( index( nodeParentItem, 0 ), pos, pos );
+ nodeParentItem->insertChild( newItem, pos );
endInsertRows();
- if( newItem->p_input == THEMIM->currentInputItem() )
+ if( newItem->inputItem() == THEMIM->currentInputItem() )
emit currentChanged( index( newItem, 0 ) );
}
-void PLModel::rebuild()
-{
- rebuild( NULL );
-}
-
void PLModel::rebuild( playlist_item_t *p_root )
{
- playlist_item_t* p_item;
-
/* Invalidate cache */
i_cached_id = i_cached_input_id = -1;
if( rootItem ) rootItem->removeChildren();
PL_LOCK;
- if( p_root )
+ if( p_root ) // Can be NULL
{
delete rootItem;
rootItem = new PLItem( p_root );
void PLModel::takeItem( PLItem *item )
{
assert( item );
- PLItem *parent = item->parentItem;
+ PLItem *parent = item->parent();
assert( parent );
int i_index = parent->children.indexOf( item );
void PLModel::insertChildren( PLItem *node, QList<PLItem*>& items, int i_pos )
{
assert( node );
- int count = items.size();
+ int count = items.count();
if( !count ) return;
+ printf( "Here I am\n");
beginInsertRows( index( node, 0 ), i_pos, i_pos + count - 1 );
for( int i = 0; i < count; i++ )
{
i_cached_id = -1;
i_cached_input_id = -1;
- if( item->parentItem ) {
- int i = item->parentItem->children.indexOf( item );
- beginRemoveRows( index( item->parentItem, 0), i, i );
- item->parentItem->children.removeAt(i);
+ if( item->parent() ) {
+ int i = item->parent()->children.indexOf( item );
+ beginRemoveRows( index( item->parent(), 0), i, i );
+ item->parent()->children.removeAt(i);
delete item;
endRemoveRows();
}
/* This function must be entered WITH the playlist lock */
void PLModel::updateChildren( PLItem *root )
{
- playlist_item_t *p_node = playlist_ItemGetById( p_playlist, root->i_id );
+ playlist_item_t *p_node = playlist_ItemGetById( p_playlist, root->id() );
updateChildren( p_node, root );
}
if( index.column() != 0 ) continue;
PLItem *item = getItem( index );
- if( item->children.size() )
+ if( item->childCount() )
recurseDelete( item->children, &selected );
PL_LOCK;
- playlist_DeleteFromInput( p_playlist, item->p_input, pl_Locked );
+ playlist_DeleteFromInput( p_playlist, item->inputItem(), pl_Locked );
PL_UNLOCK;
removeItem( item );
void PLModel::recurseDelete( QList<PLItem*> children, QModelIndexList *fullList )
{
- for( int i = children.size() - 1; i >= 0 ; i-- )
+ for( int i = children.count() - 1; i >= 0 ; i-- )
{
PLItem *item = children[i];
- if( item->children.size() )
+ if( item->childCount() )
recurseDelete( item->children, fullList );
fullList->removeAll( index( item, 0 ) );
}
/******* Volume III: Sorting and searching ********/
void PLModel::sort( const int column, Qt::SortOrder order )
{
- sort( rootItem->i_id, column, order );
+ sort( rootItem->id(), column, order );
}
void PLModel::sort( const int i_root_id, const int column, Qt::SortOrder order )
PLItem *item = findById( rootItem, i_root_id );
if( !item ) return;
QModelIndex qIndex = index( item, 0 );
- int count = item->children.size();
+ int count = item->childCount();
if( count )
{
beginRemoveRows( qIndex, 0, count - 1 );
playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
itemId( idx ) );
assert( p_root );
- const char *psz_name = qtu( search_text );
- playlist_LiveSearchUpdate( p_playlist , p_root, psz_name, b_recursive );
-
+ playlist_LiveSearchUpdate( p_playlist , p_root, qtu( search_text ),
+ b_recursive );
if( idx.isValid() )
{
PLItem *searchRoot = getItem( idx );
- beginRemoveRows( idx, 0, searchRoot->children.size() - 1 );
+ beginRemoveRows( idx, 0, searchRoot->childCount() - 1 );
searchRoot->removeChildren();
endRemoveRows( );
- beginInsertRows( idx, 0, searchRoot->children.size() - 1 );
+ beginInsertRows( idx, 0, searchRoot->childCount() - 1 );
updateChildren( searchRoot ); // The PL_LOCK is needed here
endInsertRows();
/*********** Popup *********/
bool PLModel::popup( const QModelIndex & index, const QPoint &point, const QModelIndexList &list )
{
- int i_id = index.isValid() ? itemId( index ) : rootItem->i_id;
+ int i_id = index.isValid() ? itemId( index ) : rootItem->id();
PL_LOCK;
playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id );
return false;
}
- input_item_t *p_input = p_item->p_input;
- vlc_gc_incref( p_input );
-
- i_popup_item = index.isValid() ? p_item->i_id : -1;
+ i_popup_item = index.isValid() ? p_item->i_id : -1;
i_popup_parent = index.isValid() ?
( p_item->p_parent ? p_item->p_parent->i_id : -1 ) :
- ( rootItem->i_id );
- i_popup_column = index.column();
+ ( rootItem->id() );
- bool tree = ( rootItem && rootItem->i_id != p_playlist->p_playing->i_id ) ||
+ bool tree = ( rootItem && rootItem->id() != p_playlist->p_playing->i_id ) ||
var_InheritBool( p_intf, "playlist-tree" );
+ input_item_t *p_input = p_item->p_input;
+ vlc_gc_incref( p_input );
PL_UNLOCK;
- current_selection = list;
-
+ /* */
QMenu menu;
+
+ /* Play/Stream/Info static actions */
if( i_popup_item > -1 )
{
menu.addAction( QIcon( ":/menu/play" ), qtr(I_POP_PLAY), this, SLOT( popupPlay() ) );
qtr(I_POP_STREAM), this, SLOT( popupStream() ) );
menu.addAction( qtr(I_POP_SAVE), this, SLOT( popupSave() ) );
menu.addAction( QIcon( ":/menu/info" ), qtr(I_POP_INFO), this, SLOT( popupInfo() ) );
- if( !strncasecmp( p_input->psz_uri, "file://", 7 ) )
+ if( p_input->psz_uri && !strncasecmp( p_input->psz_uri, "file://", 7 ) )
+ {
menu.addAction( QIcon( ":/type/folder-grey" ),
qtr( I_POP_EXPLORE ), this, SLOT( popupExplore() ) );
+ }
menu.addSeparator();
}
+ vlc_gc_decref( p_input );
+
+ /* In PL or ML, allow to add a file/folder */
if( canEdit() )
{
QIcon addIcon( ":/buttons/playlist/playlist_add" );
menu.addSeparator();
if( tree ) menu.addAction( addIcon, qtr(I_POP_NEWFOLDER), this, SLOT( popupAddNode() ) );
- if( rootItem->i_id == THEPL->p_playing->i_id )
+ if( rootItem->id() == THEPL->p_playing->i_id )
{
menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simplePLAppendDialog()) );
menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( PLAppendDir()) );
menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( PLAppendDialog()) );
}
else if( THEPL->p_media_library &&
- rootItem->i_id == THEPL->p_media_library->i_id )
+ rootItem->id() == THEPL->p_media_library->i_id )
{
menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simpleMLAppendDialog()) );
menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( MLAppendDir() ) );
menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( MLAppendDialog() ) );
}
}
+
+ /* Item removal */
if( i_popup_item > -1 )
{
+ if( rootItem->id() != THEPL->p_playing->i_id )
+ menu.addAction( qtr( "Add to playlist"), this, SLOT( popupAddToPlaylist() ) );
menu.addAction( QIcon( ":/buttons/playlist/playlist_remove" ),
qtr(I_POP_DEL), this, SLOT( popupDel() ) );
menu.addSeparator();
- if( !sortingMenu )
+ }
+
+ /* Playlist sorting */
+ if( !sortingMenu )
+ {
+ sortingMenu = new QMenu( qtr( "Sort by" ) );
+ sortingMapper = new QSignalMapper( this );
+ /* Choose what columns to show in sorting menu, not sure if this should be configurable*/
+ QList<int> sortingColumns;
+ sortingColumns << COLUMN_TITLE << COLUMN_ARTIST << COLUMN_ALBUM << COLUMN_TRACK_NUMBER << COLUMN_URI;
+ foreach( int Column, sortingColumns )
{
- sortingMenu = new QMenu( qtr( "Sort by" ) );
- sortingMapper = new QSignalMapper( this );
- int i, j;
- for( i = 1, j = 1; i < COLUMN_END; i <<= 1, j++ )
- {
- if( i == COLUMN_NUMBER ) continue;
- QMenu *m = sortingMenu->addMenu( qfu( psz_column_title( i ) ) );
- QAction *asc = m->addAction( qtr("Ascending") );
- QAction *desc = m->addAction( qtr("Descending") );
- sortingMapper->setMapping( asc, j );
- sortingMapper->setMapping( desc, -j );
- CONNECT( asc, triggered(), sortingMapper, map() );
- CONNECT( desc, triggered(), sortingMapper, map() );
- }
- CONNECT( sortingMapper, mapped( int ), this, popupSort( int ) );
+ QAction *asc = sortingMenu->addAction( qfu( psz_column_title( Column ) ) + " " + qtr("Ascending") );
+ QAction *desc = sortingMenu->addAction( qfu( psz_column_title( Column ) ) + " " + qtr("Descending") );
+ sortingMapper->setMapping( asc, columnFromMeta(Column) + 1 );
+ sortingMapper->setMapping( desc, -1 * (columnFromMeta(Column)+1) );
+ CONNECT( asc, triggered(), sortingMapper, map() );
+ CONNECT( desc, triggered(), sortingMapper, map() );
}
- menu.addMenu( sortingMenu );
+ CONNECT( sortingMapper, mapped( int ), this, popupSort( int ) );
}
- vlc_gc_decref( p_input );
+ menu.addMenu( sortingMenu );
+
+ /* Zoom */
+ QMenu *zoomMenu = new QMenu( qtr( "Display size" ) );
+ zoomMenu->addAction( qtr( "Increase" ), this, SLOT( increaseZoom() ) );
+ zoomMenu->addAction( qtr( "Decrease" ), this, SLOT( decreaseZoom() ) );
+ menu.addMenu( zoomMenu );
+ /* Store the current selected item for popup*() methods */
+ current_selection = list;
+
+ /* Display and forward the result */
if( !menu.isEmpty() )
{
menu.exec( point ); return true;
PL_UNLOCK;
}
+void PLModel::popupAddToPlaylist()
+{
+ playlist_Lock( THEPL );
+
+ foreach( QModelIndex currentIndex, current_selection )
+ {
+ playlist_item_t *p_item = playlist_ItemGetById( THEPL, itemId( currentIndex ) );
+ if( !p_item ) continue;
+
+ playlist_NodeAddCopy( THEPL, p_item,
+ THEPL->p_playing,
+ PLAYLIST_END );
+ }
+ playlist_Unlock( THEPL );
+}
+
void PLModel::popupInfo()
{
PL_LOCK;
QStringList mrls = selectedURIs();
if( !mrls.isEmpty() )
THEDP->streamingDialog( NULL, mrls[0], false );
-
}
void PLModel::popupSave()
void PLModel::popupExplore()
{
+ char *uri = NULL, *path = NULL;
+
PL_LOCK;
- playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
- i_popup_item );
+ playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_popup_item );
if( p_item )
{
input_item_t *p_input = p_item->p_input;
- char *psz_meta = input_item_GetURI( p_input );
- PL_UNLOCK;
- if( psz_meta )
- {
- const char *psz_access;
- const char *psz_demux;
- char *psz_path;
- input_SplitMRL( &psz_access, &psz_demux, &psz_path, psz_meta );
-
- if( !EMPTY_STR( psz_access ) && (
- !strncasecmp( psz_access, "file", 4 ) ||
- !strncasecmp( psz_access, "dire", 4 ) ))
- {
-#ifdef WIN32
- /* Qt openURL doesn't know to open files that starts with a / or \ */
- if( psz_path[0] == '/' || psz_path[0] == '\\' )
- psz_path++;
-#endif
+ uri = input_item_GetURI( p_input );
+ }
+ PL_UNLOCK;
- QFileInfo info( qfu( decode_URI( psz_path ) ) );
- QDesktopServices::openUrl(
- QUrl::fromLocalFile( info.absolutePath() ) );
- }
- free( psz_meta );
- }
+ if( uri != NULL )
+ {
+ path = make_path( uri );
+ free( uri );
}
- else
- PL_UNLOCK;
+ if( path == NULL )
+ return;
+
+ QFileInfo info( qfu( path ) );
+ free( path );
+
+ QDesktopServices::openUrl( QUrl::fromLocalFile( info.absolutePath() ) );
}
void PLModel::popupAddNode()
column > 0 ? Qt::AscendingOrder : Qt::DescendingOrder );
}
-/******************* Drag and Drop helper class ******************/
+/* */
+void PLModel::increaseZoom()
+{
+ i_zoom++;
+ emit layoutChanged();
+}
-PlMimeData::PlMimeData( )
-{ }
+void PLModel::decreaseZoom()
+{
+ i_zoom--;
+ emit layoutChanged();
+}
+/******************* Drag and Drop helper class ******************/
PlMimeData::~PlMimeData()
{
foreach( input_item_t *p_item, _inputItems )
projects / vlc / blobdiff