def __init__( self, engine_manager, package, version ):
super( QMainWindow, self ).__init__()
self._engine_manager = engine_manager
self.setupUi( self )
self.setWindowTitle( "{0} v{1}".format( package, version ) )
self.loopListViewModel = LoopListModel()
self.loopListView.setModel( self.loopListViewModel )
self.mappingTableViewModel = MappingTableModel()
self.mappingTableView.setModel( self.mappingTableViewModel )
# PyUIC doesn't generate code for word wrap :(
self.mappingTableView.setWordWrap( True )
self.mappingTableView.resizeRowsToContents()
tableHeader = self.mappingTableView.horizontalHeader()
tableHeader.setSectionResizeMode( QtWidgets.QHeaderView.Stretch )
# Only update the model on the GUI thread - thread-safe.
self.loopUpdated.connect(
self._loop_update_handler, type=QtCore.Qt.QueuedConnection )
self.mappingUpdated.connect(
self._mapping_update_handler, type=QtCore.Qt.QueuedConnection )
self._engine_manager.subscribe( "loops", self.signal_loop_update )
self._engine_manager.subscribe( "mappings", self.signal_mapping_update )
QtCore.QTimer.singleShot( 0, self.mappingTableView.resizeRowsToContents )
class _LooperWindow( QMainWindow, Ui_MainWindow ):
loopUpdated = QtCore.pyqtSignal( str, str )
mappingUpdated = QtCore.pyqtSignal( str, MIDIMappingInfo )
def __init__( self, engine_manager, package, version ):
super( QMainWindow, self ).__init__()
self._engine_manager = engine_manager
self.setupUi( self )
self.setWindowTitle( "{0} v{1}".format( package, version ) )
self.loopListViewModel = LoopListModel()
self.loopListView.setModel( self.loopListViewModel )
self.mappingTableViewModel = MappingTableModel()
self.mappingTableView.setModel( self.mappingTableViewModel )
# PyUIC doesn't generate code for word wrap :(
self.mappingTableView.setWordWrap( True )
self.mappingTableView.resizeRowsToContents()
tableHeader = self.mappingTableView.horizontalHeader()
tableHeader.setSectionResizeMode( QtWidgets.QHeaderView.Stretch )
# Only update the model on the GUI thread - thread-safe.
self.loopUpdated.connect(
self._loop_update_handler, type=QtCore.Qt.QueuedConnection )
self.mappingUpdated.connect(
self._mapping_update_handler, type=QtCore.Qt.QueuedConnection )
self._engine_manager.subscribe( "loops", self.signal_loop_update )
self._engine_manager.subscribe( "mappings", self.signal_mapping_update )
QtCore.QTimer.singleShot( 0, self.mappingTableView.resizeRowsToContents )
def signal_loop_update( self, change, data ):
self.loopUpdated.emit( change, data )
def signal_mapping_update( self, change, data ):
self.mappingUpdated.emit( change, data )
def _loop_update_handler( self, change, data ):
if change == "add":
self.loopListViewModel.insertLoopRow(
self.loopListViewModel.rowCount(), data )
elif change == "remove":
self.loopListViewModel.removeLoop( data )
else:
raise ValueError( "Invalid loop update!" )
def _mapping_update_handler( self, change, data ):
if change == "add":
self.mappingTableViewModel.insertMappingRow(
self.mappingTableViewModel.rowCount(), data )
self.mappingTableView.resizeRowsToContents() # HACK
elif change == "remove":
self.mappingTableViewModel.removeMapping( data )
else:
raise ValueError( "Invalid mapping update!" )
# Slots are named in camelcase for consistency with the rest of Qt.
def newLoop( self ):
new_loop_name, ok = QtWidgets.QInputDialog.getText( self, "New Loop",
"Provide the name for the new loop." )
if ok:
self._engine_manager.new_loop( new_loop_name )
def removeLoops( self ):
# Gets the names because a normal iterative removal would invalidate the
# index list at each step. This is not particularly efficient.
selected = [self.loopListViewModel.data( x ) for x in
self.loopListView.selectedIndexes()]
self._engine_manager.remove_loops( selected )
def newMapping( self ):
loops = [
self.loopListViewModel.data( self.loopListViewModel.createIndex( x, 0 ) )
for x in range( 0, self.loopListViewModel.rowCount() ) ]
if not loops:
QtWidgets.QMessageBox.warning( self, "No loops",
"You must add a loop before defining mappings." )
return
mapping_dialog = _MappingDialog( loops, self )
if mapping_dialog.exec_():
channel, midi_type, value, name, action = mapping_dialog.getMappingData()
self._engine_manager.new_mapping(
MIDIMappingInfo( channel, midi_type, value, name, action ) )
def removeMappings( self ):
mappings = [self.mappingTableViewModel.dataRow( x.row() )
for x in self.mappingTableView.selectionModel().selectedRows()]
self._engine_manager.remove_mappings( mappings )