def removeRows(self, position, rows=1, index=QtCore.QModelIndex()):
"""Remove waypoint; overrides the corresponding QAbstractTableModel
method.
"""
# beginRemoveRows emits rowsAboutToBeRemoved(index, first, last).
self.beginRemoveRows(QtCore.QModelIndex(), position,
position + rows - 1)
self.waypoints = self.waypoints[:position] + self.waypoints[position +
rows:]
if position < len(self.waypoints):
self.update_distances(position,
rows=min(rows,
len(self.waypoints) - position))
# endRemoveRows emits rowsRemoved(index, first, last).
self.endRemoveRows()
self.modified = True
return True
def insertRows(self,
position,
rows=1,
index=QtCore.QModelIndex(),
waypoints=None):
"""Insert waypoint; overrides the corresponding QAbstractTableModel
method.
"""
if not waypoints:
waypoints = [Waypoint(0, 0, 0)] * rows
assert len(waypoints) == rows, (waypoints, rows)
self.beginInsertRows(QtCore.QModelIndex(), position,
position + rows - 1)
for row, wp in enumerate(waypoints):
self.waypoints.insert(position + row, wp)
self.update_distances(position, rows=rows)
self.endInsertRows()
self.modified = True
return True
def columnCount(self, index=QtCore.QModelIndex()):
return len(TABLE_FULL)
def rowCount(self, index=QtCore.QModelIndex()):
"""Number of waypoints in the model.
"""
return len(self.waypoints)