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| """Implementation of the Datamodel for the parts list with natural sort.""" | |
| import re | |
| import wx | |
| import wx.dataview as dv | |
| BOM_COL = 6 | |
| POS_COL = 7 | |
| class PartListDataModel(dv.PyDataViewModel): | |
| """Datamodel for use with the DataViewCtrl of the mainwindow.""" | |
| def __init__(self): | |
| super().__init__() | |
| self.data = [] | |
| @staticmethod | |
| def natural_sort_key(s): | |
| """Return a tuple that can be used for natural sorting.""" | |
| return [ | |
| int(text) if text.isdigit() else text.lower() | |
| for text in re.split("([0-9]+)", s) | |
| ] | |
| def GetColumnCount(self): | |
| return 10 | |
| def GetColumnType(self, col): | |
| columntypes = ( | |
| "string", | |
| "string", | |
| "string", | |
| "string", | |
| "string", | |
| "string", | |
| "wxDataViewIconText", | |
| "wxDataViewIconText", | |
| "string", | |
| "string", | |
| ) | |
| return columntypes[col] | |
| def GetChildren(self, parent, children): | |
| if not parent: | |
| for row in self.data: | |
| children.append(self.ObjectToItem(row)) | |
| return len(self.data) | |
| return 0 | |
| def IsContainer(self, item): | |
| return not item | |
| def GetParent(self, item): | |
| return dv.NullDataViewItem | |
| def GetValue(self, item, col): | |
| row = self.ItemToObject(item) | |
| if col in [BOM_COL, POS_COL]: | |
| icon = row[col] | |
| return dv.DataViewIconText("", icon) | |
| return row[col] | |
| def SetValue(self, value, item, col): | |
| row = self.ItemToObject(item) | |
| if col in [BOM_COL, POS_COL]: | |
| return False | |
| row[col] = value | |
| return True | |
| def Compare(self, item1, item2, column, ascending): | |
| """Override to implement natural sorting.""" | |
| val1 = self.GetValue(item1, column) | |
| val2 = self.GetValue(item2, column) | |
| key1 = self.natural_sort_key(val1) | |
| key2 = self.natural_sort_key(val2) | |
| if ascending: | |
| return (key1 > key2) - (key1 < key2) | |
| else: | |
| return (key2 > key1) - (key2 < key1) | |
| @staticmethod | |
| def get_bom_pos_icon(state): | |
| icons = [wx.ArtProvider.GetBitmap(wx.ART_INFORMATION, wx.ART_OTHER, wx.Size(16, 16)), | |
| wx.ArtProvider.GetBitmap(wx.ART_WARNING, wx.ART_OTHER, wx.Size(16, 16))] | |
| return icons[int(state)] | |
| def AddEntry(self, item): | |
| """Method to add a new entry to the data model.""" | |
| item[BOM_COL] = self.get_bom_pos_icon(item[BOM_COL]) | |
| item[POS_COL] = self.get_bom_pos_icon(item[POS_COL]) | |
| self.data.append(item) | |
| self.ItemAdded(dv.NullDataViewItem, self.ObjectToItem(item)) | |
| def UpdateEntry(self, index, data): | |
| """Method to update an entry in the data model.""" | |
| if index < 0 or index >= len(self.data): | |
| return | |
| item = self.data[index] | |
| # ToDo: Figure out why item = data does not work | |
| for i in range(0,len(data)): | |
| if i in [BOM_COL, POS_COL]: | |
| item[i] = self.get_bom_pos_icon(data[i]) | |
| else: | |
| item[i] = data[i] | |
| self.ItemChanged(self.ObjectToItem(item)) | |
| def RemoveEntry(self, item): | |
| """Method to remove an entry from the data model.""" | |
| obj = self.ItemToObject(item) | |
| if obj in self.data: | |
| self.data.remove(obj) | |
| self.ItemDeleted(dv.NullDataViewItem, item) |
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