2 from Model import Model
3 from utils import toUnicodeWithWarning, Logger
5 class TableModel(Model):
6 def __init__(self, controller):
7 Model.__init__(self, controller)
8 self._columnTitles = {}
15 def __checkAndFormatData(self, data):
16 if isinstance(data, np.ndarray):
17 if len(data.shape) == 1:
18 data = np.resize(data, (data.shape[0], 1))
19 elif len(data.shape) == 2:
22 raise ValueError("Invalid shape! Must be a vector or a rank-2 tensor (i.e. a matrix)!")
23 elif isinstance(data, list):
24 data = np.array((len(data), 1), dtype=np.float64)
28 def setData(self, data):
29 data = self.__checkAndFormatData(data)
31 self.notifyChange("DataChange")
33 def extend(self, data):
34 data = self.__checkAndFormatData(data)
35 if data.shape[1] != self._data.shape[1]:
36 raise ValueError("Invalid shape! Must have the same number of columns than already existing data!")
37 self._data = np.vstack([self._data, data])
38 self.notifyChange("DataChange")
42 # Void data but keeping same number of cols:
43 self._data = np.zeros((0, sh[1]))
44 self.notifyChange("DataChange")
47 if self._data is not None:
48 return self._data.shape
52 def setTitle(self, ti):
53 ti = toUnicodeWithWarning(ti, "TableModel::setTitle()")
55 self.notifyChange("TitleChange")
60 def addColumn(self, lst):
64 raise ValueError("Invalid number of rows in added column! (is %d, should be %d)" % (len(lst), sh[0]))
67 self._data = np.zeros((sh[0],sh[1]+1))
68 self._data[:,:-1] = tmp
72 self._data = np.zeros((len(lst), 1), dtype=np.float64)
74 self._data[:, idx] = lst
75 self.notifyChange("DataChange")
77 def setColumnTitle(self, index, txt):
78 self._columnTitles[index] = txt
79 self.notifyChange("ColumnTitleChange")
81 def getColumnTitle(self, index):
82 return self._columnTitles.get(index, "")
84 def removeValue(self, nrow, ncol):
86 if nrow >= sh[0] or ncol >= sh[1]:
87 raise ValueError("Specified row and column (%d, %d) invalid with current data size (%d, %d)" % (nrow, ncol, sh[0], sh[1]))
88 self._data[nrow, ncol] = np.NaN
89 self.notifyChange("DataChange")
92 return self._data.__str__()