dabo Commit
Revision 6029
Date: 2010-09-22 17:36:54 -0700 (Wed, 22 Sep 2010)
Author: Ed
Trac: http://trac.dabodev.com/changeset/6029
Changed:
U trunk/dabo/ui/uiwx/dListControl.py
Log:
First attempt at abstracting out the columns in dListControl. You can now
change column captions without losing your data and other column settings.
Diff:
Modified: trunk/dabo/ui/uiwx/dListControl.py
===================================================================
--- trunk/dabo/ui/uiwx/dListControl.py 2010-09-23 00:33:23 UTC (rev 6028)
+++ trunk/dabo/ui/uiwx/dListControl.py 2010-09-23 00:36:54 UTC (rev 6029)
@@ -11,6 +11,40 @@
from dabo.ui import makeDynamicProperty
+class _ListColumnAccessor(object):
+ """ These aren't the actual columns that appear in the list control;
rather,
+ they provide a way to interact with the underlying list items in a more
+ straightforward manner.
+ """
+ def __init__(self, listcontrol, *args, **kwargs):
+ self.listcontrol = listcontrol
+ super(_ListColumnAccessor, self).__init__(*args, **kwargs)
+
+
+ def __dabo_getitem__(self, val):
+ ret = self.listcontrol.GetColumn(val)
+ ret._dabo_listcontrol = self.listcontrol
+ ret._dabo_column_number = val
+ def _getCaption(self):
+ return
self._dabo_listcontrol.getCaptionForColumn(self._dabo_column_number)
+ def _setCaption(self, val):
+
self._dabo_listcontrol.setCaptionForColumn(self._dabo_column_number, val)
+ Caption = property(_getCaption, _setCaption, None,
+ _("Caption for the column. (str)"))
+ setattr(ret.__class__, "Caption", Caption)
+ return ret
+
+
+ def __getitem__(self, val):
+ return self.__dabo_getitem__(val)
+
+
+ def __getslice__(self, start, end):
+ return [self.__dabo_getitem__(col)
+ for col in xrange(start, end)]
+
+
+
class dListControl(dcm.dControlItemMixin,
ListMixin.ListCtrlAutoWidthMixin, wx.ListCtrl):
"""Creates a list control, which is a flexible, virtual list box.
@@ -52,6 +86,7 @@
self.SortFunction = self._listControlSort
# Set the default sorting column to 0 after everything is
instantiated
dabo.ui.setAfter(self, "SortColumn", 0)
+ self._columnAccessor = _ListColumnAccessor(self)
def _initEvents(self):
@@ -95,15 +130,49 @@
self.DeleteColumn(pos)
+ def _getCurrentData(self):
+ ds = []
+ for row in xrange(self.RowCount):
+ rr = []
+ for col in xrange(self.ColumnCount):
+ rr.append(self.GetItem(row, col).GetText())
+ ds.append(rr)
+ return ds
+
+
def setColumns(self, colList):
- """ Accepts a list/tuple of column headings, removes any
- existing columns, and creates new columns, one for each
- element in the list"""
+ """ Accepts a list/tuple of column headings, removes any
existing columns,
+ and creates new columns, one for each element in the list. The
current
+ display settings and data is preserved as much as possible:
setting more
+ columns will result in empty columns, and setting fewer columns
will
+ truncate the data."""
+ self.lockDisplay()
+ ds = self._getCurrentData()
+ wds = [self.getColumnWidth(col) for col in
xrange(self.ColumnCount)]
+ expandCol = self.ExpandColumn
+ self.clear()
self.DeleteAllColumns()
for col in colList:
self.addColumn(col)
+ self.appendRows(ds)
+ dummy = [self.setColumnWidth(col, wd) for col, wd in
enumerate(wds)]
+ self.ExpandColumn = expandCol
+ self.unlockDisplay()
+ def getCaptionForColumn(self, colnum):
+ """Convenience method for getting the caption for a given
column number."""
+ captions = [self.GetColumn(ii).GetText() for ii in
xrange(self.ColumnCount)]
+ return captions[colnum]
+
+
+ def setCaptionForColumn(self, colnum, val):
+ """Convenience method for setting the caption for a given
column number."""
+ captions = [self.GetColumn(ii).GetText() for ii in
xrange(self.ColumnCount)]
+ captions[colnum] = val
+ self.setColumns(captions)
+
+
def select(self, row):
"""Selects the specified row. In a MultipleSelect control, any
other selected rows remain selected.
@@ -511,6 +580,10 @@
self._properties["ColumnCount"] = val
+ def _getColumns(self):
+ return self._columnAccessor
+
+
def _getExpandColumn(self):
return self._expandColumn
@@ -695,6 +768,9 @@
ColumnCount = property(_getColumnCount, _setColumnCount, None,
_("Number of columns in the control (int)"))
+ Columns = property(_getColumns, None, None,
+ _("""Reference to the columns in the control.
(read-only) (list)"""))
+
Count = property(_getRowCount, None, None,
_("Number of rows in the control (read-only). Alias for
RowCount (int)"))
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