CustomTreeCtrl feature request and patch

[Frank Niessink]

Hi Andrea, Robin,

CustomTreeCtrl is great. I'm using the TR_AUTO_CHECK_CHILD style so that =

subcategories are checked automatically when a parent category is =

checked. What would also be handy is an additional style that (un)checks =

a parent when all children are (un)checked, i.e. TR_AUTO_CHECK_PARENT. =

The patch attached is my proposal for that additional style.

Please let me know what you think.

Cheers, Frank
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Index: customtreectrl.py
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RCS file: /pack/cvsroots/wxwidgets/wxWidgets/wxPython/wx/lib/customtreectrl=
.py,v
retrieving revision 1.5
diff -r1.5 customtreectrl.py
98c98
< Plus it has 2 more styles to handle checkbox-type items:
---
> Plus it has 3 more styles to handle checkbox-type items:
99a100
>   - TR_AUTO_CHECK_PARENT : automatically checks/unchecks the item parent;
193,194c194,196
< TR_AUTO_CHECK_CHILD =3D 0x4000                                   # only m=
eaningful for checkboxes
< TR_AUTO_TOGGLE_CHILD =3D 0x8000                                  # only m=
eaningful for checkboxes
---
> TR_AUTO_CHECK_CHILD =3D 0x04000                                   # only =
meaningful for checkboxes
> TR_AUTO_TOGGLE_CHILD =3D 0x08000                                  # only =
meaningful for checkboxes
> TR_AUTO_CHECK_PARENT =3D 0x10000                                   # only=
 meaningful for checkboxes
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>             TR_AUTO_CHECK_PARENT                    # only meaningful for=
 checkboxes
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>         if self._windowStyle & TR_AUTO_CHECK_PARENT:
>             ischeck =3D self.IsItemChecked(item)
>             self.AutoCheckParent(item, ischeck)
2202a2209,2230
> =

> =

>     def AutoCheckParent(self, item, checked):
>         """Traverses up the tree and checks/unchecks parent items.
>         Meaningful only for check items."""
> =

>         if not item:
>             raise "\nERROR: Invalid Tree Item. "
> =

>         parent =3D item.GetParent()
>         if not parent or parent.GetType() !=3D 1:
>             return
> =

>         (child, cookie) =3D self.GetFirstChild(parent)
>         while child:
>             if child.GetType() =3D=3D 1 and child.IsEnabled():
>                 if checked !=3D child.IsChecked():
>                     return
>             (child, cookie) =3D self.GetNextChild(parent, cookie)
> =

>         self.CheckItem2(parent, checked, torefresh=3DTrue)
>         self.AutoCheckParent(parent, checked)