Extend selection in ttk.Treeview
Vasilis Vlachoudis <[email protected]> Tue, 5 Jan 2021 11:06:24 +0000
| Newsgroups | gmane.comp.python.tkinter |
|---|---|
| Message-ID | <[email protected]> |
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Hi all,
I am currently replacing some Listbox() with ttk.Treeview() however the Tre=
eview doesn't have the
"Shift-Up/Down" and "B1-Motion" capabilities to select with the keyboard mu=
ltiple items and with the mouse by click and drag.
Looking the treeview.tcl I've managed to add a binding for the B1-Motion wh=
ich seems to work,
however I failed to find a way to correctly replicate the Listbox behavior =
with the Shift-Up/Down
This is one of my failed tries
Any suggestion?
class MyTreeview(ttk.TreeView):
def __init__(self, master, *kw, **args):
super().__init__(master, *kw, **args)
self.bind("<B1-Motion>", self.b1motion)
self.bind("<Shift-Key-Up>", self.selectUp)
self.bind("<Shift-Key-Down>", self.selectDown)
def b1motion(self, event):
if self.identify_row(event.y) =3D=3D self.focus(): return
self.tk.call("ttk::treeview::Select", self._w, event.x, event.y, "extend")
def selectDown(self, event):
self.tk.call("ttk::treeview::Keynav", self._w, "down")
item =3D self.focus()
self.tk.call("ttk::treeview::SelectOp", self._w, item, "extend")
return "break"
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<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Diso-8859-=
1">
<style type=3D"text/css" id=3D"owaParaStyle"></style>
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<body fpstyle=3D"1" ocsi=3D"0">
<div style=3D"direction: ltr;font-family: Tahoma;color: #000000;font-size: =
10pt;">Hi all,
<div><br>
</div>
<div>I am currently replacing some Listbox() with ttk.Treeview() however th=
e Treeview doesn't have the</div>
<div>"Shift-Up/Down" and "B1-Motion" capabilities to se=
lect with the keyboard multiple items and with the mouse by click and drag.=
</div>
<div><br>
</div>
<div>Looking the treeview.tcl I've managed to add a binding for the B1-Moti=
on which seems to work,</div>
<div>however I failed to find a way to correctly replicate the Listbox beha=
vior with the Shift-Up/Down</div>
<div>This is one of my failed tries</div>
<div><br>
</div>
<div>Any suggestion?</div>
<div><br>
</div>
<div>class MyTreeview(ttk.TreeView):</div>
<div><span style=3D"white-space:pre"></span>def __init__(self, master, *kw,=
**args):</div>
<div>
<div><span style=3D"font-size: 13.3333px;"><span style=3D"white-space:pre">=
</span>super().__init__(master, *kw, **args)</span></div>
<div><span style=3D"white-space: pre;"></span>self.bind("<B1-Motion=
>",<span style=3D"white-space: pre;">
</span>self.b1motion)</div>
<div>
<div><span style=3D"white-space: pre;"></span>self.bind("<Shift-Key=
-Up>",<span style=3D"white-space: pre;">
</span>self.selectUp)</div>
<div><span style=3D"font-size: 13.3333px;"><span style=3D"white-space:pre">=
</span>self.bind("<Shift-Key-Down>",<span style=3D"white-sp=
ace:pre">
</span>self.selectDown)</span></div>
</div>
<div><br>
</div>
</div>
<div><span style=3D"white-space:pre"></span>def b1motion(self, event):</div=
>
<div>
<div><span style=3D"font-size: 13.3333px;"><span style=3D"white-space:pre">=
</span>if self.identify_row(event.y) =3D=3D self.focus(): return</span></di=
v>
<div><span style=3D"white-space: pre;"></span>self.tk.call("ttk::treev=
iew::Select", self._w, event.x, event.y, "extend")</div>
</div>
<div><br>
</div>
<div>
<div><span style=3D"white-space: pre;"></span>def selectDown(self, event):<=
/div>
<div><span style=3D"white-space: pre;"></span>self.tk.call("ttk::treev=
iew::Keynav", self._w, "down")</div>
<div><span style=3D"font-size: 13.3333px;"><span style=3D"white-space:pre">=
</span>item =3D self.focus()</span></div>
<div><span style=3D"white-space: pre;"></span>self.tk.call("ttk::treev=
iew::SelectOp", self._w, item, "extend")</div>
<div><span style=3D"font-size: 13.3333px;"><span style=3D"white-space:pre">=
</span>return "break"</span></div>
</div>
</div>
</body>
</html>
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