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GUI.pyw: allow binding tooltips to tagged elements of widgets

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Elvish_Hunter 2015-09-10 19:59:41 +02:00
parent 870053c0ec
commit ef559d0ffd
1 changed files with 11 additions and 3 deletions
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14
data/tools/GUI.pyw
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@ -138,7 +138,7 @@ def attach_select_all(widget,function):
widget.bind("<Control-KeyRelease-a>", function)
class Tooltip(Toplevel):
def __init__(self,widget,text):
def __init__(self,widget,text,tag=None):
"""A tooltip, or balloon. Displays the specified help text when the
mouse pointer stays on the widget for more than 500 ms."""
# the master attribute retrieves the window where our "parent" widget is
@ -157,8 +157,16 @@ mouse pointer stays on the widget for more than 500 ms."""
font=font.nametofont("TkTooltipFont"))
self.label.pack()
self.overrideredirect(True)
self.widget.bind("<Enter>",self.preshow)
self.widget.bind("<Leave>",self.hide)
# allow binding the tooltips to tagged elements of a widget
# only Text, Canvas and Treeview support tags
# and as such, they have a tag_bind method
# if the widget doesn't support tags, bind directly to it
if tag and hasattr(widget, "tag_bind") and callable(widget.tag_bind):
self.widget.tag_bind(tag,"<Enter>",self.preshow)
self.widget.tag_bind(tag,"<Leave>",self.hide)
else:
self.widget.bind("<Enter>",self.preshow)
self.widget.bind("<Leave>",self.hide)
self.bind_all("<Button>",self.hide)
self.withdraw()
def preshow(self,event=None):