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Addition of scroll_to_index parameter to Listbox.Update method

This commit is contained in:
MikeTheWatchGuy 2019-06-19 09:52:50 -04:00
parent 9cce12e8c2
commit b35c55726d
1 changed files with 6 additions and 4 deletions
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10
PySimpleGUI.py
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@ -973,12 +973,13 @@ class Listbox(Element):
super().__init__(ELEM_TYPE_INPUT_LISTBOX, size=size, auto_size_text=auto_size_text, font=font,
background_color=bg, text_color=fg, key=key, pad=pad, tooltip=tooltip, visible=visible)
def Update(self, values=None, disabled=None, set_to_index=None, visible=None):
def Update(self, values=None, disabled=None, set_to_index=None, scroll_to_index=None, visible=None):
"""
:param values: (Default value = None)
:param disabled: disable or enable state of the element (Default value = None)
:param set_to_index: (Default value = None)
:param set_to_index: highlights the item at this index as if user clicked (Default value = None)
:param scroll_to_index: scroll the listbox so that this index is the first shown (Default value = None)
:param visible: change visibility of element (Default value = None)
"""
@ -1005,6 +1006,8 @@ class Listbox(Element):
elif visible is True:
self.TKListbox.pack()
self.vsb.pack()
if scroll_to_index is not None and len(self.Values):
self.TKListbox.yview_moveto(scroll_to_index/len(self.Values))
def SetValue(self, values):
"""
@ -10482,8 +10485,7 @@ def main():
graph_elem.DrawCircle((200, 200), 50, 'blue')
i = 0
while True: # Event Loop
# TimerStart()
event, values = window.Read(timeout=0)
event, values = window.Read(timeout=1)
if event != TIMEOUT_KEY:
print(event, values)
if event is None or event == 'Exit':