Skip to content

add trace / update on Sliders on external variable change #12

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
sayofan wants to merge 2 commits into
base: main
Choose a base branch
from
Open

add trace / update on Sliders on external variable change #12

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
a65791c
add slider update on external variable change
sayofan Jan 9, 2026
b3a5e5b
split var0 and 1 in trace_vars_write to fix bug
sayofan Jan 11, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
22 changes: 22 additions & 0 deletions RangeSlider/RangeSlider.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,9 @@ def __init__(self, master, variables, Width = 400, Height = 80, min_val = 0, max
self.canv_W = self.W
self.suffix=suffix
self.variables=variables
if variables:
variables[0].trace_add("write", self._trace_vars_write0)
variables[1].trace_add("write", self._trace_vars_write1)
self.step_marker = step_marker
if self.step_marker:
assert step_size > 0, "[step_size] must be provided if [step_marker] set to True."
Expand Down Expand Up @@ -348,6 +351,14 @@ def __checkSelection(self, x, y):
if bbox[0] < x and bbox[2] > x and bbox[1] < y and bbox[3] > y:
return [True, idx]
return [False, None]

def _trace_vars_write0(self, *args):
firstVal = self.variables[0].get()
self.__moveBar(0, (firstVal - self.min_val)/(self.max_val - self.min_val))

def _trace_vars_write1(self, *args):
secondVal = self.variables[1].get()
self.__moveBar(1, (secondVal - self.min_val)/(self.max_val - self.min_val))


class RangeSliderV(Frame):
Expand Down Expand Up @@ -445,6 +456,9 @@ def __init__(self, master, variables, Width = 80, Height = 400, min_val = 0, max
self.canv_W = self.W
self.suffix=suffix
self.variables=variables
if variables:
variables[0].trace_add("write", self._trace_vars_write0)
variables[1].trace_add("write", self._trace_vars_write1)
self.step_size= step_size / (self.max_val-self.min_val)
if not show_value:
self.slider_x = self.canv_W/2 # y pos of the slider
Expand Down Expand Up @@ -685,3 +699,11 @@ def __checkSelection(self, x, y):
if bbox[0] < x and bbox[2] > x and bbox[1] < y and bbox[3] > y:
return [True, idx]
return [False, None]

def _trace_vars_write0(self, *args):
firstVal = self.variables[0].get()
self.__moveBar(0, (firstVal - self.min_val)/(self.max_val - self.min_val))

def _trace_vars_write1(self, *args):
secondVal = self.variables[1].get()
self.__moveBar(1, (secondVal - self.min_val)/(self.max_val - self.min_val))