amr/spirographs
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Wrapped entry box changed callback in try/except to handle ValueError

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This commit is contained in:
A.M. Rowsell 2021-09-19 15:53:11 -04:00
commit 853da5c405
Signed by: amr
GPG key ID: 0B6E2D8375CF79A9
1 changed files with 16 additions and 3 deletions
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19
spirographs.py
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@ -1,5 +1,6 @@
# -*- coding: utf-8 -*-
# Copyright 2021 Alexander Rowsell. Licenced under MPLv2.0
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
@ -69,7 +70,11 @@ class spirographs:
self.updatePlot()
def bigRadiusEntry_changed_cb(self, widget):
self.bigRadius = float(widget.get_text())
try:
self.bigRadius = float(widget.get_text())
except ValueError:
print("Couldn't get a float for R, ignoring...\n")
return
self.bigRadiusAdjustment.set_value(self.bigRadius)
def smallRadiusAdjustment_value_changed_cb(self, widget):
@ -79,7 +84,11 @@ class spirographs:
self.updatePlot()
def smallRadiusEntry_changed_cb(self, widget):
self.smallRadius = float(widget.get_text())
try:
self.smallRadius = float(widget.get_text())
except ValueError:
print("Couldn't get a float for r, ignoring...\n")
return
self.smallRadiusAdjustment.set_value(self.smallRadius)
def distanceAdjustment_value_changed_cb(self, widget):
@ -89,7 +98,11 @@ class spirographs:
self.updatePlot()
def distanceEntry_changed_cb(self, widget):
self.distance = float(widget.get_text())
try:
self.distance = float(widget.get_text())
except ValueError:
print("Couldn't get a float for d, ignoring...\n")
return
self.distanceAdjustment.set_value(self.distance)
def recalcPoints(self):