mirror of
https://github.com/fatiando/moulder.git
synced 2025-12-20 18:01:13 +08:00
34 lines
1.0 KiB
Python
34 lines
1.0 KiB
Python
from __future__ import division
|
|
from future.builtins import super
|
|
|
|
from PyQt5.QtWidgets import QSlider
|
|
|
|
|
|
class QDoubleSlider(QSlider):
|
|
|
|
def __init__(self, parent, min_value, max_value, step, init_value=None):
|
|
super().__init__(parent)
|
|
self.min_value = min_value
|
|
self.max_value = max_value
|
|
self.step = step
|
|
self.init_value = init_value
|
|
self.nvalues = int((max_value - min_value)/step)
|
|
|
|
true_max_value = min_value + step*self.nvalues
|
|
if true_max_value != max_value:
|
|
self.max_value = true_max_value
|
|
|
|
self.setMinimum(self.float_2_int(min_value))
|
|
self.setMaximum(self.float_2_int(max_value))
|
|
if init_value is not None:
|
|
self.setValue(self.float_2_int(init_value))
|
|
|
|
def int_2_float(self, value):
|
|
return (self.max_value - self.min_value)*value/self.nvalues + \
|
|
self.min_value
|
|
|
|
def float_2_int(self, value):
|
|
return int(
|
|
self.nvalues*(value - self.min_value) /
|
|
(self.max_value - self.min_value))
|