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# credit: mikaelho / pythonista – gestures
# credit: tdamdouni / Pythonista
# credit: Pythonista / slider / SliderWithLabel_danrcook.py
class AugmentedSliderWithLabel(ui.View):
'''wrapper for ui.Slider to also show a label. You can edit the value of the slider directly in the label since it is a textfield. Can take the following keyword arguments:
- for the slider:
>> value: default value when presented (should be a number that is less than max_val and greater than 0). The default is 50
>> max_val: the default for a usual slider is 1.0. SliderWithLabel will conventiently multiply the max_val for the label display and for returning it's value attribute. The default is 100
>> tint_color for the color of the slider bar (up to current point). Default is 0.7 (gray)
- values are rounded in the label and for SliderWithLabel.value
- SliderWithLabel needs some vertical space: has a height of 60
- use SliderWithLabel.value for return a value between 0 and SliderWithLabel.max_val
khoitsma
- AugmentedSliderWithLabel augmented class
- added attributes:
min_val
frame
moved this inside of the class definition
secondaction
the original action for slider was to update self.label
I added an additional action to allow
an "outside of class" update
name
I added a name to provide a means for easy referencing
s_type
I added a slider type; can be:
int (as in the original class def)
float
boolean
round
I added a rounding value
0.5 rounds to nearest 0.5
5 rounds to nearest 5
group
I added a group to allow different functions
for different groups
- sample call
g = AugmentedSliderWithLabel(
value = str(float(myview['rot'].text)),
min_val = 0,
max_val = 180,
frame = (144,329,110,60),
second_action = setvals,
name = 'rot',
s_type = 'round',
round = 5,
group = 'slider')
'''
def __init__(self, **kwargs):
self.slider = ui.Slider()
#defaults
self.min_val = 0
self.max_val = 10
self.s_type = kwargs['s_type'] if 's_type' in kwargs else 'int'
self.name = kwargs['name'] if 'name' in kwargs else 'unnamed'
self.group = kwargs['group'] if 'group' in kwargs else 'ungrouped'
self.second_action = kwargs['second_action'] if 'second_action' in kwargs else None
self.round = kwargs['round'] if 'round' in kwargs else 1
self.frame = kwargs['frame'] if 'frame' in kwargs else (0,0,100,60)
self.max_val = kwargs['max_val'] if 'max_val' in kwargs else self.max_val
self.min_val = kwargs['min_val'] if 'min_val' in kwargs else self.min_val
self.slider.value = (float(self.bool_to_str(kwargs['value']))-self.min_val)/(self.max_val-self.min_val) if 'value' in kwargs else 0.5*(self.max_val-self.min_val)
self.value = round(self.slider.value*(self.max_val-self.min_val)+self.min_val) #for convenience in getting the value attribute
self.slider.action = self.update_label_and_value
self.slider.tint_color = kwargs['tint_color'] if 'tint_color' in kwargs else 0.7
self.label = ui.TextField()
self.label.action = self.update_value
self.label.bordered = True
self.label.alignment = ui.ALIGN_CENTER
self.label.font = ('<system>',11)
self.label.text_color = 0.7
self.label.text = str(self.value)
self.add_subview(self.slider)
self.add_subview(self.label)
self.border_color = 0.7
def update_value(self, sender):
try: #try/except in case wrong text is entered...
self.slider.value = (float(self.label.text)-self.min_val)/(self.max_val- self.min_val)
self.update_label_and_value(self)
except:
pass
def update_label_and_value(self, sender):
self.label.x = (self.slider.width - 34) * self.slider.value - (self.label.width/2) + 17
self.value = float(self.slider.value*(self.max_val-self.min_val)+self.min_val)
try:
if self.s_type == 'boolean':
if self.value <= 0.5*(self.max_val - self.min_val):
self.label.text = 'False'
else:
self.label.text = 'True'
elif self.s_type == 'integer':
self.label.text = str(self.myround(self.value, 1))
elif self.s_type == 'round':
self.label.text = str(self.myround(self.value, self.round))
else:
self.label.text = str(self.value)
except:
self.label.text = str(self.value)
if self.label.x + self.label.width > self.width:
self.label.x = self.width - self.label.width
if self.label.x < 0:
self.label.x = 0
if self.second_action:
self.second_action(self.name, self.label.text)
def draw(self):
self.height = 60
self.slider.frame = (0,self.height/2-7,self.width, 34)
self.label.width, self.label.height = 46, 20
self.label.y = self.slider.y - (self.label.height + 2)
self.label.x = (self.slider.width - 34) * self.slider.value - (self.label.width/2) + 17
def myround(self, x, base = 5):
return base * round(float(x)/base)
def bool_to_str(self, x):
if x.upper() == 'TRUE':
return '1'
elif x.upper() == 'FALSE':
return '0'
else:
return x
@khoitsma

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commented Dec 3, 2018

Example Usage

img_3593

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