Use a DirectSlider to make a slider, a widget that allows the user to select a value between a bounded interval. DirectSlider is available beginning in Panda3D 1.1.
A DirectSlider consists of a long bar, by default horizontal, along with a "thumb", which is a special button that the user may move left or right along the bar. The normal DirectGui parameters such as frameSize, geom, and relief control the look of the bar; to control the look of the thumb, prefix each of these parameters with the prefix "thumb_", e.g. thumb_frameSize
.
If you want to get (or modify) the current value of the slider (by default, the range is between 0 and 1), use mySlider['value']
.
Keyword
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Definition
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Value
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value
|
Initial value of the slider
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Default is 0
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range
|
The (min, max) range of the slider
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Default is (0, 1)
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pageSize
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The amount to jump the slider when the user clicks left or right of the thumb
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Default is 0.1
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orientation
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The orientation of the slider
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HORIZONTAL or VERTICAL
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command
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Function called when the value of the slider changes (takes no arguments)
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Function
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extraArgs
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Extra arguments to the function specified in command
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[Extra Arguments]
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thumb_geom, thumb_relief, thumb_text, thumb_frameSize, etc.
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Parameters to control the look of the thumb
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Any parameters appropriate to DirectButton
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Example
import direct.directbase.DirectStart
from direct.gui.DirectGui import *
def showValue():
print slider['value']
slider = DirectSlider(range=(0,100), value=50, pageSize=3, command=showValue)
run()
"range" sets values between 0 and 100
"value" sets initial value to 50
"pageSize" sets the step between mouseclicks to 3 (approximately)
"command" calls the showValue-function implemented above