Panda3D Manual

DirectWaitBars are similar to status bars; use them to indicate a slow process gradually completing (e.g. a loading screen). It has various options for both the background bar and the loading bar that fills up as the process progresses. You can call finish() to automatically fill up the bar, or use:

myWaitBar['value'] = number

to set the value (it ranges from 0 to 100 by default).

Keyword	Definition	Value
value	Initial value of the loading bar (from 0 to 100)	Number
range	The maximum value of the loading bar	Number
barColor	The color of the loading bar	(R,G,B,A)
barRelief	The relief appearance of the loading bar	SUNKEN or RAISED
barBorderWidth	If barRelief is SUNKEN, RAISED, GROOVE, or RIDGE, changes the size of the loading bar's bevel	(Width,Height)
relief	The relief appearance of the background bar	SUNKEN or RAISED

Example

import direct.directbase.DirectStart
from direct.gui.OnscreenText import OnscreenText 
from direct.gui.DirectGui import *

#add some text
bk_text = "This is my Demo"
textObject = OnscreenText(text = bk_text, pos = (0.95,-0.95), 
scale = 0.07,fg=(1,0.5,0.5,1),align=TextNode.ACenter,mayChange=1)

#callback function to set  text 
def incBar(arg):
	bar['value'] +=	arg
	text = "Progress is:"+str(bar['value'])+'%'
	textObject.setText(text)

#create a frame
frame = DirectFrame(text="main",scale=0.001)
#add button
bar = DirectWaitBar(text = "" , value=50,pos=(0,.4,.4))

#create 4 buttons
button_1 = DirectButton(text="+1",scale=0.05,pos=(-.3,.6,0), command=incBar,extraArgs = [1])
button_10 = DirectButton(text="+10",scale=0.05,pos=(0,.6,0), command=incBar,extraArgs = [10])
button_m1 = DirectButton(text="-1",scale=0.05,pos=(0.3,.6,0), command=incBar,extraArgs = [-1])
button_m10 = DirectButton(text="-10",scale=0.05,pos=(0.6,.6,0), command=incBar,extraArgs = [-10])

#run the tutorial
run()

<<prev

top

next>>