Call objects created within definitions

[lilio]

Hi,

I want to create buttons within a definition. Something like that:

def createButton(self, position, pictureOff, pictureOn, name, szene):
		self.Position = position
		self.PictureOff = pictureOff
		self.PictureOn = pictureOn
		self.Name = name
		self.Szene = szene
		
		name = viz.add(viz.BUTTON, scene=szene)
		name.translate(position[0],position[1])
		name.uppicture(pictureOff)
		name.downpicture(pictureOn)
		name.setScale(12,3.6)

And afterthat I call the def like this way:

createButton([0.25,0.8],'button01Off.jpg', 'button01On.jpg', 'button1', 2)

So I want to set the button-name manually. This works fine.

But now I want to define onbuttondown events, but this does not work!

If I write:

def onButton(obj,state):
 if obj == viz.VizButtonLabel(5):
   viz.scene( 2 )

then it works. But this isn't a very good solution. Because if I create more and more objects, I had to change the number of the buttonlabel.

So I want to write:

def onButton(obj,state):
 if obj == button1:
   viz.scene( 2 )

But this does not work! I get the error message: global name 'button1' is not defined.


I don't know how to solve this problem.

I only want to create a lot of buttons and want to set the name of the button over a parameter. And afterthat I want to check the onbuttondown event via the buttonname.

Thanks for all your answers...

[farshizzo]

Your createButton function should return the button object and you should save the object in a global variable with the name you want. For example:

def createButton(self, position, pictureOff, pictureOn, name, szene):
	self.Position = position
	self.PictureOff = pictureOff
	self.PictureOn = pictureOn
	self.Name = name
	self.Szene = szene
		
	name = viz.add(viz.BUTTON, scene=szene)
	name.translate(position[0],position[1])
	name.uppicture(pictureOff)
	name.downpicture(pictureOn)
	name.setScale(12,3.6)
	return name

button1 = createButton([0.25,0.8],'button01Off.jpg', 'button01On.jpg', 'button1', 2)

[lilio]

Hi,

thanks for your answer. But this does not work.

For example:

I've got this class:

import viz

class Button(object):
	
	def createButton(self, position, name):
		name = viz.add(viz.BUTTON)
		name.translate(position[0], position[1])
		return name

and this start.py

import viz
import button

viz.go()


button = button.Button()

button.createButton([0.2,0.5], 'testbutton')

def onButton(obj,state):
	if obj == button.testbutton:
		print 'test'

viz.callback(viz.BUTTON_EVENT,onButton)

So I want to create a button with the name testbutton. And afterthat I want to check if the testbutton is clicked.

In my example, the button got the name 'testbutton'.

But then, I've got the error message: 'Button' object has no attribute 'testbutton'


What is wrong??

[farshizzo]

You need to assign the return value of the createButton function to a variable:

import viz
import button

viz.go()


btn = button.Button()

testbutton = btn.createButton([0.2,0.5], 'testbutton')

def onButton(obj,state):
	if obj == testbutton:
		print 'test'

viz.callback(viz.BUTTON_EVENT,onButton)

[lilio]

Yes it works!

Thank you very much....