How to use var()

Hi,

I am trying to use var() to get some string input. I have some commands

var("Name", TEXT)
var("Context", TEXT)

and I use the variable Name in my code to create a new node when a button is pressed, by calling

g.add_node(Name)

But this does not work: if I press enter after entering a name, the whole program is executed again (deleting any changes I made previously) and the name is still "hello" (the default value). If I don't press enter, the name of the new node is also "hello".

I don't really understand very well how this var() thing works, since normally variables are not updated on the fly, but only when you actively collect the entered value and store it into a variable. But the var thing is supposed to be updated live, right?

Is this a bug or am I doing something wrong?

Thanks for your help,
Pieter

My guess is you're trying to do an animation? In that case this is definitely a bug, since the variables panel doesn't seem to work very well (if at all) with animated scripts. In case of a static script, however, it may be helpful to see more source code here.

test (I didn't see my previous post appearing)

Sorry about that test thing; apparently something went wrong.

Here's my code (I tried to remove as much irrelevant stuff as possible while still showing the same effect):

#==========================================================================================
graph = ximport("graph")
 
print "Starting..."
 
g = graph.create()
#==========================================================================================
# CONSTANTS
global DEFAULT_STYLE; DEFAULT_STYLE = "default"
#==========================================================================================
# VAR INTERFACE
var("Name", TEXT)
var("Add_node", BUTTON)
var("Screen_size", NUMBER, 500, 0, 1000)
 
def Add_node():
    print Name
    g.add_node(Name)
    update_all()
    mode = "default"
 
#==========================================================================================
# Define initial nodes and edges
g.add_node("jos")
g.add_node("jef")
g.add_edge("jef", "jos")
g.add_edge("jos", "louis")
g.add_edge("jef", "louis")
g.add_edge("jef", "francois")
g.add_edge("francois", "emile")
g.add_edge("francois", "jean-pierre")
g.add_node("franske")
#==========================================================================================
# METHODS
 
# Draw the graph in its current state
def draw(highlight=None):    
    g.update()
    
    g.draw(highlight=highlight, weighted=True)
    
           
# Update the graph.  The path through the nodes given in highlight is highlighted.
def update_all(highlight = None):
    draw(highlight = highlight)
 
#==========================================================================================    
 
size(Screen_size, Screen_size)
 
speed(30)
 
update_all()
#==========================================================================================

PS The global DEFAULT_STYLE and the line mode = "default" are not important, I just forgot to remove them.

Yes sadly the var panel doesn't work like it should when you're using animation. I don't know if or when it will be fixed.