WorldViz User Forum - questions on how to create a form

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questions on how to create a form

can someone teach me how to create a form used to gather infomation entered by a user?

I need to do it in this way. If I pressed a key such as 'p', the animation would be paused. Then the form comes up. After the form is filled in, I press a 'submit' button to pass them to somewhere.

I already tried to use vizinfo and vizmenu. but they can just show a list , not a real form like what we did in the Microsoft Office.

Thanks a lot:confused::confused:

You can try using the undocumented vizdlg module for displaying forms. It allows more advanced form layouts and dialog like components. Here is sample code that creates a custom dialog/form and displays it when the 'p' key is pressed:

Code:

import viz

viz.go()



import vizdlg



class MyForm(vizdlg.Dialog):



        def __init__(self,**kw):

                

                #Initialize base class

                vizdlg.Dialog.__init__(self,**kw)

                

                #Add row of checkboxes

                row = vizdlg.Panel(layout=vizdlg.LAYOUT_HORZ_BOTTOM,border=False,background=False,margin=0)

                row.addItem(viz.addText('Checkboxes'))

                self.check1 = row.addItem(viz.addCheckbox())

                self.check2 = row.addItem(viz.addCheckbox())

                self.check3 = row.addItem(viz.addCheckbox())

                

                #Add row to dialog content section

                self.content.addItem(row)

        

                #Add a subgroup containing slider/textbox

                group = vizdlg.Panel()

                

                #Add row for slider to subgroup

                row = vizdlg.Panel(layout=vizdlg.LAYOUT_HORZ_BOTTOM,border=False,background=False,margin=0)

                row.addItem(viz.addText('Slider'))

                self.slider = row.addItem(viz.addSlider())

                group.addItem(row)

                

                #Add row for textbox to subgroup

                row = vizdlg.Panel(layout=vizdlg.LAYOUT_HORZ_BOTTOM,border=False,background=False,margin=0)

                row.addItem(viz.addText('Textbox'))

                self.textbox = row.addItem(viz.addTextbox())

                group.addItem(row)

                

                #Add group to dialog content section

                self.content.addItem(group)



                #Hide cancel button

                self.cancel.visible(0)

                

                #Rename accept button to 'submit'

                self.accept.message('Submit')

                

import viztask



def FormTask():



        #Create input form

        form = MyForm(title='Form title')



        #Link form to center of screen

        viz.link(viz.MainWindow.CenterCenter,form)



        while True:

                

                #Wait for 'p' key to be pressed

                yield viztask.waitKeyDown('p')

                

                #TODO: Pause simulation

                

                #Display form

                yield form.show()

                

                if form.accepted:

                        #User pressed 'Submit', process data

                        print 'Checkboxes:',form.check1.get(),form.check2.get(),form.check3.get()

                        print 'Slider:',form.slider.get()

                        print 'Textbox:',form.textbox.get()

                

                #TODO: Resume simulation

                

        #Remove form when completely finished with it

        form.remove()

        

viztask.schedule( FormTask() )

Wow.....many thanks. I really appreciate it. This is exactly what I considered. If the vizard could create many complex models, there should be some ways to make tables. However, could you plz tell me how I can get the specific use of this module? I just tried your sample code and part of my purpose already was achieved. As you mentioned , something more advanced is allowed. How can I do it? Since this module is not documented , it's really hard to know its exact usage which is vital to me.

Regards

You will need to be more specific about what you are trying to accomplish. Do you have a screenshot of a form you would like to mimic?

http://sz.photo.store.qq.com/http_im...f03c038e4cb93e

I finally got a place to upload the form in jpg format. This is basically what I wanna do. In addition , as the example provided previously, I also need the animation paused when I presss the "P" key. Is there an easy way to do this?
I really need this "pause" action. Thanks for help.:o:o

What kind of animation are you talking about? (vizact animation, avatar animation, etc..)

Hi, my work is about avatar animation.

You can use the following command to pause an avatar:

Code:

avatar.speed(0)

To resume the avatar animation, use the following code:

Code:

avatar.speed(1)

How would I rewrite this so that the vizdlg is not in a yield statement. I try calling form.show() directly and nothing is displayed. I want to gather some user information then loop on a set of inputs. I would like to use vizdlg for the control I have over the form.

The show method just sets the dialog visible, waits for either the accept or cancel button to be pressed, then hides the dialog. If you do not want to use a task, then you can manually perform these steps. Here is the code for the show command:

Code:

def show(self):

        """Create task that displays dialog"""

        

        #Show dialog

        self.visible(1)

                

        #Yield until accept or cancel button is released

        d = viz.Data()

        yield viztask.waitButtonUp([self.accept,self.cancel],d)

                

        #Save whether the dialog was accepted

        self.accepted = d.button is self.accept

                

        #Hide dialog

        self.visible(0)

When I add the yield statement I lose visibility of the form. I don't manually change the visibility. What gives?

You should not be using yield statements if you are not using tasks. Here is a sample script that displays a dialog without using tasks. Use the spacebar to toggle the visibility of the dialog.

Code:

import viz

import vizdlg

viz.go()



#Create empty dialog

dlg = vizdlg.Dialog(title='Dialog title')



#Link dialog to center of window

viz.link(viz.CenterCenter,dlg)



#Toggle dialog visibility when spacebar is pressed

vizact.onkeydown(' ',dlg.visible,viz.TOGGLE)



viz.add('gallery.ive')

Thanks, This is what I ended up with, but I don't want to display the gallery until I hit accept. I want to wait for the dialog to be done. Say the dialog asks for the user to make a button choice then accept before the gallery is displayed.

import viz
import vizdlg
viz.go()

#Create empty dialog
dlg = vizdlg.Dialog(title='Dialog title')

#Link dialog to center of window
viz.link(viz.CenterCenter,dlg)

#Toggle dialog visibility when spacebar is pressed
vizact.onkeydown(' ',dlg.visible,viz.TOGGLE)
# Look for the Accept button to be pressed.
vizact.onbuttondown(dlg.accept,dlg.visible,viz.TOG GLE)
viz.add('gallery.ive')

Is there a specific reason you don't want to use tasks? They are made for these type of cases where you want a linear flow of operations. Either way, here is how you would handle this without tasks. The code sets up a callback for the accept button and calls a function when it is clicked.

Code:

import viz

import vizdlg

viz.go()



#Create empty dialog

dlg = vizdlg.Dialog(title='Dialog title')

dlg.visible(1)



#Link dialog to center of window

viz.link(viz.CenterCenter,dlg)



#Hide dialog and add gallery when accept is pressed

def DialogAccept():

        dlg.visible(0)

        viz.add('gallery.ive')

vizact.onbuttonup(dlg.accept,DialogAccept)

I am new to this type of programming. If you add a
print 'The End'
at the end of the script the print statement is executed. This tells me execution continues. So I must not be approaching this the right way. What I am trying to do is prompt a user for his name. He enters it using a onscreen keyboard I have coded. Once the user has entered their name they loop over a sequence of dialogs for a set amount of time. In my code the other dialogs appear since the execution continues.

If your print statement is in the global scope then it will be executed during the script loading. All that sample code does is register a callback for when the accept button of the dialog is clicked and calls the specified function. If you need to display a series of dialogs sequentially, then I highly recommend using tasks. Using a callback approach will become very difficult once you have more than one dialog.