On 5/21/10 7:19 AM, John wrote:
> On Friday 21 May 2010 06:31:19 am Paul McNett wrote:
>> The form defined by firstForm.cdxml needs to derive from dabo.ui.dFormMain,
>> and not dabo.ui.dForm.
>>
>>> I put the following code in the afterInitAll of the firstForm:
>>> frm=dabo.ui.createForm("c:\Projects\UTerv\ui\secondForm.cdxml",
>>> ...self.Application.MainForm)
>>> frm.show()
>>
>> It would be equivalent to say:
>>
>> frm = dabo.ui.createForm("c:\Projects\UTerv\ui\secondForm.cdxml", self)
>
> Paul now I'm confused. As I read this thread the poster has added
> "MDI = True" to the first form or calling form. It is my understanding that
> adding MDI will force the first form to derive from "dabo.ui.dFormMain".
> Maybe this has not been done?
Setting dabo.settings.MDI to True changes dForm to derive from wx.MDIChildFrame
and
dFormMain to derive from wx.MDIParentFrame. That is all it does. It *does not*
make
Application.MainForm derive from dFormMain.
For MDI to work in Dabo, you need to satisfy all these things:
+ dabo.settings.MDI = True
+ parent form needs to derive from dabo.ui.dFormMain
+ child forms need to derive from dabo.ui.dForm
It actually isn't required for Application.MainForm to refer to the dFormMain
instance, but I can't see why it wouldn't in all normal cases.
> Therefore, the posters code to start the second form is correct in my mind.
> Am I wrong?
It was fine. I was just pointing out that 'self' and
'self.Application.MainForm' are
the same object in this case.
> It could be that the issue is - he has added objects/controls to the first
> form. I would think it could cause issues.
I don't think adding objects to dFormMain in an MDI context would work very
well.
> Added thought - the ClassDesigner does not provide an easy way to set the MDI
> property. Maybe the opening screen could provide a "MDI Form" or some such
> description.
All that is needed, beyond making the child frames instantiate in a dFormMain
instance, is to set dabo.settings.MDI = True, before the forms instantiate.
This would likely go in the bootstrap code (the main .py file) before the
application
was even instantiated:
import dabo
dabo.settings.MDI = True
app = dabo.dApp(...)
...
Not sure how to make that a class designer setting, since the class designer
edits
individual classes, not applications as a whole.
Paul
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