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Subclassing a viewform to be able to set controls to bottom left/center/right [message #466011]

Wed, 28 December 2005 19:28

Christopher Goy

Messages: 38
Registered: July 2009

Member

Hello everyone,
I want to extend ViewForm in order to add methods to enable the setting of
controls to the bottom left/center/right instead of just top
left/center/right. In the java doc it said this class is not intended to be
subclassed. Does this mean, do not subclass, or its not intended to be
subclassed but you can if you want to? Thanks

Chris

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Re: Subclassing a viewform to be able to set controls to bottom left/center/right [message #466045 is a reply to message #466011]

Thu, 29 December 2005 18:40

Eclipse User

Originally posted by: shawn666.liu.gmail.com

I saw the method
protected void checkSubclass ()
is commented in SWT source code.

That means you can if you want to.

Another way is:
don't import the official ViewForm, but copy its content to your own
ViewForm class and do modifications.

"Christopher Goy" <goy@21csi.com> says:dououn$8bj$1@utils.eclipse.org...
> Hello everyone,
> I want to extend ViewForm in order to add methods to enable the setting of
> controls to the bottom left/center/right instead of just top
> left/center/right. In the java doc it said this class is not intended to
> be subclassed. Does this mean, do not subclass, or its not intended to be
> subclassed but you can if you want to? Thanks
>
> Chris
>

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Re: Subclassing a viewform to be able to set controls to bottom left/center/right [message #466139 is a reply to message #466045]

Tue, 03 January 2006 16:45

Veronika Irvine

Messages: 1272
Registered: July 2009

Senior Member

ViewForm is not intended to be subclassed. Since the methods you would need
to override to layout additional buttons are package protected, overriding
checkSubclass () will not help you.

"Shawn Liu" <shawn666.liu@gmail.com> wrote in message
news:dp1ae8$mig$1@utils.eclipse.org...
>I saw the method
> protected void checkSubclass ()
> is commented in SWT source code.
>
> That means you can if you want to.
>
> Another way is:
> don't import the official ViewForm, but copy its content to your own
> ViewForm class and do modifications.
>
> "Christopher Goy" <goy@21csi.com> says:dououn$8bj$1@utils.eclipse.org...
>> Hello everyone,
>> I want to extend ViewForm in order to add methods to enable the setting
>> of controls to the bottom left/center/right instead of just top
>> left/center/right. In the java doc it said this class is not intended to
>> be subclassed. Does this mean, do not subclass, or its not intended to
>> be subclassed but you can if you want to? Thanks
>>
>> Chris
>>
>
>

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