Re: [Newbies] PluggableTextMorph

Le Sunday 27 August 2006 18:02, Keith McKay a écrit :

Hi

I'm looking for some advice on setting the margins in a PluggableTextMorph(PTM) programaticaly. It can be done easily once the PTM is open in the World by drilling down to the TextMorph and invoking its menu using the halos, but I would like the option of initialising them, or adding as an item to a menu of the PTM.

Am I missing something obvious? Should I just use a TextMorph instead? Hints rather than solutions would be preferable.

I see two solutions :

one is to make two new classes : PluggableTextMorphWithMargins that is a subclass of PluggableTextMorph TextMorphForEditViewWithMargins that is a subclass of TextMorphForEditView

and one method in each new subclass : PluggableTextMorphWithMargins>>textMorphClass "Answer the class used to create the receiver's textMorph" ^ TextMorphForEditViewWithMargins

TextMorphForEditViewWithMargins>>initialize super initialize. self margins: 10@10

And now you can use PluggableTextMorphWithMargins instead of PluggableTextMorph.

another solution is two send 'ptm textMorph margins: 10@10' to your PluggableTextMorph instance (ptm) from PluggableTextMorph instance owner (in your GUI class initialize instance method for example). I think this is a better way ('one particular need, one subclass' is often not a good scheme...)

alain

Thanks

Keith Hamilton, Scotland