Hi Mathieu,
to do what you want, i.e. equal sized labels and buttons, use the right
layout manager options when putting the buttons in the frames.
For an example see:
http://root.cern.ch/root/html/src/TRootDialog.cxx.html#TRootDialog:Popup
where three buttons (OK, Apply and Cancel) are layed out with the same
size. Notice how
TGLayoutHints *l1 = new TGLayoutHints(kLHintsCenterY | kLHintsExpandX, 5, 5,
0, 0);
is used to make equal sized widgets evenly spaced in X.
I am a bit reluctant to change the default behaviour since it might break
the look of many GUI's.
Cheers, Fons.
Mathieu de Naurois wrote:
>
> Hello Rooters,
>
> In the Layout mechanisms (of Dialog windows), the function GetDefaultSize
> is called for each Widget in the frame.
>
> This function is usually defined as (in TGFrame)
>
> TGDimension GetSize() const { return TGDimension(fWidth, fHeight); }
>
> But, TGlabel redefines this function as:
>
> virtual TGDimension GetDefaultSize() const
> { return TGDimension(fTWidth, fTHeight+1); }
>
> And the function Resize does NOT change fTWidth and fTHeight, but just
> fWidth and fHeight.
>
> The consequence is:
>
> Even if you resize the widget with a call to the Resize function, the
> Layout algorithm will resize it to its default size, that is, to the size
> of the text inside. I wanted many TGLabel's to have the same size, so I
> can align then on the right (with right justification of the text). The
> only solution I found was to created a new classe, derived from TGLabel,
> and restoring the GetDimension function to its original value.
>
> Here is my question:
>
> Is there any reason to redefine the GetDefaultSize function in TGLabel
> (and also in TGButton and derived classes)? And if yes, how can I change
> the size of a Label? (One can imagine to refine the Resize function.)
>
> Thank you.
>
> -----------------------------------------------------
> Mathieu de Naurois
> LPNHE Ecole Polytechnique
> denauroi@polhp1.in2p3.fr
--
Org: CERN, European Laboratory for Particle Physics.
Mail: 1211 Geneve 23, Switzerland Phone: +41 22 7679248
E-Mail: Fons.Rademakers@cern.ch Fax: +41 22 7677910
This archive was generated by hypermail 2b29 : Tue Jan 04 2000 - 00:34:38 MET