Re: Notebooks in Gtk+ v1.2.x

[Steve & Patti Getzinger <psatg bluemarble net>]

Jim Parker wrote:
> G'Day !
>
> Well no one responded to my last message.  I'll assume it is do to my 
> poor communication skills and not being filtered to /dev/null  ;-)
>
> I am developing a CAD program.  What I am trying to do is have multiple 
> drawing areas (OpenGL) available via a
> notebook.  Each drawing area needs access to the toolbar and menus, but 
> should have diffrent scale factors and viewing angles, among other 
> things.  It is not known how many possible drawing areas will be open at 
> any given time.
>
> I have been able to create the notebook and a couple of windows, but can 
> not figure out how to get them to respond to menu commands independently.
>
> My current thought is to create a struct, something like:
>
>     typedef struct {
>       GtkWidget  *notebook_page;
>       GtkWidget  *drawing_area;
>       gint        page_number;
>       gfloat      xRotation;
>       gfloat      yRotation;
>           gfloat      zRotation;
>           gfloat      scale;
>     } typNotebookPage;
>
> Now as I add a drawing area, I can fill the struct and add it to a 
> linked list.
>
> Now here is where I am confused.  I figure that, I can find the node in 
> the linked list during a page switch event, and use the memory address 
> to assign to a "current" struct, giving me access to the scale and rotation
> variables.  This somehow does not seem to be the best way to do it.  I 
> think that I will still have all my drawing areas respond to menu 
> commands, when in affect they shoud be frozen.
>
> My guess is that what I am trying to do is something similar to what the 
> do with spreadsheets.  I tried to figure out how gnumeric did it, but 
> got lost trying to follow the code.
>
> Anybody have any thoughts or suggestions on this problem.  Am I on the 
> right track ?
>
> cheers,
> Jim Parker
>
> http://gtkcad.sourceforge.net/
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Ok maybe I am going to get to simple here :) What about naming your 
elements in the page to reflect page #. So example: entry1 becomes 
1_entry1. Now if you hit the page to determine the # you can simply 
prepend it to the element name and your menu hits that element. No idea 
if that would work just an off the cuff idea.

Steve