On Mon, 3 Feb 2003, Angus Leeming wrote:
>
> Print statements, CG, print statements!
>
Sorry, I cannot catch you. What do you mean by "Print statements"?
> Looking at struct SPEC:
> int xoffset;
> int yoffset;
> int position; /* cursor position (in chars) */
> int xpos, ypos; /* current cursor position in char,line */
>
Besides these, there are some more: sp->input->x, sp->input-y. I have
tried to find a correct combination of these parameters without any success.
> Which of these is important? Hmmm.
>
> Ahhh. Look at routine make_cursor_visible. It looks to me like you want
> sp->xoffset and perhaps sp->yoffset. This should give you the cursor position
> in PIXELs relative to the top left corner of the widget.
>
> Presumably you want position relative to the top left corner of the window:
> int xpos = ob->x + sp->xoffset;
>
> Of course, I'm just guessing here. Use print statements!!!!
>
> static void
> make_cursor_visible(FL_OBJECT * ob, SPEC *sp, int startpos, int prev)
> {
> int tt = get_substring_width(ob, startpos, sp->position);
>
> if (prev == -1)
> {
> if (tt - sp->xoffset >= sp->w)
> sp->xoffset = tt - sp->w;
> else if (tt < sp->xoffset)
> sp->xoffset = tt;
> else if (tt == 0)
> sp->xoffset = 0;
> }
> else
> {
> if (tt - sp->xoffset > sp->w)
> sp->xoffset = tt - sp->w;
> }
> }
>
Hm... This looks interesting.
>
>
> Why do you need XIM to modify the XIC? You create the XIC when the form is
> made visible in forms.c. All you need is to access this XIC from XWorkArea.C
> to set the procomposition area as the current position of the cursor in the
> XWorkArea widget. (Just as you are trying to do in input.c.)
>
But how can I get "form->xic" from outside of xforms ? "fl_context->xim"
is global in xforms and thus exporting this param looks easier, no?
> Note if you do this (and get the stuff in input.c working too) then you'll be
> able to enter CJK characters in the minibuffer for free! Not sure what use
> that is, but it'll be fun ;-)
>
> Anyway, if you _really_ need xim, then add an accessor function:
> XIM fl_get_xim() { return fl_context->xim; }
> to forms.[ch]
>
This easy, Huh? Thanks!
cghan
