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how to set text widget read-only regions ?

Posted by christinawu (christinawu), 27 December 2004
hi, I try to realize that some regions in text widget are read-only.I mean that a line in text is read-only and maybe next line is writable in the same text. I try to use "tag" to do it but  it is not easy.  Someone has any good ideas? I would be greatly appreciated to gain any advice.

Posted by admin (Graham Ellis), 27 December 2004
How about using two widgets - one for the read only text and another for the text that can be changed?

Posted by christinawu (christinawu), 28 December 2004
It's a good idea, but I hope a line is read-only and next line is writable and next next line is still read-only in my program.  For example:
/* ADD YOUR MEMBER FUNCTION HERE*/
void myfunction() {
     /* ADD YOUR CODE HERE*/

 int i,j;
 for (i=0;i<9;i++)
 {
     j=i*i;    
 }

}
In above programme,   line with mark like"/*  */" is read-only, and other line is writable.

Posted by christinawu (christinawu), 29 December 2004
ActiveState Tcl/Tk help document  tells me that "tag configure" has options "-state". I try to use "$w tag config readonly -state disabled".  But my program tells me "no option "state"". I am puzzling greatly. How to resolve it ? Thanks a lot.



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