Re: Unfortunate pixel width of one TAB

[Kenichi Handa]

Richard Stallman <address@hidden> writes:

>>      (2) Make a new macro FONT_SPACE_WIDTH that returns the width
>>      of space glyph of the font of the frame.  We can make a new
>>      member `space_width' in the struct frame and make x_new_font
>>      sets it value.

>>      (3) Calculate tab width based on FONT_SPACE_WIDTH.

>>  That might be good.  Or we could do this without changing FONT_WIDTH.
>>  That means do just 2 and 3, not 1.

>>      But, shouldn't we postpone such a change until the next
>>      release?

>>  This is a bug fix.  We should do it now.

>     Ok, I'll work on it.  Please wait for a while.

> Please reply to this when it is done.

I've just installed these changes for X:

(1) Set FRAME_COLUMN_WIDTH to the average with of a font.
  average width is got from AVERAGE_WIDTH font property.  If
  the property doesn't exist, calculate the average of SPC
  to TILDA (perhaps there exists a better method).

(2) Set FRAME_SPACE_WIDTH (new macro) to the space width of
    the frame's font, and use it for calculating tab width.

Similar change will be necessary for the other platforms.

---
Ken'ichi HANDA
address@hidden