Re: Patch for Mac OS X Text Drawing

[YAMAMOTO Mitsuharu]

>>>>> On Mon, 24 Jan 2005 11:08:02 +0100, address@hidden (Kim F. Storm) said:

>> Here is a revised patch including a fix for the above bug.

> Very good, thanks!  Please install it.

Thanks for checking.  I'd like to leave it to Steven because the whole
patch (attached below) includes some changes for Mac.  Actually, I
cannot do it by myself at the moment.

                                     YAMAMOTO Mitsuharu
                                address@hidden

2005-01-24  YAMAMOTO Mitsuharu  <address@hidden>

        * dispextern.h (struct glyph_string): New members clip_head and
        clip_tail.
        
        * xdisp.c (get_glyph_string_clip_rect): Restrict horizontal clip
        region to the area between clip_head and clip_tail.
        (draw_glyphs): Record the area that need to be actually redrawn to
        the new variables clip_head and clip_tail when there are
        overhangs.  Set values of these variables to the corresponding
        members in struct glyph_string.  Refine x coordinates for
        notice_overwritten_cursor using clip_head and clip_tail.
        
        * macgui.h (STORE_XCHARSETSTRUCT): New macro.

        * macterm.c (mac_compute_glyph_string_overhangs): Implement with
        QDTextBounds.
        (x_draw_glyph_string): Don't fill the background of the successor
        of a glyph with a right overhang if the successor will draw a
        cursor.
        (XLoadQueryFont): Obtain font metrics using QDTextBounds.
        (x_redisplay_interface): Add entry for
        compute_glyph_string_overhangs.

diff-overhangs.gz
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