Re: Identifying the face between STRETCH and right fringe.

[Robert Pluim]

Eli Zaretskii <address@hidden> writes:

>
> On a GUI frame, extend_face_to_end_of_line is supposed to return
> almost immediately, here:
>
>   if (FRAME_WINDOW_P (f)
>       && MATRIX_ROW_DISPLAYS_TEXT_P (it->glyph_row)
>       && face->box == FACE_NO_BOX
>       && face->background == FRAME_BACKGROUND_PIXEL (f)
> #ifdef HAVE_WINDOW_SYSTEM
>       && !face->stipple
> #endif
>       && !it->glyph_row->reversed_p)
>     return;      <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
>

When we get here, face->background == 1, and FRAME_BACKGROUND_PIXEL ==
0xfffeffff

Looking through nsfns.m, the problem becomes obvious: the NS port uses
indices into a color table to specify the background colour of faces,
and FRAME_BACKGROUND_PIXEL is an RGBA value.

Iʼm not sure how best to fix this. Thereʼs
f->output_data.ns->background_color, but that would still need to be
converted to RGBA.

Robert