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(draw_window_fringes): Return value now indicates if

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any fringe bitmaps were redrawn (or there are no fringes).
This commit is contained in:
Kim F. Storm 2004-10-07 21:57:53 +00:00
parent 98c95e4e0d
commit 11491cbb2a
1 changed files with 24 additions and 9 deletions
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33
src/fringe.c
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@ -722,19 +722,35 @@ draw_row_fringe_bitmaps (w, row)
}
/* Draw the fringes of window W. Only fringes for rows marked for
update in redraw_fringe_bitmaps_p are drawn. */
update in redraw_fringe_bitmaps_p are drawn.
void
draw_window_fringes (w)
Return >0 if left or right fringe was redrawn in any way.
If NO_FRINGE is non-zero, also return >0 if either fringe has zero width.
A return value >0 indicates that the vertical line between windows
needs update (as it may be drawn in the fringe).
*/
int
draw_window_fringes (w, no_fringe)
struct window *w;
int no_fringe;
{
struct glyph_row *row;
int yb = window_text_bottom_y (w);
int nrows = w->current_matrix->nrows;
int y = 0, rn;
int updated = 0;
if (w->pseudo_window_p)
return;
return 0;
/* Must draw line if no fringe */
if (no_fringe
&& (WINDOW_LEFT_FRINGE_WIDTH (w) == 0
|| WINDOW_RIGHT_FRINGE_WIDTH (w) == 0))
updated++;
for (y = 0, rn = 0, row = w->current_matrix->rows;
y < yb && rn < nrows;
@ -744,7 +760,10 @@ draw_window_fringes (w)
continue;
draw_row_fringe_bitmaps (w, row);
row->redraw_fringe_bitmaps_p = 0;
updated++;
}
return updated;
}
@ -950,11 +969,7 @@ update_window_fringes (w, force_p)
Typically, we add an equal amount (+/- 1 pixel) to each fringe,
but a negative width value is taken literally (after negating it).
We never make the fringes narrower than specified. It is planned
to make fringe bitmaps customizable and expandable, and at that
time, the user will typically specify the minimum number of pixels
needed for his bitmaps, so we shouldn't select anything less than
what is specified.
We never make the fringes narrower than specified.
*/
void