if (CHARPOS (top) > ZV)
SET_TEXT_POS (top, BEGV, BEGV_BYTE);
+ /* If the top of the window is after CHARPOS, the latter is surely
+ not visible. */
+ if (charpos >= 0 && CHARPOS (top) > charpos)
+ return visible_p;
+
/* Compute exact mode line heights. */
if (WINDOW_WANTS_MODELINE_P (w))
w->mode_line_height
frames when the fringes are turned off. But leave the dimensions
zero for tooltip frames, as these glyphs look ugly there and also
sabotage calculations of tooltip dimensions in x-show-tip. */
-#ifdef HAVE_WINDOW_SYSTEM
- if (!(FRAME_WINDOW_P (it->f)
- && FRAMEP (tip_frame)
- && it->f == XFRAME (tip_frame)))
-#endif
+ if (!FRAME_TOOLTIP_P (it->f))
{
if (it->line_wrap == TRUNCATE)
{
&& it->dpvec + it->current.dpvec_index + 1 >= it->dpend)))
/* If there's a line-/wrap-prefix, handle it. */
- if (it->hpos == 0 && it->method == GET_FROM_BUFFER
- && it->current_y < it->last_visible_y)
+ if (it->hpos == 0 && it->method == GET_FROM_BUFFER)
handle_line_prefix (it);
if (IT_CHARPOS (*it) < CHARPOS (this_line_min_pos))
if ((FRAME_WINDOW_P (f)
|| FRAME_MINIBUF_ONLY_P (f)
|| f->explicit_name)
- && NILP (Fframe_parameter (frame, Qtooltip)))
+ && !FRAME_TOOLTIP_P (f))
{
/* Do we have more than one visible frame on this X display? */
Lisp_Object tail, other_frame, fmt;
if (tf != f
&& FRAME_KBOARD (tf) == FRAME_KBOARD (f)
&& !FRAME_MINIBUF_ONLY_P (tf)
- && !EQ (other_frame, tip_frame)
+ && !FRAME_TOOLTIP_P (tf)
&& (FRAME_VISIBLE_P (tf) || FRAME_ICONIFIED_P (tf)))
break;
}
{
bool all_windows = windows_or_buffers_changed || update_mode_lines;
bool some_windows = REDISPLAY_SOME_P ();
- Lisp_Object tooltip_frame;
-
-#ifdef HAVE_WINDOW_SYSTEM
- tooltip_frame = tip_frame;
-#else
- tooltip_frame = Qnil;
-#endif
if (FUNCTIONP (Vpre_redisplay_function))
{
&& !XBUFFER (w->contents)->text->redisplay)
continue;
- if (!EQ (frame, tooltip_frame)
+ if (!FRAME_TOOLTIP_P (f)
&& (FRAME_ICONIFIED_P (f)
|| FRAME_VISIBLE_P (f) == 1
/* Exclude TTY frames that are obscured because they
struct window *w = XWINDOW (FRAME_SELECTED_WINDOW (f));
/* Ignore tooltip frame. */
- if (EQ (frame, tooltip_frame))
+ if (FRAME_TOOLTIP_P (f))
continue;
if (some_windows
The new window start will be computed, based on W's width, starting
from the start of the continued line. It is the start of the
- screen line with the minimum distance from the old start W->start. */
+ screen line with the minimum distance from the old start W->start,
+ which is still before point (otherwise point will definitely not
+ be visible in the window). */
static bool
compute_window_start_on_continuation_line (struct window *w)
{
- struct text_pos pos, start_pos;
+ struct text_pos pos, start_pos, pos_before_pt;
bool window_start_changed_p = false;
SET_TEXT_POS_FROM_MARKER (start_pos, w->start);
reseat_at_previous_visible_line_start (&it);
/* If the line start is "too far" away from the window start,
- say it takes too much time to compute a new window start. */
- if (CHARPOS (start_pos) - IT_CHARPOS (it)
- /* PXW: Do we need upper bounds here? */
- < WINDOW_TOTAL_LINES (w) * WINDOW_TOTAL_COLS (w))
+ say it takes too much time to compute a new window start.
+ Also, give up if the line start is after point, as in that
+ case point will not be visible with any window start we
+ compute. */
+ if (IT_CHARPOS (it) <= PT
+ || (CHARPOS (start_pos) - IT_CHARPOS (it)
+ /* PXW: Do we need upper bounds here? */
+ < WINDOW_TOTAL_LINES (w) * WINDOW_TOTAL_COLS (w)))
{
int min_distance, distance;
decreased, the new window start will be < the old start.
So, we're looking for the display line start with the
minimum distance from the old window start. */
- pos = it.current.pos;
+ pos_before_pt = pos = it.current.pos;
min_distance = INFINITY;
while ((distance = eabs (CHARPOS (start_pos) - IT_CHARPOS (it))),
distance < min_distance)
{
min_distance = distance;
+ if (CHARPOS (pos) <= PT)
+ pos_before_pt = pos;
pos = it.current.pos;
if (it.line_wrap == WORD_WRAP)
{
move_it_by_lines (&it, 1);
}
+ /* It makes very little sense to make the new window start
+ after point, as point won't be visible. If that's what
+ the loop above finds, fall back on the candidate before
+ or at point that is closest to the old window start. */
+ if (CHARPOS (pos) > PT)
+ pos = pos_before_pt;
+
/* Set the window start there. */
SET_MARKER_FROM_TEXT_POS (w->start, pos);
window_start_changed_p = true;
eassume (0 < glyph_len); /* See Bug#8512. */
do
- c = COMPOSITION_GLYPH (cmp, --glyph_len);
- while (c == '\t' && 0 < glyph_len);
+ c = COMPOSITION_GLYPH (cmp, glyph_len - 1);
+ while (c == '\t' && 0 < --glyph_len);
bool right_padded = glyph_len < cmp->glyph_len;
for (i = 0; i < glyph_len; i++)