(compute_line_metrics): On ttys, subtract continuation

glyphs and truncation glyphs at the end of a row from its pixel
width.
(dump_glyph_row): Print row's continuation_lines_width.
(try_window_id): Take the shortcut if ZV is visible in the
window, but there are actually no changes at ZV.

diff --git a/src/xdisp.c b/src/xdisp.c
index bab134e2ef9c0fa2c4dc40959698459f646d6f7a..fa775d87d1b2d54e54e1444fefec8f4af6290d1a 100644 (file)
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -11260,12 +11260,14 @@ try_window_id (w)
     }
 
   /* Handle the case that changes are all below what is displayed in
-     the window, and that PT is in the window.  This short cut cannot
+     the window, and that PT is in the window.  This shortcut cannot
      be taken if ZV is visible in the window, and text has been added
      there that is visible in the window.  */
   if (first_changed_charpos >= MATRIX_ROW_END_CHARPOS (row)
-      /* ZV is not visible in the window.  */
-      && current_matrix->zv > MATRIX_ROW_END_CHARPOS (row))
+      /* ZV is not visible in the window, or there are no
+        changes at ZV, actually.  */
+      && (current_matrix->zv > MATRIX_ROW_END_CHARPOS (row)
+         || first_changed_charpos == last_changed_charpos))
     {
       struct glyph_row *r0;
 
@@ -11420,7 +11422,7 @@ try_window_id (w)
   
 #endif /* GLYPH_DEBUG != 0 */
 
-
+  
   /* Display new lines.  Set last_text_row to the last new line
      displayed which has text on it, i.e. might end up as being the
      line where the window_end_vpos is.  */
@@ -11904,7 +11906,7 @@ dump_glyph_row (matrix, vpos, glyphs)
       fprintf (stderr, "=======================================================================\n");
   
       fprintf (stderr, "%3d %5d %5d %4d %1.1d%1.1d%1.1d%1.1d%1.1d%1.1d\
-%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d %4d %4d %4d %4d %4d %4d %4d\n",
+%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d%1.1d  %4d %4d %4d %4d %4d %4d %4d\n",
               row - matrix->rows,
               MATRIX_ROW_START_CHARPOS (row),
               MATRIX_ROW_END_CHARPOS (row),
@@ -11930,8 +11932,9 @@ dump_glyph_row (matrix, vpos, glyphs)
               row->visible_height,
               row->ascent,
               row->phys_ascent);
-      fprintf (stderr, "%9d %5d\n", row->start.overlay_string_index,
-              row->end.overlay_string_index);
+      fprintf (stderr, "%9d %5d\t%5d\n", row->start.overlay_string_index,
+              row->end.overlay_string_index,
+              row->continuation_lines_width);
       fprintf (stderr, "%9d %5d\n",
               CHARPOS (row->start.string_pos),
               CHARPOS (row->end.string_pos));
@@ -12261,6 +12264,10 @@ compute_line_metrics (it)
   else
     {
       row->pixel_width = row->used[TEXT_AREA];
+      if (row->continued_p)
+       row->pixel_width -= it->continuation_pixel_width;
+      else if (row->truncated_on_right_p)
+       row->pixel_width -= it->truncation_pixel_width;
       row->ascent = row->phys_ascent = 0;
       row->height = row->phys_height = row->visible_height = 1;
     }