Bram Moolenaar wrote:
> Patch 7.2.119
> Problem: Status line is redrawn too often.
> Solution: Check ScreeenLinesUC[] properly. (Yukihiro Nakadaira)
> Files: src/screen.c
Sorry, one more patch related to this.
When bold character is overwritten, all of rest characters are redrawn.
See following code in the screen_puts_len() function. At line 6402
"attr + 1" is assigned to next cell. And "n > HL_ALL" is always true
when syntax highlighting is used. So once character is drawn, all of
rest characters are redrawn.
Please check attached patch.
6372 #if defined(FEAT_GUI) || defined(UNIX)
6373 /* The bold trick makes a single row of pixels appear in the
next
6374 * character. When a bold character is removed, the next
6375 * character should be redrawn too. This happens for our own
GUI
6376 * and for some xterms.
6377 * Force the redraw by setting the attribute to a different
value
6378 * than "attr", the contents of ScreenLines[] may be needed by
6379 * mb_off2cells() further on.
6380 * Don't do this for the last drawn character, because the next
6381 * character may not be redrawn. */
6382 if (
6383 # ifdef FEAT_GUI
6384 gui.in_use
6385 # endif
6386 # if defined(FEAT_GUI) && defined(UNIX)
6387 ||
6388 # endif
6389 # ifdef UNIX
6390 term_is_xterm
6391 # endif
6392 )
6393 {
6394 int n;
6395
6396 n = ScreenAttrs[off];
6397 # ifdef FEAT_MBYTE
6398 if (col + mbyte_cells < screen_Columns
6399 && (n > HL_ALL || (n & HL_BOLD))
6400 && (len < 0 ? ptr[mbyte_blen] != NUL
6401 : ptr + mbyte_blen < text +
len))
6402 ScreenAttrs[off + mbyte_cells] = attr + 1;
6403 # else
6404 if (col + 1 < screen_Columns
6405 && (n > HL_ALL || (n & HL_BOLD))
6406 && (len < 0 ? ptr[1] != NUL : ptr + 1 < text +
len))
6407 ScreenLines[off + 1] = 0;
6408 # endif
6409 }
6410 #endif
--
Yukihiro Nakadaira - yukihiro.nakada...@gmail.com
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Index: src/screen.c
===================================================================
RCS file: /cvsroot/vim/vim7/src/screen.c,v
retrieving revision 1.113
diff -u -r1.113 screen.c
--- src/screen.c 22 Feb 2009 00:14:54 -0000 1.113
+++ src/screen.c 22 Feb 2009 17:20:54 -0000
@@ -6275,6 +6275,10 @@
int pcc[MAX_MCO];
# endif
#endif
+#if defined(FEAT_MBYTE) || defined(FEAT_GUI) || defined(UNIX)
+ int redraw_this;
+ int redraw_next = FALSE;
+#endif
if (ScreenLines == NULL || row >= screen_Rows) /* safety check */
return;
@@ -6287,7 +6291,25 @@
&& !gui.in_use
# endif
&& mb_fix_col(col, row) != col)
- screen_puts_len((char_u *)" ", 1, row, col - 1, 0);
+ {
+ int i;
+
+ off = LineOffset[row] + col;
+ for (i = 0; i < 2; ++i)
+ {
+ ScreenLines[off - i] = ' ';
+ ScreenAttrs[off - i] = 0;
+ if (enc_utf8)
+ {
+ ScreenLinesUC[off - i] = 0;
+ ScreenLinesC[0][off - i] = 0;
+ }
+ }
+ /* redraw only previous cell */
+ screen_char(off - 1, row, col - 1);
+ /* force the first cell be redrawn */
+ redraw_next = TRUE;
+ }
#endif
off = LineOffset[row] + col;
@@ -6354,6 +6376,11 @@
}
#endif
+#if defined(FEAT_MBYTE) || defined(FEAT_GUI) || defined(UNIX)
+ redraw_this = redraw_next;
+ redraw_next = FALSE;
+#endif
+
if (ScreenLines[off] != c
#ifdef FEAT_MBYTE
|| (mbyte_cells == 2
@@ -6367,18 +6394,16 @@
#endif
|| ScreenAttrs[off] != attr
|| exmode_active
+#if defined(FEAT_MBYTE) || defined(FEAT_GUI) || defined(UNIX)
+ || redraw_this
+#endif
)
{
#if defined(FEAT_GUI) || defined(UNIX)
/* The bold trick makes a single row of pixels appear in the next
* character. When a bold character is removed, the next
* character should be redrawn too. This happens for our own GUI
- * and for some xterms.
- * Force the redraw by setting the attribute to a different value
- * than "attr", the contents of ScreenLines[] may be needed by
- * mb_off2cells() further on.
- * Don't do this for the last drawn character, because the next
- * character may not be redrawn. */
+ * and for some xterms. */
if (
# ifdef FEAT_GUI
gui.in_use
@@ -6394,18 +6419,10 @@
int n;
n = ScreenAttrs[off];
-# ifdef FEAT_MBYTE
- if (col + mbyte_cells < screen_Columns
- && (n > HL_ALL || (n & HL_BOLD))
- && (len < 0 ? ptr[mbyte_blen] != NUL
- : ptr + mbyte_blen < text + len))
- ScreenAttrs[off + mbyte_cells] = attr + 1;
-# else
- if (col + 1 < screen_Columns
- && (n > HL_ALL || (n & HL_BOLD))
- && (len < 0 ? ptr[1] != NUL : ptr + 1 < text + len))
- ScreenLines[off + 1] = 0;
-# endif
+ if (n > HL_ALL)
+ n = syn_attr2attr(n);
+ if (n & HL_BOLD)
+ redraw_next = TRUE;
}
#endif
#ifdef FEAT_MBYTE
@@ -6492,6 +6509,17 @@
++ptr;
}
}
+#if defined(FEAT_MBYTE) || defined(FEAT_GUI) || defined(UNIX)
+ if (redraw_next && col < screen_Columns)
+ {
+# if defined(FEAT_MBYTE)
+ if (enc_dbcs != 0 && dbcs_off2cells(off, max_off) > 1)
+ screen_char_2(off, row, col);
+ else
+# endif
+ screen_char(off, row, col);
+ }
+#endif
}
#ifdef FEAT_SEARCH_EXTRA
