To: vim-dev@vim.org
Subject: Patch 7.1.234
Fcc: outbox
From: Bram Moolenaar <Bram@moolenaar.net>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
------------
Patch 7.1.234
Problem: When diff'ing three files the third one isn't displayed correctly.
(Gary Johnson)
Solution: Compute the size of diff blocks correctly when merging blocks.
Compute filler lines correctly when scrolling.
Files: src/diff.c
*** ../vim-7.1.233/src/diff.c Fri Oct 19 18:57:33 2007
--- src/diff.c Fri Jan 18 17:32:31 2008
***************
*** 1299,1305 ****
}
else
/* second overlap of new block with existing block */
! dp->df_count[idx_new] += count_new - count_orig;
/* Adjust the size of the block to include all the lines to the
* end of the existing block or the new diff, whatever ends last. */
--- 1299,1307 ----
}
else
/* second overlap of new block with existing block */
! dp->df_count[idx_new] += count_new - count_orig
! + dpl->df_lnum[idx_orig] + dpl->df_count[idx_orig]
! - (dp->df_lnum[idx_orig] + dp->df_count[idx_orig]);
/* Adjust the size of the block to include all the lines to the
* end of the existing block or the new diff, whatever ends last. */
***************
*** 1628,1641 ****
win_T *fromwin;
win_T *towin;
{
! buf_T *buf = fromwin->w_buffer;
linenr_T lnum = fromwin->w_topline;
! int idx;
diff_T *dp;
int i;
! idx = diff_buf_idx(buf);
! if (idx == DB_COUNT)
return; /* safety check */
if (curtab->tp_diff_invalid)
--- 1630,1645 ----
win_T *fromwin;
win_T *towin;
{
! buf_T *frombuf = fromwin->w_buffer;
linenr_T lnum = fromwin->w_topline;
! int fromidx;
! int toidx;
diff_T *dp;
+ int max_count;
int i;
! fromidx = diff_buf_idx(frombuf);
! if (fromidx == DB_COUNT)
return; /* safety check */
if (curtab->tp_diff_invalid)
***************
*** 1645,1686 ****
/* search for a change that includes "lnum" in the list of diffblocks. */
for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next)
! if (lnum <= dp->df_lnum[idx] + dp->df_count[idx])
break;
if (dp == NULL)
{
/* After last change, compute topline relative to end of file; no
* filler lines. */
towin->w_topline = towin->w_buffer->b_ml.ml_line_count
! - (buf->b_ml.ml_line_count - lnum);
}
else
{
/* Find index for "towin". */
! i = diff_buf_idx(towin->w_buffer);
! if (i == DB_COUNT)
return; /* safety check */
! towin->w_topline = lnum + (dp->df_lnum[i] - dp->df_lnum[idx]);
! if (lnum >= dp->df_lnum[idx])
{
! /* Inside a change: compute filler lines. */
! if (dp->df_count[i] == dp->df_count[idx])
towin->w_topfill = fromwin->w_topfill;
! else if (dp->df_count[i] > dp->df_count[idx])
{
! if (lnum == dp->df_lnum[idx] + dp->df_count[idx])
! towin->w_topline = dp->df_lnum[i] + dp->df_count[i]
! - fromwin->w_topfill;
}
! else
{
! if (towin->w_topline >= dp->df_lnum[i] + dp->df_count[i])
{
! if (diff_flags & DIFF_FILLER)
! towin->w_topfill = dp->df_lnum[idx]
! + dp->df_count[idx] - lnum;
! towin->w_topline = dp->df_lnum[i] + dp->df_count[i];
}
}
}
--- 1649,1720 ----
/* search for a change that includes "lnum" in the list of diffblocks. */
for (dp = curtab->tp_first_diff; dp != NULL; dp = dp->df_next)
! if (lnum <= dp->df_lnum[fromidx] + dp->df_count[fromidx])
break;
if (dp == NULL)
{
/* After last change, compute topline relative to end of file; no
* filler lines. */
towin->w_topline = towin->w_buffer->b_ml.ml_line_count
! - (frombuf->b_ml.ml_line_count - lnum);
}
else
{
/* Find index for "towin". */
! toidx = diff_buf_idx(towin->w_buffer);
! if (toidx == DB_COUNT)
return; /* safety check */
! towin->w_topline = lnum + (dp->df_lnum[toidx] - dp->df_lnum[fromidx]);
! if (lnum >= dp->df_lnum[fromidx])
{
! /* Inside a change: compute filler lines. With three or more
! * buffers we need to know the largest count. */
! max_count = 0;
! for (i = 0; i < DB_COUNT; ++i)
! if (curtab->tp_diffbuf[i] != NULL
! && max_count < dp->df_count[i])
! max_count = dp->df_count[i];
!
! if (dp->df_count[toidx] == dp->df_count[fromidx])
! {
! /* same number of lines: use same filler count */
towin->w_topfill = fromwin->w_topfill;
! }
! else if (dp->df_count[toidx] > dp->df_count[fromidx])
{
! if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx])
! {
! /* more lines in towin and fromwin doesn't show diff
! * lines, only filler lines */
! if (max_count - fromwin->w_topfill >= dp->df_count[toidx])
! {
! /* towin also only shows filler lines */
! towin->w_topline = dp->df_lnum[toidx]
! + dp->df_count[toidx];
! towin->w_topfill = fromwin->w_topfill;
! }
! else
! /* towin still has some diff lines to show */
! towin->w_topline = dp->df_lnum[toidx]
! + max_count - fromwin->w_topfill;
! }
}
! else if (towin->w_topline >= dp->df_lnum[toidx]
! + dp->df_count[toidx])
{
! /* less lines in towin and no diff lines to show: compute
! * filler lines */
! towin->w_topline = dp->df_lnum[toidx] + dp->df_count[toidx];
! if (diff_flags & DIFF_FILLER)
{
! if (lnum == dp->df_lnum[fromidx] + dp->df_count[fromidx])
! /* fromwin is also out of diff lines */
! towin->w_topfill = fromwin->w_topfill;
! else
! /* fromwin has some diff lines */
! towin->w_topfill = dp->df_lnum[fromidx]
! + max_count - lnum;
}
}
}
*** ../vim-7.1.233/src/version.c Fri Jan 18 13:15:32 2008
--- src/version.c Fri Jan 18 17:37:32 2008
***************
*** 668,669 ****
--- 668,671 ----
{ /* Add new patch number below this line */
+ /**/
+ 234,
/**/
--
ERIC IDLE PLAYED: THE DEAD COLLECTOR, MR BINT (A VILLAGE NE'ER-DO -WELL VERY
KEEN ON BURNING WITCHES), SIR ROBIN, THE GUARD WHO DOESN'T
HICOUGH BUT TRIES TO GET THINGS STRAIGHT, CONCORDE (SIR
LAUNCELOT'S TRUSTY STEED), ROGER THE SHRUBBER (A SHRUBBER),
BROTHER MAYNARD
"Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD
/// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ download, build and distribute -- http://www.A-A-P.org ///
\\\ help me help AIDS victims -- http://ICCF-Holland.org ///