Patch 8.2.3193
Problem:    screenpos() is wrong when the last line is partially visible and
            'display' is "lastline".
Solution:   Also compute the position for a partially visible line.
            (closes #8599)
Files:      src/move.c, src/testdir/test_cursor_func.vim


*** ../vim-8.2.3192/src/move.c  2021-07-08 13:19:09.013465756 +0200
--- src/move.c  2021-07-21 17:40:34.958062365 +0200
***************
*** 1229,1235 ****
      int               rowoff = 0;
      colnr_T   coloff = 0;
  
!     if (pos->lnum >= wp->w_topline && pos->lnum < wp->w_botline)
      {
        colnr_T off;
        colnr_T col;
--- 1229,1235 ----
      int               rowoff = 0;
      colnr_T   coloff = 0;
  
!     if (pos->lnum >= wp->w_topline && pos->lnum <= wp->w_botline)
      {
        colnr_T off;
        colnr_T col;
***************
*** 1256,1266 ****
        col -= wp->w_leftcol;
        if (col >= wp->w_width)
            col = -1;
!       if (col >= 0)
            coloff = col - scol + wp->w_wincol + 1;
        else
!           // character is left or right of the window
!           row = scol = ccol = ecol = 0;
      }
      *rowp = W_WINROW(wp) + row + rowoff;
      *scolp = scol + coloff;
--- 1256,1266 ----
        col -= wp->w_leftcol;
        if (col >= wp->w_width)
            col = -1;
!       if (col >= 0 && row + rowoff <= wp->w_height)
            coloff = col - scol + wp->w_wincol + 1;
        else
!           // character is left, right or below of the window
!           row = rowoff = scol = ccol = ecol = 0;
      }
      *rowp = W_WINROW(wp) + row + rowoff;
      *scolp = scol + coloff;
*** ../vim-8.2.3192/src/testdir/test_cursor_func.vim    2021-01-16 
16:52:14.656334823 +0100
--- src/testdir/test_cursor_func.vim    2021-07-21 18:01:22.084882189 +0200
***************
*** 101,109 ****
--- 101,125 ----
        \ 'col': wincol + 9,
        \ 'curscol': wincol + 9,
        \ 'endcol': wincol + 9}, screenpos(winid, 2, 22))
+ 
+   let wininfo = getwininfo(winid)[0]
+   call setline(3, ['x']->repeat(wininfo.height))
+   call setline(line('$') + 1, 'x'->repeat(wininfo.width * 3))
+   setlocal nonumber display=lastline so=0
+   exe "normal G\<C-Y>\<C-Y>"
+   redraw
+   call assert_equal({'row': winrow + wininfo.height - 1,
+       \ 'col': wincol + 7,
+       \ 'curscol': wincol + 7,
+       \ 'endcol': wincol + 7}, winid->screenpos(line('$'), 8))
+   call assert_equal({'row': winrow - 1, 'col': 0, 'curscol': 0, 'endcol': 0},
+         \ winid->screenpos(line('$'), 22))
+ 
    close
    call assert_equal({}, screenpos(999, 1, 1))
+ 
    bwipe!
+   set display&
  
    call assert_equal({'col': 1, 'row': 1, 'endcol': 1, 'curscol': 1}, 
screenpos(win_getid(), 1, 1))
    nmenu WinBar.TEST :
*** ../vim-8.2.3192/src/version.c       2021-07-20 22:29:15.745365063 +0200
--- src/version.c       2021-07-21 18:03:10.268340455 +0200
***************
*** 757,758 ****
--- 757,760 ----
  {   /* Add new patch number below this line */
+ /**/
+     3193,
  /**/

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