mirror of
https://github.com/vim/vim
synced 2025-03-16 14:57:52 +01:00
Problem: 'smoothscroll' gets stuck with 'listchars' "eol". Solution: Count size of 'listchars' "eol" in line size when scrolling. (zeertzjq) related: neovim/neovim#32405 closes: #16627 Signed-off-by: zeertzjq <zeertzjq@outlook.com> Signed-off-by: Christian Brabandt <cb@256bit.org>
3404 lines
84 KiB
C
3404 lines
84 KiB
C
/* vi:set ts=8 sts=4 sw=4 noet:
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*
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* VIM - Vi IMproved by Bram Moolenaar
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*
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* Do ":help uganda" in Vim to read copying and usage conditions.
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* Do ":help credits" in Vim to see a list of people who contributed.
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* See README.txt for an overview of the Vim source code.
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*/
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/*
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* move.c: Functions for moving the cursor and scrolling text.
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*
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* There are two ways to move the cursor:
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* 1. Move the cursor directly, the text is scrolled to keep the cursor in the
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* window.
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* 2. Scroll the text, the cursor is moved into the text visible in the
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* window.
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* The 'scrolloff' option makes this a bit complicated.
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*/
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#include "vim.h"
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static void redraw_for_cursorline(win_T *wp);
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static int scrolljump_value(void);
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static int check_top_offset(void);
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static void curs_rows(win_T *wp);
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typedef struct
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{
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linenr_T lnum; // line number
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#ifdef FEAT_DIFF
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int fill; // filler lines
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#endif
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int height; // height of added line
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} lineoff_T;
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static void topline_back(lineoff_T *lp);
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static void botline_forw(lineoff_T *lp);
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/*
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* Get the number of screen lines skipped with "wp->w_skipcol".
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*/
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int
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adjust_plines_for_skipcol(win_T *wp)
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{
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if (wp->w_skipcol == 0)
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return 0;
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int width = wp->w_width - win_col_off(wp);
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int w2 = width + win_col_off2(wp);
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if (wp->w_skipcol >= width && w2 > 0)
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return (wp->w_skipcol - width) / w2 + 1;
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return 0;
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}
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/*
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* Return how many lines "lnum" will take on the screen, taking into account
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* whether it is the first line, whether w_skipcol is non-zero and limiting to
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* the window height.
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*/
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static int
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plines_correct_topline(win_T *wp, linenr_T lnum, int limit_winheight)
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{
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int n;
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#ifdef FEAT_DIFF
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if (lnum == wp->w_topline)
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n = plines_win_nofill(wp, lnum, FALSE) + wp->w_topfill;
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else
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#endif
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n = plines_win(wp, lnum, FALSE);
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if (lnum == wp->w_topline)
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n -= adjust_plines_for_skipcol(wp);
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if (limit_winheight && n > wp->w_height)
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n = wp->w_height;
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return n;
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}
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/*
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* Compute wp->w_botline for the current wp->w_topline. Can be called after
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* wp->w_topline changed.
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*/
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static void
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comp_botline(win_T *wp)
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{
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int n;
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linenr_T lnum;
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int done;
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#ifdef FEAT_FOLDING
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linenr_T last;
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int folded;
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#endif
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/*
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* If w_cline_row is valid, start there.
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* Otherwise have to start at w_topline.
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*/
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check_cursor_moved(wp);
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if (wp->w_valid & VALID_CROW)
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{
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lnum = wp->w_cursor.lnum;
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done = wp->w_cline_row;
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}
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else
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{
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lnum = wp->w_topline;
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done = 0;
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}
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for ( ; lnum <= wp->w_buffer->b_ml.ml_line_count; ++lnum)
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{
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#ifdef FEAT_FOLDING
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last = lnum;
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folded = FALSE;
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if (hasFoldingWin(wp, lnum, NULL, &last, TRUE, NULL))
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{
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n = 1;
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folded = TRUE;
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}
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else
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#endif
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{
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n = plines_correct_topline(wp, lnum, TRUE);
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}
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if (
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#ifdef FEAT_FOLDING
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lnum <= wp->w_cursor.lnum && last >= wp->w_cursor.lnum
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#else
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lnum == wp->w_cursor.lnum
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#endif
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)
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{
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wp->w_cline_row = done;
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wp->w_cline_height = n;
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#ifdef FEAT_FOLDING
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wp->w_cline_folded = folded;
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#endif
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redraw_for_cursorline(wp);
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wp->w_valid |= (VALID_CROW|VALID_CHEIGHT);
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}
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if (done + n > wp->w_height)
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break;
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done += n;
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#ifdef FEAT_FOLDING
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lnum = last;
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#endif
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}
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// wp->w_botline is the line that is just below the window
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wp->w_botline = lnum;
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wp->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
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set_empty_rows(wp, done);
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}
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/*
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* Redraw when w_cline_row changes and 'relativenumber' or 'cursorline' is
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* set.
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*/
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static void
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redraw_for_cursorline(win_T *wp)
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{
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if ((wp->w_p_rnu
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#ifdef FEAT_SYN_HL
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|| wp->w_p_cul
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#endif
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)
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&& (wp->w_valid & VALID_CROW) == 0
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&& !pum_visible())
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{
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// win_line() will redraw the number column and cursorline only.
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redraw_win_later(wp, UPD_VALID);
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}
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}
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#ifdef FEAT_SYN_HL
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/*
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* Redraw when w_virtcol changes and 'cursorcolumn' is set or 'cursorlineopt'
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* contains "screenline".
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*/
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static void
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redraw_for_cursorcolumn(win_T *wp)
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{
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if ((wp->w_valid & VALID_VIRTCOL) == 0 && !pum_visible())
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{
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// When 'cursorcolumn' is set need to redraw with UPD_SOME_VALID.
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if (wp->w_p_cuc)
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redraw_win_later(wp, UPD_SOME_VALID);
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// When 'cursorlineopt' contains "screenline" need to redraw with
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// UPD_VALID.
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else if (wp->w_p_cul && (wp->w_p_culopt_flags & CULOPT_SCRLINE))
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redraw_win_later(wp, UPD_VALID);
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}
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}
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#endif
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/*
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* Calculates how much the 'listchars' "precedes" or 'smoothscroll' "<<<"
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* marker overlaps with buffer text for window "wp".
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* Parameter "extra2" should be the padding on the 2nd line, not the first
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* line. When "extra2" is -1 calculate the padding.
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* Returns the number of columns of overlap with buffer text, excluding the
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* extra padding on the ledge.
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*/
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int
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sms_marker_overlap(win_T *wp, int extra2)
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{
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if (extra2 == -1)
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extra2 = win_col_off(wp) - win_col_off2(wp);
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#if defined(FEAT_LINEBREAK)
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// There is no marker overlap when in showbreak mode, thus no need to
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// account for it. See wlv_screen_line().
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if (*get_showbreak_value(wp) != NUL)
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return 0;
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#endif
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// Overlap when 'list' and 'listchars' "precedes" are set is 1.
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if (wp->w_p_list && wp->w_lcs_chars.prec)
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return 1;
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return extra2 > 3 ? 0 : 3 - extra2;
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}
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/*
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* Calculates the skipcol offset for window "wp" given how many
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* physical lines we want to scroll down.
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*/
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static int
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skipcol_from_plines(win_T *wp, int plines_off)
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{
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int width1 = wp->w_width - win_col_off(wp);
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int skipcol = 0;
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if (plines_off > 0)
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skipcol += width1;
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if (plines_off > 1)
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skipcol += (width1 + win_col_off2(wp)) * (plines_off - 1);
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return skipcol;
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}
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/*
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* Set curwin->w_skipcol to zero and redraw later if needed.
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*/
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static void
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reset_skipcol(void)
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{
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if (curwin->w_skipcol == 0)
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return;
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curwin->w_skipcol = 0;
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// Should use the least expensive way that displays all that changed.
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// UPD_NOT_VALID is too expensive, UPD_REDRAW_TOP does not redraw
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// enough when the top line gets another screen line.
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redraw_later(UPD_SOME_VALID);
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}
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/*
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* Update curwin->w_topline and redraw if necessary.
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* Used to update the screen before printing a message.
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*/
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void
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update_topline_redraw(void)
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{
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update_topline();
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if (must_redraw)
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update_screen(0);
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}
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/*
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* Update curwin->w_topline to move the cursor onto the screen.
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*/
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void
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update_topline(void)
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{
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long line_count;
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int halfheight;
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int n;
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#ifdef FEAT_FOLDING
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linenr_T lnum;
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#endif
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int check_topline = FALSE;
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int check_botline = FALSE;
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long *so_ptr = curwin->w_p_so >= 0 ? &curwin->w_p_so : &p_so;
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int save_so = *so_ptr;
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// Cursor is updated instead when this is TRUE for 'splitkeep'.
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if (skip_update_topline)
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return;
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// If there is no valid screen and when the window height is zero just use
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// the cursor line.
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if (!screen_valid(TRUE) || curwin->w_height == 0)
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{
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check_cursor_lnum();
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curwin->w_topline = curwin->w_cursor.lnum;
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curwin->w_botline = curwin->w_topline;
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curwin->w_scbind_pos = 1;
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return;
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}
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check_cursor_moved(curwin);
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if (curwin->w_valid & VALID_TOPLINE)
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return;
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// When dragging with the mouse, don't scroll that quickly
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if (mouse_dragging > 0)
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*so_ptr = mouse_dragging - 1;
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linenr_T old_topline = curwin->w_topline;
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#ifdef FEAT_DIFF
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int old_topfill = curwin->w_topfill;
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#endif
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/*
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* If the buffer is empty, always set topline to 1.
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*/
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if (BUFEMPTY()) // special case - file is empty
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{
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if (curwin->w_topline != 1)
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redraw_later(UPD_NOT_VALID);
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curwin->w_topline = 1;
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curwin->w_botline = 2;
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curwin->w_skipcol = 0;
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curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
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curwin->w_scbind_pos = 1;
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}
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/*
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* If the cursor is above or near the top of the window, scroll the window
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* to show the line the cursor is in, with 'scrolloff' context.
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*/
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else
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{
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if (curwin->w_topline > 1 || curwin->w_skipcol > 0)
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{
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// If the cursor is above topline, scrolling is always needed.
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// If the cursor is far below topline and there is no folding,
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// scrolling down is never needed.
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if (curwin->w_cursor.lnum < curwin->w_topline)
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check_topline = TRUE;
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else if (check_top_offset())
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check_topline = TRUE;
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else if (curwin->w_skipcol > 0
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&& curwin->w_cursor.lnum == curwin->w_topline)
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{
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colnr_T vcol;
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int overlap;
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// Check that the cursor position is visible. Add columns for
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// the marker displayed in the top-left if needed.
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getvvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL);
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overlap = sms_marker_overlap(curwin, -1);
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if (curwin->w_skipcol + overlap > vcol)
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check_topline = TRUE;
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}
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}
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#ifdef FEAT_DIFF
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// Check if there are more filler lines than allowed.
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if (!check_topline && curwin->w_topfill > diff_check_fill(curwin,
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curwin->w_topline))
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check_topline = TRUE;
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#endif
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if (check_topline)
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{
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halfheight = curwin->w_height / 2 - 1;
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if (halfheight < 2)
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halfheight = 2;
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#ifdef FEAT_FOLDING
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if (hasAnyFolding(curwin))
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{
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// Count the number of logical lines between the cursor and
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// topline + scrolloff (approximation of how much will be
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// scrolled).
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n = 0;
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for (lnum = curwin->w_cursor.lnum;
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lnum < curwin->w_topline + *so_ptr; ++lnum)
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{
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++n;
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// stop at end of file or when we know we are far off
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if (lnum >= curbuf->b_ml.ml_line_count || n >= halfheight)
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break;
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(void)hasFolding(lnum, NULL, &lnum);
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}
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}
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else
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#endif
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n = curwin->w_topline + *so_ptr - curwin->w_cursor.lnum;
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// If we weren't very close to begin with, we scroll to put the
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// cursor in the middle of the window. Otherwise put the cursor
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// near the top of the window.
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if (n >= halfheight)
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scroll_cursor_halfway(FALSE, FALSE);
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else
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{
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scroll_cursor_top(scrolljump_value(), FALSE);
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check_botline = TRUE;
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}
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}
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else
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{
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#ifdef FEAT_FOLDING
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// Make sure topline is the first line of a fold.
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(void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
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#endif
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check_botline = TRUE;
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}
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}
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/*
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* If the cursor is below the bottom of the window, scroll the window
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* to put the cursor on the window.
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* When w_botline is invalid, recompute it first, to avoid a redraw later.
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* If w_botline was approximated, we might need a redraw later in a few
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* cases, but we don't want to spend (a lot of) time recomputing w_botline
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* for every small change.
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*/
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if (check_botline)
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{
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if (!(curwin->w_valid & VALID_BOTLINE_AP))
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validate_botline();
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if (curwin->w_botline <= curbuf->b_ml.ml_line_count)
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{
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if (curwin->w_cursor.lnum < curwin->w_botline)
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{
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if (((long)curwin->w_cursor.lnum
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>= (long)curwin->w_botline - *so_ptr
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#ifdef FEAT_FOLDING
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|| hasAnyFolding(curwin)
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#endif
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))
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{
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lineoff_T loff;
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// Cursor is (a few lines) above botline, check if there are
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// 'scrolloff' window lines below the cursor. If not, need to
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// scroll.
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n = curwin->w_empty_rows;
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loff.lnum = curwin->w_cursor.lnum;
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#ifdef FEAT_FOLDING
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// In a fold go to its last line.
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(void)hasFolding(loff.lnum, NULL, &loff.lnum);
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#endif
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#ifdef FEAT_DIFF
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loff.fill = 0;
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n += curwin->w_filler_rows;
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#endif
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loff.height = 0;
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while (loff.lnum < curwin->w_botline
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#ifdef FEAT_DIFF
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&& (loff.lnum + 1 < curwin->w_botline || loff.fill == 0)
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#endif
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)
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{
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n += loff.height;
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if (n >= *so_ptr)
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break;
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botline_forw(&loff);
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}
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if (n >= *so_ptr)
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// sufficient context, no need to scroll
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check_botline = FALSE;
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}
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else
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// sufficient context, no need to scroll
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check_botline = FALSE;
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}
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if (check_botline)
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{
|
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#ifdef FEAT_FOLDING
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if (hasAnyFolding(curwin))
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{
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// Count the number of logical lines between the cursor and
|
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// botline - scrolloff (approximation of how much will be
|
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// scrolled).
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line_count = 0;
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for (lnum = curwin->w_cursor.lnum;
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lnum >= curwin->w_botline - *so_ptr; --lnum)
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{
|
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++line_count;
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// stop at end of file or when we know we are far off
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if (lnum <= 0 || line_count > curwin->w_height + 1)
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break;
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(void)hasFolding(lnum, &lnum, NULL);
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}
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}
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else
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#endif
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line_count = curwin->w_cursor.lnum - curwin->w_botline
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+ 1 + *so_ptr;
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if (line_count <= curwin->w_height + 1)
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scroll_cursor_bot(scrolljump_value(), FALSE);
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else
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scroll_cursor_halfway(FALSE, FALSE);
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}
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}
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}
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curwin->w_valid |= VALID_TOPLINE;
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/*
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* Need to redraw when topline changed.
|
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*/
|
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if (curwin->w_topline != old_topline
|
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#ifdef FEAT_DIFF
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|| curwin->w_topfill != old_topfill
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#endif
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)
|
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{
|
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dollar_vcol = -1;
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redraw_later(UPD_VALID);
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// When 'smoothscroll' is not set, should reset w_skipcol.
|
|
if (!curwin->w_p_sms)
|
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reset_skipcol();
|
|
else if (curwin->w_skipcol != 0)
|
|
redraw_later(UPD_SOME_VALID);
|
|
|
|
// May need to set w_skipcol when cursor in w_topline.
|
|
if (curwin->w_cursor.lnum == curwin->w_topline)
|
|
validate_cursor();
|
|
}
|
|
|
|
*so_ptr = save_so;
|
|
}
|
|
|
|
/*
|
|
* Return the scrolljump value to use for the current window.
|
|
* When 'scrolljump' is positive use it as-is.
|
|
* When 'scrolljump' is negative use it as a percentage of the window height.
|
|
*/
|
|
static int
|
|
scrolljump_value(void)
|
|
{
|
|
if (p_sj >= 0)
|
|
return (int)p_sj;
|
|
return (curwin->w_height * -p_sj) / 100;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE when there are not 'scrolloff' lines above the cursor for the
|
|
* current window.
|
|
*/
|
|
static int
|
|
check_top_offset(void)
|
|
{
|
|
lineoff_T loff;
|
|
int n;
|
|
long so = get_scrolloff_value();
|
|
|
|
if (curwin->w_cursor.lnum < curwin->w_topline + so
|
|
#ifdef FEAT_FOLDING
|
|
|| hasAnyFolding(curwin)
|
|
#endif
|
|
)
|
|
{
|
|
loff.lnum = curwin->w_cursor.lnum;
|
|
#ifdef FEAT_DIFF
|
|
loff.fill = 0;
|
|
n = curwin->w_topfill; // always have this context
|
|
#else
|
|
n = 0;
|
|
#endif
|
|
// Count the visible screen lines above the cursor line.
|
|
while (n < so)
|
|
{
|
|
topline_back(&loff);
|
|
// Stop when included a line above the window.
|
|
if (loff.lnum < curwin->w_topline
|
|
#ifdef FEAT_DIFF
|
|
|| (loff.lnum == curwin->w_topline && loff.fill > 0)
|
|
#endif
|
|
)
|
|
break;
|
|
n += loff.height;
|
|
}
|
|
if (n < so)
|
|
return TRUE;
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* Update w_curswant.
|
|
*/
|
|
void
|
|
update_curswant_force(void)
|
|
{
|
|
validate_virtcol();
|
|
curwin->w_curswant = curwin->w_virtcol
|
|
#ifdef FEAT_PROP_POPUP
|
|
- curwin->w_virtcol_first_char
|
|
#endif
|
|
;
|
|
curwin->w_set_curswant = FALSE;
|
|
}
|
|
|
|
/*
|
|
* Update w_curswant if w_set_curswant is set.
|
|
*/
|
|
void
|
|
update_curswant(void)
|
|
{
|
|
if (curwin->w_set_curswant)
|
|
update_curswant_force();
|
|
}
|
|
|
|
/*
|
|
* Check if the cursor has moved. Set the w_valid flag accordingly.
|
|
*/
|
|
void
|
|
check_cursor_moved(win_T *wp)
|
|
{
|
|
if (wp->w_cursor.lnum != wp->w_valid_cursor.lnum)
|
|
{
|
|
wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
|
|
|VALID_CHEIGHT|VALID_CROW|VALID_TOPLINE
|
|
|VALID_BOTLINE|VALID_BOTLINE_AP);
|
|
wp->w_valid_cursor = wp->w_cursor;
|
|
wp->w_valid_leftcol = wp->w_leftcol;
|
|
wp->w_valid_skipcol = wp->w_skipcol;
|
|
}
|
|
else if (wp->w_skipcol != wp->w_valid_skipcol)
|
|
{
|
|
wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
|
|
|VALID_CHEIGHT|VALID_CROW
|
|
|VALID_BOTLINE|VALID_BOTLINE_AP);
|
|
wp->w_valid_cursor = wp->w_cursor;
|
|
wp->w_valid_leftcol = wp->w_leftcol;
|
|
wp->w_valid_skipcol = wp->w_skipcol;
|
|
}
|
|
else if (wp->w_cursor.col != wp->w_valid_cursor.col
|
|
|| wp->w_leftcol != wp->w_valid_leftcol
|
|
|| wp->w_cursor.coladd != wp->w_valid_cursor.coladd)
|
|
{
|
|
wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL);
|
|
wp->w_valid_cursor.col = wp->w_cursor.col;
|
|
wp->w_valid_leftcol = wp->w_leftcol;
|
|
wp->w_valid_cursor.coladd = wp->w_cursor.coladd;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Call this function when some window settings have changed, which require
|
|
* the cursor position, botline and topline to be recomputed and the window to
|
|
* be redrawn. E.g, when changing the 'wrap' option or folding.
|
|
*/
|
|
void
|
|
changed_window_setting(void)
|
|
{
|
|
changed_window_setting_win(curwin);
|
|
}
|
|
|
|
void
|
|
changed_window_setting_win(win_T *wp)
|
|
{
|
|
wp->w_lines_valid = 0;
|
|
changed_line_abv_curs_win(wp);
|
|
wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP|VALID_TOPLINE);
|
|
redraw_win_later(wp, UPD_NOT_VALID);
|
|
}
|
|
|
|
#if defined(FEAT_PROP_POPUP) || defined(PROTO)
|
|
/*
|
|
* Call changed_window_setting_win() for every window containing "buf".
|
|
*/
|
|
void
|
|
changed_window_setting_buf(buf_T *buf)
|
|
{
|
|
tabpage_T *tp;
|
|
win_T *wp;
|
|
|
|
FOR_ALL_TAB_WINDOWS(tp, wp)
|
|
if (wp->w_buffer == buf)
|
|
changed_window_setting_win(wp);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Call changed_window_setting_win() for every window.
|
|
*/
|
|
void
|
|
changed_window_setting_all(void)
|
|
{
|
|
tabpage_T *tp;
|
|
win_T *wp;
|
|
|
|
FOR_ALL_TAB_WINDOWS(tp, wp)
|
|
changed_window_setting_win(wp);
|
|
}
|
|
|
|
/*
|
|
* Set wp->w_topline to a certain number.
|
|
*/
|
|
void
|
|
set_topline(win_T *wp, linenr_T lnum)
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
linenr_T prev_topline = wp->w_topline;
|
|
#endif
|
|
|
|
#ifdef FEAT_FOLDING
|
|
// go to first of folded lines
|
|
(void)hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
|
|
#endif
|
|
// Approximate the value of w_botline
|
|
wp->w_botline += lnum - wp->w_topline;
|
|
if (wp->w_botline > wp->w_buffer->b_ml.ml_line_count + 1)
|
|
wp->w_botline = wp->w_buffer->b_ml.ml_line_count + 1;
|
|
wp->w_topline = lnum;
|
|
wp->w_topline_was_set = TRUE;
|
|
#ifdef FEAT_DIFF
|
|
if (lnum != prev_topline)
|
|
// Keep the filler lines when the topline didn't change.
|
|
wp->w_topfill = 0;
|
|
#endif
|
|
wp->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_TOPLINE);
|
|
// Don't set VALID_TOPLINE here, 'scrolloff' needs to be checked.
|
|
redraw_later(UPD_VALID);
|
|
}
|
|
|
|
/*
|
|
* Call this function when the length of the cursor line (in screen
|
|
* characters) has changed, and the change is before the cursor.
|
|
* If the line length changed the number of screen lines might change,
|
|
* requiring updating w_topline. That may also invalidate w_crow.
|
|
* Need to take care of w_botline separately!
|
|
*/
|
|
void
|
|
changed_cline_bef_curs(void)
|
|
{
|
|
curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
|
|
|VALID_CHEIGHT|VALID_TOPLINE);
|
|
}
|
|
|
|
void
|
|
changed_cline_bef_curs_win(win_T *wp)
|
|
{
|
|
wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
|
|
|VALID_CHEIGHT|VALID_TOPLINE);
|
|
}
|
|
|
|
/*
|
|
* Call this function when the length of a line (in screen characters) above
|
|
* the cursor have changed.
|
|
* Need to take care of w_botline separately!
|
|
*/
|
|
void
|
|
changed_line_abv_curs(void)
|
|
{
|
|
curwin->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
|
|
|VALID_CHEIGHT|VALID_TOPLINE);
|
|
}
|
|
|
|
void
|
|
changed_line_abv_curs_win(win_T *wp)
|
|
{
|
|
wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL|VALID_CROW
|
|
|VALID_CHEIGHT|VALID_TOPLINE);
|
|
}
|
|
|
|
#if defined(FEAT_PROP_POPUP) || defined(PROTO)
|
|
/*
|
|
* Display of line has changed for "buf", invalidate cursor position and
|
|
* w_botline.
|
|
*/
|
|
void
|
|
changed_line_display_buf(buf_T *buf)
|
|
{
|
|
win_T *wp;
|
|
|
|
FOR_ALL_WINDOWS(wp)
|
|
if (wp->w_buffer == buf)
|
|
wp->w_valid &= ~(VALID_WROW|VALID_WCOL|VALID_VIRTCOL
|
|
|VALID_CROW|VALID_CHEIGHT
|
|
|VALID_TOPLINE|VALID_BOTLINE|VALID_BOTLINE_AP);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Make sure the value of curwin->w_botline is valid.
|
|
*/
|
|
void
|
|
validate_botline(void)
|
|
{
|
|
validate_botline_win(curwin);
|
|
}
|
|
|
|
/*
|
|
* Make sure the value of wp->w_botline is valid.
|
|
*/
|
|
void
|
|
validate_botline_win(win_T *wp)
|
|
{
|
|
if (!(wp->w_valid & VALID_BOTLINE))
|
|
comp_botline(wp);
|
|
}
|
|
|
|
/*
|
|
* Mark curwin->w_botline as invalid (because of some change in the buffer).
|
|
*/
|
|
void
|
|
invalidate_botline(void)
|
|
{
|
|
curwin->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
|
|
}
|
|
|
|
void
|
|
invalidate_botline_win(win_T *wp)
|
|
{
|
|
wp->w_valid &= ~(VALID_BOTLINE|VALID_BOTLINE_AP);
|
|
}
|
|
|
|
void
|
|
approximate_botline_win(
|
|
win_T *wp)
|
|
{
|
|
wp->w_valid &= ~VALID_BOTLINE;
|
|
}
|
|
|
|
/*
|
|
* Return TRUE if curwin->w_wrow and curwin->w_wcol are valid.
|
|
*/
|
|
int
|
|
cursor_valid(void)
|
|
{
|
|
check_cursor_moved(curwin);
|
|
return ((curwin->w_valid & (VALID_WROW|VALID_WCOL)) ==
|
|
(VALID_WROW|VALID_WCOL));
|
|
}
|
|
|
|
/*
|
|
* Validate cursor position. Makes sure w_wrow and w_wcol are valid.
|
|
* w_topline must be valid, you may need to call update_topline() first!
|
|
*/
|
|
void
|
|
validate_cursor(void)
|
|
{
|
|
check_cursor_lnum();
|
|
check_cursor_moved(curwin);
|
|
if ((curwin->w_valid & (VALID_WCOL|VALID_WROW)) != (VALID_WCOL|VALID_WROW))
|
|
curs_columns(TRUE);
|
|
}
|
|
|
|
#if defined(FEAT_GUI) || defined(PROTO)
|
|
/*
|
|
* validate w_cline_row.
|
|
*/
|
|
void
|
|
validate_cline_row(void)
|
|
{
|
|
/*
|
|
* First make sure that w_topline is valid (after moving the cursor).
|
|
*/
|
|
update_topline();
|
|
check_cursor_moved(curwin);
|
|
if (!(curwin->w_valid & VALID_CROW))
|
|
curs_rows(curwin);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Compute wp->w_cline_row and wp->w_cline_height, based on the current value
|
|
* of wp->w_topline.
|
|
*/
|
|
static void
|
|
curs_rows(win_T *wp)
|
|
{
|
|
linenr_T lnum;
|
|
int i;
|
|
int all_invalid;
|
|
int valid;
|
|
#ifdef FEAT_FOLDING
|
|
long fold_count;
|
|
#endif
|
|
|
|
// Check if wp->w_lines[].wl_size is invalid
|
|
all_invalid = (!redrawing()
|
|
|| wp->w_lines_valid == 0
|
|
|| wp->w_lines[0].wl_lnum > wp->w_topline);
|
|
i = 0;
|
|
wp->w_cline_row = 0;
|
|
for (lnum = wp->w_topline; lnum < wp->w_cursor.lnum; ++i)
|
|
{
|
|
valid = FALSE;
|
|
if (!all_invalid && i < wp->w_lines_valid)
|
|
{
|
|
if (wp->w_lines[i].wl_lnum < lnum || !wp->w_lines[i].wl_valid)
|
|
continue; // skip changed or deleted lines
|
|
if (wp->w_lines[i].wl_lnum == lnum)
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
// Check for newly inserted lines below this row, in which
|
|
// case we need to check for folded lines.
|
|
if (!wp->w_buffer->b_mod_set
|
|
|| wp->w_lines[i].wl_lastlnum < wp->w_cursor.lnum
|
|
|| wp->w_buffer->b_mod_top
|
|
> wp->w_lines[i].wl_lastlnum + 1)
|
|
#endif
|
|
valid = TRUE;
|
|
}
|
|
else if (wp->w_lines[i].wl_lnum > lnum)
|
|
--i; // hold at inserted lines
|
|
}
|
|
if (valid
|
|
&& (lnum != wp->w_topline || (wp->w_skipcol == 0
|
|
#ifdef FEAT_DIFF
|
|
&& !wp->w_p_diff
|
|
#endif
|
|
)))
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
lnum = wp->w_lines[i].wl_lastlnum + 1;
|
|
// Cursor inside folded lines, don't count this row
|
|
if (lnum > wp->w_cursor.lnum)
|
|
break;
|
|
#else
|
|
++lnum;
|
|
#endif
|
|
wp->w_cline_row += wp->w_lines[i].wl_size;
|
|
}
|
|
else
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
fold_count = foldedCount(wp, lnum, NULL);
|
|
if (fold_count)
|
|
{
|
|
lnum += fold_count;
|
|
if (lnum > wp->w_cursor.lnum)
|
|
break;
|
|
++wp->w_cline_row;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
wp->w_cline_row += plines_correct_topline(wp, lnum, TRUE);
|
|
++lnum;
|
|
}
|
|
}
|
|
}
|
|
|
|
check_cursor_moved(wp);
|
|
if (!(wp->w_valid & VALID_CHEIGHT))
|
|
{
|
|
if (all_invalid
|
|
|| i == wp->w_lines_valid
|
|
|| (i < wp->w_lines_valid
|
|
&& (!wp->w_lines[i].wl_valid
|
|
|| wp->w_lines[i].wl_lnum != wp->w_cursor.lnum)))
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
if (wp->w_cursor.lnum == wp->w_topline)
|
|
wp->w_cline_height = plines_win_nofill(wp, wp->w_cursor.lnum,
|
|
TRUE) + wp->w_topfill;
|
|
else
|
|
#endif
|
|
wp->w_cline_height = plines_win(wp, wp->w_cursor.lnum, TRUE);
|
|
#ifdef FEAT_FOLDING
|
|
wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
|
|
NULL, NULL, TRUE, NULL);
|
|
#endif
|
|
}
|
|
else if (i > wp->w_lines_valid)
|
|
{
|
|
// a line that is too long to fit on the last screen line
|
|
wp->w_cline_height = 0;
|
|
#ifdef FEAT_FOLDING
|
|
wp->w_cline_folded = hasFoldingWin(wp, wp->w_cursor.lnum,
|
|
NULL, NULL, TRUE, NULL);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
wp->w_cline_height = wp->w_lines[i].wl_size;
|
|
#ifdef FEAT_FOLDING
|
|
wp->w_cline_folded = wp->w_lines[i].wl_folded;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
redraw_for_cursorline(curwin);
|
|
wp->w_valid |= VALID_CROW|VALID_CHEIGHT;
|
|
}
|
|
|
|
/*
|
|
* Validate curwin->w_virtcol only.
|
|
*/
|
|
void
|
|
validate_virtcol(void)
|
|
{
|
|
validate_virtcol_win(curwin);
|
|
}
|
|
|
|
/*
|
|
* Validate wp->w_virtcol only.
|
|
*/
|
|
void
|
|
validate_virtcol_win(win_T *wp)
|
|
{
|
|
check_cursor_moved(wp);
|
|
|
|
if (wp->w_valid & VALID_VIRTCOL)
|
|
return;
|
|
|
|
#ifdef FEAT_PROP_POPUP
|
|
wp->w_virtcol_first_char = 0;
|
|
#endif
|
|
getvvcol(wp, &wp->w_cursor, NULL, &(wp->w_virtcol), NULL);
|
|
#ifdef FEAT_SYN_HL
|
|
redraw_for_cursorcolumn(wp);
|
|
#endif
|
|
wp->w_valid |= VALID_VIRTCOL;
|
|
}
|
|
|
|
/*
|
|
* Validate curwin->w_cline_height only.
|
|
*/
|
|
void
|
|
validate_cheight(void)
|
|
{
|
|
check_cursor_moved(curwin);
|
|
|
|
if (curwin->w_valid & VALID_CHEIGHT)
|
|
return;
|
|
|
|
#ifdef FEAT_DIFF
|
|
if (curwin->w_cursor.lnum == curwin->w_topline)
|
|
curwin->w_cline_height = plines_nofill(curwin->w_cursor.lnum)
|
|
+ curwin->w_topfill;
|
|
else
|
|
#endif
|
|
curwin->w_cline_height = plines(curwin->w_cursor.lnum);
|
|
#ifdef FEAT_FOLDING
|
|
curwin->w_cline_folded = hasFolding(curwin->w_cursor.lnum, NULL, NULL);
|
|
#endif
|
|
curwin->w_valid |= VALID_CHEIGHT;
|
|
}
|
|
|
|
/*
|
|
* Validate w_wcol and w_virtcol only.
|
|
*/
|
|
void
|
|
validate_cursor_col(void)
|
|
{
|
|
colnr_T off;
|
|
colnr_T col;
|
|
int width;
|
|
|
|
validate_virtcol();
|
|
|
|
if (curwin->w_valid & VALID_WCOL)
|
|
return;
|
|
|
|
col = curwin->w_virtcol;
|
|
off = curwin_col_off();
|
|
col += off;
|
|
width = curwin->w_width - off + curwin_col_off2();
|
|
|
|
// long line wrapping, adjust curwin->w_wrow
|
|
if (curwin->w_p_wrap
|
|
&& col >= (colnr_T)curwin->w_width
|
|
&& width > 0)
|
|
// use same formula as what is used in curs_columns()
|
|
col -= ((col - curwin->w_width) / width + 1) * width;
|
|
if (col > (int)curwin->w_leftcol)
|
|
col -= curwin->w_leftcol;
|
|
else
|
|
col = 0;
|
|
curwin->w_wcol = col;
|
|
|
|
curwin->w_valid |= VALID_WCOL;
|
|
#ifdef FEAT_PROP_POPUP
|
|
curwin->w_flags &= ~WFLAG_WCOL_OFF_ADDED;
|
|
#endif
|
|
}
|
|
|
|
/*
|
|
* Compute offset of a window, occupied by absolute or relative line number,
|
|
* fold column and sign column (these don't move when scrolling horizontally).
|
|
*/
|
|
int
|
|
win_col_off(win_T *wp)
|
|
{
|
|
return (((wp->w_p_nu || wp->w_p_rnu) ? number_width(wp) + 1 : 0)
|
|
+ (wp != cmdwin_win ? 0 : 1)
|
|
#ifdef FEAT_FOLDING
|
|
+ wp->w_p_fdc
|
|
#endif
|
|
#ifdef FEAT_SIGNS
|
|
+ (signcolumn_on(wp) ? 2 : 0)
|
|
#endif
|
|
);
|
|
}
|
|
|
|
int
|
|
curwin_col_off(void)
|
|
{
|
|
return win_col_off(curwin);
|
|
}
|
|
|
|
/*
|
|
* Return the difference in column offset for the second screen line of a
|
|
* wrapped line. It's positive if 'number' or 'relativenumber' is on and 'n'
|
|
* is in 'cpoptions'.
|
|
*/
|
|
int
|
|
win_col_off2(win_T *wp)
|
|
{
|
|
if ((wp->w_p_nu || wp->w_p_rnu) && vim_strchr(p_cpo, CPO_NUMCOL) != NULL)
|
|
return number_width(wp) + 1;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
curwin_col_off2(void)
|
|
{
|
|
return win_col_off2(curwin);
|
|
}
|
|
|
|
/*
|
|
* Compute curwin->w_wcol and curwin->w_virtcol.
|
|
* Also updates curwin->w_wrow and curwin->w_cline_row.
|
|
* Also updates curwin->w_leftcol.
|
|
*/
|
|
void
|
|
curs_columns(
|
|
int may_scroll) // when TRUE, may scroll horizontally
|
|
{
|
|
int diff;
|
|
int extra; // offset for first screen line
|
|
int off_left, off_right;
|
|
int n;
|
|
int p_lines;
|
|
int width1; // text width for first screen line
|
|
int width2 = 0; // text width for second and later screen line
|
|
int new_leftcol;
|
|
colnr_T startcol;
|
|
colnr_T endcol;
|
|
colnr_T prev_skipcol;
|
|
long so = get_scrolloff_value();
|
|
long siso = get_sidescrolloff_value();
|
|
int did_sub_skipcol = FALSE;
|
|
|
|
/*
|
|
* First make sure that w_topline is valid (after moving the cursor).
|
|
*/
|
|
update_topline();
|
|
|
|
/*
|
|
* Next make sure that w_cline_row is valid.
|
|
*/
|
|
if (!(curwin->w_valid & VALID_CROW))
|
|
curs_rows(curwin);
|
|
|
|
#ifdef FEAT_PROP_POPUP
|
|
// will be set by getvvcol() but not reset
|
|
curwin->w_virtcol_first_char = 0;
|
|
#endif
|
|
|
|
/*
|
|
* Compute the number of virtual columns.
|
|
*/
|
|
#ifdef FEAT_FOLDING
|
|
if (curwin->w_cline_folded)
|
|
// In a folded line the cursor is always in the first column
|
|
startcol = curwin->w_virtcol = endcol = curwin->w_leftcol;
|
|
else
|
|
#endif
|
|
getvvcol(curwin, &curwin->w_cursor,
|
|
&startcol, &(curwin->w_virtcol), &endcol);
|
|
|
|
// remove '$' from change command when cursor moves onto it
|
|
if (startcol > dollar_vcol)
|
|
dollar_vcol = -1;
|
|
|
|
extra = curwin_col_off();
|
|
curwin->w_wcol = curwin->w_virtcol + extra;
|
|
endcol += extra;
|
|
|
|
/*
|
|
* Now compute w_wrow, counting screen lines from w_cline_row.
|
|
*/
|
|
curwin->w_wrow = curwin->w_cline_row;
|
|
|
|
width1 = curwin->w_width - extra;
|
|
if (width1 <= 0)
|
|
{
|
|
// No room for text, put cursor in last char of window.
|
|
// If not wrapping, the last non-empty line.
|
|
curwin->w_wcol = curwin->w_width - 1;
|
|
if (curwin->w_p_wrap)
|
|
curwin->w_wrow = curwin->w_height - 1;
|
|
else
|
|
curwin->w_wrow = curwin->w_height - 1 - curwin->w_empty_rows;
|
|
}
|
|
else if (curwin->w_p_wrap && curwin->w_width != 0)
|
|
{
|
|
width2 = width1 + curwin_col_off2();
|
|
|
|
// skip columns that are not visible
|
|
if (curwin->w_cursor.lnum == curwin->w_topline
|
|
&& curwin->w_skipcol > 0
|
|
&& curwin->w_wcol >= curwin->w_skipcol)
|
|
{
|
|
// Deduct by multiples of width2. This allows the long line
|
|
// wrapping formula below to correctly calculate the w_wcol value
|
|
// when wrapping.
|
|
if (curwin->w_skipcol <= width1)
|
|
curwin->w_wcol -= width2;
|
|
else
|
|
curwin->w_wcol -= width2
|
|
* (((curwin->w_skipcol - width1) / width2) + 1);
|
|
|
|
did_sub_skipcol = TRUE;
|
|
}
|
|
|
|
// long line wrapping, adjust curwin->w_wrow
|
|
if (curwin->w_wcol >= curwin->w_width)
|
|
{
|
|
// this same formula is used in validate_cursor_col()
|
|
n = (curwin->w_wcol - curwin->w_width) / width2 + 1;
|
|
curwin->w_wcol -= n * width2;
|
|
curwin->w_wrow += n;
|
|
}
|
|
}
|
|
|
|
// No line wrapping: compute curwin->w_leftcol if scrolling is on and line
|
|
// is not folded.
|
|
// If scrolling is off, curwin->w_leftcol is assumed to be 0
|
|
else if (may_scroll
|
|
#ifdef FEAT_FOLDING
|
|
&& !curwin->w_cline_folded
|
|
#endif
|
|
)
|
|
{
|
|
#ifdef FEAT_PROP_POPUP
|
|
if (curwin->w_virtcol_first_char > 0)
|
|
{
|
|
int cols = (curwin->w_width - extra);
|
|
int rows = cols > 0 ? curwin->w_virtcol_first_char / cols : 1;
|
|
|
|
// each "above" text prop shifts the text one row down
|
|
curwin->w_wrow += rows;
|
|
curwin->w_wcol -= rows * cols;
|
|
endcol -= rows * cols;
|
|
curwin->w_cline_height = rows + 1;
|
|
}
|
|
#endif
|
|
/*
|
|
* If Cursor is left of the screen, scroll rightwards.
|
|
* If Cursor is right of the screen, scroll leftwards
|
|
* If we get closer to the edge than 'sidescrolloff', scroll a little
|
|
* extra
|
|
*/
|
|
off_left = (int)startcol - (int)curwin->w_leftcol - siso;
|
|
off_right = (int)endcol - (int)(curwin->w_leftcol + curwin->w_width
|
|
- siso) + 1;
|
|
if (off_left < 0 || off_right > 0)
|
|
{
|
|
if (off_left < 0)
|
|
diff = -off_left;
|
|
else
|
|
diff = off_right;
|
|
|
|
// When far off or not enough room on either side, put cursor in
|
|
// middle of window.
|
|
if (p_ss == 0 || diff >= width1 / 2 || off_right >= off_left)
|
|
new_leftcol = curwin->w_wcol - extra - width1 / 2;
|
|
else
|
|
{
|
|
if (diff < p_ss)
|
|
diff = p_ss;
|
|
if (off_left < 0)
|
|
new_leftcol = curwin->w_leftcol - diff;
|
|
else
|
|
new_leftcol = curwin->w_leftcol + diff;
|
|
}
|
|
if (new_leftcol < 0)
|
|
new_leftcol = 0;
|
|
if (new_leftcol != (int)curwin->w_leftcol)
|
|
{
|
|
curwin->w_leftcol = new_leftcol;
|
|
// screen has to be redrawn with new curwin->w_leftcol
|
|
redraw_later(UPD_NOT_VALID);
|
|
}
|
|
}
|
|
curwin->w_wcol -= curwin->w_leftcol;
|
|
}
|
|
else if (curwin->w_wcol > (int)curwin->w_leftcol)
|
|
curwin->w_wcol -= curwin->w_leftcol;
|
|
else
|
|
curwin->w_wcol = 0;
|
|
|
|
#ifdef FEAT_DIFF
|
|
// Skip over filler lines. At the top use w_topfill, there
|
|
// may be some filler lines above the window.
|
|
if (curwin->w_cursor.lnum == curwin->w_topline)
|
|
curwin->w_wrow += curwin->w_topfill;
|
|
else
|
|
curwin->w_wrow += diff_check_fill(curwin, curwin->w_cursor.lnum);
|
|
#endif
|
|
|
|
prev_skipcol = curwin->w_skipcol;
|
|
|
|
p_lines = 0;
|
|
|
|
if ((curwin->w_wrow >= curwin->w_height
|
|
|| ((prev_skipcol > 0
|
|
|| curwin->w_wrow + so >= curwin->w_height)
|
|
&& (p_lines =
|
|
#ifdef FEAT_DIFF
|
|
plines_win_nofill
|
|
#else
|
|
plines_win
|
|
#endif
|
|
(curwin, curwin->w_cursor.lnum, FALSE))
|
|
- 1 >= curwin->w_height))
|
|
&& curwin->w_height != 0
|
|
&& curwin->w_cursor.lnum == curwin->w_topline
|
|
&& width2 > 0
|
|
&& curwin->w_width != 0)
|
|
{
|
|
// Cursor past end of screen. Happens with a single line that does
|
|
// not fit on screen. Find a skipcol to show the text around the
|
|
// cursor. Avoid scrolling all the time. compute value of "extra":
|
|
// 1: Less than 'scrolloff' lines above
|
|
// 2: Less than 'scrolloff' lines below
|
|
// 3: both of them
|
|
extra = 0;
|
|
if (curwin->w_skipcol + so * width2 > curwin->w_virtcol)
|
|
extra = 1;
|
|
// Compute last display line of the buffer line that we want at the
|
|
// bottom of the window.
|
|
if (p_lines == 0)
|
|
p_lines = plines_win(curwin, curwin->w_cursor.lnum, FALSE);
|
|
--p_lines;
|
|
if (p_lines > curwin->w_wrow + so)
|
|
n = curwin->w_wrow + so;
|
|
else
|
|
n = p_lines;
|
|
if ((colnr_T)n >= curwin->w_height + curwin->w_skipcol / width2 - so)
|
|
extra += 2;
|
|
|
|
if (extra == 3 || curwin->w_height <= so * 2)
|
|
{
|
|
// not enough room for 'scrolloff', put cursor in the middle
|
|
n = curwin->w_virtcol / width2;
|
|
if (n > curwin->w_height / 2)
|
|
n -= curwin->w_height / 2;
|
|
else
|
|
n = 0;
|
|
// don't skip more than necessary
|
|
if (n > p_lines - curwin->w_height + 1)
|
|
n = p_lines - curwin->w_height + 1;
|
|
if (n > 0)
|
|
curwin->w_skipcol = width1 + (n - 1) * width2;
|
|
else
|
|
curwin->w_skipcol = 0;
|
|
}
|
|
else if (extra == 1)
|
|
{
|
|
// less than 'scrolloff' lines above, decrease skipcol
|
|
extra = (curwin->w_skipcol + so * width2 - curwin->w_virtcol
|
|
+ width2 - 1) / width2;
|
|
if (extra > 0)
|
|
{
|
|
if ((colnr_T)(extra * width2) > curwin->w_skipcol)
|
|
extra = curwin->w_skipcol / width2;
|
|
curwin->w_skipcol -= extra * width2;
|
|
}
|
|
}
|
|
else if (extra == 2)
|
|
{
|
|
// less than 'scrolloff' lines below, increase skipcol
|
|
endcol = (n - curwin->w_height + 1) * width2;
|
|
while (endcol > curwin->w_virtcol)
|
|
endcol -= width2;
|
|
if (endcol > curwin->w_skipcol)
|
|
curwin->w_skipcol = endcol;
|
|
}
|
|
|
|
// adjust w_wrow for the changed w_skipcol
|
|
if (did_sub_skipcol)
|
|
curwin->w_wrow -= (curwin->w_skipcol - prev_skipcol) / width2;
|
|
else
|
|
curwin->w_wrow -= curwin->w_skipcol / width2;
|
|
|
|
if (curwin->w_wrow >= curwin->w_height)
|
|
{
|
|
// small window, make sure cursor is in it
|
|
extra = curwin->w_wrow - curwin->w_height + 1;
|
|
curwin->w_skipcol += extra * width2;
|
|
curwin->w_wrow -= extra;
|
|
}
|
|
|
|
extra = ((int)prev_skipcol - (int)curwin->w_skipcol) / width2;
|
|
if (extra > 0)
|
|
win_ins_lines(curwin, 0, extra, FALSE, FALSE);
|
|
else if (extra < 0)
|
|
win_del_lines(curwin, 0, -extra, FALSE, FALSE, 0);
|
|
}
|
|
else if (!curwin->w_p_sms)
|
|
curwin->w_skipcol = 0;
|
|
if (prev_skipcol != curwin->w_skipcol)
|
|
redraw_later(UPD_SOME_VALID);
|
|
|
|
#ifdef FEAT_SYN_HL
|
|
redraw_for_cursorcolumn(curwin);
|
|
#endif
|
|
#if defined(FEAT_PROP_POPUP) && defined(FEAT_TERMINAL)
|
|
if (popup_is_popup(curwin) && curbuf->b_term != NULL)
|
|
{
|
|
curwin->w_wrow += popup_top_extra(curwin);
|
|
curwin->w_wcol += popup_left_extra(curwin);
|
|
curwin->w_flags |= WFLAG_WCOL_OFF_ADDED + WFLAG_WROW_OFF_ADDED;
|
|
}
|
|
else
|
|
curwin->w_flags &= ~(WFLAG_WCOL_OFF_ADDED + WFLAG_WROW_OFF_ADDED);
|
|
#endif
|
|
|
|
// now w_leftcol and w_skipcol are valid, avoid check_cursor_moved()
|
|
// thinking otherwise
|
|
curwin->w_valid_leftcol = curwin->w_leftcol;
|
|
curwin->w_valid_skipcol = curwin->w_skipcol;
|
|
|
|
curwin->w_valid |= VALID_WCOL|VALID_WROW|VALID_VIRTCOL;
|
|
}
|
|
|
|
#if (defined(FEAT_EVAL) || defined(FEAT_PROP_POPUP)) || defined(PROTO)
|
|
/*
|
|
* Compute the screen position of text character at "pos" in window "wp"
|
|
* The resulting values are one-based, zero when character is not visible.
|
|
*/
|
|
void
|
|
textpos2screenpos(
|
|
win_T *wp,
|
|
pos_T *pos,
|
|
int *rowp, // screen row
|
|
int *scolp, // start screen column
|
|
int *ccolp, // cursor screen column
|
|
int *ecolp) // end screen column
|
|
{
|
|
colnr_T scol = 0, ccol = 0, ecol = 0;
|
|
int row = 0;
|
|
colnr_T coloff = 0;
|
|
|
|
if (pos->lnum >= wp->w_topline && pos->lnum <= wp->w_botline)
|
|
{
|
|
colnr_T col;
|
|
int width;
|
|
linenr_T lnum = pos->lnum;
|
|
#ifdef FEAT_FOLDING
|
|
int is_folded;
|
|
|
|
is_folded = hasFoldingWin(wp, lnum, &lnum, NULL, TRUE, NULL);
|
|
#endif
|
|
row = plines_m_win(wp, wp->w_topline, lnum - 1, INT_MAX);
|
|
// "row" should be the screen line where line "lnum" begins, which can
|
|
// be negative if "lnum" is "w_topline" and "w_skipcol" is non-zero.
|
|
row -= adjust_plines_for_skipcol(wp);
|
|
|
|
#ifdef FEAT_DIFF
|
|
// Add filler lines above this buffer line.
|
|
row += lnum == wp->w_topline ? wp->w_topfill
|
|
: diff_check_fill(wp, lnum);
|
|
#endif
|
|
|
|
colnr_T off = win_col_off(wp);
|
|
#ifdef FEAT_FOLDING
|
|
if (is_folded)
|
|
{
|
|
row += W_WINROW(wp) + 1;
|
|
coloff = wp->w_wincol + 1 + off;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
getvcol(wp, pos, &scol, &ccol, &ecol);
|
|
|
|
// similar to what is done in validate_cursor_col()
|
|
col = scol;
|
|
col += off;
|
|
width = wp->w_width - off + win_col_off2(wp);
|
|
|
|
// long line wrapping, adjust row
|
|
if (wp->w_p_wrap
|
|
&& col >= (colnr_T)wp->w_width
|
|
&& width > 0)
|
|
{
|
|
// use same formula as what is used in curs_columns()
|
|
int rowoff = ((col - wp->w_width) / width + 1);
|
|
col -= rowoff * width;
|
|
row += rowoff;
|
|
}
|
|
col -= wp->w_leftcol;
|
|
if (col >= wp->w_width)
|
|
col = -1;
|
|
if (col >= 0 && row >= 0 && row < wp->w_height)
|
|
{
|
|
coloff = col - scol + wp->w_wincol + 1;
|
|
row += W_WINROW(wp) + 1;
|
|
}
|
|
else
|
|
// character is out of the window
|
|
row = scol = ccol = ecol = 0;
|
|
}
|
|
}
|
|
*rowp = row;
|
|
*scolp = scol + coloff;
|
|
*ccolp = ccol + coloff;
|
|
*ecolp = ecol + coloff;
|
|
}
|
|
#endif
|
|
|
|
#if defined(FEAT_EVAL) || defined(PROTO)
|
|
/*
|
|
* "screenpos({winid}, {lnum}, {col})" function
|
|
*/
|
|
void
|
|
f_screenpos(typval_T *argvars UNUSED, typval_T *rettv)
|
|
{
|
|
dict_T *dict;
|
|
win_T *wp;
|
|
pos_T pos;
|
|
int row = 0;
|
|
int scol = 0, ccol = 0, ecol = 0;
|
|
|
|
if (rettv_dict_alloc(rettv) == FAIL)
|
|
return;
|
|
dict = rettv->vval.v_dict;
|
|
|
|
if (in_vim9script()
|
|
&& (check_for_number_arg(argvars, 0) == FAIL
|
|
|| check_for_number_arg(argvars, 1) == FAIL
|
|
|| check_for_number_arg(argvars, 2) == FAIL))
|
|
return;
|
|
|
|
wp = find_win_by_nr_or_id(&argvars[0]);
|
|
if (wp == NULL)
|
|
return;
|
|
|
|
pos.lnum = tv_get_number(&argvars[1]);
|
|
if (pos.lnum > wp->w_buffer->b_ml.ml_line_count)
|
|
{
|
|
semsg(_(e_invalid_line_number_nr), pos.lnum);
|
|
return;
|
|
}
|
|
pos.col = tv_get_number(&argvars[2]) - 1;
|
|
if (pos.col < 0)
|
|
pos.col = 0;
|
|
pos.coladd = 0;
|
|
textpos2screenpos(wp, &pos, &row, &scol, &ccol, &ecol);
|
|
|
|
dict_add_number(dict, "row", row);
|
|
dict_add_number(dict, "col", scol);
|
|
dict_add_number(dict, "curscol", ccol);
|
|
dict_add_number(dict, "endcol", ecol);
|
|
}
|
|
|
|
/*
|
|
* Convert a virtual (screen) column to a character column. The first column
|
|
* is one. For a multibyte character, the column number of the first byte is
|
|
* returned.
|
|
*/
|
|
static int
|
|
virtcol2col(win_T *wp, linenr_T lnum, int vcol)
|
|
{
|
|
int offset = vcol2col(wp, lnum, vcol - 1, NULL);
|
|
char_u *line = ml_get_buf(wp->w_buffer, lnum, FALSE);
|
|
char_u *p = line + offset;
|
|
|
|
if (*p == NUL)
|
|
{
|
|
if (p == line) // empty line
|
|
return 0;
|
|
// Move to the first byte of the last char.
|
|
MB_PTR_BACK(line, p);
|
|
}
|
|
return (int)(p - line + 1);
|
|
}
|
|
|
|
/*
|
|
* "virtcol2col({winid}, {lnum}, {col})" function
|
|
*/
|
|
void
|
|
f_virtcol2col(typval_T *argvars UNUSED, typval_T *rettv)
|
|
{
|
|
win_T *wp;
|
|
linenr_T lnum;
|
|
int screencol;
|
|
int error = FALSE;
|
|
|
|
rettv->vval.v_number = -1;
|
|
|
|
if (check_for_number_arg(argvars, 0) == FAIL
|
|
|| check_for_number_arg(argvars, 1) == FAIL
|
|
|| check_for_number_arg(argvars, 2) == FAIL)
|
|
return;
|
|
|
|
wp = find_win_by_nr_or_id(&argvars[0]);
|
|
if (wp == NULL)
|
|
return;
|
|
|
|
lnum = tv_get_number_chk(&argvars[1], &error);
|
|
if (error || lnum < 0 || lnum > wp->w_buffer->b_ml.ml_line_count)
|
|
return;
|
|
|
|
screencol = tv_get_number_chk(&argvars[2], &error);
|
|
if (error || screencol < 0)
|
|
return;
|
|
|
|
rettv->vval.v_number = virtcol2col(wp, lnum, screencol);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Make sure the cursor is in the visible part of the topline after scrolling
|
|
* the screen with 'smoothscroll'.
|
|
*/
|
|
static void cursor_correct_sms(void)
|
|
{
|
|
if (!curwin->w_p_sms || !curwin->w_p_wrap
|
|
|| curwin->w_cursor.lnum != curwin->w_topline)
|
|
return;
|
|
|
|
long so = get_scrolloff_value();
|
|
int width1 = curwin->w_width - curwin_col_off();
|
|
int width2 = width1 + curwin_col_off2();
|
|
int so_cols = so == 0 ? 0 : width1 + (so - 1) * width2;
|
|
int space_cols = (curwin->w_height - 1) * width2;
|
|
int overlap, top, bot;
|
|
int size = so == 0 ? 0 : linetabsize_eol(curwin, curwin->w_topline);
|
|
|
|
if (curwin->w_topline == 1 && curwin->w_skipcol == 0)
|
|
so_cols = 0; // Ignore 'scrolloff' at top of buffer.
|
|
else if (so_cols > space_cols / 2)
|
|
so_cols = space_cols / 2; // Not enough room: put cursor in the middle.
|
|
|
|
// Not enough screen lines in topline: ignore 'scrolloff'.
|
|
while (so_cols > size && so_cols - width2 >= width1 && width1 > 0)
|
|
so_cols -= width2;
|
|
if (so_cols >= width1 && so_cols > size)
|
|
so_cols -= width1;
|
|
|
|
overlap = curwin->w_skipcol == 0 ? 0
|
|
: sms_marker_overlap(curwin, curwin->w_width - width2);
|
|
// If we have non-zero scrolloff, ignore marker overlap.
|
|
top = curwin->w_skipcol + (so_cols != 0 ? so_cols : overlap);
|
|
bot = curwin->w_skipcol + width1 + (curwin->w_height - 1) * width2
|
|
- so_cols;
|
|
validate_virtcol();
|
|
colnr_T col = curwin->w_virtcol;
|
|
|
|
if (col < top)
|
|
{
|
|
if (col < width1)
|
|
col += width1;
|
|
while (width2 > 0 && col < top)
|
|
col += width2;
|
|
}
|
|
else
|
|
while (width2 > 0 && col >= bot)
|
|
col -= width2;
|
|
|
|
if (col != curwin->w_virtcol)
|
|
{
|
|
int rc;
|
|
|
|
curwin->w_curswant = col;
|
|
rc = coladvance(curwin->w_curswant);
|
|
// validate_virtcol() marked various things as valid, but after
|
|
// moving the cursor they need to be recomputed
|
|
curwin->w_valid &=
|
|
~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL);
|
|
if (rc == FAIL && curwin->w_skipcol > 0
|
|
&& curwin->w_cursor.lnum < curbuf->b_ml.ml_line_count)
|
|
{
|
|
validate_virtcol();
|
|
if (curwin->w_virtcol < curwin->w_skipcol + overlap)
|
|
{
|
|
// Cursor still not visible: move it to the next line instead.
|
|
curwin->w_cursor.lnum++;
|
|
curwin->w_cursor.col = 0;
|
|
curwin->w_cursor.coladd = 0;
|
|
curwin->w_curswant = 0;
|
|
curwin->w_valid &= ~VALID_VIRTCOL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Scroll "count" lines up or down, and redraw.
|
|
*/
|
|
void
|
|
scroll_redraw(int up, long count)
|
|
{
|
|
linenr_T prev_topline = curwin->w_topline;
|
|
int prev_skipcol = curwin->w_skipcol;
|
|
#ifdef FEAT_DIFF
|
|
int prev_topfill = curwin->w_topfill;
|
|
#endif
|
|
linenr_T prev_lnum = curwin->w_cursor.lnum;
|
|
|
|
if (up)
|
|
scrollup(count, TRUE);
|
|
else
|
|
scrolldown(count, TRUE);
|
|
if (get_scrolloff_value() > 0)
|
|
{
|
|
// Adjust the cursor position for 'scrolloff'. Mark w_topline as
|
|
// valid, otherwise the screen jumps back at the end of the file.
|
|
cursor_correct();
|
|
check_cursor_moved(curwin);
|
|
curwin->w_valid |= VALID_TOPLINE;
|
|
|
|
// If moved back to where we were, at least move the cursor, otherwise
|
|
// we get stuck at one position. Don't move the cursor up if the
|
|
// first line of the buffer is already on the screen
|
|
while (curwin->w_topline == prev_topline
|
|
&& curwin->w_skipcol == prev_skipcol
|
|
#ifdef FEAT_DIFF
|
|
&& curwin->w_topfill == prev_topfill
|
|
#endif
|
|
)
|
|
{
|
|
if (up)
|
|
{
|
|
if (curwin->w_cursor.lnum > prev_lnum
|
|
|| cursor_down(1L, FALSE) == FAIL)
|
|
break;
|
|
}
|
|
else
|
|
{
|
|
if (curwin->w_cursor.lnum < prev_lnum
|
|
|| prev_topline == 1L
|
|
|| cursor_up(1L, FALSE) == FAIL)
|
|
break;
|
|
}
|
|
// Mark w_topline as valid, otherwise the screen jumps back at the
|
|
// end of the file.
|
|
check_cursor_moved(curwin);
|
|
curwin->w_valid |= VALID_TOPLINE;
|
|
}
|
|
}
|
|
|
|
cursor_correct_sms();
|
|
if (curwin->w_cursor.lnum != prev_lnum)
|
|
coladvance(curwin->w_curswant);
|
|
redraw_later(UPD_VALID);
|
|
}
|
|
|
|
/*
|
|
* Scroll the current window down by "line_count" logical lines. "CTRL-Y"
|
|
*/
|
|
void
|
|
scrolldown(
|
|
long line_count,
|
|
int byfold UNUSED) // TRUE: count a closed fold as one line
|
|
{
|
|
long done = 0; // total # of physical lines done
|
|
int wrow;
|
|
int moved = FALSE;
|
|
int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
|
|
int width1 = 0;
|
|
int width2 = 0;
|
|
|
|
if (do_sms)
|
|
{
|
|
width1 = curwin->w_width - curwin_col_off();
|
|
width2 = width1 + curwin_col_off2();
|
|
}
|
|
|
|
#ifdef FEAT_FOLDING
|
|
linenr_T first;
|
|
|
|
// Make sure w_topline is at the first of a sequence of folded lines.
|
|
(void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
|
|
#endif
|
|
validate_cursor(); // w_wrow needs to be valid
|
|
for (int todo = line_count; todo > 0; --todo)
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
if (curwin->w_topfill < diff_check(curwin, curwin->w_topline)
|
|
&& curwin->w_topfill < curwin->w_height - 1)
|
|
{
|
|
++curwin->w_topfill;
|
|
++done;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
// break when at the very top
|
|
if (curwin->w_topline == 1
|
|
&& (!do_sms || curwin->w_skipcol < width1))
|
|
break;
|
|
if (do_sms && curwin->w_skipcol >= width1)
|
|
{
|
|
// scroll a screen line down
|
|
if (curwin->w_skipcol >= width1 + width2)
|
|
curwin->w_skipcol -= width2;
|
|
else
|
|
curwin->w_skipcol -= width1;
|
|
redraw_later(UPD_NOT_VALID);
|
|
++done;
|
|
}
|
|
else
|
|
{
|
|
// scroll a text line down
|
|
--curwin->w_topline;
|
|
curwin->w_skipcol = 0;
|
|
#ifdef FEAT_DIFF
|
|
curwin->w_topfill = 0;
|
|
#endif
|
|
#ifdef FEAT_FOLDING
|
|
// A sequence of folded lines only counts for one logical line
|
|
if (hasFolding(curwin->w_topline, &first, NULL))
|
|
{
|
|
++done;
|
|
if (!byfold)
|
|
todo -= curwin->w_topline - first - 1;
|
|
curwin->w_botline -= curwin->w_topline - first;
|
|
curwin->w_topline = first;
|
|
}
|
|
else
|
|
#endif
|
|
if (do_sms)
|
|
{
|
|
int size = linetabsize_eol(curwin, curwin->w_topline);
|
|
if (size > width1)
|
|
{
|
|
curwin->w_skipcol = width1;
|
|
size -= width1;
|
|
redraw_later(UPD_NOT_VALID);
|
|
}
|
|
while (size > width2)
|
|
{
|
|
curwin->w_skipcol += width2;
|
|
size -= width2;
|
|
}
|
|
++done;
|
|
}
|
|
else
|
|
done += PLINES_NOFILL(curwin->w_topline);
|
|
}
|
|
}
|
|
--curwin->w_botline; // approximate w_botline
|
|
invalidate_botline();
|
|
}
|
|
curwin->w_wrow += done; // keep w_wrow updated
|
|
curwin->w_cline_row += done; // keep w_cline_row updated
|
|
|
|
#ifdef FEAT_DIFF
|
|
if (curwin->w_cursor.lnum == curwin->w_topline)
|
|
curwin->w_cline_row = 0;
|
|
check_topfill(curwin, TRUE);
|
|
#endif
|
|
|
|
/*
|
|
* Compute the row number of the last row of the cursor line
|
|
* and move the cursor onto the displayed part of the window.
|
|
*/
|
|
wrow = curwin->w_wrow;
|
|
if (curwin->w_p_wrap && curwin->w_width != 0)
|
|
{
|
|
validate_virtcol();
|
|
validate_cheight();
|
|
wrow += curwin->w_cline_height - 1 -
|
|
curwin->w_virtcol / curwin->w_width;
|
|
}
|
|
while (wrow >= curwin->w_height && curwin->w_cursor.lnum > 1)
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(curwin->w_cursor.lnum, &first, NULL))
|
|
{
|
|
--wrow;
|
|
if (first == 1)
|
|
curwin->w_cursor.lnum = 1;
|
|
else
|
|
curwin->w_cursor.lnum = first - 1;
|
|
}
|
|
else
|
|
#endif
|
|
wrow -= plines(curwin->w_cursor.lnum--);
|
|
curwin->w_valid &=
|
|
~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL);
|
|
moved = TRUE;
|
|
}
|
|
if (moved)
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
// Move cursor to first line of closed fold.
|
|
foldAdjustCursor();
|
|
#endif
|
|
coladvance(curwin->w_curswant);
|
|
}
|
|
if (curwin->w_cursor.lnum < curwin->w_topline)
|
|
curwin->w_cursor.lnum = curwin->w_topline;
|
|
}
|
|
|
|
/*
|
|
* Scroll the current window up by "line_count" logical lines. "CTRL-E"
|
|
*/
|
|
void
|
|
scrollup(
|
|
long line_count,
|
|
int byfold UNUSED) // TRUE: count a closed fold as one line
|
|
{
|
|
int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
|
|
|
|
if (do_sms
|
|
# ifdef FEAT_FOLDING
|
|
|| (byfold && hasAnyFolding(curwin))
|
|
# endif
|
|
# ifdef FEAT_DIFF
|
|
|| (curwin->w_p_diff && !curwin->w_p_wrap)
|
|
# endif
|
|
)
|
|
{
|
|
int width1 = curwin->w_width - curwin_col_off();
|
|
int width2 = width1 + curwin_col_off2();
|
|
int size = 0;
|
|
colnr_T prev_skipcol = curwin->w_skipcol;
|
|
|
|
if (do_sms)
|
|
size = linetabsize_eol(curwin, curwin->w_topline);
|
|
|
|
// diff mode: first consume "topfill"
|
|
// 'smoothscroll': increase "w_skipcol" until it goes over the end of
|
|
// the line, then advance to the next line.
|
|
// folding: count each sequence of folded lines as one logical line.
|
|
for (int todo = line_count; todo > 0; --todo)
|
|
{
|
|
# ifdef FEAT_DIFF
|
|
if (curwin->w_topfill > 0)
|
|
--curwin->w_topfill;
|
|
else
|
|
# endif
|
|
{
|
|
linenr_T lnum = curwin->w_topline;
|
|
|
|
# ifdef FEAT_FOLDING
|
|
if (byfold)
|
|
// for a closed fold: go to the last line in the fold
|
|
(void)hasFolding(lnum, NULL, &lnum);
|
|
# endif
|
|
if (lnum == curwin->w_topline && do_sms)
|
|
{
|
|
// 'smoothscroll': increase "w_skipcol" until it goes over
|
|
// the end of the line, then advance to the next line.
|
|
int add = curwin->w_skipcol > 0 ? width2 : width1;
|
|
curwin->w_skipcol += add;
|
|
if (curwin->w_skipcol >= size)
|
|
{
|
|
if (lnum == curbuf->b_ml.ml_line_count)
|
|
{
|
|
// at the last screen line, can't scroll further
|
|
curwin->w_skipcol -= add;
|
|
break;
|
|
}
|
|
++lnum;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (lnum >= curbuf->b_ml.ml_line_count)
|
|
break;
|
|
++lnum;
|
|
}
|
|
|
|
if (lnum > curwin->w_topline)
|
|
{
|
|
// approximate w_botline
|
|
curwin->w_botline += lnum - curwin->w_topline;
|
|
curwin->w_topline = lnum;
|
|
# ifdef FEAT_DIFF
|
|
curwin->w_topfill = diff_check_fill(curwin, lnum);
|
|
# endif
|
|
curwin->w_skipcol = 0;
|
|
if (todo > 1 && do_sms)
|
|
size = linetabsize_eol(curwin, curwin->w_topline);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (prev_skipcol > 0 || curwin->w_skipcol > 0)
|
|
// need to redraw more, because wl_size of the (new) topline may
|
|
// now be invalid
|
|
redraw_later(UPD_NOT_VALID);
|
|
}
|
|
else
|
|
{
|
|
curwin->w_topline += line_count;
|
|
curwin->w_botline += line_count; // approximate w_botline
|
|
}
|
|
|
|
if (curwin->w_topline > curbuf->b_ml.ml_line_count)
|
|
curwin->w_topline = curbuf->b_ml.ml_line_count;
|
|
if (curwin->w_botline > curbuf->b_ml.ml_line_count + 1)
|
|
curwin->w_botline = curbuf->b_ml.ml_line_count + 1;
|
|
|
|
#ifdef FEAT_DIFF
|
|
check_topfill(curwin, FALSE);
|
|
#endif
|
|
|
|
#ifdef FEAT_FOLDING
|
|
if (hasAnyFolding(curwin))
|
|
// Make sure w_topline is at the first of a sequence of folded lines.
|
|
(void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
|
|
#endif
|
|
|
|
curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
|
|
if (curwin->w_cursor.lnum < curwin->w_topline)
|
|
{
|
|
curwin->w_cursor.lnum = curwin->w_topline;
|
|
curwin->w_valid &=
|
|
~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW|VALID_VIRTCOL);
|
|
coladvance(curwin->w_curswant);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Called after changing the cursor column: make sure that curwin->w_skipcol is
|
|
* valid for 'smoothscroll'.
|
|
*/
|
|
void
|
|
adjust_skipcol(void)
|
|
{
|
|
if (!curwin->w_p_wrap
|
|
|| !curwin->w_p_sms
|
|
|| curwin->w_cursor.lnum != curwin->w_topline)
|
|
return;
|
|
|
|
int width1 = curwin->w_width - curwin_col_off();
|
|
if (width1 <= 0)
|
|
return; // no text will be displayed
|
|
|
|
int width2 = width1 + curwin_col_off2();
|
|
long so = get_scrolloff_value();
|
|
int scrolloff_cols = so == 0 ? 0 : width1 + (so - 1) * width2;
|
|
int scrolled = FALSE;
|
|
int row = 0;
|
|
int overlap, col;
|
|
|
|
validate_cheight();
|
|
if (curwin->w_cline_height == curwin->w_height
|
|
// w_cline_height may be capped at w_height, check there aren't
|
|
// actually more lines.
|
|
&& plines_win(curwin, curwin->w_cursor.lnum, FALSE)
|
|
<= curwin->w_height)
|
|
{
|
|
// the line just fits in the window, don't scroll
|
|
reset_skipcol();
|
|
return;
|
|
}
|
|
|
|
validate_virtcol();
|
|
overlap = sms_marker_overlap(curwin, curwin->w_width - width2);
|
|
while (curwin->w_skipcol > 0
|
|
&& curwin->w_virtcol < curwin->w_skipcol + overlap + scrolloff_cols)
|
|
{
|
|
// scroll a screen line down
|
|
if (curwin->w_skipcol >= width1 + width2)
|
|
curwin->w_skipcol -= width2;
|
|
else
|
|
curwin->w_skipcol -= width1;
|
|
scrolled = TRUE;
|
|
}
|
|
if (scrolled)
|
|
{
|
|
validate_virtcol();
|
|
redraw_later(UPD_NOT_VALID);
|
|
return; // don't scroll in the other direction now
|
|
}
|
|
|
|
col = curwin->w_virtcol + scrolloff_cols;
|
|
|
|
// Avoid adjusting for 'scrolloff' beyond the text line height.
|
|
if (scrolloff_cols > 0)
|
|
{
|
|
int size = linetabsize_eol(curwin, curwin->w_topline);
|
|
size = width1 + width2 * ((size - width1 + width2 - 1) / width2);
|
|
while (col > size)
|
|
col -= width2;
|
|
}
|
|
col -= curwin->w_skipcol;
|
|
|
|
if (col >= width1)
|
|
{
|
|
col -= width1;
|
|
++row;
|
|
}
|
|
if (col > width2)
|
|
{
|
|
row += col / width2;
|
|
// col may no longer be used, but make
|
|
// sure it is correct anyhow, just in case
|
|
col = col % width2;
|
|
}
|
|
if (row >= curwin->w_height)
|
|
{
|
|
if (curwin->w_skipcol == 0)
|
|
{
|
|
curwin->w_skipcol += width1;
|
|
--row;
|
|
}
|
|
if (row >= curwin->w_height)
|
|
curwin->w_skipcol += (row - curwin->w_height) * width2;
|
|
redraw_later(UPD_NOT_VALID);
|
|
}
|
|
}
|
|
|
|
#ifdef FEAT_DIFF
|
|
/*
|
|
* Don't end up with too many filler lines in the window.
|
|
*/
|
|
void
|
|
check_topfill(
|
|
win_T *wp,
|
|
int down) // when TRUE scroll down when not enough space
|
|
{
|
|
int n;
|
|
|
|
if (wp->w_topfill <= 0)
|
|
return;
|
|
|
|
n = plines_win_nofill(wp, wp->w_topline, TRUE);
|
|
if (wp->w_topfill + n > wp->w_height)
|
|
{
|
|
if (down && wp->w_topline > 1)
|
|
{
|
|
--wp->w_topline;
|
|
wp->w_topfill = 0;
|
|
}
|
|
else
|
|
{
|
|
wp->w_topfill = wp->w_height - n;
|
|
if (wp->w_topfill < 0)
|
|
wp->w_topfill = 0;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Scroll the screen one line down, but don't do it if it would move the
|
|
* cursor off the screen.
|
|
*/
|
|
void
|
|
scrolldown_clamp(void)
|
|
{
|
|
int end_row;
|
|
#ifdef FEAT_DIFF
|
|
int can_fill = (curwin->w_topfill
|
|
< diff_check_fill(curwin, curwin->w_topline));
|
|
#endif
|
|
|
|
if (curwin->w_topline <= 1
|
|
#ifdef FEAT_DIFF
|
|
&& !can_fill
|
|
#endif
|
|
)
|
|
return;
|
|
|
|
validate_cursor(); // w_wrow needs to be valid
|
|
|
|
/*
|
|
* Compute the row number of the last row of the cursor line
|
|
* and make sure it doesn't go off the screen. Make sure the cursor
|
|
* doesn't go past 'scrolloff' lines from the screen end.
|
|
*/
|
|
end_row = curwin->w_wrow;
|
|
#ifdef FEAT_DIFF
|
|
if (can_fill)
|
|
++end_row;
|
|
else
|
|
end_row += plines_nofill(curwin->w_topline - 1);
|
|
#else
|
|
end_row += plines(curwin->w_topline - 1);
|
|
#endif
|
|
if (curwin->w_p_wrap && curwin->w_width != 0)
|
|
{
|
|
validate_cheight();
|
|
validate_virtcol();
|
|
end_row += curwin->w_cline_height - 1 -
|
|
curwin->w_virtcol / curwin->w_width;
|
|
}
|
|
if (end_row < curwin->w_height - get_scrolloff_value())
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
if (can_fill)
|
|
{
|
|
++curwin->w_topfill;
|
|
check_topfill(curwin, TRUE);
|
|
}
|
|
else
|
|
{
|
|
--curwin->w_topline;
|
|
curwin->w_topfill = 0;
|
|
}
|
|
#else
|
|
--curwin->w_topline;
|
|
#endif
|
|
#ifdef FEAT_FOLDING
|
|
(void)hasFolding(curwin->w_topline, &curwin->w_topline, NULL);
|
|
#endif
|
|
--curwin->w_botline; // approximate w_botline
|
|
curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Scroll the screen one line up, but don't do it if it would move the cursor
|
|
* off the screen.
|
|
*/
|
|
void
|
|
scrollup_clamp(void)
|
|
{
|
|
int start_row;
|
|
|
|
if (curwin->w_topline == curbuf->b_ml.ml_line_count
|
|
#ifdef FEAT_DIFF
|
|
&& curwin->w_topfill == 0
|
|
#endif
|
|
)
|
|
return;
|
|
|
|
validate_cursor(); // w_wrow needs to be valid
|
|
|
|
/*
|
|
* Compute the row number of the first row of the cursor line
|
|
* and make sure it doesn't go off the screen. Make sure the cursor
|
|
* doesn't go before 'scrolloff' lines from the screen start.
|
|
*/
|
|
#ifdef FEAT_DIFF
|
|
start_row = curwin->w_wrow - plines_nofill(curwin->w_topline)
|
|
- curwin->w_topfill;
|
|
#else
|
|
start_row = curwin->w_wrow - plines(curwin->w_topline);
|
|
#endif
|
|
if (curwin->w_p_wrap && curwin->w_width != 0)
|
|
{
|
|
validate_virtcol();
|
|
start_row -= curwin->w_virtcol / curwin->w_width;
|
|
}
|
|
if (start_row >= get_scrolloff_value())
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
if (curwin->w_topfill > 0)
|
|
--curwin->w_topfill;
|
|
else
|
|
#endif
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
(void)hasFolding(curwin->w_topline, NULL, &curwin->w_topline);
|
|
#endif
|
|
++curwin->w_topline;
|
|
}
|
|
++curwin->w_botline; // approximate w_botline
|
|
curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Add one line above "lp->lnum". This can be a filler line, a closed fold or
|
|
* a (wrapped) text line. Uses and sets "lp->fill".
|
|
* Returns the height of the added line in "lp->height".
|
|
* Lines above the first one are incredibly high: MAXCOL.
|
|
*/
|
|
static void
|
|
topline_back_winheight(
|
|
lineoff_T *lp,
|
|
int winheight) // when TRUE limit to window height
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
if (lp->fill < diff_check_fill(curwin, lp->lnum))
|
|
{
|
|
// Add a filler line.
|
|
++lp->fill;
|
|
lp->height = 1;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
--lp->lnum;
|
|
#ifdef FEAT_DIFF
|
|
lp->fill = 0;
|
|
#endif
|
|
if (lp->lnum < 1)
|
|
lp->height = MAXCOL;
|
|
else
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(lp->lnum, &lp->lnum, NULL))
|
|
// Add a closed fold
|
|
lp->height = 1;
|
|
else
|
|
#endif
|
|
lp->height = PLINES_WIN_NOFILL(curwin, lp->lnum, winheight);
|
|
}
|
|
}
|
|
|
|
static void
|
|
topline_back(lineoff_T *lp)
|
|
{
|
|
topline_back_winheight(lp, TRUE);
|
|
}
|
|
|
|
|
|
/*
|
|
* Add one line below "lp->lnum". This can be a filler line, a closed fold or
|
|
* a (wrapped) text line. Uses and sets "lp->fill".
|
|
* Returns the height of the added line in "lp->height".
|
|
* Lines below the last one are incredibly high.
|
|
*/
|
|
static void
|
|
botline_forw(lineoff_T *lp)
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
if (lp->fill < diff_check_fill(curwin, lp->lnum + 1))
|
|
{
|
|
// Add a filler line.
|
|
++lp->fill;
|
|
lp->height = 1;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
++lp->lnum;
|
|
#ifdef FEAT_DIFF
|
|
lp->fill = 0;
|
|
#endif
|
|
if (lp->lnum > curbuf->b_ml.ml_line_count)
|
|
lp->height = MAXCOL;
|
|
else
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(lp->lnum, NULL, &lp->lnum))
|
|
// Add a closed fold
|
|
lp->height = 1;
|
|
else
|
|
#endif
|
|
lp->height = PLINES_NOFILL(lp->lnum);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Recompute topline to put the cursor at the top of the window.
|
|
* Scroll at least "min_scroll" lines.
|
|
* If "always" is TRUE, always set topline (for "zt").
|
|
*/
|
|
void
|
|
scroll_cursor_top(int min_scroll, int always)
|
|
{
|
|
int scrolled = 0;
|
|
int extra = 0;
|
|
int used;
|
|
int i;
|
|
linenr_T top; // just above displayed lines
|
|
linenr_T bot; // just below displayed lines
|
|
linenr_T old_topline = curwin->w_topline;
|
|
int old_skipcol = curwin->w_skipcol;
|
|
#ifdef FEAT_DIFF
|
|
linenr_T old_topfill = curwin->w_topfill;
|
|
#endif
|
|
linenr_T new_topline;
|
|
int off = get_scrolloff_value();
|
|
|
|
if (mouse_dragging > 0)
|
|
off = mouse_dragging - 1;
|
|
|
|
/*
|
|
* Decrease topline until:
|
|
* - it has become 1
|
|
* - (part of) the cursor line is moved off the screen or
|
|
* - moved at least 'scrolljump' lines and
|
|
* - at least 'scrolloff' lines above and below the cursor
|
|
*/
|
|
validate_cheight();
|
|
used = curwin->w_cline_height; // includes filler lines above
|
|
if (curwin->w_cursor.lnum < curwin->w_topline)
|
|
scrolled = used;
|
|
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(curwin->w_cursor.lnum, &top, &bot))
|
|
{
|
|
--top;
|
|
++bot;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
top = curwin->w_cursor.lnum - 1;
|
|
bot = curwin->w_cursor.lnum + 1;
|
|
}
|
|
new_topline = top + 1;
|
|
|
|
#ifdef FEAT_DIFF
|
|
// "used" already contains the number of filler lines above, don't add it
|
|
// again.
|
|
// Hide filler lines above cursor line by adding them to "extra".
|
|
extra += diff_check_fill(curwin, curwin->w_cursor.lnum);
|
|
#endif
|
|
|
|
/*
|
|
* Check if the lines from "top" to "bot" fit in the window. If they do,
|
|
* set new_topline and advance "top" and "bot" to include more lines.
|
|
*/
|
|
while (top > 0)
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(top, &top, NULL))
|
|
// count one logical line for a sequence of folded lines
|
|
i = 1;
|
|
else
|
|
#endif
|
|
i = PLINES_NOFILL(top);
|
|
if (top < curwin->w_topline)
|
|
scrolled += i;
|
|
|
|
// If scrolling is needed, scroll at least 'sj' lines.
|
|
if ((new_topline >= curwin->w_topline || scrolled > min_scroll)
|
|
&& extra >= off)
|
|
break;
|
|
|
|
used += i;
|
|
if (extra + i <= off && bot < curbuf->b_ml.ml_line_count)
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(bot, NULL, &bot))
|
|
// count one logical line for a sequence of folded lines
|
|
++used;
|
|
else
|
|
#endif
|
|
used += plines(bot);
|
|
}
|
|
if (used > curwin->w_height)
|
|
break;
|
|
|
|
extra += i;
|
|
new_topline = top;
|
|
--top;
|
|
++bot;
|
|
}
|
|
|
|
/*
|
|
* If we don't have enough space, put cursor in the middle.
|
|
* This makes sure we get the same position when using "k" and "j"
|
|
* in a small window.
|
|
*/
|
|
if (used > curwin->w_height)
|
|
scroll_cursor_halfway(FALSE, FALSE);
|
|
else
|
|
{
|
|
/*
|
|
* If "always" is FALSE, only adjust topline to a lower value, higher
|
|
* value may happen with wrapping lines.
|
|
*/
|
|
if (new_topline < curwin->w_topline || always)
|
|
curwin->w_topline = new_topline;
|
|
if (curwin->w_topline > curwin->w_cursor.lnum)
|
|
curwin->w_topline = curwin->w_cursor.lnum;
|
|
#ifdef FEAT_DIFF
|
|
curwin->w_topfill = diff_check_fill(curwin, curwin->w_topline);
|
|
if (curwin->w_topfill > 0 && extra > off)
|
|
{
|
|
curwin->w_topfill -= extra - off;
|
|
if (curwin->w_topfill < 0)
|
|
curwin->w_topfill = 0;
|
|
}
|
|
check_topfill(curwin, FALSE);
|
|
#endif
|
|
if (curwin->w_topline != old_topline)
|
|
reset_skipcol();
|
|
else if (curwin->w_topline == curwin->w_cursor.lnum)
|
|
{
|
|
validate_virtcol();
|
|
if (curwin->w_skipcol >= curwin->w_virtcol)
|
|
// TODO: if the line doesn't fit may optimize w_skipcol instead
|
|
// of making it zero
|
|
reset_skipcol();
|
|
}
|
|
if (curwin->w_topline != old_topline
|
|
|| curwin->w_skipcol != old_skipcol
|
|
#ifdef FEAT_DIFF
|
|
|| curwin->w_topfill != old_topfill
|
|
#endif
|
|
)
|
|
curwin->w_valid &=
|
|
~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
|
|
curwin->w_valid |= VALID_TOPLINE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Set w_empty_rows and w_filler_rows for window "wp", having used up "used"
|
|
* screen lines for text lines.
|
|
*/
|
|
void
|
|
set_empty_rows(win_T *wp, int used)
|
|
{
|
|
#ifdef FEAT_DIFF
|
|
wp->w_filler_rows = 0;
|
|
#endif
|
|
if (used == 0)
|
|
wp->w_empty_rows = 0; // single line that doesn't fit
|
|
else
|
|
{
|
|
wp->w_empty_rows = wp->w_height - used;
|
|
#ifdef FEAT_DIFF
|
|
if (wp->w_botline <= wp->w_buffer->b_ml.ml_line_count)
|
|
{
|
|
wp->w_filler_rows = diff_check_fill(wp, wp->w_botline);
|
|
if (wp->w_empty_rows > wp->w_filler_rows)
|
|
wp->w_empty_rows -= wp->w_filler_rows;
|
|
else
|
|
{
|
|
wp->w_filler_rows = wp->w_empty_rows;
|
|
wp->w_empty_rows = 0;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Recompute topline to put the cursor at the bottom of the window.
|
|
* When scrolling scroll at least "min_scroll" lines.
|
|
* If "set_topbot" is TRUE, set topline and botline first (for "zb").
|
|
* This is messy stuff!!!
|
|
*/
|
|
void
|
|
scroll_cursor_bot(int min_scroll, int set_topbot)
|
|
{
|
|
int used;
|
|
int scrolled = 0;
|
|
int extra = 0;
|
|
int i;
|
|
linenr_T line_count;
|
|
linenr_T old_topline = curwin->w_topline;
|
|
int old_skipcol = curwin->w_skipcol;
|
|
lineoff_T loff;
|
|
lineoff_T boff;
|
|
#ifdef FEAT_DIFF
|
|
int old_topfill = curwin->w_topfill;
|
|
int fill_below_window;
|
|
#endif
|
|
linenr_T old_botline = curwin->w_botline;
|
|
linenr_T old_valid = curwin->w_valid;
|
|
int old_empty_rows = curwin->w_empty_rows;
|
|
linenr_T cln; // Cursor Line Number
|
|
long so = get_scrolloff_value();
|
|
int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
|
|
|
|
cln = curwin->w_cursor.lnum;
|
|
if (set_topbot)
|
|
{
|
|
used = 0;
|
|
curwin->w_botline = cln + 1;
|
|
loff.lnum = cln + 1;
|
|
#ifdef FEAT_DIFF
|
|
loff.fill = 0;
|
|
#endif
|
|
while (TRUE)
|
|
{
|
|
topline_back_winheight(&loff, FALSE);
|
|
if (loff.height == MAXCOL)
|
|
break;
|
|
if (used + loff.height > curwin->w_height)
|
|
{
|
|
if (do_sms)
|
|
{
|
|
// 'smoothscroll' and 'wrap' are set. The above line is
|
|
// too long to show in its entirety, so we show just a part
|
|
// of it.
|
|
if (used < curwin->w_height)
|
|
{
|
|
int plines_offset = used + loff.height
|
|
- curwin->w_height;
|
|
used = curwin->w_height;
|
|
#ifdef FEAT_DIFF
|
|
curwin->w_topfill = loff.fill;
|
|
#endif
|
|
curwin->w_topline = loff.lnum;
|
|
curwin->w_skipcol = skipcol_from_plines(
|
|
curwin, plines_offset);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
#ifdef FEAT_DIFF
|
|
curwin->w_topfill = loff.fill;
|
|
#endif
|
|
curwin->w_topline = loff.lnum;
|
|
used += loff.height;
|
|
}
|
|
|
|
set_empty_rows(curwin, used);
|
|
curwin->w_valid |= VALID_BOTLINE|VALID_BOTLINE_AP;
|
|
if (curwin->w_topline != old_topline
|
|
#ifdef FEAT_DIFF
|
|
|| curwin->w_topfill != old_topfill
|
|
#endif
|
|
|| curwin->w_skipcol != old_skipcol
|
|
|| curwin->w_skipcol != 0)
|
|
{
|
|
curwin->w_valid &= ~(VALID_WROW|VALID_CROW);
|
|
if (curwin->w_skipcol != old_skipcol)
|
|
redraw_later(UPD_NOT_VALID);
|
|
else
|
|
reset_skipcol();
|
|
}
|
|
}
|
|
else
|
|
validate_botline();
|
|
|
|
// The lines of the cursor line itself are always used.
|
|
#ifdef FEAT_DIFF
|
|
used = plines_nofill(cln);
|
|
#else
|
|
validate_cheight();
|
|
used = curwin->w_cline_height;
|
|
#endif
|
|
|
|
// If the cursor is on or below botline, we will at least scroll by the
|
|
// height of the cursor line, which is "used". Correct for empty lines,
|
|
// which are really part of botline.
|
|
if (cln >= curwin->w_botline)
|
|
{
|
|
scrolled = used;
|
|
if (cln == curwin->w_botline)
|
|
scrolled -= curwin->w_empty_rows;
|
|
if (do_sms)
|
|
{
|
|
// 'smoothscroll' and 'wrap' are set.
|
|
// Calculate how many screen lines the current top line of window
|
|
// occupies. If it is occupying more than the entire window, we
|
|
// need to scroll the additional clipped lines to scroll past the
|
|
// top line before we can move on to the other lines.
|
|
int top_plines =
|
|
#ifdef FEAT_DIFF
|
|
plines_win_nofill
|
|
#else
|
|
plines_win
|
|
#endif
|
|
(curwin, curwin->w_topline, FALSE);
|
|
int width1 = curwin->w_width - curwin_col_off();
|
|
|
|
if (width1 > 0)
|
|
{
|
|
int width2 = width1 + curwin_col_off2();
|
|
int skip_lines = 0;
|
|
|
|
// A similar formula is used in curs_columns().
|
|
if (curwin->w_skipcol > width1)
|
|
skip_lines += (curwin->w_skipcol - width1) / width2 + 1;
|
|
else if (curwin->w_skipcol > 0)
|
|
skip_lines = 1;
|
|
|
|
top_plines -= skip_lines;
|
|
if (top_plines > curwin->w_height)
|
|
{
|
|
scrolled += (top_plines - curwin->w_height);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Stop counting lines to scroll when
|
|
* - hitting start of the file
|
|
* - scrolled nothing or at least 'sj' lines
|
|
* - at least 'scrolloff' lines below the cursor
|
|
* - lines between botline and cursor have been counted
|
|
*/
|
|
#ifdef FEAT_FOLDING
|
|
if (!hasFolding(curwin->w_cursor.lnum, &loff.lnum, &boff.lnum))
|
|
#endif
|
|
{
|
|
loff.lnum = cln;
|
|
boff.lnum = cln;
|
|
}
|
|
#ifdef FEAT_DIFF
|
|
loff.fill = 0;
|
|
boff.fill = 0;
|
|
fill_below_window = diff_check_fill(curwin, curwin->w_botline)
|
|
- curwin->w_filler_rows;
|
|
#endif
|
|
|
|
while (loff.lnum > 1)
|
|
{
|
|
// Stop when scrolled nothing or at least "min_scroll", found "extra"
|
|
// context for 'scrolloff' and counted all lines below the window.
|
|
if ((((scrolled <= 0 || scrolled >= min_scroll)
|
|
&& extra >= (mouse_dragging > 0 ? mouse_dragging - 1 : so))
|
|
|| boff.lnum + 1 > curbuf->b_ml.ml_line_count)
|
|
&& loff.lnum <= curwin->w_botline
|
|
#ifdef FEAT_DIFF
|
|
&& (loff.lnum < curwin->w_botline
|
|
|| loff.fill >= fill_below_window)
|
|
#endif
|
|
)
|
|
break;
|
|
|
|
// Add one line above
|
|
topline_back(&loff);
|
|
if (loff.height == MAXCOL)
|
|
used = MAXCOL;
|
|
else
|
|
used += loff.height;
|
|
if (used > curwin->w_height)
|
|
break;
|
|
if (loff.lnum >= curwin->w_botline
|
|
#ifdef FEAT_DIFF
|
|
&& (loff.lnum > curwin->w_botline
|
|
|| loff.fill <= fill_below_window)
|
|
#endif
|
|
)
|
|
{
|
|
// Count screen lines that are below the window.
|
|
scrolled += loff.height;
|
|
if (loff.lnum == curwin->w_botline
|
|
#ifdef FEAT_DIFF
|
|
&& loff.fill == 0
|
|
#endif
|
|
)
|
|
scrolled -= curwin->w_empty_rows;
|
|
}
|
|
|
|
if (boff.lnum < curbuf->b_ml.ml_line_count)
|
|
{
|
|
// Add one line below
|
|
botline_forw(&boff);
|
|
used += boff.height;
|
|
if (used > curwin->w_height)
|
|
break;
|
|
if (extra < ( mouse_dragging > 0 ? mouse_dragging - 1 : so)
|
|
|| scrolled < min_scroll)
|
|
{
|
|
extra += boff.height;
|
|
if (boff.lnum >= curwin->w_botline
|
|
#ifdef FEAT_DIFF
|
|
|| (boff.lnum + 1 == curwin->w_botline
|
|
&& boff.fill > curwin->w_filler_rows)
|
|
#endif
|
|
)
|
|
{
|
|
// Count screen lines that are below the window.
|
|
scrolled += boff.height;
|
|
if (boff.lnum == curwin->w_botline
|
|
#ifdef FEAT_DIFF
|
|
&& boff.fill == 0
|
|
#endif
|
|
)
|
|
scrolled -= curwin->w_empty_rows;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// curwin->w_empty_rows is larger, no need to scroll
|
|
if (scrolled <= 0)
|
|
line_count = 0;
|
|
// more than a screenfull, don't scroll but redraw
|
|
else if (used > curwin->w_height)
|
|
line_count = used;
|
|
// scroll minimal number of lines
|
|
else
|
|
{
|
|
line_count = 0;
|
|
#ifdef FEAT_DIFF
|
|
boff.fill = curwin->w_topfill;
|
|
#endif
|
|
boff.lnum = curwin->w_topline - 1;
|
|
for (i = 0; i < scrolled && boff.lnum < curwin->w_botline; )
|
|
{
|
|
botline_forw(&boff);
|
|
i += boff.height;
|
|
++line_count;
|
|
}
|
|
if (i < scrolled) // below curwin->w_botline, don't scroll
|
|
line_count = 9999;
|
|
}
|
|
|
|
/*
|
|
* Scroll up if the cursor is off the bottom of the screen a bit.
|
|
* Otherwise put it at 1/2 of the screen.
|
|
*/
|
|
if (line_count >= curwin->w_height && line_count > min_scroll)
|
|
scroll_cursor_halfway(FALSE, TRUE);
|
|
else if (line_count > 0)
|
|
{
|
|
if (do_sms)
|
|
scrollup(scrolled, TRUE); // TODO
|
|
else
|
|
scrollup(line_count, TRUE);
|
|
}
|
|
|
|
/*
|
|
* If topline didn't change we need to restore w_botline and w_empty_rows
|
|
* (we changed them).
|
|
* If topline did change, update_screen() will set botline.
|
|
*/
|
|
if (curwin->w_topline == old_topline
|
|
&& curwin->w_skipcol == old_skipcol
|
|
&& set_topbot)
|
|
{
|
|
curwin->w_botline = old_botline;
|
|
curwin->w_empty_rows = old_empty_rows;
|
|
curwin->w_valid = old_valid;
|
|
}
|
|
curwin->w_valid |= VALID_TOPLINE;
|
|
|
|
// Make sure cursor is still visible after adjusting skipcol for "zb".
|
|
if (set_topbot)
|
|
cursor_correct_sms();
|
|
}
|
|
|
|
/*
|
|
* Recompute topline to put the cursor halfway the window
|
|
* If "atend" is TRUE, also put it halfway at the end of the file.
|
|
*/
|
|
void
|
|
scroll_cursor_halfway(int atend, int prefer_above)
|
|
{
|
|
int above = 0;
|
|
linenr_T topline;
|
|
colnr_T skipcol = 0;
|
|
#ifdef FEAT_DIFF
|
|
int topfill = 0;
|
|
#endif
|
|
int below = 0;
|
|
int used;
|
|
lineoff_T loff;
|
|
lineoff_T boff;
|
|
#ifdef FEAT_DIFF
|
|
linenr_T old_topline = curwin->w_topline;
|
|
#endif
|
|
|
|
#ifdef FEAT_PROP_POPUP
|
|
// if the width changed this needs to be updated first
|
|
may_update_popup_position();
|
|
#endif
|
|
loff.lnum = boff.lnum = curwin->w_cursor.lnum;
|
|
#ifdef FEAT_FOLDING
|
|
(void)hasFolding(loff.lnum, &loff.lnum, &boff.lnum);
|
|
#endif
|
|
#ifdef FEAT_DIFF
|
|
used = plines_nofill(loff.lnum);
|
|
loff.fill = 0;
|
|
boff.fill = 0;
|
|
#else
|
|
used = plines(loff.lnum);
|
|
#endif
|
|
topline = loff.lnum;
|
|
|
|
int want_height;
|
|
int do_sms = curwin->w_p_wrap && curwin->w_p_sms;
|
|
if (do_sms)
|
|
{
|
|
// 'smoothscroll' and 'wrap' are set
|
|
if (atend)
|
|
{
|
|
want_height = (curwin->w_height - used) / 2;
|
|
used = 0;
|
|
}
|
|
else
|
|
want_height = curwin->w_height;
|
|
}
|
|
|
|
while (topline > 1)
|
|
{
|
|
// If using smoothscroll, we can precisely scroll to the
|
|
// exact point where the cursor is halfway down the screen.
|
|
if (do_sms)
|
|
{
|
|
topline_back_winheight(&loff, FALSE);
|
|
if (loff.height == MAXCOL)
|
|
break;
|
|
used += loff.height;
|
|
if (!atend && boff.lnum < curbuf->b_ml.ml_line_count)
|
|
{
|
|
botline_forw(&boff);
|
|
used += boff.height;
|
|
}
|
|
if (used > want_height)
|
|
{
|
|
if (used - loff.height < want_height)
|
|
{
|
|
topline = loff.lnum;
|
|
#ifdef FEAT_DIFF
|
|
topfill = loff.fill;
|
|
#endif
|
|
skipcol = skipcol_from_plines(curwin, used - want_height);
|
|
}
|
|
break;
|
|
}
|
|
topline = loff.lnum;
|
|
#ifdef FEAT_DIFF
|
|
topfill = loff.fill;
|
|
#endif
|
|
continue;
|
|
}
|
|
|
|
// If not using smoothscroll, we have to iteratively find how many
|
|
// lines to scroll down to roughly fit the cursor.
|
|
// This may not be right in the middle if the lines'
|
|
// physical height > 1 (e.g. 'wrap' is on).
|
|
|
|
// Depending on "prefer_above" we add a line above or below first.
|
|
// Loop twice to avoid duplicating code.
|
|
int done = FALSE;
|
|
for (int round = 1; round <= 2; ++round)
|
|
{
|
|
if (prefer_above ? (round == 2 && below < above)
|
|
: (round == 1 && below <= above))
|
|
{
|
|
// add a line below the cursor
|
|
if (boff.lnum < curbuf->b_ml.ml_line_count)
|
|
{
|
|
botline_forw(&boff);
|
|
used += boff.height;
|
|
if (used > curwin->w_height)
|
|
{
|
|
done = TRUE;
|
|
break;
|
|
}
|
|
below += boff.height;
|
|
}
|
|
else
|
|
{
|
|
++below; // count a "~" line
|
|
if (atend)
|
|
++used;
|
|
}
|
|
}
|
|
|
|
if (prefer_above ? (round == 1 && below >= above)
|
|
: (round == 1 && below > above))
|
|
{
|
|
// add a line above the cursor
|
|
topline_back(&loff);
|
|
if (loff.height == MAXCOL)
|
|
used = MAXCOL;
|
|
else
|
|
used += loff.height;
|
|
if (used > curwin->w_height)
|
|
{
|
|
done = TRUE;
|
|
break;
|
|
}
|
|
above += loff.height;
|
|
topline = loff.lnum;
|
|
#ifdef FEAT_DIFF
|
|
topfill = loff.fill;
|
|
#endif
|
|
}
|
|
}
|
|
if (done)
|
|
break;
|
|
}
|
|
|
|
#ifdef FEAT_FOLDING
|
|
if (!hasFolding(topline, &curwin->w_topline, NULL))
|
|
#endif
|
|
{
|
|
if (curwin->w_topline != topline
|
|
|| skipcol != 0
|
|
|| curwin->w_skipcol != 0)
|
|
{
|
|
curwin->w_topline = topline;
|
|
if (skipcol != 0)
|
|
{
|
|
curwin->w_skipcol = skipcol;
|
|
redraw_later(UPD_NOT_VALID);
|
|
}
|
|
else if (do_sms)
|
|
reset_skipcol();
|
|
}
|
|
}
|
|
#ifdef FEAT_DIFF
|
|
curwin->w_topfill = topfill;
|
|
if (old_topline > curwin->w_topline + curwin->w_height)
|
|
curwin->w_botfill = FALSE;
|
|
check_topfill(curwin, FALSE);
|
|
#endif
|
|
curwin->w_valid &= ~(VALID_WROW|VALID_CROW|VALID_BOTLINE|VALID_BOTLINE_AP);
|
|
curwin->w_valid |= VALID_TOPLINE;
|
|
}
|
|
|
|
/*
|
|
* Correct the cursor position so that it is in a part of the screen at least
|
|
* 'scrolloff' lines from the top and bottom, if possible.
|
|
* If not possible, put it at the same position as scroll_cursor_halfway().
|
|
* When called topline must be valid!
|
|
*/
|
|
void
|
|
cursor_correct(void)
|
|
{
|
|
int above = 0; // screen lines above topline
|
|
linenr_T topline;
|
|
int below = 0; // screen lines below botline
|
|
linenr_T botline;
|
|
int above_wanted, below_wanted;
|
|
linenr_T cln; // Cursor Line Number
|
|
int max_off;
|
|
long so = get_scrolloff_value();
|
|
|
|
/*
|
|
* How many lines we would like to have above/below the cursor depends on
|
|
* whether the first/last line of the file is on screen.
|
|
*/
|
|
above_wanted = so;
|
|
below_wanted = so;
|
|
if (mouse_dragging > 0)
|
|
{
|
|
above_wanted = mouse_dragging - 1;
|
|
below_wanted = mouse_dragging - 1;
|
|
}
|
|
if (curwin->w_topline == 1)
|
|
{
|
|
above_wanted = 0;
|
|
max_off = curwin->w_height / 2;
|
|
if (below_wanted > max_off)
|
|
below_wanted = max_off;
|
|
}
|
|
validate_botline();
|
|
if (curwin->w_botline == curbuf->b_ml.ml_line_count + 1
|
|
&& mouse_dragging == 0)
|
|
{
|
|
below_wanted = 0;
|
|
max_off = (curwin->w_height - 1) / 2;
|
|
if (above_wanted > max_off)
|
|
above_wanted = max_off;
|
|
}
|
|
|
|
/*
|
|
* If there are sufficient file-lines above and below the cursor, we can
|
|
* return now.
|
|
*/
|
|
cln = curwin->w_cursor.lnum;
|
|
if (cln >= curwin->w_topline + above_wanted
|
|
&& cln < curwin->w_botline - below_wanted
|
|
#ifdef FEAT_FOLDING
|
|
&& !hasAnyFolding(curwin)
|
|
#endif
|
|
)
|
|
return;
|
|
|
|
if (curwin->w_p_sms && !curwin->w_p_wrap)
|
|
{
|
|
// 'smoothscroll' is active
|
|
if (curwin->w_cline_height == curwin->w_height)
|
|
{
|
|
// The cursor line just fits in the window, don't scroll.
|
|
reset_skipcol();
|
|
return;
|
|
}
|
|
// TODO: If the cursor line doesn't fit in the window then only adjust
|
|
// w_skipcol.
|
|
}
|
|
|
|
/*
|
|
* Narrow down the area where the cursor can be put by taking lines from
|
|
* the top and the bottom until:
|
|
* - the desired context lines are found
|
|
* - the lines from the top is past the lines from the bottom
|
|
*/
|
|
topline = curwin->w_topline;
|
|
botline = curwin->w_botline - 1;
|
|
#ifdef FEAT_DIFF
|
|
// count filler lines as context
|
|
above = curwin->w_topfill;
|
|
below = curwin->w_filler_rows;
|
|
#endif
|
|
while ((above < above_wanted || below < below_wanted) && topline < botline)
|
|
{
|
|
if (below < below_wanted && (below <= above || above >= above_wanted))
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(botline, &botline, NULL))
|
|
++below;
|
|
else
|
|
#endif
|
|
below += plines(botline);
|
|
--botline;
|
|
}
|
|
if (above < above_wanted && (above < below || below >= below_wanted))
|
|
{
|
|
#ifdef FEAT_FOLDING
|
|
if (hasFolding(topline, NULL, &topline))
|
|
++above;
|
|
else
|
|
#endif
|
|
above += PLINES_NOFILL(topline);
|
|
#ifdef FEAT_DIFF
|
|
// Count filler lines below this line as context.
|
|
if (topline < botline)
|
|
above += diff_check_fill(curwin, topline + 1);
|
|
#endif
|
|
++topline;
|
|
}
|
|
}
|
|
if (topline == botline || botline == 0)
|
|
curwin->w_cursor.lnum = topline;
|
|
else if (topline > botline)
|
|
curwin->w_cursor.lnum = botline;
|
|
else
|
|
{
|
|
if (cln < topline && curwin->w_topline > 1)
|
|
{
|
|
curwin->w_cursor.lnum = topline;
|
|
curwin->w_valid &=
|
|
~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW);
|
|
}
|
|
if (cln > botline && curwin->w_botline <= curbuf->b_ml.ml_line_count)
|
|
{
|
|
curwin->w_cursor.lnum = botline;
|
|
curwin->w_valid &=
|
|
~(VALID_WROW|VALID_WCOL|VALID_CHEIGHT|VALID_CROW);
|
|
}
|
|
}
|
|
curwin->w_valid |= VALID_TOPLINE;
|
|
}
|
|
|
|
/*
|
|
* Decide how much overlap to use for page-up or page-down scrolling.
|
|
* This is symmetric, so that doing both keeps the same lines displayed.
|
|
* Three lines are examined:
|
|
*
|
|
* before CTRL-F after CTRL-F / before CTRL-B
|
|
* etc. l1
|
|
* l1 last but one line ------------
|
|
* l2 last text line l2 top text line
|
|
* ------------- l3 second text line
|
|
* l3 etc.
|
|
*/
|
|
static int get_scroll_overlap(int dir)
|
|
{
|
|
lineoff_T loff;
|
|
int min_height = curwin->w_height - 2;
|
|
|
|
validate_botline();
|
|
if ((dir == BACKWARD && curwin->w_topline == 1)
|
|
|| (dir == FORWARD && curwin->w_botline > curbuf->b_ml.ml_line_count))
|
|
return min_height + 2; // no overlap, still handle 'smoothscroll'
|
|
|
|
loff.lnum = dir == FORWARD ? curwin->w_botline : curwin->w_topline - 1;
|
|
#ifdef FEAT_DIFF
|
|
loff.fill = diff_check_fill(curwin, loff.lnum + (dir == BACKWARD))
|
|
- (dir == FORWARD ? curwin->w_filler_rows : curwin->w_topfill);
|
|
loff.height = loff.fill > 0 ? 1 : plines_nofill(loff.lnum);
|
|
#else
|
|
loff.height = plines(loff.lnum);
|
|
#endif
|
|
|
|
int h1 = loff.height;
|
|
if (h1 > min_height)
|
|
return min_height + 2; // no overlap
|
|
if (dir == FORWARD)
|
|
topline_back(&loff);
|
|
else
|
|
botline_forw(&loff);
|
|
|
|
int h2 = loff.height;
|
|
if (h2 == MAXCOL || h2 + h1 > min_height)
|
|
return min_height + 2; // no overlap
|
|
if (dir == FORWARD)
|
|
topline_back(&loff);
|
|
else
|
|
botline_forw(&loff);
|
|
|
|
int h3 = loff.height;
|
|
if (h3 == MAXCOL || h3 + h2 > min_height)
|
|
return min_height + 2; // no overlap
|
|
if (dir == FORWARD)
|
|
topline_back(&loff);
|
|
else
|
|
botline_forw(&loff);
|
|
|
|
int h4 = loff.height;
|
|
if (h4 == MAXCOL || h4 + h3 + h2 > min_height || h3 + h2 + h1 > min_height)
|
|
return min_height + 1; // 1 line overlap
|
|
else
|
|
return min_height; // 2 lines overlap
|
|
}
|
|
|
|
/*
|
|
* Scroll "count" lines with 'smoothscroll' in direction "dir". Return TRUE
|
|
* when scrolling happened. Adjust "curscount" for scrolling different amount of
|
|
* lines when 'smoothscroll' is disabled.
|
|
*/
|
|
static int scroll_with_sms(int dir, long count, long *curscount)
|
|
{
|
|
int prev_sms = curwin->w_p_sms;
|
|
colnr_T prev_skipcol = curwin->w_skipcol;
|
|
linenr_T prev_topline = curwin->w_topline;
|
|
#ifdef FEAT_DIFF
|
|
int prev_topfill = curwin->w_topfill;
|
|
#endif
|
|
|
|
curwin->w_p_sms = TRUE;
|
|
scroll_redraw(dir == FORWARD, count);
|
|
|
|
// Not actually smoothscrolling but ended up with partially visible line.
|
|
// Continue scrolling until skipcol is zero.
|
|
if (!prev_sms && curwin->w_skipcol > 0)
|
|
{
|
|
int fixdir = dir;
|
|
// Reverse the scroll direction when topline already changed. One line
|
|
// extra for scrolling backward so that consuming skipcol is symmetric.
|
|
if (labs(curwin->w_topline - prev_topline) > (dir == BACKWARD))
|
|
fixdir = dir * -1;
|
|
while (curwin->w_skipcol > 0
|
|
&& curwin->w_topline < curbuf->b_ml.ml_line_count)
|
|
{
|
|
scroll_redraw(fixdir == FORWARD, 1);
|
|
*curscount += (fixdir == dir ? 1 : -1);
|
|
}
|
|
}
|
|
curwin->w_p_sms = prev_sms;
|
|
|
|
return curwin->w_topline == prev_topline
|
|
#ifdef FEAT_DIFF
|
|
&& curwin->w_topfill == prev_topfill
|
|
#endif
|
|
&& curwin->w_skipcol == prev_skipcol;
|
|
}
|
|
|
|
/*
|
|
* Move screen "count" (half) pages up ("dir" is BACKWARD) or down ("dir" is
|
|
* FORWARD) and update the screen. Handle moving the cursor and not scrolling
|
|
* to reveal end of buffer lines for half-page scrolling with CTRL-D and CTRL-U.
|
|
*
|
|
* Return FAIL for failure, OK otherwise.
|
|
*/
|
|
int
|
|
pagescroll(int dir, long count, int half)
|
|
{
|
|
int nochange = TRUE;
|
|
int buflen = curbuf->b_ml.ml_line_count;
|
|
colnr_T prev_col = curwin->w_cursor.col;
|
|
colnr_T prev_curswant = curwin->w_curswant;
|
|
linenr_T prev_lnum = curwin->w_cursor.lnum;
|
|
oparg_T oa = { 0 };
|
|
cmdarg_T ca = { 0 };
|
|
ca.oap = &oa;
|
|
|
|
if (half)
|
|
{
|
|
// Scroll [count], 'scroll' or current window height lines.
|
|
if (count)
|
|
curwin->w_p_scr = MIN(curwin->w_height, count);
|
|
count = MIN(curwin->w_height, curwin->w_p_scr);
|
|
|
|
long curscount = count;
|
|
// Adjust count so as to not reveal end of buffer lines.
|
|
if (dir == FORWARD
|
|
&& (curwin->w_topline + curwin->w_height + count > buflen
|
|
#ifdef FEAT_FOLDING
|
|
|| hasAnyFolding(curwin)
|
|
#endif
|
|
))
|
|
{
|
|
int n = plines_correct_topline(curwin, curwin->w_topline, FALSE);
|
|
if (n - count < curwin->w_height && curwin->w_topline < buflen)
|
|
n += plines_m_win(curwin, curwin->w_topline + 1, buflen,
|
|
curwin->w_height + count);
|
|
if (n < curwin->w_height + count)
|
|
count = n - curwin->w_height;
|
|
}
|
|
|
|
// (Try to) scroll the window unless already at the end of the buffer.
|
|
if (count > 0)
|
|
{
|
|
nochange = scroll_with_sms(dir, count, &curscount);
|
|
curwin->w_cursor.lnum = prev_lnum;
|
|
curwin->w_cursor.col = prev_col;
|
|
curwin->w_curswant = prev_curswant;
|
|
}
|
|
|
|
// Move the cursor the same amount of screen lines.
|
|
if (curwin->w_p_wrap)
|
|
nv_screengo(&oa, dir, curscount);
|
|
else if (dir == FORWARD)
|
|
cursor_down_inner(curwin, curscount);
|
|
else
|
|
cursor_up_inner(curwin, curscount);
|
|
}
|
|
else
|
|
{
|
|
// Scroll [count] times 'window' or current window height lines.
|
|
count *= ((ONE_WINDOW && p_window > 0 && p_window < Rows - 1) ?
|
|
MAX(1, p_window - 2) : get_scroll_overlap(dir));
|
|
nochange = scroll_with_sms(dir, count, &count);
|
|
|
|
if (!nochange)
|
|
{
|
|
// Place cursor at top or bottom of window.
|
|
validate_botline();
|
|
linenr_T lnum = (dir == FORWARD ? curwin->w_topline
|
|
: curwin->w_botline - 1);
|
|
// In silent Ex mode the value of w_botline - 1 may be 0,
|
|
// but cursor lnum needs to be at least 1.
|
|
curwin->w_cursor.lnum = MAX(lnum, 1);
|
|
}
|
|
}
|
|
|
|
if (get_scrolloff_value() > 0)
|
|
cursor_correct();
|
|
#ifdef FEAT_FOLDING
|
|
// Move cursor to first line of closed fold.
|
|
foldAdjustCursor();
|
|
#endif
|
|
nochange = nochange
|
|
&& prev_col == curwin->w_cursor.col
|
|
&& prev_lnum == curwin->w_cursor.lnum;
|
|
|
|
// Error if both the viewport and cursor did not change.
|
|
if (nochange)
|
|
beep_flush();
|
|
else if (!curwin->w_p_sms)
|
|
beginline(BL_SOL | BL_FIX);
|
|
else if (p_sol)
|
|
nv_g_home_m_cmd(&ca);
|
|
|
|
return nochange;
|
|
}
|
|
|
|
void
|
|
do_check_cursorbind(void)
|
|
{
|
|
static win_T *prev_curwin = NULL;
|
|
static pos_T prev_cursor = {0, 0, 0};
|
|
|
|
if (curwin == prev_curwin && EQUAL_POS(curwin->w_cursor, prev_cursor))
|
|
return;
|
|
prev_curwin = curwin;
|
|
prev_cursor = curwin->w_cursor;
|
|
|
|
linenr_T line = curwin->w_cursor.lnum;
|
|
colnr_T col = curwin->w_cursor.col;
|
|
colnr_T coladd = curwin->w_cursor.coladd;
|
|
colnr_T curswant = curwin->w_curswant;
|
|
int set_curswant = curwin->w_set_curswant;
|
|
win_T *old_curwin = curwin;
|
|
buf_T *old_curbuf = curbuf;
|
|
int old_VIsual_select = VIsual_select;
|
|
int old_VIsual_active = VIsual_active;
|
|
|
|
/*
|
|
* loop through the cursorbound windows
|
|
*/
|
|
VIsual_select = VIsual_active = 0;
|
|
FOR_ALL_WINDOWS(curwin)
|
|
{
|
|
curbuf = curwin->w_buffer;
|
|
// skip original window and windows with 'nocursorbind'
|
|
if (curwin != old_curwin && curwin->w_p_crb)
|
|
{
|
|
# ifdef FEAT_DIFF
|
|
if (curwin->w_p_diff)
|
|
curwin->w_cursor.lnum =
|
|
diff_get_corresponding_line(old_curbuf, line);
|
|
else
|
|
# endif
|
|
curwin->w_cursor.lnum = line;
|
|
curwin->w_cursor.col = col;
|
|
curwin->w_cursor.coladd = coladd;
|
|
curwin->w_curswant = curswant;
|
|
curwin->w_set_curswant = set_curswant;
|
|
|
|
// Make sure the cursor is in a valid position. Temporarily set
|
|
// "restart_edit" to allow the cursor to be beyond the EOL.
|
|
int restart_edit_save = restart_edit;
|
|
restart_edit = 'a';
|
|
check_cursor();
|
|
|
|
// Avoid a scroll here for the cursor position, 'scrollbind' is
|
|
// more important.
|
|
if (!curwin->w_p_scb)
|
|
validate_cursor();
|
|
|
|
restart_edit = restart_edit_save;
|
|
// Correct cursor for multi-byte character.
|
|
if (has_mbyte)
|
|
mb_adjust_cursor();
|
|
redraw_later(UPD_VALID);
|
|
|
|
// Only scroll when 'scrollbind' hasn't done this.
|
|
if (!curwin->w_p_scb)
|
|
update_topline();
|
|
curwin->w_redr_status = TRUE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* reset current-window
|
|
*/
|
|
VIsual_select = old_VIsual_select;
|
|
VIsual_active = old_VIsual_active;
|
|
curwin = old_curwin;
|
|
curbuf = old_curbuf;
|
|
}
|