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wscrl: implement partial scrolling via al/dl
winsdel: implemented via wscrl winsertln/deleteln: implemented as macros via winsdel
This commit is contained in:
Andrey A. Chernov
parent
f3be64932f
commit
1f36118a96
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=4860
@ -1,5 +1,5 @@
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# Makefile for ncurses
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# $Id: Makefile,v 1.5 1994/10/12 01:59:06 ache Exp $
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# $Id: Makefile,v 1.6 1994/10/28 06:56:55 ache Exp $
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LIB= ncurses
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SRCS= lib_kernel.c lib_pad.c\
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@ -8,8 +8,8 @@ SRCS= lib_kernel.c lib_pad.c\
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lib_addstr.c lib_scroll.c lib_clreol.c lib_touch.c lib_mvcur.c lib_keyname.c\
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lib_delwin.c lib_endwin.c lib_clrbot.c lib_move.c lib_printw.c \
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lib_scanw.c lib_erase.c lib_getch.c lib_options.c lib_acs.c lib_slk.c\
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lib_box.c lib_clear.c lib_delch.c lib_deleteln.c lib_insch.c \
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lib_insertln.c lib_getstr.c lib_mvwin.c lib_longname.c lib_tstp.c \
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lib_box.c lib_clear.c lib_delch.c lib_insch.c \
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lib_getstr.c lib_mvwin.c lib_longname.c lib_tstp.c \
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lib_newterm.c lib_set_term.c lib_overlay.c lib_scrreg.c lib_color.c \
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lib_insstr.c lib_insdel.c lib_twait.c copyright.c
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@ -19,11 +19,7 @@
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int
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winsdel(WINDOW *win, int n)
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{
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int line, i;
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int touched = 0;
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chtype *ptr, *temp;
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chtype **saved;
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chtype blank = ' ';
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int ret, sscroll, stop, sbot;
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T(("winsdel(%x,%d) called", win, n));
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@ -34,88 +30,20 @@ chtype blank = ' ';
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/* should we truncate to an appropriate number? */
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return ERR;
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sscroll = win->_scroll;
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stop = win->_regtop;
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sbot = win->_regbottom;
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saved = (chtype **)malloc(sizeof(chtype *) * abs(n));
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win->_scroll = TRUE;
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win->_regtop = win->_cury;
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if (win->_regtop > win->_regbottom)
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win->_regbottom = win->_maxy;
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if (n < 0) {
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/* save overwritten lines */
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for (i = 0; i < -n; i++)
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saved[i] = win->_line[win->_regbottom-i];
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ret = wscrl(win, -n);
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/* delete n lines */
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for (line = win->_regbottom; line >= win->_cury; line--)
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win->_line[line] = win->_line[line+n];
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win->_scroll = sscroll;
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win->_regtop = stop;
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win->_regbottom = sbot;
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/* restore saved lines and blank them */
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for (i = 0, line = win->_regtop; line < win->_regtop-n; line++, i++) {
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win->_line[line] = saved[i];
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temp = win->_line[line];
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for (ptr = temp; ptr - temp <= win->_maxx; ptr++)
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*ptr = blank;
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}
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}
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if (n > 0) {
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/* save overwritten lines */
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for (i = 0; i < n; i++)
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saved[i] = win->_line[win->_regtop+i];
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/* insert n lines */
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for (line = win->_regtop; line < win->_regtop + n; line++)
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win->_line[line] = win->_line[line+n];
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/* restore saved lines and blank them */
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for (i = 0, line = win->_regtop + n; i < n; line--, i++) {
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temp = win->_line[line] = saved[i];
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for (ptr = temp; ptr - temp <= win->_maxx; ptr++)
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*ptr = blank;
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}
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}
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free(saved);
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/* as an optimization, if the window is COLS wide we can try
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using idl assuming _idlok is true */
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if (win->_maxx == columns && win->_idlok == TRUE) {
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wrefresh(win);
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if (n > 0) {
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mvcur(-1, -1, win->_cury, 0);
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if (parm_insert_line) {
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putp(tparm(parm_insert_line, n));
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touched = 1;
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} else if (insert_line) {
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while (n--)
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putp(insert_line);
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touched = 1;
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}
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}
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if (n < 0) {
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mvcur(-1, -1, win->_cury, 0);
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n = abs(n);
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if (parm_delete_line) {
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putp(tparm(parm_delete_line, n));
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touched = 1;
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} else if (delete_line) {
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while (n--)
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putp(delete_line);
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touched = 1;
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}
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}
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mvcur(-1, -1, win->_cury, win->_curx);
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}
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if (touched == 0)
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touchline(win, win->_regtop, win->_regbottom - win->_regtop + 1);
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touched = 0;
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return OK;
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return ret;
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}
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@ -19,9 +19,9 @@
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int
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wscrl(WINDOW *win, int n)
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{
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int line, i;
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int line, i, touched = 0;
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chtype *ptr, *temp;
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chtype **saved;
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chtype **saved, **newsaved = NULL, **cursaved = NULL;
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chtype blank = ' ';
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T(("wscrl(%x,%d) called", win, n));
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@ -34,88 +34,191 @@ chtype blank = ' ';
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/* test for scrolling region == entire screen */
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saved = (chtype **)malloc(sizeof(chtype *) * abs(n));
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if (n < 0) {
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/* save overwritten lines */
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for (i = 0; i < -n; i++)
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saved[i] = win->_line[win->_regbottom-i];
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/* shift n lines */
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for (line = win->_regbottom; line > win->_regtop+n; line--)
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win->_line[line] = win->_line[line+n];
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/* restore saved lines and blank them */
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for (i = 0, line = win->_regtop; line < win->_regtop-n; line++, i++) {
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win->_line[line] = saved[i];
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temp = win->_line[line];
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for (ptr = temp; ptr - temp <= win->_maxx; ptr++)
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*ptr = blank;
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}
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}
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if (n > 0) {
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/* save overwritten lines */
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for (i = 0; i < n; i++)
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saved[i] = win->_line[win->_regtop+i];
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/* shift n lines */
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for (line = win->_regtop; line < win->_regbottom; line++)
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win->_line[line] = win->_line[line+n];
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/* restore saved lines and blank them */
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for (i = 0, line = win->_regbottom; line > win->_regbottom - n; line--, i++) {
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win->_line[line] = saved[i];
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temp = win->_line[line];
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for (ptr = temp; ptr - temp <= win->_maxx; ptr++)
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*ptr = blank;
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}
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}
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free(saved);
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/* as an optimization, if the scrolling region is the entire screen
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scroll the physical screen */
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/* should we extend this to include smaller scrolling ranges by using
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change_scroll_region? */
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if (win->_maxx == columns && win->_regtop == 0 && win->_regbottom == lines) {
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if ( win->_begx == 0 && win->_maxx == columns - 1
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&& !memory_above && !memory_below
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&& ((win->_regtop == 0 && win->_regbottom == lines - 1
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&& ( (n < 0 && (parm_rindex || scroll_reverse))
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|| (n > 0 && (parm_index || scroll_forward))
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)
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) || (win->_idlok && (parm_insert_line || insert_line)
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&& (parm_delete_line || delete_line)
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)
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)
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) {
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wrefresh(win);
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/* at the moment this relies on scroll_reverse and scroll_forward
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or parm_rindex and parm_index.
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we should add idl support as an alternative */
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if (n > 0) {
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mvcur(-1, -1, win->_regtop, 0);
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if (parm_rindex) {
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putp(tparm(parm_rindex, n));
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} else if (scroll_reverse) {
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while (n--)
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putp(scroll_reverse);
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}
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}
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if (n < 0) {
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mvcur(-1, -1, win->_regbottom, columns);
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n = abs(n);
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if (parm_index) {
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putp(tparm(parm_index, n));
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} else if (scroll_forward) {
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while (n--)
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putp(scroll_forward);
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if ( win->_regtop == 0 && win->_regbottom == lines - 1
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&& (parm_rindex || scroll_reverse)
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) {
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i = abs(n);
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mvcur(-1, -1, win->_regtop, 0);
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if (parm_rindex) {
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putp(tparm(parm_rindex, i));
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} else if (scroll_reverse) {
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while (i--)
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putp(scroll_reverse);
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}
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} else {
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i = abs(n);
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if (win->_regbottom < lines - 1) {
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mvcur(-1, -1, win->_regbottom, 0);
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if (parm_delete_line) {
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putp(tparm(parm_delete_line, i));
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} else if (delete_line) {
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while (i--)
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putp(delete_line);
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i = abs(n);
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}
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}
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mvcur(-1, -1, win->_regtop, 0);
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if (parm_insert_line) {
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putp(tparm(parm_insert_line, i));
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} else if (insert_line) {
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while (i--)
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putp(insert_line);
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}
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}
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} else {
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if ( win->_regtop == 0 && win->_regbottom == lines - 1
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&& (parm_index || scroll_forward)
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) {
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mvcur(-1, -1, win->_regbottom, 0);
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if (parm_index) {
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putp(tparm(parm_index, n));
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} else if (scroll_forward) {
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i = n;
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while (i--)
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putp(scroll_forward);
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}
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} else {
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mvcur(-1, -1, win->_regtop, 0);
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if (parm_delete_line) {
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putp(tparm(parm_delete_line, n));
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} else if (delete_line) {
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i = n;
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while (i--)
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putp(delete_line);
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}
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if (win->_regbottom < lines - 1) {
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mvcur(win->_regtop, 0, win->_regbottom, 0);
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if (parm_insert_line) {
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putp(tparm(parm_insert_line, n));
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} else if (insert_line) {
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i = n;
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while (i--)
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putp(insert_line);
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}
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}
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}
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}
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mvcur(-1, -1, win->_cury, win->_curx);
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} else
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touchline(win, win->_regtop, win->_regbottom - win->_regtop + 1);
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touched = 1;
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}
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saved = (chtype **)malloc(sizeof(chtype *) * abs(n));
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if (touched) {
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newsaved = (chtype **)malloc(sizeof(chtype *) * abs(n));
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cursaved = (chtype **)malloc(sizeof(chtype *) * abs(n));
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}
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if (n < 0) {
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/* save overwritten lines */
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for (i = 0; i < -n; i++) {
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saved[i] = win->_line[win->_regbottom-i];
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if (touched) {
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newsaved[i] = newscr->_line[win->_begy+win->_regbottom-i];
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cursaved[i] = curscr->_line[win->_begy+win->_regbottom-i];
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}
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}
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/* shift n lines */
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for (line = win->_regbottom; line >= win->_regtop - n; line--) {
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win->_line[line] = win->_line[line+n];
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if (touched) {
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newscr->_line[win->_begy+line] = newscr->_line[win->_begy+line+n];
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curscr->_line[win->_begy+line] = curscr->_line[win->_begy+line+n];
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}
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}
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/* restore saved lines and blank them */
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for (i = 0, line = win->_regtop; line < win->_regtop-n; line++, i++) {
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win->_line[line] = saved[i];
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if (touched) {
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newscr->_line[win->_begy+line] = newsaved[i];
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curscr->_line[win->_begy+line] = cursaved[i];
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}
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temp = win->_line[line];
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for (ptr = temp; ptr - temp <= win->_maxx; ptr++)
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*ptr = blank;
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if (touched) {
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temp = newscr->_line[win->_begy+line];
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for (ptr = temp; ptr - temp <= newscr->_maxx; ptr++)
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*ptr = blank;
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temp = curscr->_line[win->_begy+line];
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for (ptr = temp; ptr - temp <= curscr->_maxx; ptr++)
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*ptr = blank;
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}
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}
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} else {
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/* save overwritten lines */
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for (i = 0; i < n; i++) {
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saved[i] = win->_line[win->_regtop+i];
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if (touched) {
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newsaved[i] = newscr->_line[win->_begy+win->_regtop+i];
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cursaved[i] = curscr->_line[win->_begy+win->_regtop+i];
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}
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}
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/* shift n lines */
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for (line = win->_regtop; line <= win->_regbottom - n; line++) {
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win->_line[line] = win->_line[line+n];
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if (touched) {
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newscr->_line[win->_begy+line] = newscr->_line[win->_begy+line+n];
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curscr->_line[win->_begy+line] = curscr->_line[win->_begy+line+n];
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}
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}
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/* restore saved lines and blank them */
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for (i = 0, line = win->_regbottom; line > win->_regbottom - n; line--, i++) {
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win->_line[line] = saved[i];
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if (touched) {
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newscr->_line[win->_begy+line] = newsaved[i];
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curscr->_line[win->_begy+line] = cursaved[i];
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}
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temp = win->_line[line];
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for (ptr = temp; ptr - temp <= win->_maxx; ptr++)
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*ptr = blank;
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if (touched) {
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temp = newscr->_line[win->_begy+line];
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for (ptr = temp; ptr - temp <= newscr->_maxx; ptr++)
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*ptr = blank;
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temp = curscr->_line[win->_begy+line];
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for (ptr = temp; ptr - temp <= curscr->_maxx; ptr++)
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*ptr = blank;
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}
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}
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}
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free(saved);
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if (touched) {
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free(newsaved);
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free(cursaved);
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}
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if (!touched)
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touchline(win, win->_regtop, win->_regbottom - win->_regtop + 1);
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return OK;
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}
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@ -240,14 +240,12 @@ extern int wclear(WINDOW *);
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extern int wclrtobot(WINDOW *);
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extern int wclrtoeol(WINDOW *);
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extern int wdelch(WINDOW *);
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extern int wdeleteln(WINDOW *);
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extern int werase(WINDOW *);
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extern int wgetch(WINDOW *);
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extern int wgetnstr(WINDOW *,char *,int maxlen);
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extern int whline(WINDOW *,chtype,int);
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extern int winsch(WINDOW *,chtype);
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extern int winsdel(WINDOW *,int);
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extern int winsertln(WINDOW *);
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extern int winsnstr(WINDOW *,char *,int);
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extern int wmove(WINDOW *,int,int);
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extern int wnoutrefresh(WINDOW *);
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@ -327,6 +325,8 @@ extern int slk_touch(void);
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#define vline(ch, n) wvline(stdscr, ch, n)
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#define winsstr(w, s) winsnstr(w, s, 0)
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#define winsertln(w) winsdel(w, 1)
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#define wdeleteln(w) winsdel(w, -1)
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#define redrawwin(w) redrawln(w, 0, w->_maxy+1)
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@ -1,5 +1,5 @@
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# Makefile for ncurses
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# $Id: Makefile,v 1.5 1994/10/12 01:59:06 ache Exp $
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# $Id: Makefile,v 1.6 1994/10/28 06:56:55 ache Exp $
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LIB= ncurses
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SRCS= lib_kernel.c lib_pad.c\
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@ -8,8 +8,8 @@ SRCS= lib_kernel.c lib_pad.c\
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lib_addstr.c lib_scroll.c lib_clreol.c lib_touch.c lib_mvcur.c lib_keyname.c\
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lib_delwin.c lib_endwin.c lib_clrbot.c lib_move.c lib_printw.c \
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lib_scanw.c lib_erase.c lib_getch.c lib_options.c lib_acs.c lib_slk.c\
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lib_box.c lib_clear.c lib_delch.c lib_deleteln.c lib_insch.c \
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lib_insertln.c lib_getstr.c lib_mvwin.c lib_longname.c lib_tstp.c \
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lib_box.c lib_clear.c lib_delch.c lib_insch.c \
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lib_getstr.c lib_mvwin.c lib_longname.c lib_tstp.c \
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lib_newterm.c lib_set_term.c lib_overlay.c lib_scrreg.c lib_color.c \
|
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lib_insstr.c lib_insdel.c lib_twait.c copyright.c
|
||||
|
||||
|
||||
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Reference in New Issue
Block a user