Initial revision

2005-04-21 14:53:53 +00:00
commit 9865aeaa79
2264 changed files with 411685 additions and 0 deletions
@@ -0,0 +1,72 @@
+/* refresh.c */
+
+#include <curses.h>
+#include "curspriv.h"
+
+/* Wrefresh() updates window win's area of the physical screen.	*/
+void wrefresh(win)
+WINDOW *win;
+{
+  if (win == curscr)
+	curscr->_clear = TRUE;
+  else
+	wnoutrefresh(win);
+  doupdate();
+}
+
+/****************************************************************/
+/* Wnoutrefresh() updates the image of the desired screen,	*/
+/* Without doing physical update (copies window win's image to	*/
+/* The _cursvar.tmpwin window, which is hidden from the user).	*/
+/****************************************************************/
+
+void wnoutrefresh(win)
+register WINDOW *win;
+{
+  register int *dst;		/* start destination in temp window */
+  register int *end;		/* end destination in temp window */
+  register int *src;		/* source in user window */
+  register int first;		/* first changed char on line */
+  register int last;		/* last changed char on line */
+  WINDOW *nscr;
+  int begy;			/* window's place on screen */
+  int begx;
+  int i;
+  int j;
+
+  nscr = _cursvar.tmpwin;
+  begy = win->_begy;
+  begx = win->_begx;
+
+  for (i = 0, j = begy; i <= win->_maxy; i++, j++) {
+	if (win->_minchng[i] != _NO_CHANGE) {
+		first = win->_minchng[i];
+		last = win->_maxchng[i];
+		dst = &(nscr->_line[j][begx + first]);
+		end = &(nscr->_line[j][begx + last]);
+		src = &(win->_line[i][first]);
+
+		while (dst <= end)	/* copy user line to temp window */
+			*dst++ = *src++;
+
+		first += begx;	/* nscr's min/max change positions */
+		last += begx;
+
+		if ((nscr->_minchng[j] == _NO_CHANGE) || (nscr->_minchng[j] > first))
+			nscr->_minchng[j] = first;
+		if (last > nscr->_maxchng[j]) nscr->_maxchng[j] = last;
+
+		win->_minchng[i] = _NO_CHANGE;	/* updated now */
+	}			/* if */
+	win->_maxchng[i] = _NO_CHANGE;	/* updated now */
+  }				/* for */
+
+  if (win->_clear) {
+	win->_clear = FALSE;
+	nscr->_clear = TRUE;
+  }				/* if */
+  if (!win->_leave) {
+	nscr->_cury = win->_cury + begy;
+	nscr->_curx = win->_curx + begx;
+  }				/* if */
+}				/* wnoutrefresh */