texinfo/info/display.c

0 /* display.c -- How to display Info windows.
2    $Id: display.c,v 1.7 2004/04/11 17:56:45 karl Exp $
23 #include "display.h"
27 static void free_display (DISPLAY_LINE **display);
34 /* An array of display lines which tell us what is currently visible on
35    the display.  */
52 display_clear_display (DISPLAY_LINE **display)
56   for (i = 0; display[i]; i++)
58       display[i]->text[0] = '\0';
59       display[i]->textlen = 0;
60       display[i]->inverse = 0;
76   /* For every window in the list, check contents against the display. */
79       /* Only re-display visible windows which need updating. */
125   register char *nodetext;      /* Current character to display. */
133   DISPLAY_LINE **display = the_display;
135   /* If display is inhibited, that counts as an interrupted display. */
139   /* If the window has no height, or display is inhibited, quit now. */
151      check the contents of that buffer against the display.  If they
152      differ, update the display. */
295           entry = display[line_index + win->first_row];
338               /* Update the display text buffer. */
361              now, instead of continuing with the display. */
402       DISPLAY_LINE *entry = display[line_index + win->first_row];
416      Check the window's modeline against the one in the display, and update
423       /* This display line must both be in inverse, and have the same
425       if ((!display[line_index]->inverse) ||
426           (strcmp (display[line_index]->text, win->modeline) != 0))
432           strcpy (display[line_index]->text, win->modeline);
433           display[line_index]->inverse = 1;
434           display[line_index]->textlen = strlen (win->modeline);
472   /* Now do it in the display buffer so our contents match the screen. */
616   DISPLAY_LINE **display;
618   display = (DISPLAY_LINE **)xmalloc ((1 + height) * sizeof (DISPLAY_LINE *));
622       display[i] = (DISPLAY_LINE *)xmalloc (sizeof (DISPLAY_LINE));
623       display[i]->text = (char *)xmalloc (1 + width);
624       display[i]->textlen = 0;
625       display[i]->inverse = 0;
627   display[i] = (DISPLAY_LINE *)NULL;
628   return (display);
633 free_display (DISPLAY_LINE **display)
638   if (!display)
641   for (i = 0; (display_line = display[i]); i++)
646   free (display);