/* * ttycurses.c -- An application that uses a tty subwindow that * emulates a tty so well, you can use curses(3x) routines in it. * This program does not handle resizes -- resizing the base frame * produces unpredictable results. To handle resizing properly, * the application should install a resize event handler and * call endwin() followed by initscr() to reinitialize curses * to reflect the size of the window. * * cc ttycurses.c -lxview -lcurses -ltermlib */ #include <curses.h> #undef WINDOW /* defined by curses.h -- needs to be undefined */ #include <xview/xview.h> #include <xview/panel.h> #include <xview/textsw.h> #include <xview/tty.h> /* panel items contain the x,y info for outputting text to the ttysw */ Panel_item x_item, y_item, text_item; main(argc,argv) int argc; char *argv[]; { Frame frame; Panel panel; Tty ttysw; char buf[16]; void output(), exit(); xv_init(XV_INIT_ARGC_PTR_ARGV, &argc, argv, NULL); frame = xv_create(XV_NULL, FRAME, FRAME_LABEL, argv[0], FRAME_SHOW_FOOTER, TRUE, NULL); panel = (Frame)xv_create(frame, PANEL, NULL); (void) xv_create(panel, PANEL_BUTTON, PANEL_LABEL_STRING, "Quit", PANEL_NOTIFY_PROC, exit, NULL); (void) xv_create(panel, PANEL_BUTTON, PANEL_LABEL_STRING, "Print", PANEL_NOTIFY_PROC, output, NULL); x_item = (Panel_item)xv_create(panel, PANEL_NUMERIC_TEXT, PANEL_LABEL_STRING, "X:", PANEL_VALUE_DISPLAY_LENGTH, 3, NULL); y_item = (Panel_item)xv_create(panel, PANEL_NUMERIC_TEXT, PANEL_LABEL_STRING, "Y:", PANEL_VALUE_DISPLAY_LENGTH, 3, NULL); text_item = (Panel_item)xv_create(panel, PANEL_TEXT, PANEL_LABEL_STRING, "Text:", PANEL_VALUE_DISPLAY_LENGTH, 10, PANEL_VALUE, "X", NULL); window_fit(panel); ttysw = (Tty)xv_create(frame, TTY, WIN_BELOW, panel, WIN_X, 0, TTY_ARGV, TTY_ARGV_DO_NOT_FORK, NULL); window_fit(frame); dup2((int)xv_get(ttysw, TTY_TTY_FD), 0); /* dup2 closes 0 first */ dup2((int)xv_get(ttysw, TTY_TTY_FD), 1); /* dup2 closes 1 first */ /* initscr() initializes the curses package and determines * characteristics about the window as if it were a terminal. * The curses specific variables, LINES and COLS are now set * to the row and column sizes of the window. */ initscr(); xv_set(x_item, PANEL_MAX_VALUE, COLS-1, NULL); xv_set(y_item, PANEL_MAX_VALUE, LINES-1, NULL); sprintf(buf, "LINES: %d", LINES-1); xv_set(frame, FRAME_LEFT_FOOTER, buf, NULL); sprintf(buf, "COLS: %d", COLS-1); xv_set(frame, FRAME_RIGHT_FOOTER, buf, NULL); xv_main_loop(frame); } /* * callback routine for the <print> panel button. Get the corrdinates * and the text to print on the tty subwindow and use curses library * routines to render the text. */ void output() { int x = (int)xv_get(x_item, PANEL_VALUE); int y = (int)xv_get(y_item, PANEL_VALUE); char *text = (char *)xv_get(text_item, PANEL_VALUE); mvaddstr(y, x, text); refresh(); }