boilerplate for ncurses interface

viz/curses/7segments.c

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+/*
+ *		DD2 Monitoring
+ *
+ *	ncurses seven segment display
+ */
+
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <strings.h>
+#include  <getopt.h>
+#include  <ncurses.h>
+
+
+#include  "ecran.h"
+
+int	verbosity;
+
+/* ---------------------------------------------------------------- */
+
+/* ---------------------------------------------------------------- */
+

viz/curses/Makefile

@@ -0,0 +1,21 @@
+
+
+# ---------------				***
+
+ecran.o:	ecran.c Makefile ecran.h
+	gcc -Wall -c $< 
+
+7segments.o:	7segments.c Makefile
+	gcc -Wall -c $< 
+
+waterfall.o:	waterfall.c Makefile
+	gcc -Wall -c $< 
+
+# ---------------				***
+
+OBJ = ecran.o waterfall.o 7segments.o
+
+t:	t.c Makefile $(OBJ) ecran.h
+	gcc -Wall $< $(OBJ) -lncurses -o $@
+
+# ---------------				***

viz/curses/README.md

@@ -0,0 +1,2 @@
+# Dataviz with AsciiArt
+

viz/curses/ecran.c

@@ -0,0 +1,50 @@
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <strings.h>
+#include  <getopt.h>
+#include  <ncurses.h>
+
+
+#include  "ecran.h"
+
+int	verbosity;
+
+/* ---------------------------------------------------------------- */
+/* ---------------------------------------------------------------- */
+void barre_inverse(char c, int ligne)
+{
+int     foo;
+standout();
+for (foo=0; foo<COLS; foo++)
+        mvaddch(ligne, foo, c);
+standend();
+/* refresh(); */
+}
+/* ---------------------------------------------------------------- */
+int fond_ecran(void)
+{
+#if TRACE
+int     foo;
+char    buffer[200];
+#endif
+
+barre_inverse('+', 0);
+standout();
+mvaddstr(0, 2, " DD2 MONITORING by tTh 2019 ");
+#if TRACE
+sprintf(buffer, " ecran %dx%d ", COLS, LINES);
+foo = strlen(buffer);
+mvaddstr(0, COLS-2-foo, buffer);
+#endif
+standend();
+refresh();
+
+#if TRACE
+fprintf(stderr, "HAUT   %3d\n", HAUT);
+fprintf(stderr, "HAUT_1 %3d  BARRE_1 %3d\n", HAUT_1, BARRE_1);
+fprintf(stderr, "HAUT_2 %3d  BARRE_2 %3d\n", HAUT_2, BARRE_2);
+#endif
+
+return 0;
+}
+/* ---------------------------------------------------------------- */

viz/curses/ecran.h

@@ -0,0 +1,6 @@
+
+
+int fond_ecran(void);
+
+
+WINDOW * open_waterfall(char *title, int flags);

viz/curses/t.c

@@ -0,0 +1,73 @@
+#include  <stdio.h>
+#include <unistd.h>
+#include  <stdlib.h>
+#include  <strings.h>
+#include  <getopt.h>
+#include  <ncurses.h>
+
+#include  "ecran.h"
+
+int	verbosity;
+
+/* ---------------------------------------------------------------- */
+void demo(int nbl, int k)
+{
+int	loop;
+char	line[100];
+WINDOW	*water;
+
+water = open_waterfall("premier essai", 0);
+
+for (loop=0; loop<nbl; loop++) {
+
+	sprintf(line, "%04X %04X", loop, rand()&0xffff);
+	mvaddstr(5, 5, line);
+
+	sleep(1);
+	refresh();
+	}
+}
+/* ---------------------------------------------------------------- */
+static void finish(int signal)
+{
+endwin();       exit(0);
+}
+/* ---------------------------------------------------------------- */
+int main (int argc, char *argv[])
+{
+int		opt;
+
+/* set some default values */
+verbosity	= 0;
+
+
+while ((opt = getopt(argc, argv, "v")) != -1) {
+	switch (opt) {
+		case 'v':	verbosity++;		break;
+
+		default:
+			fprintf(stderr, "%s : uh ?", argv[0]);
+			exit(1);
+			break;
+		}
+
+	}
+
+
+initscr();
+nonl();         cbreak();       noecho();
+
+keypad(stdscr, TRUE);           /* acces aux touches 'curseur' */
+
+fond_ecran();
+
+demo(1024, 0);
+
+/*
+ *      plop, on a fini, restaurer la console
+ */
+finish(0);
+
+return 0;
+}
+/* ---------------------------------------------------------------- */

viz/curses/waterfall.c

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+/*
+ *		DD2 Monitoring
+ *
+ *	ncurses waterfall interface
+ */
+
+
+#include  <stdio.h>
+#include  <stdlib.h>
+#include  <strings.h>
+#include  <getopt.h>
+#include  <ncurses.h>
+
+
+#include  "ecran.h"
+
+extern int	verbosity;
+
+/* ---------------------------------------------------------------- */
+WINDOW *open_waterfall(char *title, int flags)
+{
+WINDOW		*win;
+int		l, c, w, h;
+
+l = 2;			c = 1;
+w = COLS - 2;		h = LINES -3;
+
+win = newwin(h, w, l, c);
+
+return win;
+}
+/* ---------------------------------------------------------------- */
+int plot_waterfall(WINDOW *wf, float values[4])
+{
+#define TL 1000
+int	foo;
+char	tag, ligne[TL+1];
+
+for(foo=0; foo<TL; foo++)	*(ligne+foo) = '-';
+
+for(foo=0; foo<4; foo++) {
+	tag = "ATOX"[foo];
+	
+	}
+
+return -1;
+}
+/* ---------------------------------------------------------------- */
+int close_waterfall(WINDOW *wf, int notused)
+{
+
+if (NULL == wf) {
+	fprintf(stderr, "%s wf is null\n", __func__);
+	return -1;
+	}
+
+return 0;
+}
+/* ---------------------------------------------------------------- */