Status display

Alows to show status of current channels and users

src/common/Makefile.am

@@ -27,6 +27,7 @@ libcommon_a_SOURCES = \
 	../common/fm_modulation.c \
 	../common/sender.c \
 	../common/display_wave.c \
+	../common/display_status.c \
 	../common/main_common.c
 
 if HAVE_SDR

src/common/debug.c

@@ -97,12 +97,14 @@ void _printdebug(const char *file, const char __attribute__((unused)) *function,
 	clear_console_text();
 //	printf("%s%s:%d %s() %s: %s\033[0;39m", debug_cat[cat].color, file, line, function, debug_level[level], buffer);
 	display_wave_limit_scroll(1);
+	display_status_limit_scroll(1);
 #ifdef HAVE_SDR
 	display_iq_limit_scroll(1);
 	display_spectrum_limit_scroll(1);
 #endif
 	printf("%s%s:%d %s: %s\033[0;39m", debug_cat[cat].color, file, line, debug_level[level], buffer);
 	display_wave_limit_scroll(0);
+	display_status_limit_scroll(0);
 #ifdef HAVE_SDR
 	display_iq_limit_scroll(0);
 	display_spectrum_limit_scroll(0);

src/common/display.h

@@ -28,6 +28,8 @@ typedef struct display_spectrum {
 	double	buffer_Q[MAX_DISPLAY_SPECTRUM];
 } dispspectrum_t;
 
+#define MAX_HEIGHT_STATUS 32
+
 void get_win_size(int *w, int *h);
 
 void display_wave_init(sender_t *sender, int samplerate);
@@ -35,6 +37,13 @@ void display_wave_on(int on);
 void display_wave_limit_scroll(int on);
 void display_wave(sender_t *sender, sample_t *samples, int length, double range);
 
+void display_status_on(int on);
+void display_status_limit_scroll(int on);
+void display_status_start(void);
+void display_status_channel(int channel, const char *type, const char *state);
+void display_status_subscriber(const char *number, const char *state);
+void display_status_end(void);
+
 void display_iq_init(int samplerate);
 void display_iq_on(int on);
 void display_iq_limit_scroll(int on);
@@ -44,3 +53,4 @@ void display_spectrum_init(int samplerate);
 void display_spectrum_on(int on);
 void display_spectrum_limit_scroll(int on);
 void display_spectrum(float *samples, int length);
+

src/common/display_status.c

@@ -0,0 +1,147 @@
+/* display status functions
+ *
+ * (C) 2017 by Andreas Eversberg <jolly@eversberg.eu>
+ * All Rights Reserved
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <string.h>
+#include <pthread.h>
+#include <sys/ioctl.h>
+#include "sample.h"
+#include "sender.h"
+
+static int status_on = 0;
+static int line_count = 0;
+static int lines_total = 0;
+static char screen[MAX_HEIGHT_STATUS][MAX_DISPLAY_WIDTH];
+
+void print_status(int on)
+{
+	int i, j;
+	int w, h;
+
+	get_win_size(&w, &h);
+
+	if (w > MAX_DISPLAY_WIDTH)
+		w = MAX_DISPLAY_WIDTH;
+	h--;
+	if (h > lines_total)
+		h = lines_total;
+
+	printf("\0337\033[H\033[1;37m");
+	for (i = 0; i < h; i++) {
+		j = 0;
+		if (on) {
+			for (j = 0; j < w; j++)
+				putchar(screen[i][j]);
+		} else {
+			for (j = 0; j < w; j++)
+				putchar(' ');
+		}
+		putchar('\n');
+	}
+	printf("\0338"); fflush(stdout);
+}
+
+void display_status_on(int on)
+{
+	if (status_on)
+		print_status(0);
+
+	if (on < 0)
+		status_on = 1 - status_on;
+	else
+		status_on = on;
+
+	if (status_on)
+		print_status(1);
+}
+
+void display_status_limit_scroll(int on)
+{
+	int w, h;
+
+	if (!status_on)
+		return;
+
+	get_win_size(&w, &h);
+
+	printf("\0337");
+	printf("\033[%d;%dr", (on) ? lines_total + 1 : 1, h);
+	printf("\0338");
+}
+
+/* start status display */
+void display_status_start(void)
+{
+	memset(screen, ' ', sizeof(screen));
+	memset(screen[0], '-', sizeof(screen[0]));
+	strncpy(screen[0] + 4, "Channel Status", 14);
+	line_count = 1;
+}
+
+void display_status_channel(int channel, const char *type, const char *state)
+{
+	char line[MAX_DISPLAY_WIDTH];
+
+	/* add empty line after previous channel+subscriber */
+	if (line_count > 1 && line_count < MAX_HEIGHT_STATUS)
+		line_count++;
+
+	if (line_count == MAX_HEIGHT_STATUS)
+		return;
+
+	if (type)
+		snprintf(line, sizeof(line), "Channel: %d Type: %s State: %s", channel, type, state);
+	else
+		snprintf(line, sizeof(line), "Channel: %d State: %s", channel, state);
+	line[sizeof(line) - 1] = '\0';
+	strncpy(screen[line_count++], line, strlen(line));
+}
+
+void display_status_subscriber(const char *number, const char *state)
+{
+	char line[MAX_DISPLAY_WIDTH];
+
+	if (line_count == MAX_HEIGHT_STATUS)
+		return;
+
+	if (state)
+		snprintf(line, sizeof(line), "  Subscriber: %s State: %s", number, state);
+	else
+		snprintf(line, sizeof(line), "  Subscriber: %s", number);
+	line[sizeof(line) - 1] = '\0';
+	strncpy(screen[line_count++], line, strlen(line));
+}
+
+void display_status_end(void)
+{
+	if (line_count < MAX_HEIGHT_STATUS) {
+		memset(screen[line_count], '-', sizeof(screen[line_count]));
+		line_count++;
+	}
+	/* if last total lines exceed current line count, keep it, so removed lines are overwritten with spaces */
+	if (line_count > lines_total)
+		lines_total = line_count;
+	if (status_on)
+		print_status(1);
+	/* set new total lines */
+	lines_total = line_count;
+}
+
+

src/common/main_common.c

@@ -166,7 +166,12 @@ void print_hotkeys_common(void)
 	printf("\n");
 	printf("Press digits '0'..'9' and then 'd' key to dial towards mobile station\n");
 	printf("Press 'h' key to hangup.\n");
-	printf("Press 'w' key to toggle display of wave form of RX signal.\n");
+	printf("Press 'w' key to toggle display of RX wave form.\n");
+	printf("Press 'c' key to toggle display of channel status.\n");
+#ifdef HAVE_SDR
+	printf("Press 'i' key to toggle display of RX I/Q vector.\n");
+	printf("Press 's' key to toggle display of RX spectrum.\n");
+#endif
 }
 
 #define	OPT_CHANNEL		1000
@@ -567,18 +572,30 @@ next_char:
 			display_iq_on(0);
 			display_spectrum_on(0);
 #endif
+			display_status_on(0);
 			display_wave_on(-1);
 			goto next_char;
+		case 'c':
+			/* toggle display */
+#ifdef HAVE_SDR
+			display_iq_on(0);
+			display_spectrum_on(0);
+#endif
+			display_wave_on(0);
+			display_status_on(-1);
+			goto next_char;
 #ifdef HAVE_SDR
 		case 'q':
 			/* toggle display */
 			display_wave_on(0);
+			display_status_on(0);
 			display_spectrum_on(0);
 			display_iq_on(-1);
 			goto next_char;
 		case 's':
 			/* toggle spectrum */
 			display_wave_on(0);
+			display_status_on(0);
 			display_iq_on(0);
 			display_spectrum_on(-1);
 			goto next_char;