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-rw-r--r--src/common/display_status.c147
1 files changed, 147 insertions, 0 deletions
diff --git a/src/common/display_status.c b/src/common/display_status.c
new file mode 100644
index 0000000..64ec79c
--- /dev/null
+++ b/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;
+}
+
+