billions must commit

1 files changed, 49 insertions, 0 deletions

diff --git a/src/Draw.c b/src/Draw.c
new file mode 100644
index 0000000..1132f10
--- /dev/null
+++ b/src/Draw.c
@@ -0,0 +1,49 @@
+#include <string.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <stdio.h>
+
+#include "Globals.h"
+#include "Terminal.h"
+#include "Draw.h"
+
+void draw(void) {
+  int rows, cols;
+  struct winsize w;
+  ioctl(tty_out_fd, TIOCGWINSZ, &w);
+  rows = w.ws_row;
+  cols = w.ws_col;
+
+  if (rows < 1) rows = 24;
+  if (cols < 1) cols = 80;
+
+  int prompt_len = strlen(opts.prompt);
+  int input_pos = prompt_len + 2;
+  int filter_line = rows;
+  int item_end = rows - 1;
+
+  dprintf(tty_out_fd, "\033[H\033[J");
+
+  dprintf(tty_out_fd, "\033[%d;1H", filter_line);
+  dprintf(tty_out_fd, "\033[7m");
+  dprintf(tty_out_fd, "%-*s", cols, "");
+  dprintf(tty_out_fd, "\033[%d;1H", filter_line);
+  dprintf(tty_out_fd, "%s", opts.prompt);
+  if (input_len > 0) {
+    dprintf(tty_out_fd, " %s", input);
+  }
+  dprintf(tty_out_fd, "\033[0m");
+
+  for (int i = 1; i < item_end; i++) {
+    int idx = i - 1 + scroll;
+    dprintf(tty_out_fd, "\033[%d;1H", i);
+    if (idx < (int)filtered.count) {
+      if (idx == cursor) {
+        dprintf(tty_out_fd, "\033[7m");
+      }
+      dprintf(tty_out_fd, "%s\033[0m", filtered.items[idx]);
+    }
+  }
+  dprintf(tty_out_fd, "\033[%d;%dH", filter_line, input_pos);
+  fsync(tty_out_fd);
+}