1 files changed, 45 insertions, 0 deletions
diff --git a/src/draw/tui.h b/src/draw/tui.h
new file mode 100644
index 0000000..a84379f
--- /dev/null
+++ b/src/draw/tui.h
@@ -0,0 +1,45 @@
+#ifndef __RADIOLA_TUI_H
+#define __RADIOLA_TUI_H
+
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+#include <termios.h>
+#include <unistd.h>
+
+//to draw waterfall
+typedef struct tui_waterfall_t
+{
+	int type;
+	int h,w;
+	uint8_t *buf;
+	size_t buf_len;
+} tui_waterfall_t;
+
+typedef struct tui_t
+{
+	int ifd, ofd;
+	struct termios orig_i, orig_o;
+	struct termios raw_i, raw_o;
+	tui_waterfall_t *wf;
+} tui_t;
+
+//prepare terminal ui
+int tui_init( tui_t **t );
+//init waterfall
+int tui_waterfall( tui_t **t, tui_waterfall_t **w );
+//first draw, draw all buffer
+int tui_waterfall_draw( tui_waterfall_t *w );
+//redraw only changed lines
+int tui_waterfall_redraw( tui_waterfall_t *w );
+//update params of waterfall and then need to draw not redraw
+int tui_waterfall_update( tui_t *w );
+//push one line of data to buffer
+int tui_waterfall_data( tui_t *w, int len, uint8_t *buf );
+//return color
+uint8_t tui_waterfall_color( uint8_t d );
+//close terminal ui
+int tui_close( tui_t *t );
+
+#endif
+\ No newline at end of file