From 364f8d4e46e825d1f840fa20c8d12c40edffe0de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niccol=C3=B2=20Izzo?= <izzo.niccolo@gmail.com>
Date: Thu, 28 Jan 2021 12:51:22 +0100
Subject: [PATCH] Add squelch visualization and control from macro menu

---
 openrtx/include/state.h  |  1 +
 openrtx/src/ui/ui.c      | 15 +++++++++++++++
 openrtx/src/ui/ui_menu.c |  9 ++++++++-
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/openrtx/include/state.h b/openrtx/include/state.h
index db679c93..d1d62fc0 100644
--- a/openrtx/include/state.h
+++ b/openrtx/include/state.h
@@ -54,6 +54,7 @@ typedef struct
     channel_t channel;
     channel_t vfo_channel;
     uint8_t rtxStatus;
+    // Squelch steps from 0 to 15
     uint8_t sqlLevel;
     uint8_t voxLevel;
 
diff --git a/openrtx/src/ui/ui.c b/openrtx/src/ui/ui.c
index 4ddf8653..ffb1da20 100644
--- a/openrtx/src/ui/ui.c
+++ b/openrtx/src/ui/ui.c
@@ -72,6 +72,7 @@
 #include <string.h>
 #include <battery.h>
 #include <input.h>
+#include <hwconfig.h>
 
 /* UI main screen functions, their implementation is in "ui_main.c" */
 extern void _ui_drawMainBackground();
@@ -534,6 +535,20 @@ void _ui_fsm_menuMacro(kbd_msg_t msg, bool *sync_rtx) {
             platform_setBacklightLevel(state.backlight_level);
             break;
     }
+
+#ifdef HAS_ABSOLUTE_KNOB // If the radio has an absolute position knob
+    state.sqlLevel = platform_getChSelector();
+    printf("New squelch value: %d\n\r", state.sqlLevel);
+#else // Use left and right buttons or relative position knob
+    if(msg.keys && KEY_LEFT) {
+        state.sqlLevel++;
+        state.sqlLevel = (state.sqlLevel > 15) 15 : state.sqlLevel;
+    }
+    else if(msg.keys && KEY_RIGHT) {
+        state.sqlLevel--;
+        state.sqlLevel = (state.sqlLevel < 0) 0 : state.sqlLevel;
+    }
+#endif
 }
 
 void ui_updateFSM(event_t event, bool *sync_rtx)
diff --git a/openrtx/src/ui/ui_menu.c b/openrtx/src/ui/ui_menu.c
index 2aafeb49..9e7ce7f7 100644
--- a/openrtx/src/ui/ui_menu.c
+++ b/openrtx/src/ui/ui_menu.c
@@ -304,5 +304,12 @@ bool _ui_drawMacroMenu(state_t* last_state) {
                   yellow_fab413);
         gfx_print(layout.line3_right, "Sav", layout.top_font, TEXT_ALIGN_RIGHT,
                   color_white);
-    return true;
+        // Squelch bar
+        uint16_t squelch_width = SCREEN_WIDTH / 16 * last_state->sqlLevel;
+        point_t squelch_pos = { layout.bottom_left.x, layout.bottom_left.y +
+                                                      layout.status_v_pad +
+                                                      layout.text_v_offset -
+                                                      layout.bottom_h };
+        gfx_drawRect(squelch_pos, squelch_width, layout.bottom_h, color_white, true);
+        return true;
 }