Not use for trigger level stored trace

nanovna.h

@@ -489,6 +489,7 @@ int marker_search_right_min(int from);
 #define REDRAW_MARKER     (1<<3)
 #define REDRAW_BATTERY    (1<<4)
 #define REDRAW_AREA       (1<<5)
+#define REDRAW_TRIGGER    (1<<6)
 extern volatile uint8_t redraw_request;
 
 /*
@@ -519,6 +520,7 @@ extern volatile uint8_t redraw_request;
 #define DEFAULT_TRACE_1_COLOR       RGB565(255,  0,  0)  /* RGB565(255,255,  0) */
 #define DEFAULT_TRACE_2_COLOR       RGB565(  0,255,  0)/* RGB565(  0,255,255) */
 #define DEFAULT_TRACE_3_COLOR       RGB565(255,255,  0)/* RGB565(  0,255,  0) */
+#define DEFAULT_TRIGGER_COLOR       RGB565(  0,190,  0)/* RGB565(  0,190,  0) */
 //#define DEFAULT_TRACE_4_COLOR       RGB565(255,  0,255)
 #define DEFAULT_NORMAL_BAT_COLOR    RGB565( 31,227,  0)
 #define DEFAULT_LOW_BAT_COLOR       RGB565(255,  0,  0)

plot.c

@@ -1024,6 +1024,17 @@ markmap_upperarea(void)
   invalidate_rect(0, 0, AREA_WIDTH_NORMAL, 31);
 }
 
+static uint16_t get_trigger_level(void){
+  index_t idx = trace_into_index(TRACE_ACTUAL, 0, &setting.trigger_level);
+  return CELL_Y(idx);
+}
+
+static inline void
+markmap_trigger_area(void){
+  uint16_t tp = get_trigger_level();
+  markmap[current_mappage][tp/CELLWIDTH] = 0xFFFF;
+}
+
 //
 // in most cases _compute_outcode clip calculation not give render line speedup
 //
@@ -1469,6 +1480,15 @@ draw_cell(int m, int n)
 #endif
 //  PULSE;
 #endif
+// Draw trigger line
+  if (setting.trigger != T_AUTO) {
+    int tp = get_trigger_level() - y0;
+    if (tp>=0 && tp < h)
+      for (x = 0; x < w; x++)
+        if (x + x0 >= CELLOFFSETX && x + x0 <= WIDTH + CELLOFFSETX)
+          cell_buffer[tp * CELLWIDTH + x] = DEFAULT_TRIGGER_COLOR;
+  }
+
 // Draw traces (50-600 system ticks for all screen calls, depend from lines
 // count and size)
 #if 1
@@ -1603,7 +1623,9 @@ draw_all(bool flush)
     force_set_markmap();
   if (redraw_request & REDRAW_MARKER)
     markmap_upperarea();
-  if (redraw_request & (REDRAW_CELLS | REDRAW_MARKER | REDRAW_AREA)){
+  if (redraw_request & REDRAW_TRIGGER)
+    markmap_trigger_area();
+  if (redraw_request & (REDRAW_CELLS | REDRAW_MARKER | REDRAW_AREA | REDRAW_TRIGGER)){
     draw_all_cells(flush);
 #ifdef __SCROLL__
   //  START_PROFILE

sa_core.c

@@ -744,30 +744,17 @@ void set_offset(float offset)
   dirty = true;
 }
 
-void show_stored_trace_at(float v)
-{
-  for (int j = 0; j < setting._sweep_points; j++)
-    stored_t[j] = v;
-  trace[TRACE_STORED].enabled = true;
-}
-
 void set_trigger_level(float trigger_level)
 {
   setting.trigger_level = trigger_level;
-  if (setting.trigger != T_AUTO) {
-    show_stored_trace_at(setting.trigger_level);
-  }
+  redraw_request |= REDRAW_TRIGGER;
   dirty = true;
 }
 
 void set_trigger(int trigger)
 {
   setting.trigger = trigger;
-  if (trigger == T_AUTO) {
-    trace[TRACE_STORED].enabled = false;
-  } else {
-    show_stored_trace_at(setting.trigger_level);
-  }
+  redraw_request |= REDRAW_TRIGGER;
   sweep_mode = SWEEP_ENABLE;
   dirty = true;
 }