From b19ed5fec5f4b513ccae3affa35d14516fd8cfaf Mon Sep 17 00:00:00 2001
From: gullradriel <3157857+gullradriel@users.noreply.github.com>
Date: Sat, 28 Sep 2024 19:33:09 +0200
Subject: [PATCH] Looking glass narrow view marker wrap around (#2271)

* allow 1 MHz wide view (because why not?)
* allow marker to wrap around each corner
* added another define for clarity
---
 .../application/apps/ui_looking_glass_app.cpp | 20 +++++++++++--------
 .../application/apps/ui_looking_glass_app.hpp |  1 +
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/firmware/application/apps/ui_looking_glass_app.cpp b/firmware/application/apps/ui_looking_glass_app.cpp
index 7160337a..5e412c42 100644
--- a/firmware/application/apps/ui_looking_glass_app.cpp
+++ b/firmware/application/apps/ui_looking_glass_app.cpp
@@ -98,7 +98,6 @@ rf::Frequency GlassView::get_freq_from_bin_pos(uint8_t pos) {
         freq_at_pos = f_center_ini + ((pos - 120) * ((looking_glass_range - ((16 * looking_glass_range) / SPEC_NB_BINS)) / 2)) / (SCREEN_W / 2);
     } else
         freq_at_pos = f_min + (2 * offset * each_bin_size) + (pos * looking_glass_range) / SCREEN_W;
-
     return freq_at_pos;
 }
 
@@ -257,7 +256,7 @@ void GlassView::on_range_changed() {
         bin_length = SCREEN_W;
         ignore_dc = 0;
         looking_glass_bandwidth = looking_glass_range;
-        looking_glass_sampling_rate = looking_glass_bandwidth;
+        looking_glass_sampling_rate = looking_glass_range;
         each_bin_size = looking_glass_bandwidth / SCREEN_W;
         looking_glass_step = looking_glass_bandwidth;
         f_center_ini = f_min + (looking_glass_bandwidth / 2);  // Initial center frequency for sweep
@@ -265,7 +264,7 @@ void GlassView::on_range_changed() {
         // view is made in multiple pass, use original bin picking
         mode = scan_type.selected_index_value();
         looking_glass_bandwidth = LOOKING_GLASS_SLICE_WIDTH_MAX;
-        looking_glass_sampling_rate = LOOKING_GLASS_SLICE_WIDTH_MAX;
+        looking_glass_sampling_rate = LOOKING_GLASS_MAX_SAMPLERATE;
         each_bin_size = LOOKING_GLASS_SLICE_WIDTH_MAX / SPEC_NB_BINS;
         if (mode == LOOKING_GLASS_FASTSCAN) {
             offset = 2;
@@ -315,8 +314,8 @@ void GlassView::update_min(int32_t v) {
     int32_t min_size = steps;
     if (locked_range)
         min_size = search_span;
-    if (min_size < 2)
-        min_size = 2;
+    if (min_size < 1)
+        min_size = 1;
     if (v > 7200 - min_size) {
         v = 7200 - min_size;
     }
@@ -332,8 +331,8 @@ void GlassView::update_max(int32_t v) {
     int32_t min_size = steps;
     if (locked_range)
         min_size = search_span;
-    if (min_size < 2)
-        min_size = 2;
+    if (min_size < 1)
+        min_size = 1;
     if (v < min_size) {
         v = min_size;
     }
@@ -487,7 +486,12 @@ GlassView::GlassView(
     range_presets.set_selected_index(preset_index);
 
     field_marker.on_encoder_change = [this](TextField&, EncoderEvent delta) {
-        marker_pixel_index = clip<uint8_t>(marker_pixel_index + delta, 0, SCREEN_W);
+        if ((marker_pixel_index + delta) < 0)
+            marker_pixel_index = marker_pixel_index + delta + SCREEN_W;
+        else if ((marker_pixel_index + delta) > SCREEN_W)
+            marker_pixel_index = marker_pixel_index + delta - SCREEN_W;
+        else
+            marker_pixel_index = marker_pixel_index + delta;
         on_marker_change();
     };
 
diff --git a/firmware/application/apps/ui_looking_glass_app.hpp b/firmware/application/apps/ui_looking_glass_app.hpp
index 2acfde71..d02803b9 100644
--- a/firmware/application/apps/ui_looking_glass_app.hpp
+++ b/firmware/application/apps/ui_looking_glass_app.hpp
@@ -40,6 +40,7 @@
 namespace ui {
 
 #define LOOKING_GLASS_SLICE_WIDTH_MAX 20000000
+#define LOOKING_GLASS_MAX_SAMPLERATE 20000000
 #define MHZ_DIV 1000000
 
 // blanked DC (16 centered bins ignored ) and top left and right (2 bins ignored on each side )