From f98d2d38206243100ac3a4273dadb826c2e54242 Mon Sep 17 00:00:00 2001
From: erikkaashoek <erik@kaashoek.com>
Date: Tue, 3 Nov 2026 17:11:22 +0100
Subject: [PATCH] Generator: PRESET menu; a loaded preset opens the menu of its
 mode, a generator preset starts with the output off (issue #98)

---
 ui.c          | 22 +++++++++++++++++++++-
 vna_browser.c |  7 +++++++
 2 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/ui.c b/ui.c
index e38ee8b..7c27be8 100644
--- a/ui.c
+++ b/ui.c
@@ -2200,6 +2200,23 @@ static UI_FUNCTION_ADV_CALLBACK(menu_mode_acb)
   redraw_request |= REDRAW_CAL_STATUS;
 }
 
+// After a preset load: a generator preset starts with the output off, a mode change shows the menu of the new mode
+static void menu_preset_loaded(int old_mode)
+{
+  bool output = MODE_OUTPUT(setting.mode);
+  if (output)
+    setting.mute = true;
+  if (setting.mode == old_mode) {
+    menu_move_back(!output);      // a generator returns to its form menu
+    return;
+  }
+  menu_move_top();
+  if (output)
+    menu_push_submenu(setting.mode == M_GENLOW ? menu_lowoutputmode : menu_highoutputmode);
+  else
+    ui_mode_normal();
+}
+
 static UI_FUNCTION_ADV_CALLBACK(menu_load_preset_acb)
 {
   (void)item;
@@ -2216,11 +2233,12 @@ static UI_FUNCTION_ADV_CALLBACK(menu_load_preset_acb)
       plot_printf(b->text, sizeof(b->text), "EMPTY %d", (int)data);
     return;
   }
+  int old_mode = setting.mode;
   if (caldata_recall(data) == -1) {
     if (data == 0)
       reset_settings(setting.mode);  // Restore factory defaults
   }
-  menu_move_back(true);
+  menu_preset_loaded(old_mode);
 }
 
 static UI_FUNCTION_ADV_CALLBACK(menu_store_preset_acb)
@@ -4758,6 +4776,7 @@ const menuitem_t  menu_lowoutputmode[] = {
 #ifdef TINYSA4
   { MT_FORM | MT_ADV_CALLBACK,  255, "OUTPUT: %s",     menu_lowoutput_settings_acb},
 #endif
+  { MT_FORM | MT_SUBMENU,  0,                   "PRESET",           menu_load_preset},
   { MT_FORM | MT_CANCEL,   0,                   "MODE",             NULL },
   { MT_FORM | MT_NONE, 0, NULL, NULL } // sentinel
 };
@@ -4775,6 +4794,7 @@ const menuitem_t  menu_highoutputmode[] = {
 #ifdef TINYSA4
   { MT_FORM | MT_SUBMENU,  255, S_RARROW" Settings", menu_settings3},
 #endif
+  { MT_FORM | MT_SUBMENU,   0,          "PRESET",           menu_load_preset},
   { MT_FORM | MT_CANCEL,    0,          "MODE",             NULL },
   { MT_FORM | MT_NONE, 0, NULL, NULL } // sentinel
 };
diff --git a/vna_browser.c b/vna_browser.c
index 2b4605a..12d4ea7 100644
--- a/vna_browser.c
+++ b/vna_browser.c
@@ -468,7 +468,14 @@ static void browser_key_press(int key) {
     break;
     case FILE_BUTTON_FILE:  // Open or delete file
     default:
+    {
+      int old_mode = setting.mode;
       browser_open_file(key - FILE_BUTTON_FILE + (current_page - 1) * FILES_PER_PAGE);
+      if (!sel_mode && keypad_mode == FMT_PRS_FILE) {
+        menu_preset_loaded(old_mode);
+        return;
+      }
+    }
       if (sel_mode) {
         file_count = 0;     // Reeset file count (recalculate on draw page)
         selection = -1;     // Reset delection