Add LCD output to shell function 'Emulate UI'

stm-firmware/ui/gui.c

@@ -815,10 +815,16 @@ int gui_handle(void)
 
 void gui_init(void)
 {
+	/** - Setup the rotary encoder input */
 	rotary_encoder_setup();
+
+	/** - Setup the push button */
 	button_init();
+
+	/** - Setup the LCD */
 	lcd_init();
 
+	/** - If an overlay has been previously set, clear it */
 	if (overlay_heading)
 		free(overlay_heading);
 	if (overlay_text)
@@ -827,6 +833,7 @@ void gui_init(void)
 	overlay_heading = NULL;
 	overlay_text = NULL;
 
+	/** - Init the GUI menu */
 	menu_init(reflow_menu_ptr, gui_menu_root_entry, update_display_buffer);
 }
 
@@ -853,3 +860,13 @@ void gui_lcd_write_direct_blocking(uint8_t line, const char *text)
 	lcd_setcursor(0, line);
 	lcd_string(text);
 }
+
+size_t gui_get_line_count(void)
+{
+	return (size_t)LCD_ROW_COUNT;
+}
+
+const char (*gui_get_current_display_content(void))[21]
+{
+	return display_buffer;
+}