replace screens with unique_ptr (#11163)

src/graphics/Screen.h

@@ -6,6 +6,7 @@
 #include "mesh/generated/meshtastic/config.pb.h"
 #include <OLEDDisplay.h>
 #include <functional>
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -842,6 +843,6 @@ class Screen : public concurrency::OSThread
 // Extern declarations for function symbols used in UIRenderer
 extern std::vector<std::string> functionSymbol;
 extern std::string functionSymbolString;
-extern graphics::Screen *screen;
+extern std::unique_ptr<graphics::Screen> screen;
 
 #endif

src/graphics/draw/DebugRenderer.cpp

@@ -38,7 +38,7 @@
 using namespace meshtastic;
 
 // External variables
-extern graphics::Screen *screen;
+extern std::unique_ptr<graphics::Screen> screen;
 extern PowerStatus *powerStatus;
 extern NodeStatus *nodeStatus;
 extern GPSStatus *gpsStatus;

src/graphics/draw/MessageRenderer.cpp

@@ -23,7 +23,7 @@
 
 // External declarations
 extern bool hasUnreadMessage;
-extern graphics::Screen *screen;
+extern std::unique_ptr<graphics::Screen> screen;
 
 using graphics::Emote;
 using graphics::emotes;

src/graphics/draw/NodeListRenderer.cpp

@@ -18,7 +18,7 @@
 #include <algorithm>
 
 // Global screen instance
-extern graphics::Screen *screen;
+extern std::unique_ptr<graphics::Screen> screen;
 
 #if defined(OLED_TINY)
 static uint32_t lastSwitchTime = 0;

src/graphics/draw/UIRenderer.cpp

@@ -28,7 +28,7 @@
 #include <gps/RTC.h>
 
 // External variables
-extern graphics::Screen *screen;
+extern std::unique_ptr<graphics::Screen> screen;
 #if defined(OLED_TINY)
 static uint32_t lastSwitchTime = 0;
 #endif