From a76954b6f75f2478ff62f4882068098800297374 Mon Sep 17 00:00:00 2001
From: Sebastian <kujas@hfg-offenbach.de>
Date: Wed, 24 Jun 2026 18:11:34 +0200
Subject: [PATCH] clipboard singleton

---
 src/clipboard.cpp           | 7 +++++++
 src/clipboard.h             | 3 +++
 src/interaction-manager.cpp | 4 ++--
 src/interaction-manager.h   | 2 +-
 4 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/src/clipboard.cpp b/src/clipboard.cpp
index ab16089..dde79d5 100644
--- a/src/clipboard.cpp
+++ b/src/clipboard.cpp
@@ -12,5 +12,12 @@ namespace VISEQ::APP {
             clipboard.front().push_back(n);
         }
     }
+     
+    std::shared_ptr<Clipboard> Clipboard::get() {
+        if(!Clipboard::instance){
+            Clipboard::instance.reset(new Clipboard());
+        }
+        return Clipboard::instance;
+    }
 
 }
diff --git a/src/clipboard.h b/src/clipboard.h
index 98a61e6..430cbf0 100644
--- a/src/clipboard.h
+++ b/src/clipboard.h
@@ -13,6 +13,9 @@ namespace VISEQ::APP {
 			GRAPH::NODES::VEC_SPTR_Node pasteNodes();
 
 			void copyNodes(GRAPH::NODES::VEC_SPTR_Node selected_nodes);
+			
+            inline static std::shared_ptr<Clipboard> instance;
+			static std::shared_ptr<Clipboard> get();
 
 	};
 }
diff --git a/src/interaction-manager.cpp b/src/interaction-manager.cpp
index 87ef5f7..9fd36a3 100644
--- a/src/interaction-manager.cpp
+++ b/src/interaction-manager.cpp
@@ -13,11 +13,11 @@ namespace VISEQ::INTERACTION{
     void InteractionManager::update(){
         if(KEYS_DOWN.ctrl && IsKeyPressed(KEY_C)){
             VEC_SPTR_Node selected_nodes = gm->getCopiesOfSelectedNodes();
-            if(!selected_nodes.empty()) cb.copyNodes(selected_nodes);
+            if(!selected_nodes.empty()) cb->copyNodes(selected_nodes);
         }
 
         if(KEYS_DOWN.ctrl && IsKeyPressed(KEY_V)){
-            VEC_SPTR_Node paste_nodes = cb.pasteNodes();
+            VEC_SPTR_Node paste_nodes = cb->pasteNodes();
             if(!paste_nodes.empty()) gm->pasteNodesAndEdges(paste_nodes, MOD_MOUSE);
         }
 
diff --git a/src/interaction-manager.h b/src/interaction-manager.h
index 35dcf50..d09735e 100644
--- a/src/interaction-manager.h
+++ b/src/interaction-manager.h
@@ -62,7 +62,7 @@ namespace VISEQ::INTERACTION{
 			Vec2Df scale_start;
 			std::shared_ptr<ScaleHandle> scale_handle = std::make_shared<ScaleHandle>();
 
-            VISEQ::APP::Clipboard cb;
+            std::shared_ptr<APP::Clipboard> cb = APP::Clipboard::get();
 
 			void update();
 			void draw();