fix combobox issue, pad scissor by 1px

src/node.h

@@ -103,9 +103,9 @@ public:
     uint16_t m_nodeID;
     std::string m_nodeID_s;
     std::vector<std::shared_ptr<Node>> m_children;
-    Node* current_mouse_capture = nullptr;
-    Node* current_key_capture = nullptr;
-    Node* child_mouse_focus = nullptr;
+    std::shared_ptr<Node> current_mouse_capture = nullptr;
+    std::shared_ptr<Node> current_key_capture = nullptr;
+    std::shared_ptr<Node> child_mouse_focus = nullptr;
     bool m_mouse_captured = false;
     bool m_key_captured = false;
 
@@ -116,7 +116,7 @@ public:
     bool m_flood_events = false;
     bool m_force_mouse_capture = false;
     bool m_capture_children = true; // wether to capture children events when xx_capture() is used
-    std::vector<Node*> m_capture_stack;
+    std::vector<std::shared_ptr<Node>> m_capture_stack;
 
     bool m_mouse_ignore = true;
     float m_zoom = 1.f;