std::terminate lives in the <exception> header

crude_json.cpp

@@ -12,6 +12,7 @@
 # include "crude_json.h"
 # include <iomanip>
 # include <limits>
+# include <exception>
 # include <cstdlib>
 # include <clocale>
 # include <cmath>

imgui_node_editor.cpp

@@ -635,10 +635,12 @@ void ed::Node::UpdateDrag(const ImVec2& offset)
     auto size = m_Bounds.GetSize();
     m_Bounds.Min = ImFloor(m_DragStart + offset);
     m_Bounds.Max = m_Bounds.Min + size;
+    m_userPositioned = m_Bounds.Min != m_DragStart;
 }
 
 bool ed::Node::EndDrag()
 {
+    m_userPositioned = m_Bounds.Min != m_DragStart;
     return m_Bounds.Min != m_DragStart;
 }
 
@@ -1647,6 +1649,7 @@ void ed::EditorContext::SetNodePosition(NodeId nodeId, const ImVec2& position)
 
     if (node->m_Bounds.Min != position)
     {
+        node->m_userPositioned = false;
         node->m_Bounds.Translate(position - node->m_Bounds.Min);
         node->m_Bounds.Floor();
         MakeDirty(NodeEditor::SaveReasonFlags::Position, node);

imgui_node_editor.h

@@ -431,7 +431,7 @@ IMGUI_NODE_EDITOR_API ImVec2 CanvasToScreen(const ImVec2& pos);
 IMGUI_NODE_EDITOR_API int GetNodeCount();                                // Returns number of submitted nodes since Begin() call
 IMGUI_NODE_EDITOR_API int GetOrderedNodeIds(NodeId* nodes, int size);    // Fills an array with node id's in order they're drawn; up to 'size` elements are set. Returns actual size of filled id's.
 
-
+IMGUI_NODE_EDITOR_API bool GetWasUserPositioned(NodeId node);
 
 
 

imgui_node_editor_api.cpp

@@ -760,3 +760,11 @@ int ax::NodeEditor::GetOrderedNodeIds(NodeId* nodes, int size)
 {
     return s_Editor->GetNodeIds(nodes, size);
 }
+
+bool ax::NodeEditor::GetWasUserPositioned(ax::NodeEditor::NodeId nodeId)
+{
+    if (auto node = s_Editor->FindNode(nodeId)) {
+        return node->m_userPositioned;
+    }
+    return false;
+}

imgui_node_editor_internal.h

@@ -404,6 +404,7 @@ struct Node final: Object
 
     bool     m_RestoreState;
     bool     m_CenterOnScreen;
+    bool     m_userPositioned;
 
     Node(EditorContext* editor, NodeId id)
         : Object(editor)
@@ -422,6 +423,7 @@ struct Node final: Object
         , m_HighlightConnectedLinks(false)
         , m_RestoreState(false)
         , m_CenterOnScreen(false)
+        , m_userPositioned(false)
     {
     }