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diff --git a/3rdparty/imgui-node-editor/imgui_canvas.h b/3rdparty/imgui-node-editor/imgui_canvas.h
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-// Canvas widget - view over infinite virtual space.
-//
-// Canvas allows you to draw your widgets anywhere over infinite space and provide
-// view over it with support for panning and scaling.
-//
-// When you enter a canvas ImGui is moved to virtual space which mean:
-//   - ImGui::GetCursorScreenPos() return (0, 0) and which correspond to top left corner
-//     of the canvas on the screen (this can be changed using CanvasView()).
-//   - Mouse input is brought to canvas space, so widgets works as usual.
-//   - Everything you draw with ImDrawList will be in virtual space.
-//
-// By default origin point is on top left corner of canvas widget. It can be
-// changed with call to CanvasView() where you can specify what part of space
-// should be viewed by setting viewport origin point and scale. Current state
-// can be queried with CanvasViewOrigin() and CanvasViewScale().
-//
-// Viewport size is controlled by 'size' parameter in BeginCanvas(). You can query
-// it using CanvasContentMin/Max/Size functions. They are useful if you to not specify
-// canvas size in which case all free space is used.
-//
-// Bounds of visible region of infinite space can be queried using CanvasViewMin/Max/Size
-// functions. Everything that is drawn outside of this region will be clipped
-// as usual in ImGui.
-//
-// While drawing inside canvas you can translate position from world (usual ImGui space)
-// to virtual space and back using CanvasFromWorld()/CanvasToWorld().
-//
-// Canvas can be nested in each other (they are regular widgets after all). There
-// is a way to transform position between current and parent canvas with
-// CanvasFromParent()/CanvasToParent().
-//
-// Sometimes in more elaborate scenarios you want to move out canvas virtual space,
-// do something and came back. You can do that with SuspendCanvas() and ResumeCanvas().
-//
-// Note:
-//     It is not valid to call canvas API outside of BeginCanvas() / EndCanvas() scope.
-//
-// VERSION 0.1
-//
-// LICENSE
-//   This software is dual-licensed to the public domain and under the following
-//   license: you are granted a perpetual, irrevocable license to copy, modify,
-//   publish, and distribute this file as you see fit.
-//
-// CREDITS
-//   Written by Michal Cichon
-# ifndef __IMGUI_EX_CANVAS_H__
-# define __IMGUI_EX_CANVAS_H__
-# pragma once
-
-# include <imgui.h>
-# include <imgui_internal.h> // ImRect, ImFloor
-
-namespace ImGuiEx {
-
-struct CanvasView
-{
-    ImVec2 Origin;
-    float  Scale  = 1.0f;
-    float  InvScale = 1.0f;
-
-    CanvasView() = default;
-    CanvasView(const ImVec2& origin, float scale)
-        : Origin(origin)
-        , Scale(scale)
-        , InvScale(scale ? 1.0f / scale : 0.0f)
-    {
-    }
-
-    void Set(const ImVec2& origin, float scale)
-    {
-        *this = CanvasView(origin, scale);
-    }
-};
-
-// Canvas widget represent view over infinite plane.
-//
-// It acts like a child window without scroll bars with
-// ability to zoom to specific part of canvas plane.
-//
-// Widgets are clipped according to current view exactly
-// same way ImGui do. To avoid `missing widgets` artifacts first
-// setup visible region with SetView() then draw content.
-//
-// Everything drawn with ImDrawList betwen calls to Begin()/End()
-// will be drawn on canvas plane. This behavior can be suspended
-// by calling Suspend() and resumed by calling Resume().
-//
-// Warning:
-//     Please do not interleave canvas with use of channel splitter.
-//     Keep channel splitter contained inside canvas or always
-//     call canvas functions from same channel.
-struct Canvas
-{
-    // Begins drawing content of canvas plane.
-    //
-    // When false is returned that mean canvas is not visible to the
-    // user can drawing should be skipped and End() not called.
-    // When true is returned drawing must be ended with call to End().
-    //
-    // If any size component is equal to zero or less canvas will
-    // automatically expand to all available area on that axis.
-    // So (0, 300) will take horizontal space and have height
-    // of 300 points. (0, 0) will take all remaining space of
-    // the window.
-    //
-    // You can query size of the canvas while it is being drawn
-    // by calling Rect().
-    bool Begin(const char* id, const ImVec2& size);
-    bool Begin(ImGuiID id, const ImVec2& size);
-
-    // Ends interaction with canvas plane.
-    //
-    // Must be called only when Begin() retuned true.
-    void End();
-
-    // Sets visible region of canvas plane.
-    //
-    // Origin is an offset of infinite plane origin from top left
-    // corner of the canvas.
-    //
-    // Scale greater than 1 make canvas content be bigger, less than 1 smaller.
-    void SetView(const ImVec2& origin, float scale);
-    void SetView(const CanvasView& view);
-
-    // Centers view over specific point on canvas plane.
-    //
-    // View will be centered on specific point by changing origin
-    // but not scale.
-    void CenterView(const ImVec2& canvasPoint);
-
-    // Calculates view over specific point on canvas plane.
-    CanvasView CalcCenterView(const ImVec2& canvasPoint) const;
-
-    // Centers view over specific rectangle on canvas plane.
-    //
-    // Whole rectangle will fit in canvas view. This will affect both
-    // origin and scale.
-    void CenterView(const ImRect& canvasRect);
-
-    // Calculates view over specific rectangle on canvas plane.
-    CanvasView CalcCenterView(const ImRect& canvasRect) const;
-
-    // Suspends canvas by returning to normal ImGui transformation space.
-    // While suspended UI will not be drawn on canvas plane.
-    //
-    // Calls to Suspend()/Resume() are symetrical. Each call to Suspend()
-    // must be matched with call to Resume().
-    void Suspend();
-    void Resume();
-
-    // Transforms point from canvas plane to ImGui.
-    ImVec2 FromLocal(const ImVec2& point) const;
-    ImVec2 FromLocal(const ImVec2& point, const CanvasView& view) const;
-
-    // Transforms vector from canvas plant to ImGui.
-    ImVec2 FromLocalV(const ImVec2& vector) const;
-    ImVec2 FromLocalV(const ImVec2& vector, const CanvasView& view) const;
-
-    // Transforms point from ImGui to canvas plane.
-    ImVec2 ToLocal(const ImVec2& point) const;
-    ImVec2 ToLocal(const ImVec2& point, const CanvasView& view) const;
-
-    // Transforms vector from ImGui to canvas plane.
-    ImVec2 ToLocalV(const ImVec2& vector) const;
-    ImVec2 ToLocalV(const ImVec2& vector, const CanvasView& view) const;
-
-    // Returns widget bounds.
-    //
-    // Note:
-    //     Rect is valid after call to Begin().
-    const ImRect& Rect() const { return m_WidgetRect; }
-
-    // Returns visible region on canvas plane (in canvas plane coordinates).
-    const ImRect& ViewRect() const { return m_ViewRect; }
-
-    // Calculates visible region for view.
-    ImRect CalcViewRect(const CanvasView& view) const;
-
-    // Returns current view.
-    const CanvasView& View() const { return m_View; }
-
-    // Returns origin of the view.
-    //
-    // Origin is an offset of infinite plane origin from top left
-    // corner of the canvas.
-    const ImVec2& ViewOrigin()  const { return m_View.Origin; }
-
-    // Returns scale of the view.
-    float ViewScale() const { return m_View.Scale; }
-
-    // Returns true if canvas is suspended.
-    //
-    // See: Suspend()/Resume()
-    bool IsSuspended() const { return m_SuspendCounter > 0; }
-
-private:
-# define IMGUI_EX_CANVAS_DEFERED() 0
-
-# if IMGUI_EX_CANVAS_DEFERED()
-    struct Range
-    {
-        int BeginVertexIndex = 0;
-        int EndVertexIndex   = 0;
-        int BeginComandIndex = 0;
-        int EndCommandIndex  = 0;
-    };
-# endif
-
-    void UpdateViewTransformPosition();
-
-    void SaveInputState();
-    void RestoreInputState();
-
-    void SaveViewportState();
-    void RestoreViewportState();
-
-    void EnterLocalSpace();
-    void LeaveLocalSpace();
-
-    bool m_InBeginEnd = false;
-
-    ImVec2 m_WidgetPosition;
-    ImVec2 m_WidgetSize;
-    ImRect m_WidgetRect;
-
-    ImDrawList* m_DrawList = nullptr;
-    int m_ExpectedChannel = 0;
-
-# if IMGUI_EX_CANVAS_DEFERED()
-    ImVector<Range> m_Ranges;
-    Range* m_CurrentRange = nullptr;
-# endif
-
-    int m_DrawListCommadBufferSize = 0;
-    int m_DrawListStartVertexIndex = 0;
-
-    CanvasView  m_View;
-    ImRect      m_ViewRect;
-
-    ImVec2 m_ViewTransformPosition;
-
-    int m_SuspendCounter = 0;
-
-    float m_LastFringeScale = 1.0f;
-
-    ImVec2 m_MousePosBackup;
-    ImVec2 m_MousePosPrevBackup;
-    ImVec2 m_MouseClickedPosBackup[IM_ARRAYSIZE(ImGuiIO::MouseClickedPos)];
-    ImVec2 m_WindowCursorMaxBackup;
-
-# if defined(IMGUI_HAS_VIEWPORT)
-    ImVec2 m_WindowPosBackup;
-    ImVec2 m_ViewportPosBackup;
-    ImVec2 m_ViewportSizeBackup;
-# if IMGUI_VERSION_NUM > 18002
-    ImVec2 m_ViewportWorkPosBackup;
-    ImVec2 m_ViewportWorkSizeBackup;
-# else
-    ImVec2 m_ViewportWorkOffsetMinBackup;
-    ImVec2 m_ViewportWorkOffsetMaxBackup;
-# endif
-# endif
-};
-
-} // namespace ImGuiEx
-
-# endif // __IMGUI_EX_CANVAS_H__
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