EditorCommand.h

#pragma once
 
#include "Base.h"
 
#include "Resources/Resources.h"
 
#include "Utilities/Parsing.h"
 
namespace Cogs::Core
{
  struct EditorState;
  class Context;
 
  struct COGSCORE_DLL_API EditorCommand
  {
    EditorCommand(EditorState * state, Context * context);
    virtual ~EditorCommand() = default;
 
    virtual void apply() = 0;
    virtual void undo() = 0;
    virtual void redo()
    {
      apply();
    }
 
    virtual bool mergeWith(const EditorCommand * /*command*/) { return false; }
 
    virtual MeshHandle applyMesh(MeshHandle /*mesh*/) { return {}; }
 
    virtual void close()
    {
      closed = true;
    }
 
    bool isClosed() const { return closed; }
 
    bool merge(const EditorCommand * command)
    {
      if (closed) return false;
 
      return mergeWith(command);
    }
 
    std::vector<ParsedValue> options;
 
    bool permanentUndo = false;
 
  protected:
    EditorState * state = nullptr;
    Context * context = nullptr;
 
  private:
    bool closed = false;
  };
}