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#pragma once
#include <string>
#include <functional>
#include <sigc++/trackable.h>
#include "imodel.h"
#include "imap.h"
class Entity;
namespace map
{
/**
* Helper class dealing with any models that still have an unmodified
* scale when they're being passed to the IMapWriters.
* During a regular save operation, all models with modified scale are
* processed and have their model files generated with the desired scale.
* In auto-save and prefab export scenarios, no new models are generated
* (in order not to mess up the user's map project folder with models
* generated by auto-saves). To still preserve the model scale as it has
* been set by the user at the time of the auto-save, this class will
* write the modified scale to an editor_* spawnarg, such that it can be
* reconstructed when loading an auto-save or a partial export (#5220).
*/
class ModelScalePreserver :
public sigc::trackable
{
private:
const std::string _modelScaleKey;
public:
ModelScalePreserver();
// Noncopyable
ModelScalePreserver(const ModelScalePreserver&) = delete;
ModelScalePreserver& operator=(const ModelScalePreserver&) = delete;
private:
void forEachScaledModel(const scene::IMapRootNodePtr& root,
const std::function<void(Entity&, model::ModelNode&)>& func);
void onResourceExporting(const scene::IMapRootNodePtr& root);
void onResourceExported(const scene::IMapRootNodePtr& root);
void restoreModelScale(const scene::IMapRootNodePtr& root);
void onMapEvent(IMap::MapEvent ev);
};
}
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