leocad/common/lc_modelhistory.h

#pragma once

#include "lc_model.h"
#include "lc_objecthistory.h"

enum class lcObjectType;
enum class lcSelectionMode;

class lcModelHistory
{
public:
	lcModelHistory() = default;
	virtual ~lcModelHistory() = default;

	virtual void SaveStartState(const lcModel* Model) = 0;
	virtual void SaveEndState(const lcModel* Model) = 0;
	virtual void LoadStartState(lcModel* Model) const = 0;
	virtual void LoadEndState(lcModel* Model) const = 0;
	virtual bool StateChanged() const = 0;
	virtual void RenamePieces(const std::vector<lcModelPieceRename>& Renames, const lcPieceData* ModelPieceData)
	{
		Q_UNUSED(Renames);
		Q_UNUSED(ModelPieceData);
	}

	virtual bool CanMergeWith(const lcModelHistory* Other) const
	{
		Q_UNUSED(Other);

		return false;
	}

	virtual void MergeWith(lcModelHistory* Other)
	{
		Q_UNUSED(Other);
	}
};

struct lcModelHistorySelectState
{
	std::vector<bool> PieceSelection;
	std::vector<bool> CameraSelection;
	std::vector<bool> LightSelection;
	size_t FocusIndex = SIZE_MAX;
	uint32_t FocusSection = ~0U;
	lcObjectType FocusObjectType = static_cast<lcObjectType>(~0);

	bool operator!=(const lcModelHistorySelectState& Other) const
	{
		return PieceSelection != Other.PieceSelection || CameraSelection != Other.CameraSelection || LightSelection != Other.LightSelection ||
			FocusIndex != Other.FocusIndex || FocusSection != Other.FocusSection || FocusObjectType != Other.FocusObjectType;
	}
};

class lcModelHistorySelect : public lcModelHistory
{
public:
	lcModelHistorySelect() = default;
	virtual ~lcModelHistorySelect() = default;

	void SaveStartState(const lcModel* Model) override;
	void SaveEndState(const lcModel* Model) override;
	void LoadStartState(lcModel* Model) const override;
	void LoadEndState(lcModel* Model) const override;
	bool StateChanged() const override;

protected:
	static void SaveState(lcModelHistorySelectState& State, const lcModel* Model);
	static void LoadState(const lcModelHistorySelectState& State, lcModel* Model);

	lcModelHistorySelectState mStartState;
	lcModelHistorySelectState mEndState;
};

struct lcGroupHistoryState;
struct lcPieceHistoryState;
struct lcCameraHistoryState;
struct lcLightHistoryState;

struct lcModelHistoryEditState
{
	lcObjectHistory<lcGroupHistoryState> Groups;
	lcObjectHistory<lcPieceHistoryState> Pieces;
	lcObjectHistory<lcCameraHistoryState> Cameras;
	lcObjectHistory<lcLightHistoryState> Lights;

	bool IsEmpty() const
	{
		return Groups.IsEmpty() && Pieces.IsEmpty() && Cameras.IsEmpty() && Lights.IsEmpty();
	}
};

enum class lcModelHistoryEditMerge
{
	None,
	KeyboardMove,
	KeyboardRotate,
	KeyboardZoom,
	KeyboardMoveCamera,
	PropertiesMove,
	PropertiesRotate,
	PropertiesEdit
};

struct lcModelHistoryEditMergeKey
{
	lcModelHistoryEditMerge Operation;
	lcObjectPropertyId PropertyEditId = lcObjectPropertyId::Count;
	lcStep Step;
	bool AddKeys;

	bool operator==(const lcModelHistoryEditMergeKey& Other) const
	{
		return Operation == Other.Operation && PropertyEditId == Other.PropertyEditId && Step == Other.Step && AddKeys == Other.AddKeys;
	}
};

class lcModelHistoryEdit : public lcModelHistory
{
public:
	lcModelHistoryEdit(lcModelHistoryEditMergeKey MergeKey);
	virtual ~lcModelHistoryEdit();

	void SaveStartState(const lcModel* Model) override;
	void SaveEndState(const lcModel* Model) override;
	void LoadStartState(lcModel* Model) const override;
	void LoadEndState(lcModel* Model) const override;
	bool StateChanged() const override;
	void RenamePieces(const std::vector<lcModelPieceRename>& Renames, const lcPieceData* ModelPieceData) override;

	bool CanMergeWith(const lcModelHistory* Other) const override;
	void MergeWith(lcModelHistory* Other) override;

protected:
	static void SaveState(lcModelHistoryEditState& State, const lcModel* Model);
	static void LoadState(const lcModelHistoryEditState& State, lcModel* Model);

	lcModelHistoryEditState mStartState;
	lcModelHistoryEditState mEndState;
	lcModelHistoryEditMergeKey mMergeKey;
};

class lcModelHistoryProperties : public lcModelHistory
{
public:
	lcModelHistoryProperties() = default;
	virtual ~lcModelHistoryProperties() = default;

	void SaveStartState(const lcModel* Model) override;
	void SaveEndState(const lcModel* Model) override;
	void LoadStartState(lcModel* Model) const override;
	void LoadEndState(lcModel* Model) const override;
	bool StateChanged() const override;
	void RenamePieces(const std::vector<lcModelPieceRename>& Renames, const lcPieceData* ModelPieceData) override;

protected:
	static void SaveState(lcModelProperties& State, const lcModel* Model);
	static void LoadState(const lcModelProperties& State, lcModel* Model);

	lcModelProperties mStartState;
	lcModelProperties mEndState;
};