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vcmi/lib/mapping/CMapEditManager.h
2023-05-31 23:18:39 +03:00

103 lines
3.0 KiB
C++

/*
* CMapEditManager.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "../GameConstants.h"
#include "../CRandomGenerator.h"
#include "MapEditUtils.h"
VCMI_LIB_NAMESPACE_BEGIN
class CMapOperation;
/// The CMapUndoManager provides the functionality to save operations and undo/redo them.
class DLL_LINKAGE CMapUndoManager : boost::noncopyable
{
public:
CMapUndoManager();
~CMapUndoManager();
void undo();
void redo();
void clearAll();
/// The undo redo limit is a number which says how many undo/redo items can be saved. The default
/// value is 10. If the value is 0, no undo/redo history will be maintained.
/// FIXME: unlimited undo please
int getUndoRedoLimit() const;
void setUndoRedoLimit(int value);
const CMapOperation * peekRedo() const;
const CMapOperation * peekUndo() const;
void addOperation(std::unique_ptr<CMapOperation> && operation); /// Client code does not need to call this method.
//poor man's signal
void setUndoCallback(std::function<void(bool, bool)> functor);
private:
using TStack = std::list<std::unique_ptr<CMapOperation>>;
void doOperation(TStack & fromStack, TStack & toStack, bool doUndo);
const CMapOperation * peek(const TStack & stack) const;
TStack undoStack;
TStack redoStack;
int undoRedoLimit;
void onUndoRedo();
std::function<void(bool allowUndo, bool allowRedo)> undoCallback;
};
/// The map edit manager provides functionality for drawing terrain and placing
/// objects on the map.
class DLL_LINKAGE CMapEditManager : boost::noncopyable
{
public:
CMapEditManager(CMap * map);
CMap * getMap();
/// Clears the terrain. The free level is filled with water and the underground level with rock.
void clearTerrain(CRandomGenerator * gen = nullptr);
/// Draws terrain at the current terrain selection. The selection will be cleared automatically.
void drawTerrain(TerrainId terType, CRandomGenerator * gen = nullptr);
/// Draws roads at the current terrain selection. The selection will be cleared automatically.
void drawRoad(RoadId roadType, CRandomGenerator * gen = nullptr);
/// Draws rivers at the current terrain selection. The selection will be cleared automatically.
void drawRiver(RiverId riverType, CRandomGenerator * gen = nullptr);
void insertObject(CGObjectInstance * obj);
void insertObjects(std::set<CGObjectInstance *> & objects);
void moveObject(CGObjectInstance * obj, const int3 & pos);
void removeObject(CGObjectInstance * obj);
void removeObjects(std::set<CGObjectInstance *> & objects);
CTerrainSelection & getTerrainSelection();
CObjectSelection & getObjectSelection();
CMapUndoManager & getUndoManager();
private:
void execute(std::unique_ptr<CMapOperation> && operation);
CMap * map;
CMapUndoManager undoManager;
CRandomGenerator gen;
CTerrainSelection terrainSel;
CObjectSelection objectSel;
};
VCMI_LIB_NAMESPACE_END