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/*
* Multiindex container for selection
*
* Authors:
* Adrian Boguszewski
*
* Copyright (C) 2016 Adrian Boguszewski
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifndef INKSCAPE_PROTOTYPE_OBJECTSET_H
#define INKSCAPE_PROTOTYPE_OBJECTSET_H
#include <string>
#include <unordered_map>
#include <boost/multi_index_container.hpp>
#include <boost/multi_index/identity.hpp>
#include <boost/multi_index/sequenced_index.hpp>
#include <boost/multi_index/hashed_index.hpp>
#include <boost/multi_index/random_access_index.hpp>
#include <boost/range/sub_range.hpp>
#include <boost/range/any_range.hpp>
#include <sigc++/connection.h>
#include "sp-object.h"
#include "sp-item.h"
class SPBox3D;
class Persp3D;
struct hashed{};
struct random_access{};
typedef boost::multi_index_container<
SPObject*,
boost::multi_index::indexed_by<
boost::multi_index::sequenced<>,
boost::multi_index::random_access<
boost::multi_index::tag<random_access>>,
boost::multi_index::hashed_unique<
boost::multi_index::tag<hashed>,
boost::multi_index::identity<SPObject*>>
>> multi_index_container;
typedef boost::any_range<
SPObject*,
boost::random_access_traversal_tag,
SPObject* const&,
std::ptrdiff_t> SPObjectRange;
typedef boost::any_range<
SPItem*,
boost::random_access_traversal_tag,
SPItem* const&,
std::ptrdiff_t> SPItemRange;
class ObjectSet {
public:
enum CompareSize {HORIZONTAL, VERTICAL, AREA};
ObjectSet() {};
virtual ~ObjectSet();
/**
* Add an SPObject to the set of selected objects.
*
* @param obj the SPObject to add
*/
bool add(SPObject* object);
/** Add items from an STL iterator range to the selection.
* \param from the begin iterator
* \param to the end iterator
*/
void add(const std::vector<SPItem*>::iterator& from, const std::vector<SPItem*>::iterator& to);
/**
* Removes an item from the set of selected objects.
*
* It is ok to call this method for an unselected item.
*
* @param item the item to unselect
*
* @return is success
*/
bool remove(SPObject* object);
/**
* Returns true if the given object is selected.
*/
bool includes(SPObject *object);
/**
* Set the selection to a single specific object.
*
* @param obj the object to select
*/
void set(SPObject *object);
/**
* Unselects all selected objects.
*/
void clear();
/**
* Returns size of the selection.
*/
int size();
/**
* Returns true if no items are selected.
*/
bool isEmpty();
/**
* Removes an item if selected, adds otherwise.
*
* @param item the item to unselect
*/
void toggle(SPObject *obj);
/**
* Returns a single selected object.
*
* @return NULL unless exactly one object is selected
*/
SPObject *single();
/**
* Returns a single selected item.
*
* @return NULL unless exactly one object is selected
*/
SPItem *singleItem();
/**
* Returns the smallest item from this selection.
*/
SPItem *smallestItem(CompareSize compare);
/**
* Returns the largest item from this selection.
*/
SPItem *largestItem(CompareSize compare);
/** Returns the list of selected objects. */
SPObjectRange range();
/** Returns the list of selected SPItems. */
std::vector<SPItem*> itemList();
/**
* Selects exactly the specified objects.
*
* @param objs the objects to select
*/
void setList(const std::vector<SPItem *> &objs);
/**
* Adds the specified objects to selection, without deselecting first.
*
* @param objs the objects to select
*/
void addList(std::vector<SPItem*> const &objs);
/** Returns the bounding rectangle of the selection. */
Geom::OptRect bounds(SPItem::BBoxType type) const;
Geom::OptRect visualBounds() const;
Geom::OptRect geometricBounds() const;
/**
* Returns either the visual or geometric bounding rectangle of the selection, based on the
* preferences specified for the selector tool
*/
Geom::OptRect preferredBounds() const;
/* Returns the bounding rectangle of the selectionin document coordinates.*/
Geom::OptRect documentBounds(SPItem::BBoxType type) const;
/**
* Returns the rotation/skew center of the selection.
*/
boost::optional<Geom::Point> center() const;
/** Returns a list of all perspectives which have a 3D box in the current selection.
(these may also be nested in groups) */
std::list<Persp3D *> const perspList();
/**
* Returns a list of all 3D boxes in the current selection which are associated to @c
* persp. If @c pers is @c NULL, return all selected boxes.
*/
std::list<SPBox3D *> const box3DList(Persp3D *persp = NULL);
protected:
virtual void _connectSignals(SPObject* object) {};
virtual void _releaseSignals(SPObject* object) {};
virtual void _emitSignals() {};
void _add(SPObject* object);
void _clear();
void _remove(SPObject* object);
bool _anyAncestorIsInSet(SPObject *object);
void _removeDescendantsFromSet(SPObject *object);
void _removeAncestorsFromSet(SPObject *object);
SPItem *_sizeistItem(bool sml, CompareSize compare);
SPObject *_getMutualAncestor(SPObject *object);
virtual void _add_3D_boxes_recursively(SPObject *obj);
virtual void _remove_3D_boxes_recursively(SPObject *obj);
multi_index_container container;
std::list<SPBox3D *> _3dboxes;
std::unordered_map<SPObject*, sigc::connection> releaseConnections;
};
#endif //INKSCAPE_PROTOTYPE_OBJECTSET_H
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