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/*
* objectgroup.h
* Copyright 2008, Roderic Morris <roderic@ccs.neu.edu>
* Copyright 2008-2010, Thorbjørn Lindeijer <thorbjorn@lindeijer.nl>
* Copyright 2009-2010, Jeff Bland <jksb@member.fsf.org>
*
* This file is part of libtiled.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef OBJECTGROUP_H
#define OBJECTGROUP_H
#include "tiled_global.h"
#include "layer.h"
#include <QList>
#include <QColor>
namespace Tiled {
class MapObject;
/**
* A group of objects on a map.
*/
class TILEDSHARED_EXPORT ObjectGroup : public Layer
{
public:
/**
* Default constructor.
*/
ObjectGroup();
/**
* Constructor with some parameters.
*/
ObjectGroup(const QString &name, int x, int y, int width, int height);
/**
* Destructor.
*/
~ObjectGroup();
/**
* Returns a pointer to the list of objects in this object group.
*/
const QList<MapObject*> &objects() const { return mObjects; }
/**
* Returns the number of objects in this object group.
*/
int objectCount() const { return mObjects.size(); }
/**
* Adds an object to this object group.
*/
void addObject(MapObject *object);
/**
* Inserts an object at the specified index. This is only used for undoing
* the removal of an object at the moment, to make sure not to change the
* saved order of the objects.
*/
void insertObject(int index, MapObject *object);
/**
* Removes an object from this object group. Ownership of the object is
* transferred to the caller.
*
* @return the index at which the specified object was removed
*/
int removeObject(MapObject *object);
/**
* Returns the bounding rect around all objects in this object group.
*/
QRectF objectsBoundingRect() const;
/**
* Computes and returns the set of tilesets used by this object group.
*/
QSet<Tileset*> usedTilesets() const;
/**
* Returns whether any tile objects in this object group reference tiles
* in the given tileset.
*/
bool referencesTileset(const Tileset *tileset) const;
/**
* Replaces all references to tiles from \a oldTileset with tiles from
* \a newTileset.
*/
void replaceReferencesToTileset(Tileset *oldTileset, Tileset *newTileset);
/**
* Resizes this object group to \a size, while shifting all objects by
* \a offset tiles.
*
* \sa Layer::resize()
*/
virtual void resize(const QSize &size, const QPoint &offset);
/**
* Offsets all objects within the group, and optionally wraps them. The
* object's center must be within \a bounds, and wrapping occurs if the
* displaced center is out of the bounds.
*
* \sa Layer::offset()
*/
virtual void offset(const QPoint &offset, const QRect &bounds,
bool wrapX, bool wrapY);
bool canMergeWith(Layer *other) const;
Layer *mergedWith(Layer *other) const;
/**
* Returns the color of the object group, or an invalid color if no color
* is set.
*/
const QColor &color() const { return mColor; }
/**
* Sets the display color of the object group.
*/
void setColor(const QColor &color) { mColor = color; }
Layer *clone() const;
virtual ObjectGroup *asObjectGroup() { return this; }
protected:
ObjectGroup *initializeClone(ObjectGroup *clone) const;
private:
QList<MapObject*> mObjects;
QColor mColor;
};
} // namespace Tiled
#endif // OBJECTGROUP_H
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