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source: code/branches/weapons/src/orxonox/overlays/OverlayGroup.h @ 8531

Last change on this file since 8531 was 7401, checked in by landauf, 14 years ago

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1/*
2 *   ORXONOX - the hottest 3D action shooter ever to exist
3 *                    > www.orxonox.net <
4 *
5 *
6 *   License notice:
7 *
8 *   This program is free software; you can redistribute it and/or
9 *   modify it under the terms of the GNU General Public License
10 *   as published by the Free Software Foundation; either version 2
11 *   of the License, or (at your option) any later version.
12 *
13 *   This program is distributed in the hope that it will be useful,
14 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
15 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 *   GNU General Public License for more details.
17 *
18 *   You should have received a copy of the GNU General Public License
19 *   along with this program; if not, write to the Free Software
20 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
21 *
22 *   Author:
23 *      Reto Grieder
24 *   Co-authors:
25 *      ...
26 *
27 */
28
29/**
30@file
31@brief Declaration of the OverlayGroup class.
32*/
33
34#ifndef _OverlayGroup_H__
35#define _OverlayGroup_H__
36
37#include "OrxonoxPrereqs.h"
38
39#include <set>
40#include "util/Math.h"
41#include "util/OgreForwardRefs.h"
42#include "core/BaseObject.h"
43
44namespace orxonox
45{
46    /**
47    @brief
48        OverlayGroup does almost exactly what it says: It groups OrxonoxOverlays together.
49        You can scroll the entire group by a certain amount. Scale however works differently
50        than expected: Each OrxonoxOverlay scales individually. That's quite useful when you
51        create your HUD with an OverlayGroup and then want to alter its size.
52    */
53    class _OrxonoxExport OverlayGroup : public BaseObject
54    {
55    public:
56        OverlayGroup(BaseObject* creator);
57        //! Empty destructor.
58        ~OverlayGroup();
59
60        virtual void XMLPort(Element& xmlelement, XMLPort::Mode mode);
61
62        static void toggleVisibility(const std::string& name);
63        static void scaleGroup(const std::string& name, float scale);
64        static void scrollGroup(const std::string& name, const Vector2& scroll);
65
66        inline const std::set< SmartPtr<OrxonoxOverlay> >& getOverlays() const
67            { return this->hudElements_; }
68
69        void changedVisibility();
70
71        void setOwner(BaseObject* owner);
72        inline BaseObject* getOwner() const
73            { return this->owner_; }
74
75        //! Scales each OrxonoxOverlay individually by scale.
76        void scale(const Vector2& scale) { this->setScale(scale * this->scale_); }
77        void setScale(const Vector2& scale);
78        //! Returns the current size of the group.
79        Vector2 getScale() const { return this->scale_; }
80
81        //! Scrolls each OrxonoxOverlay individually by scroll.
82        void scroll(const Vector2& scroll) { this->setScroll(scroll + this->scroll_); }
83        void setScroll(const Vector2& scroll);
84        //! Returns the current scrolling offset of the group.
85        Vector2 getScroll() const { return this->scale_; }
86
87        void addElement(OrxonoxOverlay* element);
88        bool removeElement(OrxonoxOverlay* element);
89        OrxonoxOverlay* getElement(unsigned int index);
90
91    private:
92        std::set< SmartPtr<OrxonoxOverlay> > hudElements_;    //!< Contains all the OrxonoxOverlays of the this group.
93        Vector2 scale_;                            //!< Current scale (independent of the elements).
94        Vector2 scroll_;                           //!< Current scrolling offset.
95        BaseObject* owner_;                        //!< The owner of this OverlayGroup
96    };
97}
98
99#endif /* _OverlayGroup_H__ */
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