root/OpenSceneGraph/trunk/include/osgAnimation/AnimationUpdateCallback @ 13041

Revision 13041, 2.4 kB (checked in by robert, 3 years ago)

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1/*  -*-c++-*-
2 *  Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
3 *
4 * This library is open source and may be redistributed and/or modified under
5 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
6 * (at your option) any later version.  The full license is in LICENSE file
7 * included with this distribution, and on the openscenegraph.org website.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 * OpenSceneGraph Public License for more details.
13*/
14
15#ifndef OSGANIMATION_ANIMATION_UPDATE_CALLBACK
16#define OSGANIMATION_ANIMATION_UPDATE_CALLBACK 1
17
18#include <osg/Object>
19#include <osgAnimation/Channel>
20#include <osgAnimation/Animation>
21#include <string>
22
23namespace osgAnimation
24{
25
26    class AnimationUpdateCallbackBase : public virtual osg::Object
27    {
28    public:
29        virtual bool link(Channel* channel) = 0;
30        virtual int link(Animation* animation) = 0;
31    };
32
33
34    template <class T>
35    class AnimationUpdateCallback : public AnimationUpdateCallbackBase, public T
36    {
37    public:
38        AnimationUpdateCallback() {}
39        AnimationUpdateCallback(const std::string& name) { T::setName(name);}
40        AnimationUpdateCallback(const AnimationUpdateCallback& apc,const osg::CopyOp& copyop): T(apc, copyop) {}
41
42        META_Object(osgAnimation, AnimationUpdateCallback<T>);
43
44        const std::string& getName() const { return T::getName(); }
45        bool link(Channel* channel) { return 0; }
46        int link(Animation* animation)
47        {
48            if (T::getName().empty())
49            {
50                osg::notify(osg::WARN) << "An update callback has no name, it means it could link only with \"\" named Target, often an error, discard" << std::endl;
51                return 0;
52            }
53            int nbLinks = 0;
54            for (ChannelList::iterator it = animation->getChannels().begin();
55                 it != animation->getChannels().end();
56                 ++it)
57            {
58                std::string targetName = (*it)->getTargetName();
59                if (targetName == T::getName())
60                {
61                    AnimationUpdateCallbackBase* a = this;
62                    a->link((*it).get());
63                    nbLinks++;
64                }
65            }
66            return nbLinks;
67        }
68    };
69
70}
71
72#endif
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