libopenscenegraph-3.4-dev 3.4.1+dfsg1-3 / usr / include / osgGA / EventVisitor

This file is indexed.

/usr/include/osgGA/EventVisitor is in libopenscenegraph-3.4-dev 3.4.1+dfsg1-3.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below. 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSGGA_EVENTVISITOR
#define OSGGA_EVENTVISITOR 1

#include <osg/NodeVisitor>
#include <osg/Node>
#include <osg/Geode>
#include <osg/Billboard>
#include <osg/LOD>
#include <osg/Switch>
#include <osg/LightSource>
#include <osg/Transform>
#include <osg/Projection>
#include <osg/OccluderNode>
#include <osg/ScriptEngine>

#include <osgGA/GUIEventAdapter>
#include <osgGA/GUIActionAdapter>
#include <osgGA/EventQueue>

namespace osgGA {

/**
 * Basic EventVisitor implementation for animating a scene.
 * This visitor traverses the scene graph, calling each nodes appCallback if
 * it exists.
 */
class OSGGA_EXPORT EventVisitor : public osg::NodeVisitor
{
    public:

        EventVisitor();
        virtual ~EventVisitor();

        META_NodeVisitor(osgGA, EventVisitor)

        void setActionAdapter(osgGA::GUIActionAdapter* actionAdapter) { _actionAdapter=actionAdapter; }

        osgGA::GUIActionAdapter* getActionAdapter() { return _actionAdapter; }

        const osgGA::GUIActionAdapter* getActionAdapter() const { return _actionAdapter; }

        void addEvent(Event* event);
        void removeEvent(Event* event);

        void setEventHandled(bool handled) { _handled = handled; }
        bool getEventHandled() const { return _handled; }

        void setEvents(const EventQueue::Events& events) { _events = events; }
        EventQueue::Events& getEvents() { return _events; }
        const EventQueue::Events& getEvents() const { return _events; }

    public:

        virtual void reset();

        /** During traversal each type of node calls its callbacks and its children traversed. */
        virtual void apply(osg::Node& node)         { handle_callbacks_and_traverse(node); }


        virtual void apply(osg::Drawable& drawable)
        {
            osg::Callback* callback = drawable.getEventCallback();
            if (callback)
            {
                osg::Drawable::EventCallback* drawable_callback = dynamic_cast<osg::Drawable::EventCallback*>(callback);
                osg::NodeCallback* node_callback = dynamic_cast<osg::NodeCallback*>(callback);
                osg::CallbackObject* callback_object = dynamic_cast<osg::CallbackObject*>(callback);

                if (drawable_callback) drawable_callback->event(this,&drawable);
                if (node_callback) (*node_callback)(&drawable, this);

                if ((!drawable_callback && !node_callback) || callback_object)  callback_object->run(&drawable, this);
            }

            handle_callbacks(drawable.getStateSet());
        }

        virtual void apply(osg::Geode& node)        { handle_callbacks_and_traverse(node); }
        virtual void apply(osg::Billboard& node)    { handle_callbacks_and_traverse(node); }

        virtual void apply(osg::LightSource& node)  { handle_callbacks_and_traverse(node); }

        virtual void apply(osg::Group& node)        { handle_callbacks_and_traverse(node); }
        virtual void apply(osg::Transform& node)    { handle_callbacks_and_traverse(node); }
        virtual void apply(osg::Projection& node)   { handle_callbacks_and_traverse(node); }
        virtual void apply(osg::Switch& node)       { handle_callbacks_and_traverse(node); }
        virtual void apply(osg::LOD& node)          { handle_callbacks_and_traverse(node); }
        virtual void apply(osg::OccluderNode& node) { handle_callbacks_and_traverse(node); }


    protected:

        /** Prevent unwanted copy operator.*/
        EventVisitor& operator = (const EventVisitor&) { return *this; }

        inline void handle_callbacks(osg::StateSet* stateset)
        {
            if (stateset && stateset->requiresEventTraversal())
            {
                stateset->runEventCallbacks(this);
            }
        }

        inline void handle_callbacks_and_traverse(osg::Node& node)
        {
            handle_callbacks(node.getStateSet());

            osg::Callback* callback = node.getEventCallback();
            if (callback) callback->run(&node,this);
            else if (node.getNumChildrenRequiringEventTraversal()>0) traverse(node);
        }


        osgGA::GUIActionAdapter*        _actionAdapter;

        osg::ref_ptr<GUIEventAdapter>   _accumulateEventState;

        bool                            _handled;
        EventQueue::Events              _events;
};

}

#endif

APT Browse - Built by Thomas Orozco.