This file is indexed.

/usr/include/osgViewer/View is in libopenscenegraph-dev 3.2.3+dfsg1-2+b4.

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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
/* -*-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 OSGVIEWER_VIEW
#define OSGVIEWER_VIEW 1

#include <osg/View>

#include <osgUtil/PolytopeIntersector>
#include <osgUtil/LineSegmentIntersector>
#include <osgUtil/UpdateVisitor>
#include <osgUtil/SceneView>

#include <osgGA/CameraManipulator>
#include <osgGA/EventVisitor>
#include <osgGA/EventQueue>
#include <osgGA/Device>

#include <osgViewer/Scene>
#include <osgViewer/ViewerBase>
#include <osgViewer/Keystone>

namespace osgViewer {


/** Base class for View configurations for setting up Camera and Windowing.*/
class OSGVIEWER_EXPORT ViewConfig : public osg::Object
{
    public:

        ViewConfig() {}

        ViewConfig(const ViewConfig& rhs, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY) : osg::Object(rhs,copyop) {}

        META_Object(osgViewer,ViewConfig);
        
        /** configure method that is overridden by Config subclasses.*/
        virtual void configure(osgViewer::View& /*view*/) const {}
        
        /** convinience method for getting the relavent display settings to use.*/
        virtual osg::DisplaySettings* getActiveDisplaySetting(osgViewer::View& view) const;
};


struct OSGVIEWER_EXPORT DepthPartitionSettings : public osg::Referenced
{
    enum DepthMode
    {
        FIXED_RANGE,
        BOUNDING_VOLUME
    };

    DepthPartitionSettings(DepthMode mode=BOUNDING_VOLUME);

    virtual bool getDepthRange(osg::View& view, unsigned int partition, double& zNear, double& zFar);

    DepthMode _mode;
    double _zNear;
    double _zMid;
    double _zFar;
};


/** View holds a single view on a scene, this view may be composed of one or more slave cameras.*/
class OSGVIEWER_EXPORT View : public osg::View, public osgGA::GUIActionAdapter
{
    public:

        View();

        View(const osgViewer::View& view, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);

        META_Object(osgViewer,View);

        /** Provide a mechanism for getting the osg::View associated from the GUIActionAdapter.
          * One would use this to case view to osgViewer::View(er) if supported by the subclass.*/
        virtual osg::View* asView() { return this; }

        /** Provide a mechanism for getting the viewer object from this osgViewer::View.
          * In the case of a osgViewer::Viewer the ViewerBase will effectively point to this object as Viewer subclasses from View.
          * In the case of a osgViewer::CompsoiteViewer the ViewerBase will point to the CompositeViewer that owns this View. */
        ViewerBase* getViewerBase() { return _viewerBase.get(); }

        /** Take all the settings, Camera and Slaves from the passed in view, leaving it empty. */
        virtual void take(osg::View& rhs);

        virtual void setStartTick(osg::Timer_t tick);
        osg::Timer_t getStartTick() const { return _startTick; }

        Scene* getScene() { return _scene.get(); }
        const Scene* getScene() const { return _scene.get(); }

        /** Set the scene graph that the View will use.*/
        virtual void setSceneData(osg::Node* node);

        /** Get the View's scene graph.*/
        osg::Node* getSceneData() { return _scene.valid() ? _scene->getSceneData() : 0; }

        /** Get the const View's scene graph.*/
        const osg::Node* getSceneData() const { return _scene.valid() ? _scene->getSceneData() : 0; }


        /** Set the View's database pager.*/
        void setDatabasePager(osgDB::DatabasePager* dp);

        /** Get the View's database pager.*/
        osgDB::DatabasePager* getDatabasePager();

        /** Get the const View's database pager.*/
        const osgDB::DatabasePager* getDatabasePager() const;


        /** Set the View's image pager.*/
        void setImagePager(osgDB::ImagePager* ip);

        /** Get the View's image pager.*/
        osgDB::ImagePager* getImagePager();

        /** Get the const View's image pager.*/
        const osgDB::ImagePager* getImagePager() const;

       
        /** Add a Device.
         * The Device is polled on each new frame via it's Device::checkEvents() method and any events generated then collected via Device::getEventQueue()*/
        void addDevice(osgGA::Device* eventSource);

        /** Remove a Device. /*/
        void removeDevice(osgGA::Device* eventSource);

        typedef std::vector< osg::ref_ptr<osgGA::Device> > Devices;

        Devices& getDevices() { return _eventSources; }
        const Devices& getDevices() const { return _eventSources; }


        /* Set the EventQueue that the View uses to integrate external non window related events.*/
        void setEventQueue(osgGA::EventQueue* eventQueue) { _eventQueue = eventQueue; }

        /* Get the View's EventQueue.*/
        osgGA::EventQueue* getEventQueue() { return _eventQueue.get(); }

        /* Get the const View's EventQueue.*/
        const osgGA::EventQueue* getEventQueue() const { return _eventQueue.get(); }

        /** Set the CameraManipulator that moves the View's master Camera position in response to events.
          * The parameter resetPosition determines whether manipulator is set to its home position.*/
        void setCameraManipulator(osgGA::CameraManipulator* manipulator, bool resetPosition = true);

        /** Get the View's CameraManipulator.*/
        osgGA::CameraManipulator* getCameraManipulator() { return _cameraManipulator.get(); }

        /** Get the const View's CameraManipulator.*/
        const osgGA::CameraManipulator* getCameraManipulator() const { return _cameraManipulator.get(); }

        /** Set the view to the CameraManipulator's home position, if none is attached home() it does nothing.
          * Note, to set the home position use getCamaraManipulator()->setHomePosition(...). */
        void home();


        typedef std::list< osg::ref_ptr<osgGA::GUIEventHandler> > EventHandlers;

        /** Add an EventHandler that adds handling of events to the View.*/
        void addEventHandler(osgGA::GUIEventHandler* eventHandler);

        /** Remove an EventHandler from View.*/
        void removeEventHandler(osgGA::GUIEventHandler* eventHandler);

        /** Get the View's list of EventHandlers.*/
        EventHandlers& getEventHandlers() { return _eventHandlers; }

        /** Get the const View's list of EventHandlers.*/
        const EventHandlers& getEventHandlers() const { return _eventHandlers; }


        /** Set the NodePath to any active CoordinateSystemNode present in the Scene.
          * The CoordinateSystemNode path is used to help applications and CamaraManipulators handle geocentric coordinates systems,
          * so that the local up direction is known at any position on the whole earth. */
        void setCoordinateSystemNodePath(const osg::NodePath& nodePath);

        /** Get the NodePath to any active CoordinateSystemNode present in the Scene.*/
        osg::NodePath getCoordinateSystemNodePath() const;

        /** Compute the NodePath to any active CoordinateSystemNode present in the Scene.*/
        void computeActiveCoordinateSystemNodePath();


        /** Set the DisplaySettings object associated with this view.*/
        void setDisplaySettings(osg::DisplaySettings* ds) { _displaySettings = ds; }

        /** Set the DisplaySettings object associated with this view.*/
        osg::DisplaySettings* getDisplaySettings() { return _displaySettings.get(); }

        /** Set the DisplaySettings object associated with this view.*/
        const osg::DisplaySettings* getDisplaySettings() const { return _displaySettings.get(); }

        /** Set the FusionDistanceMode and Value. Note, only used when working in stereo.*/
        void setFusionDistance(osgUtil::SceneView::FusionDistanceMode mode,float value=1.0f)
        {
            _fusionDistanceMode = mode;
            _fusionDistanceValue = value;
        }

        /** Get the FusionDistanceMode.*/
        osgUtil::SceneView::FusionDistanceMode getFusionDistanceMode() const { return _fusionDistanceMode; }

        /** Get the FusionDistanceValue. Note, only used for USE_FUSION_DISTANCE_VALUE & PROPORTIONAL_TO_SCREEN_DISTANCE modes.*/
        float getFusionDistanceValue() const { return _fusionDistanceValue; }

        
        /** Apply a viewer configuration to set up Cameras and Windowing. */
        void apply(ViewConfig* config);
        
        ViewConfig* getLastAppliedViewConfig() { return _lastAppliedViewConfig.get(); }
        const ViewConfig* getLastAppliedViewConfig() const { return _lastAppliedViewConfig.get(); }
        
        
        /** deprecated, use view.apply(new osgViewer::AcrossAllWindows()). */
        void setUpViewAcrossAllScreens();

        /** depreacted, use view.apply(new osgViewer::SingleWindow(x,y,width,screenNum)). */
        void setUpViewInWindow(int x, int y, int width, int height, unsigned int screenNum=0);

        /** deprecated, use view.apply(new osgViewer::SingleScreen(screenNum)). */
        void setUpViewOnSingleScreen(unsigned int screenNum=0);

        /** deprecated, use view.apply(new osgViewer::SphericalDisplay(radius, collar, screenNum, intensityMap, projectorMatrix)). */
        void setUpViewFor3DSphericalDisplay(double radius=1.0, double collar=0.45, unsigned int screenNum=0, osg::Image* intensityMap=0, const osg::Matrixd& projectorMatrix = osg::Matrixd());

        /** depreacted, use view.apply(new osgViewer::PanoramicSphericalDisplay(radius, collar, screenNum, intensityMap, projectorMatrix)). */
        void setUpViewForPanoramicSphericalDisplay(double radius=1.0, double collar=0.45, unsigned int screenNum=0, osg::Image* intensityMap=0, const osg::Matrixd& projectorMatrix = osg::Matrixd());

        /** deprecated. use view.apply(new osgViewer::WoWVxDisplay(type (20 to 42), screenNum). */
        void setUpViewForWoWVxDisplay(unsigned int screenNum, unsigned char wow_content, unsigned char wow_factor, unsigned char wow_offset, float wow_disparity_Zd, float wow_disparity_vz, float wow_disparity_M, float wow_disparity_C);

        

        /** Convenience method for setting up depth partitioning on the specified camera.*/
        bool setUpDepthPartitionForCamera(osg::Camera* cameraToPartition, DepthPartitionSettings* dps=0);

        /** Convenience method for setting up multiple slave cameras with depth partitioning on each of the view's active cameras.*/
        bool setUpDepthPartition(DepthPartitionSettings* dsp=0);


        /** Return true if this view contains a specified camera.*/
        bool containsCamera(const osg::Camera* camera) const;

        
        /** deprecated. */
        const osg::Camera* getCameraContainingPosition(float x, float y, float& local_x, float& local_y) const;

        /** deprecated. */
        bool computeIntersections(float x,float y, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);

        /** deprecated. */
        bool computeIntersections(float x,float y, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);

        
        /** Compute intersections of a ray, starting the current mouse position, through the specified camera. */
        bool computeIntersections(const osgGA::GUIEventAdapter& ea, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);

        /** Compute intersections of a ray, starting the current mouse position, through the specified master camera's window/eye coordinates and a specified nodePath's subgraph. */
        bool computeIntersections(const osgGA::GUIEventAdapter& ea, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);

        
        /** Compute intersections of a ray through the specified camera. */
        bool computeIntersections(const osg::Camera* camera, osgUtil::Intersector::CoordinateFrame cf, float x,float y, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);

        /** Compute intersections of a ray through the specified camera and a specified nodePath's subgraph. */
        bool computeIntersections(const osg::Camera* camera, osgUtil::Intersector::CoordinateFrame cf, float x,float y, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff);

        virtual void requestRedraw();
        virtual void requestContinuousUpdate(bool needed=true);
        virtual void requestWarpPointer(float x,float y);


    public:
        
        osg::Texture* createDistortionTexture(int width, int height);
        osg::Camera* assignRenderToTextureCamera(osg::GraphicsContext* gc, int width, int height, osg::Texture* texture);
        osg::Camera* assignKeystoneDistortionCamera(osg::DisplaySettings* ds, osg::GraphicsContext* gc, int x, int y, int width, int height, GLenum buffer, osg::Texture* texture, Keystone* keystone);
        osg::Camera* assignStereoCamera(osg::DisplaySettings* ds, osg::GraphicsContext* gc, int x, int y, int width, int height, GLenum buffer, double eyeScale);
        void assignStereoOrKeystoneToCamera(osg::Camera* camera, osg::DisplaySettings* ds);

        struct StereoSlaveCallback : public osg::View::Slave::UpdateSlaveCallback
        {
            StereoSlaveCallback(osg::DisplaySettings* ds, double eyeScale):_ds(ds), _eyeScale(eyeScale) {}

            virtual void updateSlave(osg::View& view, osg::View::Slave& slave);

            osg::ref_ptr<osg::DisplaySettings> _ds;
            double _eyeScale;
        };
        

    public:

        void assignSceneDataToCameras();
        void init();

    protected:

        friend class CompositeViewer;

        virtual ~View();

        virtual osg::GraphicsOperation* createRenderer(osg::Camera* camera);

        osg::observer_ptr<ViewerBase>          _viewerBase;


        osg::Timer_t                            _startTick;

        Devices                                 _eventSources;

        osg::ref_ptr<osgViewer::Scene>          _scene;
        osg::ref_ptr<osgGA::EventQueue>         _eventQueue;
        osg::ref_ptr<osgGA::CameraManipulator>  _cameraManipulator;
        EventHandlers                           _eventHandlers;

        osg::ObserverNodePath                   _coordinateSystemNodePath;

        osg::ref_ptr<osg::DisplaySettings>      _displaySettings;
        osgUtil::SceneView::FusionDistanceMode  _fusionDistanceMode;
        float                                   _fusionDistanceValue;

        osg::ref_ptr<ViewConfig>                _lastAppliedViewConfig;
        
};

}

#endif