/usr/include/osgPresentation/SlideEventHandler is in libopenscenegraph-dev 3.2.1-6.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 | /* -*-c++-*- Present3D - Copyright (C) 1999-2006 Robert Osfield
*
* This software is open source and may be redistributed and/or modified under
* the terms of the GNU General Public License (GPL) version 2.0.
* The full license is in LICENSE.txt file included with this distribution,.
*
* This software 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
* include LICENSE.txt for more details.
*/
#ifndef SLIDEEVENTHANDLER
#define SLIDEEVENTHANDLER 1
#include <osg/Switch>
#include <osg/Timer>
#include <osg/ValueObject>
#include <osg/ImageSequence>
#include <osgGA/GUIEventHandler>
#include <osgViewer/Viewer>
#include <osgPresentation/CompileSlideCallback>
#include <osgPresentation/PropertyManager>
namespace osgPresentation
{
// forward declare
class SlideEventHandler;
/// Operations related to click to run/load/key events.
enum Operation
{
RUN,
LOAD,
EVENT,
JUMP,
FORWARD_EVENT
};
struct JumpData
{
JumpData():
relativeJump(true),
slideNum(0),
layerNum(0) {}
JumpData(bool in_relativeJump, int in_slideNum, int in_layerNum):
relativeJump(in_relativeJump),
slideNum(in_slideNum),
layerNum(in_layerNum) {}
JumpData(const std::string& in_slideName, const std::string& in_layerName):
relativeJump(true),
slideNum(0),
layerNum(0),
slideName(in_slideName),
layerName(in_layerName) {}
JumpData(const JumpData& rhs):
relativeJump(rhs.relativeJump),
slideNum(rhs.slideNum),
layerNum(rhs.layerNum),
slideName(rhs.slideName),
layerName(rhs.layerName) {}
JumpData& operator = (const JumpData& rhs)
{
if (&rhs==this) return *this;
relativeJump = rhs.relativeJump;
slideNum = rhs.slideNum;
layerNum = rhs.layerNum;
slideName = rhs.slideName;
layerName = rhs.layerName;
return *this;
}
bool requiresJump() const
{
if (!slideName.empty() || !layerName.empty()) return true;
return relativeJump ? (slideNum!=0 || layerNum!=0) : true;
}
bool jump(SlideEventHandler* seh) const;
bool relativeJump;
int slideNum;
int layerNum;
std::string slideName;
std::string layerName;
};
struct HomePosition : public virtual osg::Referenced
{
HomePosition() {}
HomePosition(const osg::Vec3& in_eye, const osg::Vec3& in_center, const osg::Vec3& in_up):
eye(in_eye),
center(in_center),
up(in_up) {}
osg::Vec3 eye;
osg::Vec3 center;
osg::Vec3 up;
};
struct KeyPosition
{
KeyPosition(unsigned int key=0, float x=FLT_MAX, float y=FLT_MAX):
_key((osgGA::GUIEventAdapter::KeySymbol)key),
_x(x),
_y(y) {}
void set(unsigned int key=0, float x=FLT_MAX, float y=FLT_MAX)
{
_key = (osgGA::GUIEventAdapter::KeySymbol)key;
_x = x;
_y = y;
}
osgGA::GUIEventAdapter::KeySymbol _key;
float _x;
float _y;
};
struct LayerCallback : public virtual osg::Referenced
{
virtual void operator() (osg::Node* node) const = 0;
};
struct OSGPRESENTATION_EXPORT LayerAttributes : public virtual osg::Referenced
{
LayerAttributes():_duration(0) {}
LayerAttributes(double in_duration):_duration(in_duration) {}
void setDuration(double duration) { _duration = duration; }
double getDuration() const { return _duration; }
typedef std::vector<KeyPosition> Keys;
typedef std::vector<std::string> RunStrings;
void setKeys(const Keys& keys) { _keys = keys; }
const Keys& getKeys() const { return _keys; }
void addKey(const KeyPosition& kp) { _keys.push_back(kp); }
void setRunStrings(const RunStrings& runStrings) { _runStrings = runStrings; }
const RunStrings& getRunStrings() const { return _runStrings; }
void addRunString(const std::string& runString) { _runStrings.push_back(runString); }
void setJump(const JumpData& jumpData) { _jumpData = jumpData; }
const JumpData& getJumpData() const { return _jumpData; }
double _duration;
Keys _keys;
RunStrings _runStrings;
JumpData _jumpData;
void addEnterCallback(LayerCallback* lc) { _enterLayerCallbacks.push_back(lc); }
void addLeaveCallback(LayerCallback* lc) { _leaveLayerCallbacks.push_back(lc); }
void callEnterCallbacks(osg::Node* node);
void callLeaveCallbacks(osg::Node* node);
typedef std::list< osg::ref_ptr<LayerCallback> > LayerCallbacks;
LayerCallbacks _enterLayerCallbacks;
LayerCallbacks _leaveLayerCallbacks;
};
struct FilePathData : public virtual osg::Referenced
{
FilePathData(const osgDB::FilePathList& fpl):filePathList(fpl) {}
osgDB::FilePathList filePathList;
};
struct dereference_less
{
template<class T, class U>
inline bool operator() (const T& lhs,const U& rhs) const
{
return *lhs < *rhs;
}
};
struct ObjectOperator : public osg::Referenced
{
inline bool operator < (const ObjectOperator& rhs) const { return ptr() < rhs.ptr(); }
virtual void* ptr() const = 0;
virtual void enter(SlideEventHandler*) = 0;
virtual void frame(SlideEventHandler*) {} ;
virtual void maintain(SlideEventHandler*) = 0;
virtual void leave(SlideEventHandler*) = 0;
virtual void setPause(SlideEventHandler*, bool pause) = 0;
virtual void reset(SlideEventHandler*) = 0;
virtual ~ObjectOperator() {}
};
class OSGPRESENTATION_EXPORT ActiveOperators
{
public:
ActiveOperators();
~ActiveOperators();
void collect(osg::Node* incommingNode, osg::NodeVisitor::TraversalMode tm = osg::NodeVisitor::TRAVERSE_ACTIVE_CHILDREN);
void process(SlideEventHandler* seh);
void frame(SlideEventHandler*);
void setPause(SlideEventHandler* seh, bool pause);
bool getPause() const { return _pause; }
void reset(SlideEventHandler* seh);
typedef std::set< osg::ref_ptr<ObjectOperator>, dereference_less > OperatorList;
protected:
void processOutgoing(SlideEventHandler* seh);
void processIncomming(SlideEventHandler* seh);
void processMaintained(SlideEventHandler* seh);
bool _pause;
OperatorList _previous;
OperatorList _current;
OperatorList _outgoing;
OperatorList _incomming;
OperatorList _maintained;
};
class OSGPRESENTATION_EXPORT SlideEventHandler : public osgGA::GUIEventHandler
{
public:
SlideEventHandler(osgViewer::Viewer* viewer=0);
static SlideEventHandler* instance();
META_Object(osgslideshowApp,SlideEventHandler);
void set(osg::Node* model);
virtual void accept(osgGA::GUIEventHandlerVisitor& v) { v.visit(*this); }
/** Event traversal node callback method.*/
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv);
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
virtual void getUsage(osg::ApplicationUsage& usage) const;
osgViewer::Viewer* getViewer() { return _viewer.get(); }
osg::Switch* getPresentationSwitch() { return _presentationSwitch.get(); }
enum WhichPosition
{
FIRST_POSITION = 0,
LAST_POSITION = -1
};
void compileSlide(unsigned int slideNum);
void releaseSlide(unsigned int slideNum);
unsigned int getNumSlides();
int getActiveSlide() const { return _activeSlide; }
int getActiveLayer() const { return _activeLayer; }
osg::Switch* getSlide(int slideNum);
osg::Node* getLayer(int slideNum, int layerNum);
bool selectSlide(int slideNum,int layerNum=FIRST_POSITION);
bool selectLayer(int layerNum);
bool nextLayerOrSlide();
bool previousLayerOrSlide();
bool nextSlide();
bool previousSlide();
bool nextLayer();
bool previousLayer();
bool home();
void setAutoSteppingActive(bool flag = true) { _autoSteppingActive = flag; }
bool getAutoSteppingActive() const { return _autoSteppingActive; }
void setTimeDelayBetweenSlides(double dt) { _timePerSlide = dt; }
double getTimeDelayBetweenSlides() const { return _timePerSlide; }
double getDuration(const osg::Node* node) const;
double getCurrentTimeDelayBetweenSlides() const;
void setReleaseAndCompileOnEachNewSlide(bool flag) { _releaseAndCompileOnEachNewSlide = flag; }
bool getReleaseAndCompileOnEachNewSlide() const { return _releaseAndCompileOnEachNewSlide; }
void setTimeDelayOnNewSlideWithMovies(float t) { _timeDelayOnNewSlideWithMovies = t; }
float getTimeDelayOnNewSlideWithMovies() const { return _timeDelayOnNewSlideWithMovies; }
void setLoopPresentation(bool loop) { _loopPresentation = loop; }
bool getLoopPresentation() const { return _loopPresentation; }
void dispatchEvent(const KeyPosition& keyPosition);
void setRequestReload(bool flag);
bool getRequestReload() const { return _requestReload; }
double getReferenceTime() const { return _referenceTime; }
protected:
~SlideEventHandler() {}
SlideEventHandler(const SlideEventHandler&,const osg::CopyOp&) {}
bool home(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa);
void updateAlpha(bool, bool, float x, float y);
void updateLight(float x, float y);
void updateOperators();
osg::observer_ptr<osgViewer::Viewer> _viewer;
osg::observer_ptr<osg::Switch> _showSwitch;
int _activePresentation;
osg::observer_ptr<osg::Switch> _presentationSwitch;
int _activeSlide;
osg::observer_ptr<osg::Switch> _slideSwitch;
int _activeLayer;
bool _firstTraversal;
double _referenceTime;
double _previousTime;
double _timePerSlide;
bool _autoSteppingActive;
bool _loopPresentation;
bool _pause;
bool _hold;
bool _updateLightActive;
bool _updateOpacityActive;
float _previousX, _previousY;
bool _cursorOn;
bool _releaseAndCompileOnEachNewSlide;
bool _firstSlideOrLayerChange;
osg::Timer_t _tickAtFirstSlideOrLayerChange;
osg::Timer_t _tickAtLastSlideOrLayerChange;
float _timeDelayOnNewSlideWithMovies;
double _minimumTimeBetweenKeyPresses;
double _timeLastKeyPresses;
ActiveOperators _activeOperators;
osg::ref_ptr<CompileSlideCallback> _compileSlideCallback;
bool _requestReload;
};
}
#endif
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