446 lines
18 KiB
C++
446 lines
18 KiB
C++
/* -*-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_VIEWEREVENTHANDLERS
|
|
#define OSGVIEWER_VIEWEREVENTHANDLERS 1
|
|
|
|
#include <osg/AnimationPath>
|
|
#include <osgText/Text>
|
|
#include <osgGA/GUIEventHandler>
|
|
#include <osgGA/AnimationPathManipulator>
|
|
|
|
#include <osgViewer/GraphicsWindow>
|
|
#include <osgViewer/Viewer>
|
|
|
|
#include <osgDB/fstream>
|
|
|
|
namespace osgViewer {
|
|
|
|
/** Event handler for adding on screen help to Viewers.*/
|
|
class OSGVIEWER_EXPORT HelpHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
HelpHandler(osg::ApplicationUsage* au=0);
|
|
|
|
void setApplicationUsage(osg::ApplicationUsage* au) { _applicationUsage = au; }
|
|
osg::ApplicationUsage* getApplicationUsage() { return _applicationUsage.get(); }
|
|
const osg::ApplicationUsage* getApplicationUsage() const { return _applicationUsage.get(); }
|
|
|
|
void setKeyEventTogglesOnScreenHelp(int key) { _keyEventTogglesOnScreenHelp = key; }
|
|
int getKeyEventTogglesOnScreenHelp() const { return _keyEventTogglesOnScreenHelp; }
|
|
|
|
void reset();
|
|
|
|
osg::Camera* getCamera() { return _camera.get(); }
|
|
const osg::Camera* getCamera() const { return _camera.get(); }
|
|
|
|
bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa);
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
protected:
|
|
|
|
void setUpHUDCamera(osgViewer::ViewerBase* viewer);
|
|
|
|
void setUpScene(osgViewer::ViewerBase* viewer);
|
|
|
|
osg::ref_ptr<osg::ApplicationUsage> _applicationUsage;
|
|
|
|
int _keyEventTogglesOnScreenHelp;
|
|
|
|
bool _helpEnabled;
|
|
|
|
bool _initialized;
|
|
osg::ref_ptr<osg::Camera> _camera;
|
|
osg::ref_ptr<osg::Switch> _switch;
|
|
|
|
};
|
|
|
|
/**
|
|
* Event handler for adding on screen stats reporting to Viewers.
|
|
*/
|
|
class OSGVIEWER_EXPORT StatsHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
StatsHandler();
|
|
|
|
enum StatsType
|
|
{
|
|
NO_STATS = 0,
|
|
FRAME_RATE = 1,
|
|
VIEWER_STATS = 2,
|
|
CAMERA_SCENE_STATS = 3,
|
|
VIEWER_SCENE_STATS = 4,
|
|
LAST = 5
|
|
};
|
|
|
|
void setKeyEventTogglesOnScreenStats(int key) { _keyEventTogglesOnScreenStats = key; }
|
|
int getKeyEventTogglesOnScreenStats() const { return _keyEventTogglesOnScreenStats; }
|
|
|
|
void setKeyEventPrintsOutStats(int key) { _keyEventPrintsOutStats = key; }
|
|
int getKeyEventPrintsOutStats() const { return _keyEventPrintsOutStats; }
|
|
|
|
void setKeyEventToggleVSync(int key) { _keyEventToggleVSync = key; }
|
|
int getKeyEventToggleVSync() const { return _keyEventToggleVSync; }
|
|
|
|
double getBlockMultiplier() const { return _blockMultiplier; }
|
|
|
|
void reset();
|
|
|
|
osg::Camera* getCamera() { return _camera.get(); }
|
|
const osg::Camera* getCamera() const { return _camera.get(); }
|
|
|
|
virtual bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa);
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
protected:
|
|
|
|
void setUpHUDCamera(osgViewer::ViewerBase* viewer);
|
|
|
|
osg::Geometry* createBackgroundRectangle(const osg::Vec3& pos, const float width, const float height, osg::Vec4& color);
|
|
|
|
osg::Geometry* createGeometry(const osg::Vec3& pos, float height, const osg::Vec4& colour, unsigned int numBlocks);
|
|
|
|
osg::Geometry* createFrameMarkers(const osg::Vec3& pos, float height, const osg::Vec4& colour, unsigned int numBlocks);
|
|
|
|
osg::Geometry* createTick(const osg::Vec3& pos, float height, const osg::Vec4& colour, unsigned int numTicks);
|
|
|
|
osg::Node* createCameraTimeStats(const std::string& font, osg::Vec3& pos, float startBlocks, bool acquireGPUStats, float characterSize, osg::Stats* viewerStats, osg::Camera* camera);
|
|
|
|
void setUpScene(osgViewer::ViewerBase* viewer);
|
|
|
|
void updateThreadingModelText();
|
|
|
|
int _keyEventTogglesOnScreenStats;
|
|
int _keyEventPrintsOutStats;
|
|
int _keyEventToggleVSync;
|
|
|
|
int _statsType;
|
|
|
|
bool _initialized;
|
|
osg::ref_ptr<osg::Camera> _camera;
|
|
|
|
osg::ref_ptr<osg::Switch> _switch;
|
|
|
|
ViewerBase::ThreadingModel _threadingModel;
|
|
osg::ref_ptr<osgText::Text> _threadingModelText;
|
|
|
|
unsigned int _frameRateChildNum;
|
|
unsigned int _viewerChildNum;
|
|
unsigned int _cameraSceneChildNum;
|
|
unsigned int _viewerSceneChildNum;
|
|
unsigned int _numBlocks;
|
|
double _blockMultiplier;
|
|
|
|
float _statsWidth;
|
|
float _statsHeight;
|
|
|
|
|
|
};
|
|
|
|
/** Event handler allowing to change the screen resolution (in windowed mode) and toggle between fullscreen and windowed mode. */
|
|
class OSGVIEWER_EXPORT WindowSizeHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
WindowSizeHandler();
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage &usage) const;
|
|
|
|
void setKeyEventToggleFullscreen(int key) { _keyEventToggleFullscreen = key; }
|
|
int getKeyEventToggleFullscreen() const { return _keyEventToggleFullscreen; }
|
|
|
|
void setToggleFullscreen(bool flag) { _toggleFullscreen = flag; }
|
|
bool getToggleFullscreen() const { return _toggleFullscreen; }
|
|
|
|
void setKeyEventWindowedResolutionUp(int key) { _keyEventWindowedResolutionUp = key; }
|
|
int getKeyEventWindowedResolutionUp() const { return _keyEventWindowedResolutionUp; }
|
|
void setKeyEventWindowedResolutionDown(int key) { _keyEventWindowedResolutionDown = key; }
|
|
int getKeyEventWindowedResolutionDown() const { return _keyEventWindowedResolutionUp; }
|
|
|
|
void setChangeWindowedResolution(bool flag) { _changeWindowedResolution = flag; }
|
|
bool getChangeWindowedResolution() const { return _changeWindowedResolution; }
|
|
|
|
virtual bool handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa);
|
|
|
|
protected:
|
|
|
|
void toggleFullscreen(osgViewer::GraphicsWindow *window);
|
|
void changeWindowedResolution(osgViewer::GraphicsWindow *window, bool increase);
|
|
|
|
unsigned int getNearestResolution(int screenWidth, int screenHeight, int width, int height) const;
|
|
|
|
int _keyEventToggleFullscreen;
|
|
bool _toggleFullscreen;
|
|
|
|
int _keyEventWindowedResolutionUp;
|
|
int _keyEventWindowedResolutionDown;
|
|
bool _changeWindowedResolution;
|
|
std::vector<osg::Vec2> _resolutionList;
|
|
int _currentResolutionIndex;
|
|
};
|
|
|
|
/** Event handler allowing to change the viewer threading model */
|
|
class OSGVIEWER_EXPORT ThreadingHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
ThreadingHandler();
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage &usage) const;
|
|
|
|
void setKeyEventChangeThreadingModel(int key) { _keyEventChangeThreadingModel = key; }
|
|
int getKeyEventChangeThreadingModel() const { return _keyEventChangeThreadingModel; }
|
|
|
|
void setChangeThreadingModel(bool flag) { _changeThreadingModel = flag; }
|
|
bool getChangeThreadingModel() const { return _changeThreadingModel; }
|
|
|
|
void setKeyEventChangeEndBarrierPosition(int key) { _keyEventChangeEndBarrierPosition = key; }
|
|
int getKeyEventChangeEndBarrierPosition() const { return _keyEventChangeEndBarrierPosition; }
|
|
|
|
void setChangeEndBarrierPosition(bool flag) { _changeEndBarrierPosition = flag; }
|
|
bool getChangeEndBarrierPosition() const { return _changeEndBarrierPosition; }
|
|
|
|
bool handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa);
|
|
|
|
protected:
|
|
|
|
int _keyEventChangeThreadingModel;
|
|
bool _changeThreadingModel;
|
|
|
|
int _keyEventChangeEndBarrierPosition;
|
|
bool _changeEndBarrierPosition;
|
|
|
|
osg::Timer_t _tickOrLastKeyPress;
|
|
bool _done;
|
|
};
|
|
|
|
/**
|
|
* Event handler allowing the user to record the animation "path" of a camera. In it's current
|
|
* implementation, this handler cannot guarantee the final view matrix is correct; it is
|
|
* conceivable that the matrix may be one frame off. Eh--not a big deal! :)
|
|
* TODO: Write the file as we go, not when it's all done.
|
|
* TODO: Create an osgviewer on-screen indication that animation is taking place.
|
|
*/
|
|
class OSGVIEWER_EXPORT RecordCameraPathHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
RecordCameraPathHandler(const std::string &filename = "saved_animation.path", float fps = 25.0f);
|
|
|
|
void setKeyEventToggleRecord(int key) { _keyEventToggleRecord = key; }
|
|
int getKeyEventToggleRecord() const { return _keyEventToggleRecord; }
|
|
|
|
void setKeyEventTogglePlayback(int key) { _keyEventTogglePlayback = key; }
|
|
int getKeyEventTogglePlayback() const { return _keyEventTogglePlayback; }
|
|
|
|
void setAutoIncrementFilename( bool autoinc = true ) { _autoinc = autoinc?0:-1; }
|
|
|
|
virtual void getUsage(osg::ApplicationUsage &usage) const;
|
|
|
|
bool handle(const osgGA::GUIEventAdapter &ea, osgGA::GUIActionAdapter &aa);
|
|
|
|
protected:
|
|
|
|
std::string _filename;
|
|
int _autoinc;
|
|
osgDB::ofstream _fout;
|
|
|
|
int _keyEventToggleRecord;
|
|
int _keyEventTogglePlayback;
|
|
|
|
|
|
bool _currentlyRecording;
|
|
bool _currentlyPlaying;
|
|
double _interval;
|
|
double _delta;
|
|
osg::Timer_t _animStartTime;
|
|
osg::Timer_t _lastFrameTime;
|
|
osg::ref_ptr<osg::AnimationPath> _animPath;
|
|
osg::ref_ptr<osgGA::AnimationPathManipulator> _animPathManipulator;
|
|
osg::ref_ptr<osgGA::CameraManipulator> _oldManipulator;
|
|
};
|
|
|
|
/** Event handler for increase/decreasing LODScale.*/
|
|
class OSGVIEWER_EXPORT LODScaleHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
LODScaleHandler();
|
|
|
|
void setKeyEventIncreaseLODScale(int key) { _keyEventIncreaseLODScale = key; }
|
|
int getKeyEventIncreaseLODScale() const { return _keyEventIncreaseLODScale; }
|
|
|
|
void setKeyEventDecreaseLODScale(int key) { _keyEventDecreaseLODScale = key; }
|
|
int getKeyEventDecreaseLODScale() const { return _keyEventDecreaseLODScale; }
|
|
|
|
bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa);
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
protected:
|
|
|
|
|
|
int _keyEventIncreaseLODScale;
|
|
int _keyEventDecreaseLODScale;
|
|
|
|
|
|
};
|
|
|
|
|
|
/** Event handler that will capture the screen on key press. */
|
|
class OSGVIEWER_EXPORT ScreenCaptureHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
/** Abstract base class for what to do when a screen capture happens. */
|
|
class CaptureOperation : public osg::Referenced
|
|
{
|
|
public:
|
|
virtual void operator()(const osg::Image& image, const unsigned int context_id) = 0;
|
|
};
|
|
|
|
/** Concrete implementation of a CaptureOperation that writes the screen capture to a file. */
|
|
class OSGVIEWER_EXPORT WriteToFile : public CaptureOperation
|
|
{
|
|
public:
|
|
enum SavePolicy
|
|
{
|
|
OVERWRITE,
|
|
SEQUENTIAL_NUMBER
|
|
// ... any others?
|
|
};
|
|
|
|
WriteToFile(const std::string& filename, const std::string& extension, SavePolicy savePolicy = SEQUENTIAL_NUMBER);
|
|
|
|
virtual void operator()(const osg::Image& image, const unsigned int context_id);
|
|
|
|
void setSavePolicy(SavePolicy savePolicy) { _savePolicy = savePolicy; }
|
|
SavePolicy getSavePolicy() const { return _savePolicy; }
|
|
|
|
protected:
|
|
|
|
WriteToFile& operator = (const WriteToFile&) { return *this; }
|
|
|
|
const std::string _filename;
|
|
const std::string _extension;
|
|
|
|
SavePolicy _savePolicy;
|
|
|
|
std::vector<unsigned int> _contextSaveCounter;
|
|
};
|
|
|
|
/** @param numFrames >0: capture that number of frames. <0: capture all frames, call stopCapture() to stop it. */
|
|
ScreenCaptureHandler(CaptureOperation* defaultOperation = 0, int numFrames = 1);
|
|
|
|
void setKeyEventTakeScreenShot(int key) { _keyEventTakeScreenShot = key; }
|
|
int getKeyEventTakeScreenShot() const { return _keyEventTakeScreenShot; }
|
|
|
|
void setKeyEventToggleContinuousCapture(int key) { _keyEventToggleContinuousCapture = key; }
|
|
int getKeyEventToggleContinuousCapture() const { return _keyEventToggleContinuousCapture; }
|
|
|
|
void setCaptureOperation(CaptureOperation* operation);
|
|
CaptureOperation* getCaptureOperation() const;
|
|
|
|
// aa will point to an osgViewer::View, so we will take a screenshot
|
|
// of that view's graphics contexts.
|
|
virtual bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter& aa);
|
|
|
|
/** Capture the given viewer's views on the next frame. */
|
|
virtual void captureNextFrame(osgViewer::ViewerBase& viewer);
|
|
|
|
/** Set the number of frames to capture.
|
|
@param numFrames >0: capture that number of frames. <0: capture all frames, call stopCapture() to stop it. */
|
|
void setFramesToCapture(int numFrames);
|
|
|
|
/** Get the number of frames to capture. */
|
|
int getFramesToCapture() const;
|
|
|
|
/** Start capturing any viewer(s) the handler is attached to at the
|
|
end of the next frame. */
|
|
void startCapture();
|
|
|
|
/** Stop capturing. */
|
|
void stopCapture();
|
|
|
|
/** Get the keyboard and mouse usage of this manipulator.*/
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
protected:
|
|
bool _startCapture;
|
|
bool _stopCapture;
|
|
|
|
int _keyEventTakeScreenShot;
|
|
int _keyEventToggleContinuousCapture;
|
|
// there could be a key to start taking screenshots every new frame
|
|
|
|
osg::ref_ptr<CaptureOperation> _operation;
|
|
osg::ref_ptr<osg::Camera::DrawCallback> _callback;
|
|
|
|
void addCallbackToViewer(osgViewer::ViewerBase& viewer);
|
|
void removeCallbackFromViewer(osgViewer::ViewerBase& viewer);
|
|
osg::Camera* findAppropriateCameraForCallback(osgViewer::ViewerBase& viewer);
|
|
};
|
|
|
|
/** InteractiveImage is an event handler that computes the mouse coordinates in an images coordinate frame
|
|
* and then passes keyboard and mouse events to it. This event handler is useful for vnc or browser
|
|
* surfaces in the 3D scene.*/
|
|
class OSGVIEWER_EXPORT InteractiveImageHandler : public osgGA::GUIEventHandler, public osg::Drawable::CullCallback
|
|
{
|
|
public:
|
|
|
|
/// Constructor to use when the InteractiveImage is in the 3D scene (i.e. not in a fullscreen HUD overlay).
|
|
InteractiveImageHandler(osg::Image* image);
|
|
/// Constructor to use when the InteractiveImage is in a fullscreen HUD overlay.
|
|
InteractiveImageHandler(osg::Image* image, osg::Texture2D* texture, osg::Camera* camera);
|
|
|
|
META_Object(osgViewer, InteractiveImageHandler);
|
|
|
|
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object*, osg::NodeVisitor* nv);
|
|
|
|
virtual bool cull(osg::NodeVisitor* nv, osg::Drawable* drawable, osg::RenderInfo* renderInfo) const;
|
|
|
|
protected:
|
|
|
|
virtual ~InteractiveImageHandler() {}
|
|
|
|
InteractiveImageHandler() {}
|
|
|
|
InteractiveImageHandler(const InteractiveImageHandler&,const osg::CopyOp& = osg::CopyOp::SHALLOW_COPY):
|
|
osg::Object(), osgGA::GUIEventHandler(), osg::Drawable::CullCallback() {}
|
|
|
|
bool mousePosition(osgViewer::View* view, osg::NodeVisitor* nv, const osgGA::GUIEventAdapter& ea, int& x, int &y) const;
|
|
bool computeIntersections(osgViewer::View* view, float x,float y, const osg::NodePath& nodePath, osgUtil::LineSegmentIntersector::Intersections& intersections,osg::Node::NodeMask traversalMask = 0xffffffff) const;
|
|
|
|
void resize(int width, int height);
|
|
|
|
osg::observer_ptr<osg::Image> _image;
|
|
osg::observer_ptr<osg::Texture2D> _texture;
|
|
|
|
bool _fullscreen;
|
|
osg::observer_ptr<osg::Camera> _camera;
|
|
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|