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Added help support for display help on screen to osgProducer::Viewer.

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This commit is contained in:
Robert Osfield 2003-03-26 12:50:30 +00:00
parent e00b8f2868
commit 8779fe20a7
18 changed files with 370 additions and 39 deletions
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2
Make/makedirdefs
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@ -12,9 +12,9 @@ SRC_DIRS = \
osgDB\
osgGA\
osgParticle\
osgProducer\
osgText\
osgSim\
osgProducer\
osgPlugins\
../examples

4
examples/osgtexture3D/osgtexture3D.cpp
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@ -100,7 +100,7 @@ class ConstructStateCallback : public osgProducer::OsgCameraGroup::RealizeCallba
return stateset;
}
virtual void operator()(const Producer::RenderSurface&, osgProducer::OsgCameraGroup* , osgProducer::OsgSceneHandler* sh)
virtual void operator()( osgProducer::OsgCameraGroup&, osgProducer::OsgSceneHandler& sh, const Producer::RenderSurface& )
{
if (!_initialized)
{
@ -111,7 +111,7 @@ class ConstructStateCallback : public osgProducer::OsgCameraGroup::RealizeCallba
if (_node) _node->setStateSet(constructState());
}
// now safe to con
sh->init();
sh.init();
}

2
examples/osgviewer/osgviewer.cpp
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@ -20,6 +20,8 @@ int main( int argc, char **argv )
osg::ArgumentParser arguments(&argc,argv);
// set up the usage document, in case we need to print out how to use this program.
arguments.getApplicationUsage()->setApplicatonName(arguments.getProgramName());
arguments.getApplicationUsage()->setDescription(arguments.getProgramName()+" is the standard OpenSceneGraph example which loads and visualises 3d models.");
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getProgramName()+" [options] filename ...");
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");

12
include/osg/ApplicationUsage
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@ -34,6 +34,13 @@ class SG_EXPORT ApplicationUsage
typedef std::map<std::string,std::string> UsageMap;
void setApplicatonName(const std::string& name) { _applicationName = name; }
const std::string& getApplicatonName() const { return _applicationName; }
void setDescription(const std::string& desc) { _description = desc; }
const std::string& getDescription() const { return _description; }
enum Type
{
COMMAND_LINE_OPTION,
@ -63,13 +70,16 @@ class SG_EXPORT ApplicationUsage
const UsageMap& getKeyboardMouseBindings() const { return _keyboardMouse; }
void getFormatedString(std::string& str, const UsageMap& um,unsigned int widthOfOutput=80);
void write(std::ostream& output,const UsageMap& um,unsigned int widthOfOutput=80);
void write(std::ostream& output,unsigned int widthOfOutput=80);
protected:
std::string _applicationName;
std::string _description;
std::string _commandLineUsage;
UsageMap _commandLineOptions;
UsageMap _environmentalVariables;

7
include/osg/Viewport
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@ -27,6 +27,13 @@ class SG_EXPORT Viewport : public StateAttribute
Viewport();
Viewport(int x,int y,int width,int height):
_x(x),
_y(y),
_width(width),
_height(height) {}
/** Copy constructor using CopyOp to manage deep vs shallow copy.*/
Viewport(const Viewport& vp,const CopyOp& copyop=CopyOp::SHALLOW_COPY):

3
include/osgGA/CameraManipulator
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@ -35,6 +35,9 @@ class OSGGA_EXPORT CameraManipulator : public GUIEventHandler
{
public:
virtual const char* className() { return "CameraManipulator"; }
/** Attach a camera to the manipulator to be used for specifying view.*/
virtual void setCamera(osg::Camera*);

4
include/osgGA/DriveManipulator
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@ -31,8 +31,6 @@ class OSGGA_EXPORT DriveManipulator : public CameraManipulator
DriveManipulator();
virtual ~DriveManipulator();
virtual const char* className() { return "Drive"; }
virtual void setNode(osg::Node*);
@ -52,6 +50,8 @@ class OSGGA_EXPORT DriveManipulator : public CameraManipulator
protected:
virtual ~DriveManipulator();
/** Reset the internal GUIEvent stack.*/
void flushMouseEventStack();

3
include/osgGA/FlightManipulator
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@ -30,7 +30,6 @@ class OSGGA_EXPORT FlightManipulator : public CameraManipulator
public:
FlightManipulator();
virtual ~FlightManipulator();
virtual const char* className() { return "Flight"; }
@ -59,6 +58,8 @@ class OSGGA_EXPORT FlightManipulator : public CameraManipulator
protected:
virtual ~FlightManipulator();
/** Reset the internal GUIEvent stack.*/
void flushMouseEventStack();
/** Add the current mouse GUIEvent to internal stack.*/

3
include/osgGA/TrackballManipulator
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@ -23,7 +23,6 @@ class OSGGA_EXPORT TrackballManipulator : public CameraManipulator
public:
TrackballManipulator();
virtual ~TrackballManipulator();
virtual const char* className() { return "Trackball"; }
@ -54,6 +53,8 @@ class OSGGA_EXPORT TrackballManipulator : public CameraManipulator
protected:
virtual ~TrackballManipulator();
/** Reset the internal GUIEvent stack.*/
void flushMouseEventStack();
/** Add the current mouse GUIEvent to internal stack.*/

7
include/osgProducer/FrameStatsHandler
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@ -44,7 +44,12 @@ class FrameStatsHandler : public Producer::CameraGroup::StatsHandler, public Pro
{
if (!camera.getInstrumentationMode()) return;
glViewport( 0, 0, 1280, 1024 );
int x,y;
unsigned int width,height;
camera.getProjectionRect(x,y,width,height);
glViewport( x, y, width, height );
// Set up the Orthographic view
glMatrixMode( GL_PROJECTION );
glPushMatrix();

5
include/osgProducer/OsgCameraGroup
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@ -119,7 +119,7 @@ class OSGPRODUCER_EXPORT OsgCameraGroup : public Producer::CameraGroup
class OSGPRODUCER_EXPORT RealizeCallback : public osg::Referenced
{
public:
virtual void operator()( const Producer::RenderSurface & rs, OsgCameraGroup* cg, OsgSceneHandler* sh) = 0;
virtual void operator()( OsgCameraGroup& cg, OsgSceneHandler& sh, const Producer::RenderSurface & rs) = 0;
protected:
virtual ~RealizeCallback() {}
@ -133,9 +133,6 @@ class OSGPRODUCER_EXPORT OsgCameraGroup : public Producer::CameraGroup
/** Get the const realize callback.*/
const RealizeCallback* getRealizeCallback() const { return _realizeCallback.get(); }
void advance();

53
include/osgProducer/OsgSceneHandler
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@ -30,12 +30,54 @@ class OSGPRODUCER_EXPORT OsgSceneHandler : public Producer::Camera::SceneHandler
/// override the init method to force it be run one at a time.
virtual void init();
class Callback : public osg::Referenced
{
public:
virtual ~Callback() {}
virtual void operator()(OsgSceneHandler&, const Producer::Camera &) = 0;
};
virtual void clear(Producer::Camera& camera)
{
if (_clearCallback.valid()) (*_clearCallback)(*this,camera);
else clearImplementation(camera);
}
virtual void clear(Producer::Camera& camera);
virtual void clearImplementation(Producer::Camera& camera);
void setClearCallback(Callback* callback) { _clearCallback = callback; }
Callback* getClearCallback() { return _clearCallback.get(); }
const Callback* getClearCallback() const { return _clearCallback.get(); }
virtual void cull(Producer::Camera& camera)
{
if (_cullCallback.valid()) (*_cullCallback)(*this,camera);
else cullImplementation(camera);
}
virtual void cullImplementation(Producer::Camera& camera);
void setCullCallback(Callback* callback) { _cullCallback = callback; }
Callback* getCullCallback() { return _cullCallback.get(); }
const Callback* getCullCallback() const { return _cullCallback.get(); }
virtual void draw(Producer::Camera& camera)
{
if (_drawCallback.valid()) (*_drawCallback)(*this,camera);
else drawImplementation(camera);
}
virtual void drawImplementation(Producer::Camera& camera);
void setDrawCallback(Callback* callback) { _drawCallback = callback; }
Callback* getDrawCallback() { return _drawCallback.get(); }
const Callback* getDrawCallback() const { return _drawCallback.get(); }
virtual void cull(Producer::Camera& camera);
virtual void draw(Producer::Camera& camera);
void setContextID( int id );
@ -43,8 +85,13 @@ class OSGPRODUCER_EXPORT OsgSceneHandler : public Producer::Camera::SceneHandler
virtual ~OsgSceneHandler() {}
osg::ref_ptr<osg::RefMatrix> mm;
osg::ref_ptr<osg::RefMatrix> pm;
osg::ref_ptr<Callback> _clearCallback;
osg::ref_ptr<Callback> _cullCallback;
osg::ref_ptr<Callback> _drawCallback;
};
}

15
include/osgProducer/ViewerEventHandler
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@ -23,7 +23,7 @@ class ViewerEventHandler : public osgGA::GUIEventHandler
{
public:
ViewerEventHandler(osgProducer::OsgCameraGroup* cg);
ViewerEventHandler(OsgCameraGroup* cg);
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa);
@ -31,12 +31,25 @@ class ViewerEventHandler : public osgGA::GUIEventHandler
/** Get the keyboard and mouse usage of this manipulator.*/
virtual void getUsage(osg::ApplicationUsage& usage) const;
OsgCameraGroup* getOsgCameraGroup() { return _cg; }
const OsgCameraGroup* getOsgCameraGroup() const { return _cg; }
void setWriteNodeFileName(const std::string& filename) { _writeNodeFileName = filename; }
const std::string& getWriteNodeFileName() const { return _writeNodeFileName; }
void setDisplayHelp(bool displayHelp) { _displayHelp = displayHelp; }
bool getDisplayHelp() const { return _displayHelp; }
protected:
osgProducer::OsgCameraGroup* _cg;
std::string _writeNodeFileName;
bool _displayHelp;
};
}

14
src/osg/ApplicationUsage.cpp
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@ -45,7 +45,7 @@ void ApplicationUsage::addKeyboardMouseBinding(const std::string& option,const s
_keyboardMouse[option]=explanation;
}
void ApplicationUsage::write(std::ostream& output, const ApplicationUsage::UsageMap& um,unsigned int widthOfOutput)
void ApplicationUsage::getFormatedString(std::string& str, const UsageMap& um,unsigned int widthOfOutput)
{
unsigned int maxNumCharsInOptions = 0;
ApplicationUsage::UsageMap::const_iterator citr;
@ -125,9 +125,8 @@ void ApplicationUsage::write(std::ostream& output, const ApplicationUsage::Usage
}
line.replace(explanationPos+offset,explanationWidth, explanation, pos, width);
if (concatinated) output << line << '-' << std::endl;
else output << line << std::endl;
if (concatinated) { str += line; str += "-\n"; }
else { str += line; str += "\n"; }
// move to the next line of output.
line.assign(fullWidth,' ');
@ -139,6 +138,13 @@ void ApplicationUsage::write(std::ostream& output, const ApplicationUsage::Usage
}
}
void ApplicationUsage::write(std::ostream& output, const ApplicationUsage::UsageMap& um,unsigned int widthOfOutput)
{
std::string str;
getFormatedString(str, um, widthOfOutput);
output << str << std::endl;
}
void ApplicationUsage::write(std::ostream& output,unsigned int widthOfOutput)
{

2
src/osgProducer/GNUmakefile
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@ -10,7 +10,7 @@ CXXFILES =\
ViewerEventHandler.cpp\
Viewer.cpp\
LIBS += -lProducer $(GL_LIBS) -losgGA -losgUtil -losgDB -losg $(OTHER_LIBS)
LIBS += -lProducer $(GL_LIBS) -losgText -losgGA -losgUtil -losgDB -losg $(OTHER_LIBS)
DEF += -DOSGPRODUCER_LIBRARY
INC += -I/usr/X11R6/include
TARGET_BASENAME = osgProducer

8
src/osgProducer/OsgCameraGroup.cpp
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@ -33,13 +33,9 @@ public:
virtual void operator()( const Producer::RenderSurface & rs)
{
if (_cameraGroup)
if (_cameraGroup->getRealizeCallback())
{
if (_cameraGroup->getRealizeCallback())
{
(*(_cameraGroup->getRealizeCallback()))(rs,_cameraGroup,_sceneHandler);
}
else if (_sceneHandler) _sceneHandler->init();
(*(_cameraGroup->getRealizeCallback()))(*_cameraGroup,*_sceneHandler,rs);
}
else if (_sceneHandler) _sceneHandler->init();
}

8
src/osgProducer/OsgSceneHandler.cpp
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@ -38,12 +38,12 @@ void OsgSceneHandler::init()
osg::notify(osg::INFO)<<" unlocked "<<this<<" init."<<std::endl;
}
void OsgSceneHandler::clear(Producer::Camera& /*camera*/)
void OsgSceneHandler::clearImplementation(Producer::Camera& /*camera*/)
{
// no-op right now as scene view manages its own cleaer.
// no-op right now as scene view manages its own clear.
}
void OsgSceneHandler::cull(Producer::Camera &cam)
void OsgSceneHandler::cullImplementation(Producer::Camera &cam)
{
pm->set(cam.getProjectionMatrix());
@ -60,7 +60,7 @@ void OsgSceneHandler::cull(Producer::Camera &cam)
SceneView::cull();
}
void OsgSceneHandler::draw(Producer::Camera &)
void OsgSceneHandler::drawImplementation(Producer::Camera &)
{
SceneView::draw();
}

257
src/osgProducer/ViewerEventHandler.cpp
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@ -1,12 +1,256 @@
#include <osgProducer/ViewerEventHandler>
#include <osgDB/WriteFile>
#include <osgText/Text>
using namespace osgProducer;
ViewerEventHandler::ViewerEventHandler(osgProducer::OsgCameraGroup* cg):
_cg(cg),
_writeNodeFileName("savedmodel.osg")
class DrawHelpCallback : public Producer::Camera::Callback
{
public:
DrawHelpCallback(ViewerEventHandler* veh):
_veh(veh),
_initialized(false)
{
}
virtual void operator()( const Producer::Camera & camera)
{
if (_veh->getDisplayHelp())
{
if (!_initialized) createText();
OsgSceneHandler* osh = _veh->getOsgCameraGroup()->getSceneHandlerList()[0].get();
int x,y;
unsigned int width,height;
camera.getProjectionRect(x,y,width,height);
_viewport->setViewport(x,y,width,height);
// should possibly update _viewport...
// Set up the Orthographic view
glMatrixMode( GL_PROJECTION );
glPushMatrix();
glLoadIdentity();
glOrtho( 0.0, 1280.0, 0.0, 1024, -1.0, 1.0 );
glPushAttrib( GL_ENABLE_BIT );
glDisable( GL_LIGHTING );
glDisable( GL_DEPTH_TEST );
glEnable( GL_BLEND );
glMatrixMode( GL_MODELVIEW );
glPushMatrix();
glLoadIdentity();
osh->getState()->pushStateSet(_stateset.get());
for(TextList::iterator ditr=_descriptionList.begin();
ditr!=_descriptionList.end();
++ditr)
{
(*ditr)->draw(*(osh->getState()));
}
for(TextList::iterator oitr=_optionList.begin();
oitr!=_optionList.end();
++oitr)
{
(*oitr)->draw(*(osh->getState()));
}
for(TextList::iterator eitr=_explanationList.begin();
eitr!=_explanationList.end();
++eitr)
{
(*eitr)->draw(*(osh->getState()));
}
osh->getState()->popStateSet();
glPopMatrix();
glMatrixMode( GL_PROJECTION );
glPopMatrix();
glMatrixMode( GL_MODELVIEW );
glPopAttrib();
}
}
void createText()
{
_stateset = new osg::StateSet;
_viewport = new osg::Viewport(0,0,1280,1024);
_stateset->setAttribute(_viewport.get());
OsgCameraGroup* ocg = _veh->getOsgCameraGroup();
if (ocg->getApplicationUsage())
{
const osg::ApplicationUsage::UsageMap& um = ocg->getApplicationUsage()->getKeyboardMouseBindings();
float maxWidthOfDisplayRegion = 1200.0f;
float bottomOfDescription = 1000.0f;
osg::Vec3 posDescription(0.0f,bottomOfDescription,0.0f);
osg::Vec4 colorDescription(1.0f,1.0f,0.0f,1.0f);
float characterSize = 20.0f;
if (!(ocg->getApplicationUsage()->getDescription()).empty())
{
osgText::Text* text = new osgText::Text;
text->setFont("fonts/arial.ttf");
text->setColor(colorDescription);
text->setCharacterSize(characterSize);
text->setPosition(posDescription);
text->setMaximumWidth(maxWidthOfDisplayRegion);
text->setAlignment(osgText::Text::BASE_LINE);
text->setText(ocg->getApplicationUsage()->getDescription());
bottomOfDescription = text->getBound().yMin()-characterSize*2.0f;
_descriptionList.push_back(text);
}
osg::Vec3 posOption(0.0f,bottomOfDescription,0.0f);
osg::Vec4 colorOption(1.0f,1.0f,0.0f,1.0f);
float maxX = 0.0f;
// create option strings.
osg::ApplicationUsage::UsageMap::const_iterator citr;
for(citr=um.begin();
citr!=um.end();
++citr)
{
osgText::Text* text = new osgText::Text;
text->setFont("fonts/arial.ttf");
text->setColor(colorOption);
text->setCharacterSize(characterSize);
text->setPosition(posOption);
text->setAlignment(osgText::Text::BASE_LINE);
text->setText(citr->first);
if (text->getBound().xMax()>maxX) maxX=text->getBound().xMax();
_optionList.push_back(text);
}
osg::Vec3 posExplanation(maxX+characterSize,bottomOfDescription,0.0f);
osg::Vec4 colorExplanation(1.0f,1.0f,0.0f,1.0f);
float maxWidth = maxWidthOfDisplayRegion-maxX;
TextList::iterator oitr;
TextList::iterator eitr;
TextList::iterator ditr;
for(citr=um.begin(), oitr=_optionList.begin();
citr!=um.end();
++citr,++oitr)
{
osgText::Text* text = new osgText::Text;
text->setFont("fonts/arial.ttf");
text->setColor(colorExplanation);
text->setCharacterSize(characterSize);
text->setPosition(posExplanation);
text->setMaximumWidth(maxWidth);
text->setAlignment(osgText::Text::BASE_LINE);
text->setText(citr->second);
if (text->getBound().xMax()>maxX) maxX=text->getBound().xMax();
// fix the position of option text to be the same height as the examplanation.
osg::Vec3 pos((*oitr)->getPosition());
(*oitr)->setPosition(osg::Vec3(pos.x(),posExplanation.y(),pos.z()));
posExplanation.y() = text->getBound().yMin()-characterSize;
_explanationList.push_back(text);
}
// compute the boundings of the all the text.
osg::BoundingBox bb;
for(ditr=_descriptionList.begin();
ditr!=_descriptionList.end();
++ditr)
{
bb.expandBy((*ditr)->getBound());
}
for(oitr=_optionList.begin();
oitr!=_optionList.end();
++oitr)
{
bb.expandBy((*oitr)->getBound());
}
for(eitr=_explanationList.begin();
eitr!=_explanationList.end();
++eitr)
{
bb.expandBy((*eitr)->getBound());
}
float totalWidth = bb.xMax()-bb.xMin();
float totalHeight = bb.yMax()-bb.yMin();
float widthMargin = (1280.0f-totalWidth)*0.5f;
float heightMargin = (1024.0f-totalHeight)*0.5f;
osg::Vec3 delta(widthMargin-bb.xMin(),heightMargin-bb.yMin(),0.0f);
// shift the text to center it.
for(ditr=_descriptionList.begin();
ditr!=_descriptionList.end();
++ditr)
{
(*ditr)->setPosition((*ditr)->getPosition()+delta);
}
for(oitr=_optionList.begin();
oitr!=_optionList.end();
++oitr)
{
(*oitr)->setPosition((*oitr)->getPosition()+delta);
}
for(eitr=_explanationList.begin();
eitr!=_explanationList.end();
++eitr)
{
(*eitr)->setPosition((*eitr)->getPosition()+delta);
}
}
_initialized = true;
}
ViewerEventHandler* _veh;
bool _initialized;
osg::ref_ptr<osg::StateSet> _stateset;
osg::ref_ptr<osg::Viewport> _viewport;
typedef std::vector< osg::ref_ptr<osgText::Text> > TextList;
TextList _descriptionList;
TextList _optionList;
TextList _explanationList;
};
ViewerEventHandler::ViewerEventHandler(OsgCameraGroup* cg):
_cg(cg),
_writeNodeFileName("savedmodel.osg"),
_displayHelp(false)
{
Producer::CameraConfig* cfg = _cg->getCameraConfig();
Producer::Camera *cam = cfg->getCamera(0);
cam->addPostDrawCallback(new DrawHelpCallback(this));
}
bool ViewerEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
@ -46,10 +290,7 @@ bool ViewerEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActio
case '/' :
case '?' :
{
if (_cg->getApplicationUsage())
{
_cg->getApplicationUsage()->write(std::cout,_cg->getApplicationUsage()->getKeyboardMouseBindings());
}
setDisplayHelp(!getDisplayHelp());
return true;
}
@ -71,4 +312,6 @@ void ViewerEventHandler::accept(osgGA::GUIEventHandlerVisitor& gehv)
void ViewerEventHandler::getUsage(osg::ApplicationUsage& usage) const
{
usage.addKeyboardMouseBinding("f","Toggle fullscreen");
usage.addKeyboardMouseBinding("?","Display help");
usage.addKeyboardMouseBinding("o","Write scene graph to file");
}