FGFS-4.1/OpenSceneGraph
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Added StateSet event handler to osgfont and osgtext to aid with debugging

Browse Source
This commit is contained in:
Robert Osfield 2010-03-18 17:10:48 +00:00
parent 1590f6be3b
commit c3b7a04cf1
2 changed files with 89 additions and 84 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

171
examples/osgfont/osgfont.cpp
View File

@ -5,137 +5,140 @@
#include <osg/Geode> #include <osg/Geode>
#include <osgViewer/Viewer> #include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers> #include <osgViewer/ViewerEventHandlers>
#include <osgGA/StateSetManipulator>
void textInfo(osgText::Text* text) void textInfo(osgText::Text* text)
{ {
const osgText::Text::TextureGlyphQuadMap& tgqm = text->getTextureGlyphQuadMap(); const osgText::Text::TextureGlyphQuadMap& tgqm = text->getTextureGlyphQuadMap();
const osgText::Text::TextureGlyphQuadMap::const_iterator tgqmi = tgqm.begin(); const osgText::Text::TextureGlyphQuadMap::const_iterator tgqmi = tgqm.begin();
const osgText::Text::GlyphQuads& gq = tgqmi->second; const osgText::Text::GlyphQuads& gq = tgqmi->second;
osgText::String& s = text->getText(); osgText::String& s = text->getText();
for(unsigned int i = 0; i < s.size(); i++) for(unsigned int i = 0; i < s.size(); i++)
{ {
osg::Vec2 ul = gq.getCoords()[0 + (i * 4)]; // upperLeft osg::Vec2 ul = gq.getCoords()[0 + (i * 4)]; // upperLeft
osg::Vec2 ll = gq.getCoords()[1 + (i * 4)]; // lowerLeft osg::Vec2 ll = gq.getCoords()[1 + (i * 4)]; // lowerLeft
osg::Vec2 lr = gq.getCoords()[2 + (i * 4)]; // lowerRight osg::Vec2 lr = gq.getCoords()[2 + (i * 4)]; // lowerRight
osg::Vec2 ur = gq.getCoords()[3 + (i * 4)]; // upperRight osg::Vec2 ur = gq.getCoords()[3 + (i * 4)]; // upperRight
/* /*
osg::Vec3 ul = gq.getTransformedCoords(0)[0 + (i * 4)]; osg::Vec3 ul = gq.getTransformedCoords(0)[0 + (i * 4)];
osg::Vec3 ll = gq.getTransformedCoords(0)[1 + (i * 4)]; osg::Vec3 ll = gq.getTransformedCoords(0)[1 + (i * 4)];
osg::Vec3 lr = gq.getTransformedCoords(0)[2 + (i * 4)]; osg::Vec3 lr = gq.getTransformedCoords(0)[2 + (i * 4)];
osg::Vec3 ur = gq.getTransformedCoords(0)[3 + (i * 4)]; osg::Vec3 ur = gq.getTransformedCoords(0)[3 + (i * 4)];
*/ */
osg::notify(osg::NOTICE) osg::notify(osg::NOTICE)
<< "'" << static_cast<char>(s[i]) << "':" << "'" << static_cast<char>(s[i]) << "':"
<< " width(" << lr.x() - ll.x() << ")" << " width(" << lr.x() - ll.x() << ")"
<< " height(" << ul.y() - ll.y() << ")" << std::endl << "\t" << " height(" << ul.y() - ll.y() << ")" << std::endl << "\t"
<< "ul(" << ul << "), " << "ul(" << ul << "), "
<< "ll(" << ll << "), " << "ll(" << ll << "), "
<< "lr(" << lr << "), " << "lr(" << lr << "), "
<< "ur(" << ur << ")" << "ur(" << ur << ")"
<< std::endl << std::endl
; ;
} }
} }
osg::Camera* createOrthoCamera(double width, double height) osg::Camera* createOrthoCamera(double width, double height)
{ {
osg::Camera* camera = new osg::Camera(); osg::Camera* camera = new osg::Camera();
camera->getOrCreateStateSet()->setMode( camera->getOrCreateStateSet()->setMode(
GL_LIGHTING, GL_LIGHTING,
osg::StateAttribute::PROTECTED | osg::StateAttribute::OFF osg::StateAttribute::PROTECTED | osg::StateAttribute::OFF
); );
osg::Matrix m = osg::Matrix::ortho2D(0.0f, width, 0.0f, height); osg::Matrix m = osg::Matrix::ortho2D(0.0f, width, 0.0f, height);
camera->setProjectionMatrix(m); camera->setProjectionMatrix(m);
camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF); camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
camera->setViewMatrix(osg::Matrix::identity()); camera->setViewMatrix(osg::Matrix::identity());
camera->setClearMask(GL_DEPTH_BUFFER_BIT); camera->setClearMask(GL_DEPTH_BUFFER_BIT);
camera->setRenderOrder(osg::Camera::POST_RENDER); camera->setRenderOrder(osg::Camera::POST_RENDER);
return camera; return camera;
} }
osgText::Text* createLabel(const std::string& l, const char* f, unsigned int size) osgText::Text* createLabel(const std::string& l, const char* f, unsigned int size)
{ {
static osg::Vec3 pos(10.0f, 10.0f, 0.0f); static osg::Vec3 pos(10.0f, 10.0f, 0.0f);
osgText::Text* label = new osgText::Text(); osgText::Text* label = new osgText::Text();
osgText::Font* font = osgText::readFontFile(f); osgText::Font* font = osgText::readFontFile(f);
label->setFont(font); label->setFont(font);
label->setCharacterSize(size); label->setCharacterSize(size);
label->setFontResolution(size, size); label->setFontResolution(size, size);
label->setColor(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f)); label->setColor(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
label->setPosition(pos); label->setPosition(pos);
label->setAlignment(osgText::Text::LEFT_BOTTOM); label->setAlignment(osgText::Text::LEFT_BOTTOM);
// It seems to be important we do this last to get best results? // It seems to be important we do this last to get best results?
label->setText(l); label->setText(l);
textInfo(label); textInfo(label);
pos.y() += size + 10.0f; pos.y() += size + 10.0f;
return label; return label;
} }
typedef std::list<unsigned int> Sizes; typedef std::list<unsigned int> Sizes;
int main(int argc, char** argv) int main(int argc, char** argv)
{ {
osgViewer::Viewer viewer; osgViewer::Viewer viewer;
osg::ArgumentParser args(&argc, argv); osg::ArgumentParser args(&argc, argv);
// Make sure we have the minimum args... // Make sure we have the minimum args...
if(argc <= 2) if(argc <= 2)
{ {
osg::notify(osg::FATAL) << "usage: " << args[0] << " fontfile size1 [size2 ...]" << std::endl; osg::notify(osg::FATAL) << "usage: " << args[0] << " fontfile size1 [size2 ...]" << std::endl;
return 1; return 1;
} }
viewer.addEventHandler(new osgViewer::StatsHandler());
viewer.addEventHandler(new osgViewer::WindowSizeHandler());
osg::Group* group = new osg::Group(); viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
osg::Camera* camera = createOrthoCamera(1280.0f, 1024.0f); viewer.addEventHandler(new osgViewer::StatsHandler());
viewer.addEventHandler(new osgViewer::WindowSizeHandler());
// Create the list of desired sizes. osg::Group* group = new osg::Group();
Sizes sizes; osg::Camera* camera = createOrthoCamera(1280.0f, 1024.0f);
for(int i = 2; i < argc; i++) // Create the list of desired sizes.
{ Sizes sizes;
if(!args.isNumber(i)) continue;
sizes.push_back(std::atoi(args[i])); for(int i = 2; i < argc; i++)
} {
if(!args.isNumber(i)) continue;
osg::Geode* geode = new osg::Geode(); sizes.push_back(std::atoi(args[i]));
}
// Add all of our osgText drawables. osg::Geode* geode = new osg::Geode();
for(Sizes::const_iterator i = sizes.begin(); i != sizes.end(); i++)
{
std::stringstream ss;
ss << *i << " 1234567890 abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ"; // Add all of our osgText drawables.
for(Sizes::const_iterator i = sizes.begin(); i != sizes.end(); i++)
{
std::stringstream ss;
geode->addDrawable(createLabel(ss.str(), args[1], *i)); ss << *i << " 1234567890 abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ";
}
camera->addChild(geode); geode->addDrawable(createLabel(ss.str(), args[1], *i));
}
group->addChild(camera); camera->addChild(geode);
viewer.setSceneData(group); group->addChild(camera);
return viewer.run(); viewer.setSceneData(group);
return viewer.run();
} }

2
examples/osgtext/osgtext.cpp
View File

@ -22,6 +22,7 @@
#include <osgDB/WriteFile> #include <osgDB/WriteFile>
#include <osgDB/Registry> #include <osgDB/Registry>
#include <osgGA/StateSetManipulator>
#include <osgViewer/Viewer> #include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers> #include <osgViewer/ViewerEventHandlers>
@ -701,6 +702,7 @@ int main(int argc, char** argv)
osgDB::writeNodeFile(*viewer.getSceneData(),"text.osg"); osgDB::writeNodeFile(*viewer.getSceneData(),"text.osg");
#endif #endif
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
viewer.addEventHandler(new osgViewer::StatsHandler()); viewer.addEventHandler(new osgViewer::StatsHandler());
viewer.run(); viewer.run();