Changeset 11250 for OpenSceneGraph/trunk/examples/osgfont/osgfont.cpp

Timestamp:

03/18/10 18:10:48 (3 years ago)

Author:

robert

Message:

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

Files:

• OpenSceneGraph/trunk/examples/osgfont/osgfont.cpp (modified) (2 diffs)

OpenSceneGraph/trunk/examples/osgfont/osgfont.cpp

@@ -6 +6 @@
 #include <osgViewer/Viewer>
 #include <osgViewer/ViewerEventHandlers>
+#include <osgGA/StateSetManipulator>
 
 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++)
-        {
-                osg::Vec2 ul = gq.getCoords()[0 + (i * 4)]; // upperLeft
-                osg::Vec2 ll = gq.getCoords()[1 + (i * 4)]; // lowerLeft
-                osg::Vec2 lr = gq.getCoords()[2 + (i * 4)]; // lowerRight
-                osg::Vec2 ur = gq.getCoords()[3 + (i * 4)]; // upperRight
+    for(unsigned int i = 0; i < s.size(); i++)
+    {
+        osg::Vec2 ul = gq.getCoords()[0 + (i * 4)]; // upperLeft
+        osg::Vec2 ll = gq.getCoords()[1 + (i * 4)]; // lowerLeft
+        osg::Vec2 lr = gq.getCoords()[2 + (i * 4)]; // lowerRight
+        osg::Vec2 ur = gq.getCoords()[3 + (i * 4)]; // upperRight
 
-                /*
-                osg::Vec3 ul = gq.getTransformedCoords(0)[0 + (i * 4)];
-                osg::Vec3 ll = gq.getTransformedCoords(0)[1 + (i * 4)];
-                osg::Vec3 lr = gq.getTransformedCoords(0)[2 + (i * 4)];
-                osg::Vec3 ur = gq.getTransformedCoords(0)[3 + (i * 4)];
-                */
+        /*
+        osg::Vec3 ul = gq.getTransformedCoords(0)[0 + (i * 4)];
+        osg::Vec3 ll = gq.getTransformedCoords(0)[1 + (i * 4)];
+        osg::Vec3 lr = gq.getTransformedCoords(0)[2 + (i * 4)];
+        osg::Vec3 ur = gq.getTransformedCoords(0)[3 + (i * 4)];
+        */
 
-                osg::notify(osg::NOTICE)
-                        << "'" << static_cast<char>(s[i]) << "':"
-                        << " width(" << lr.x() - ll.x() << ")"
-                        << " height(" << ul.y() - ll.y() << ")" << std::endl << "\t"
-                        << "ul(" << ul << "), "
-                        << "ll(" << ll << "), "
-                        << "lr(" << lr << "), "
-                        << "ur(" << ur << ")"
-                        << std::endl
-                ;
-        }
+        osg::notify(osg::NOTICE)
+            << "'" << static_cast<char>(s[i]) << "':"
+            << " width(" << lr.x() - ll.x() << ")"
+            << " height(" << ul.y() - ll.y() << ")" << std::endl << "\t"
+            << "ul(" << ul << "), "
+            << "ll(" << ll << "), "
+            << "lr(" << lr << "), "
+            << "ur(" << ur << ")"
+            << std::endl
+        ;
+    }
 }
 
 osg::Camera* createOrthoCamera(double width, double height)
 {
-        osg::Camera* camera = new osg::Camera();
+    osg::Camera* camera = new osg::Camera();
 
-        camera->getOrCreateStateSet()->setMode(
-                GL_LIGHTING,
-                osg::StateAttribute::PROTECTED | osg::StateAttribute::OFF
-        );
+    camera->getOrCreateStateSet()->setMode(
+        GL_LIGHTING,
+        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->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
-        camera->setViewMatrix(osg::Matrix::identity());
-        camera->setClearMask(GL_DEPTH_BUFFER_BIT);
-        camera->setRenderOrder(osg::Camera::POST_RENDER);
+    camera->setProjectionMatrix(m);
+    camera->setReferenceFrame(osg::Transform::ABSOLUTE_RF);
+    camera->setViewMatrix(osg::Matrix::identity());
+    camera->setClearMask(GL_DEPTH_BUFFER_BIT);
+    camera->setRenderOrder(osg::Camera::POST_RENDER);
 
-        return camera;
+    return camera;
 }
 
 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::Font* font  = osgText::readFontFile(f);
+    osgText::Text* label = new osgText::Text();
+    osgText::Font* font  = osgText::readFontFile(f);
 
-        label->setFont(font);
-        label->setCharacterSize(size);
-        label->setFontResolution(size, size);
-        label->setColor(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
-        label->setPosition(pos);
-        label->setAlignment(osgText::Text::LEFT_BOTTOM);
+    label->setFont(font);
+    label->setCharacterSize(size);
+    label->setFontResolution(size, size);
+    label->setColor(osg::Vec4(1.0f, 1.0f, 1.0f, 1.0f));
+    label->setPosition(pos);
+    label->setAlignment(osgText::Text::LEFT_BOTTOM);
 
-        // It seems to be important we do this last to get best results?
-        label->setText(l);
+    // It seems to be important we do this last to get best results?
+    label->setText(l);
 
-        textInfo(label);
+    textInfo(label);
 
-        pos.y() += size + 10.0f;
+    pos.y() += size + 10.0f;
 
-        return label;
+    return label;
 }
 
@@ -92 +93 @@
 int main(int argc, char** argv)
 {
-        osgViewer::Viewer   viewer;
-        osg::ArgumentParser args(&argc, argv);
+    osgViewer::Viewer   viewer;
+    osg::ArgumentParser args(&argc, argv);
 
-        // Make sure we have the minimum args...
-        if(argc <= 2)
-        {
-                osg::notify(osg::FATAL) << "usage: " << args[0] << " fontfile size1 [size2 ...]" << std::endl;
+    // Make sure we have the minimum args...
+    if(argc <= 2)
+    {
+        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();
-        osg::Camera* camera = createOrthoCamera(1280.0f, 1024.0f);
+    viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
+    viewer.addEventHandler(new osgViewer::StatsHandler());
+    viewer.addEventHandler(new osgViewer::WindowSizeHandler());
 
-        // Create the list of desired sizes.
-        Sizes sizes;
+    osg::Group*  group  = new osg::Group();
+    osg::Camera* camera = createOrthoCamera(1280.0f, 1024.0f);
 
-        for(int i = 2; i < argc; i++)
-        {
-                if(!args.isNumber(i)) continue;
+    // Create the list of desired sizes.
+    Sizes sizes;
 
-                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.
-        for(Sizes::const_iterator i = sizes.begin(); i != sizes.end(); i++)
-        {
-                std::stringstream ss;
+    osg::Geode* geode = new osg::Geode();
 
-                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();
 }