/* OpenSceneGraph example, osgtext.
*
*  Permission is hereby granted, free of charge, to any person obtaining a copy
*  of this software and associated documentation files (the "Software"), to deal
*  in the Software without restriction, including without limitation the rights
*  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
*  copies of the Software, and to permit persons to whom the Software is
*  furnished to do so, subject to the following conditions:
*
*  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
*  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
*  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
*  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
*  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
*  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
*  THE SOFTWARE.
*/

#include <osgDB/ReadFile>

#include <osgGA/StateSetManipulator>
#include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers>
#include <osgViewer/config/SingleWindow>

#include <osg/Geode>
#include <osg/Camera>

#include <osgText/Font>
#include <osgText/Text>


// create text which sits in 3D space such as would be inserted into a normal model
osg::Group* create3DText(const osg::Vec3& center)
{
    osg::Geode* geode  = new osg::Geode;

    osgText::Text* text5 = new osgText::Text;
    text5->setFont("fonts/times.ttf");
    text5->setCharacterSize(32.0f); // medium
    text5->setPosition(center - osg::Vec3(0.0, 0.0, 0.2));
    text5->setAxisAlignment(osgText::Text::SCREEN);
    text5->setCharacterSizeMode(osgText::Text::SCREEN_COORDS);
    text5->setDrawMode(osgText::Text::TEXT | osgText::Text::BOUNDINGBOX);
    text5->setText("Resize skinny vs tall and see font size difference");
    geode->addDrawable(text5);

    osg::Group* rootNode = new osg::Group;
    rootNode->addChild(geode);

    return rootNode;
}

int main(int argc, char** argv)
{
    osg::ArgumentParser arguments(&argc, argv);

    // construct the viewer.
    osgViewer::Viewer viewer(arguments);
    viewer.setUpViewInWindow(100, 100, 800, 600);

    // prepare scene.
    osg::Vec3 center(0.0f, 0.0f, 0.0f);

    // make sure the root node is group so we can add extra nodes to it.
    osg::Group* group = new osg::Group;
    group->addChild(create3DText(center));

    // set the scene to render
    viewer.setSceneData(group);

    viewer.addEventHandler(new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()));
    viewer.addEventHandler(new osgViewer::StatsHandler());
    viewer.addEventHandler(new osgViewer::WindowSizeHandler());

    int width = 800;
    int height = 600;
    if (arguments.read("--size1"))
      ; // noop
    else if (arguments.read("--size2"))
      height = 100;
    else if (arguments.read("--size3"))
      width = 100;
    viewer.setUpViewInWindow(100, 100, width, height);

    viewer.run();

    return 0;
}