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#include <FL/Fl.H>
#include "Fl_OSG.h"
#include "i18n.h"
#include <cmath>
#include <osg/LineWidth>
#include <osgGA/TrackballManipulator>
#include <osgViewer/ViewerEventHandlers>
#include <osgDB/Registry>
#include <osg/MatrixTransform>
#define HUD_SCALE_FACTOR 1.5
Fl_OSG::Fl_OSG( int x, int y, int w, int h, const char *label )
: AdapterWidget(x,y,w,h,label) {
getCamera()->setViewport( new osg::Viewport( 0, 0, w, h ) );
getCamera()->setProjectionMatrixAsPerspective( 30.0f, static_cast<double>(w)/static_cast<double>(h), 1.0f, 10000.0f );
getCamera()->setGraphicsContext( getGraphicsWindow() );
setThreadingModel( osgViewer::Viewer::SingleThreaded );
hud = new osg::Camera;
hud->setProjectionMatrix( osg::Matrix::ortho( 0, w*HUD_SCALE_FACTOR, 0, h*HUD_SCALE_FACTOR, 0, -1 ) );
hud->setReferenceFrame( osg::Transform::ABSOLUTE_RF );
hud->setViewMatrix( osg::Matrix::identity() );
hud->setClearMask( GL_DEPTH_BUFFER_BIT );
hud->setRenderOrder( osg::Camera::POST_RENDER );
hud->setAllowEventFocus( false );
setCameraManipulator( new osgGA::TrackballManipulator );
addEventHandler( new osgViewer::StatsHandler );
setSceneData( new osg::Node );
}
void Fl_OSG::draw() {
frame();
}
static
osg::Geometry *drawStar( osg::Vec3 position, int xincr, double size, double depth, osg::Vec4 color ) {
osg::Geometry* geom = new osg::Geometry;
osg::Vec3Array* vertices = new osg::Vec3Array;
osg::DrawElementsUByte *de = new osg::DrawElementsUByte( GL_TRIANGLES );
osg::Vec3 delta( 110+xincr, 7, 0 );
double innerScale = cos( 2.*M_PI / 5. ) / cos( M_PI / 5. );
double dAngle = M_PI / 5.;
for ( int i = 0; i < 5; ++i ) {
double angle = (2. * i * M_PI / 5.) + (M_PI / 2.);
vertices->push_back( position+delta+osg::Vec3( cos( angle )*size, sin( angle )*size, depth ) );
vertices->push_back( position+delta+osg::Vec3( cos( angle+dAngle )*size*innerScale, sin( angle+dAngle )*size*innerScale, depth ) );
de->push_back( (2*i + 9) % 10 );
de->push_back( 2*i );
de->push_back( 2*i + 1 );
}
geom->setVertexArray(vertices);
de->push_back(1); de->push_back(3); de->push_back(5);
de->push_back(5); de->push_back(7); de->push_back(9);
de->push_back(1); de->push_back(5); de->push_back(9);
osg::Vec3Array* normals = new osg::Vec3Array;
normals->push_back(osg::Vec3(0.0f,0.0f,1.0f));
geom->setNormalArray(normals);
geom->setNormalBinding(osg::Geometry::BIND_OVERALL);
osg::Vec4Array* colors = new osg::Vec4Array;
colors->push_back(color);
geom->setColorArray(colors);
geom->setColorBinding(osg::Geometry::BIND_OVERALL);
osg::StateSet* stateset = geom->getOrCreateStateSet();
stateset->setMode(GL_BLEND,osg::StateAttribute::ON);
stateset->setRenderingHint(osg::StateSet::TRANSPARENT_BIN);
geom->addPrimitiveSet(de);
return geom;
}
static
osg::Geometry *drawUnrated( osg::Vec3 position, int xincr ) {
osg::Geometry* geom = new osg::Geometry;
osg::Vec3Array* vertices = new osg::Vec3Array;
osg::Vec3 delta( 110+xincr, 7, 0 );
vertices->push_back(osg::Vec3(position.x()+100+xincr,position.y()-2,0));
vertices->push_back(osg::Vec3(position.x()+225+xincr,position.y()+14,0));
geom->setVertexArray(vertices);
osg::Vec3Array* normals = new osg::Vec3Array;
normals->push_back(osg::Vec3(0.0f,0.0f,1.0f));
geom->setNormalArray(normals);
geom->setNormalBinding(osg::Geometry::BIND_OVERALL);
osg::Vec4Array* colors = new osg::Vec4Array;
colors->push_back(osg::Vec4(1.,0.,0.,7.));
geom->setColorArray(colors);
geom->setColorBinding(osg::Geometry::BIND_OVERALL);
osg::StateSet* stateset = geom->getOrCreateStateSet();
stateset->setAttributeAndModes( new osg::LineWidth(1) );
geom->addPrimitiveSet(new osg::DrawArrays(GL_LINES,0,2));
//geom->setEventCallback(
return geom;
}
static
void addBar( osg::Geode *geode, osg::Vec3 &position, int xincr, int val ) {
for ( int i = 0; i < 5; ++i ) {
geode->addDrawable( drawStar( position+osg::Vec3(25*i,0,0), xincr, 12, -0.1, osg::Vec4( 1., 1., .8, 0.2 ) ) );
}
for ( int i=0; i < val; ++i ) {
geode->addDrawable( drawStar( position+osg::Vec3(25*i,0,0), xincr, 9, 0, osg::Vec4( 1., 1., 0., 0.7 ) ) );
}
if (val < 0)
geode->addDrawable( drawUnrated( position, xincr ) );
}
void Fl_OSG::set_fg_root( const char *fgr ) {
font = SGPath( fgr );
font.append("Fonts/LiberationFonts/LiberationSans-Regular.ttf");
}
osgText::Text *Fl_OSG::drawText( const char *t, osg::Vec3 position ) {
osgText::Text* text = new osgText::Text;
text->setFont(font.str());
text->setPosition(position);
text->setCharacterSize( 20.0 );
text->setText(t);
return text;
}
void Fl_OSG::drawRating( osg::Geode *geode, osg::Vec3 position, const char *t, int rating, int xincr ) {
geode->addDrawable( drawText( t, position ) );
addBar( geode, position, xincr, ( rating >= 0 && rating <= 5 ) ? rating : -1 );
}
void Fl_OSG::set_model( osg::Node *m, int fdm, int systems, int cockpit, int model ) {
osg::ref_ptr<osg::Group> root = new osg::Group;
root->addChild( m );
thumbnailTransform.release();
hud->removeChildren( 0, hud->getNumChildren() );
drawRatings( root, fdm, systems, cockpit, model );
}
void Fl_OSG::setThumbnailTransform(int w, int h) {
if (!thumbnailTransform.valid())
return;
float hudAspect = float(w) / float(h);
osg::Vec2 origin(0,0);
float scale;
if (imgAspect > hudAspect) {
scale = 0.75 * w*HUD_SCALE_FACTOR / imgAspect;
} else {
scale = 0.75 * h*HUD_SCALE_FACTOR;
}
if (scale > 1000.0)
scale = 1000.0;
origin.x() = (w*HUD_SCALE_FACTOR - imgAspect*scale) / 2.0;
origin.y() = (h*HUD_SCALE_FACTOR - scale) / 2.0;
thumbnailTransform->setMatrix(osg::Matrix::scale(scale, scale, 1.0) * osg::Matrix::translate(osg::Vec3(origin,0.0)));
}
void Fl_OSG::set_thumbnail( const char *path, int fdm, int systems, int cockpit, int model ) {
hud->removeChildren( 0, hud->getNumChildren() );
osg::ref_ptr<osg::Group> root = new osg::Group;
#if 1
osgDB::ReaderWriter::ReadResult rr = osgDB::Registry::instance()->readImage( path, 0 );
if (rr.validImage()) {
osg::ref_ptr<osg::Texture2D> tex = new osg::Texture2D;
tex->setImage( rr.getImage() );
tex->setResizeNonPowerOfTwoHint( false );
tex->setFilter( osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR );
tex->setFilter( osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR );
tex->setWrap( osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_EDGE );
tex->setWrap( osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_EDGE );
imgAspect = float(rr.getImage()->s()) / float(rr.getImage()->t());
thumbnailTransform = new osg::MatrixTransform;
osg::Geometry *geom = osg::createTexturedQuadGeometry( osg::Vec3(0,0,0), osg::Vec3(imgAspect,0,0), osg::Vec3(0,1,0) );
osg::Geode *g = new osg::Geode;
g->addDrawable(geom);
osg::StateSet *ss = g->getOrCreateStateSet();
ss->setTextureAttributeAndModes( 0, tex, osg::StateAttribute::ON );
ss->setTextureAttributeAndModes( 0, new osg::TexEnv(osg::TexEnv::DECAL), osg::StateAttribute::ON );
thumbnailTransform->addChild(g);
setThumbnailTransform(w(), h());
hud->addChild(thumbnailTransform);
}
#endif
drawRatings( root, fdm, systems, cockpit, model, path );
}
void Fl_OSG::drawRatings( osg::Group *root, int fdm, int systems, int cockpit, int model, const char *path ) {
osg::Geode *geode = new osg::Geode;
osg::StateSet* stateset = geode->getOrCreateStateSet();
stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
osg::Vec3 position(30.0f,10.0f,0.0f);
osg::Vec3 deltaY(0.0f,22.0f,0.0f);
osg::Vec3 deltaX(20.0f,0.0f,0.0f);
int xincr = atoi( _("RatingPos") );
bool hasRating = false;
if (model >= 0 && model <= 5 ) {
drawRating( geode, position, _("Model : "), model, xincr );
position += deltaY;
hasRating = true;
}
if (cockpit >= 0 && cockpit <= 5 ) {
drawRating( geode, position, _("Cockpit : "), cockpit, xincr );
position += deltaY;
hasRating = true;
}
if (systems >= 0 && systems <= 5 ) {
drawRating( geode, position, _("Systems : "), systems, xincr );
position += deltaY;
hasRating = true;
}
if (fdm >= 0 && fdm <= 5 ) {
drawRating( geode, position, _("FDM : "), fdm, xincr );
position += deltaY;
hasRating = true;
}
position -= deltaX;
if (hasRating) {
geode->addDrawable( drawText( _("Rating"), position ) );
} else {
geode->addDrawable( drawText( _("No Rating"), position ) );
}
position += deltaY;
hud->addChild( geode );
root->addChild( hud );
setSceneData( root );
}
void Fl_OSG::resize(int x, int y, int w, int h) {
setThumbnailTransform(w, h);
hud->setProjectionMatrix( osg::Matrix::ortho( 0, w*HUD_SCALE_FACTOR, 0, h*HUD_SCALE_FACTOR, 0, -1 ) );
AdapterWidget::resize(x, y, w, h);
}
void idle_cb()
{
Fl::redraw();
}
AdapterWidget::AdapterWidget( int x, int y, int w, int h, const char *label )
: Fl_Gl_Window(x, y, w, h, label ) {
_gw = new osgViewer::GraphicsWindowEmbedded( x, y, w, h );
}
void AdapterWidget::resize(int x, int y, int w, int h) {
_gw->getEventQueue()->windowResize( x, y, w, h );
_gw->resized( x, y, w, h );
Fl_Gl_Window::resize( x, y, w, h );
}
int AdapterWidget::handle(int event) {
switch(event) {
case FL_PUSH:
_gw->getEventQueue()->mouseButtonPress(Fl::event_x(), Fl::event_y(), Fl::event_button());
return 1;
case FL_MOVE:
case FL_DRAG:
_gw->getEventQueue()->mouseMotion(Fl::event_x(), Fl::event_y());
return 1;
case FL_RELEASE:
_gw->getEventQueue()->mouseButtonRelease(Fl::event_x(), Fl::event_y(), Fl::event_button());
return 1;
case FL_KEYDOWN:
_gw->getEventQueue()->keyPress((osgGA::GUIEventAdapter::KeySymbol)Fl::event_key());
return 1;
case FL_KEYUP:
_gw->getEventQueue()->keyRelease((osgGA::GUIEventAdapter::KeySymbol)Fl::event_key());
return 1;
default:
// pass other events to the base class
return Fl_Gl_Window::handle(event);
}
}
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