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IgIVView.cc

Go to the documentation of this file.

//<<<<<< INCLUDES                                                       >>>>>>

#include "Iguana/GLBrowsers/interface/IgIVView.h"
#include "Iguana/Framework/interface/IgArgsElement.h"
#include "Iguana/Framework/interface/IgBrowserDB.h"
#include "Iguana/Framework/interface/IgDocumentDataRoot.h"
#include "Iguana/Framework/interface/IgSelectionService.h"
#include "Iguana/GLBrowsers/interface/Ig3DBaseWindow.h"
#include "Iguana/GLModels/interface/IgSoTwig.h"
#include "Iguana/GLModels/interface/Ig3DBaseRep.h"
#include "Iguana/GLModels/interface/Ig3DModel.h"
#include "Iguana/Studio/interface/IgDocumentData.h"
#include "Iguana/Studio/interface/IgFileFetcher.h"
#include "Iguana/Studio/interface/IgModelManager.h"
#include "Iguana/Studio/interface/IgPage.h"
#include "Iguana/Studio/interface/IgQtAppWindowService.h"
#include "Iguana/Studio/interface/IgQWidgetStackSite.h"
#include "Iguana/Studio/interface/IgViewDB.h"
#include <Inventor/SoInput.h>
#include <Inventor/nodes/SoGroup.h>
#include <qfiledialog.h>
#include <qmainwindow.h>
#include <qmessagebox.h>
#include <qstring.h>
#undef emit
#include <classlib/utils/Log.h>
#include <iostream>

//<<<<<< PRIVATE DEFINES                                                >>>>>>

lat::logflag LFivview = { 0, "ivview", true, -1 };

//<<<<<< PRIVATE CONSTANTS                                              >>>>>>
//<<<<<< PRIVATE TYPES                                                  >>>>>>
//<<<<<< PRIVATE VARIABLE DEFINITIONS                                   >>>>>>
//<<<<<< PUBLIC VARIABLE DEFINITIONS                                    >>>>>>
//<<<<<< CLASS STRUCTURE INITIALIZATION                                 >>>>>>
//<<<<<< PRIVATE FUNCTION DEFINITIONS                                   >>>>>>
//<<<<<< PUBLIC FUNCTION DEFINITIONS                                    >>>>>>
//<<<<<< MEMBER FUNCTION DEFINITIONS                                    >>>>>>

IgIVView::IgIVView (IgPage *page)
    :IgView (page),
     m_state (0),
     m_browser (0),
     m_bt (0)
{
    QString filename;
    QString workingDirectory ("./");
    QWidget *mainWindow = dynamic_cast<QMainWindow *> (IgQtAppWindowService::get (page->state ())->mainWindow ());
    
    IgArgsElement *args = IgArgsElement::get (page->state ());
    std::string fname;
    std::vector<std::string> arg;
    arg.push_back ("--ivfile");
    arg.push_back ("-iv");
    
    if (args->find (arg, fname, true)) filename = fname.c_str ();
    
    if (filename.isEmpty ())
        filename = QFileDialog::getOpenFileName (workingDirectory,
                                                 "Open Inventor Scenegraph (*.iv)",
                                                 mainWindow,
                                                 QString::null,
                                                 "Select Scenegraph to View");
    
    if (! filename.isEmpty ())
    {
        IgDocumentDataManager *dm = IgDocumentDataManager::get (page->state ());
        IgState *s =  dm->lookup (0, filename.latin1 ());
        
        if (s)
        {
            // Do not open the same file gain 
            IgDocumentDataRoot::currentRoot (filename.latin1 ());
            return;
        }
        
        // Read in the file
        IgFileFetcher *fetcher = IgFileFetcher::get (page->state ());
        if (! fetcher)
            fetcher = new IgFileFetcher (page->state ());
        
        std::string local = fetcher->fetch (filename.ascii ());
        if (local.empty ())
        {
            LOG (0, trace, LFivview, "SoReader: " << filename.ascii ()
                 << ": error: failed to access file.\n");
            QMessageBox::warning (mainWindow,
                                  "File open error", 
                                  "\""+ filename + "\" file not found.", "Ok");
            return;
        }
        
        SoNode      *node = 0;
        SoInput     file;
        if (! file.openFile (local.c_str ()) 
            || ! SoDB::read (&file, node) 
            || ! node)
        {
            LOG (0, trace, LFivview, "SoReader: " << filename.ascii ()
                 << ": error: failed to read\n");
            QMessageBox::warning (mainWindow,
                                  "File Access Error", 
                                  "Can not open file \""+ filename + "\" for reading.", "Ok");
            return;
        }
        IgDocumentDataRoot::currentRoot (filename.latin1 ());
        
        // Construct twigs from the node tree.  This always produces a
        // root that contains magic stuff to go into the browser's root
        // node, i.e. global magic clip planes etc.
        IgSoTwig    *twigs = IgSoTwig::buildFrom (node);
        dump (0, twigs);
        std::cout << std::flush;
        
        IgDocumentData::get (page->state ())->root (dynamic_cast<IgSoTwig*>(twigs->child(0)));
     
        m_state = new IgState (page->state ());
        new IgSelectionService (m_state);
        
        Ig3DModel *model = 0;
        IgModelManager::get (m_state)->lookup (m_state, &model);
        
        model->attachPoint ()->magic (twigs->magic ());
        model->attachPoint ()->node (twigs->node ());
        
        m_browser = dynamic_cast<Ig3DBaseWindow *> (IgViewDB::get ()->create ("3D Window", page ));
        
        IgQWidgetStackSite *stackArea = dynamic_cast<IgQWidgetStackSite *> (page->stackArea ());
        m_bt = IgBrowserDB::get()->create ("Twig", m_state,
                                           stackArea->hostWithName (filename.latin1 ()));
        m_bt->browse (twigs->child (0));
    } 
    else 
    {
        QMessageBox::warning (mainWindow,
                              "No file selected", 
                              "No OpenInventor file has been selected", "Ok");
    }
}

IgIVView::~IgIVView (void)
{
    if (m_browser)
        delete m_browser;
    if (m_bt)
        delete m_bt;
    if (m_state)
        delete m_state;
}

void
IgIVView::dump (unsigned level, IgTwig *twig)
{
    ASSERT (twig);
    LOG (0, trace, LFivview, std::string(level, ' ') << "Twig " << twig->name () 
         << (twig->selfVisible () ? " visible" : " invisible")
         << (twig->cascade () ? " cascade; " : " no cascade; ")
         << ((IgSoTwig *) twig)->node ()->getNumChildren () 
         << " OIV children\n" );
    for (unsigned n = 0; n < twig->children (); ++n)
        dump (level + 2, twig->child (n));
}

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