Beispiel #1
0
IvDragger::IvDragger(QtCoinViewerPtr viewer, ItemPtr pItem, float draggerScale)
{
    _selectedItem = pItem;
    _viewer = viewer;
    _scale = draggerScale;
    _penv = viewer->GetEnv();
    //_ptext = NULL;

    // set some default behavioral options
    _checkCollision = false;
    _prevtransparency = pItem->GetIvTransparency()->value;
    pItem->GetIvTransparency()->value = SoGLRenderAction::SCREEN_DOOR;

    if( !!pItem &&(pItem->GetIvRoot() != NULL)) {
        _GetBounds(pItem->GetIvRoot(), _ab);

        // make the item transparent
        SoSearchAction search;
        search.setType(SoMaterial::getClassTypeId());
        search.setInterest(SoSearchAction::ALL);
        search.apply(pItem->GetIvRoot());
        for(int i = 0; i < search.getPaths().getLength(); ++i) {
            SoPath* path = search.getPaths()[i];
            SoMaterial* pmtrl = (SoMaterial*)path->getTail();
            vtransparency.push_back(pmtrl->transparency[0]);
            pmtrl->transparency = 0.25f;
        }

        _vlinkaxes.resize(pItem->GetNumIvLinks());
        for(size_t i = 0; i < _vlinkaxes.size(); ++i) {
            _vlinkaxes[i] = _CreateAxes(i == 0 ? 1.0f : 0.25f,0.5f);
            pItem->GetIvLink(i)->addChild(_vlinkaxes[i]);
        }
    }
}
Beispiel #2
0
IvDragger::~IvDragger()
{
    ItemPtr selectedItem = GetSelectedItem();
    if( !!selectedItem &&(selectedItem->GetIvRoot() != NULL)) {
        for(size_t i = 0; i < _vlinkaxes.size(); ++i) {
            selectedItem->GetIvLink(i)->removeChild(_vlinkaxes[i]);
        }
        _vlinkaxes.clear();

        // revert transparency
        SoSearchAction search;
        search.setType(SoMaterial::getClassTypeId());
        search.setInterest(SoSearchAction::ALL);
        search.apply(selectedItem->GetIvRoot());
        for(int i = 0; i < search.getPaths().getLength(); ++i) {
            SoPath* path = search.getPaths()[i];
            SoMaterial* pmtrl = (SoMaterial*)path->getTail();
            if( i < (int)vtransparency.size() )
                pmtrl->transparency = vtransparency[i];
        }

        selectedItem->GetIvTransparency()->value = _prevtransparency;
    }
}