【转帖】lineweight and lwdisplay
 

lineweight and lwdisplay
lineweight and lwdisplay
hi,
oddbdatabase::setlwdisplay doesn't works in real time, we have to close the active view and reopen it to display the lineweight.
can anybody give me a solution to my problem ?
regards.
hi,
it does not work in model space (in paper -- it's ok).
i fixed it.
for now you can use somthing like this:
i tried in odamfcapp:
code:
class lwdisplayreactor : public oddbdatabasereactor
{
odrx_no_heap_operators();
odgsdevice* m_pdevice;
codamfcappdoc* m_pdoc;
static void modellweights(oduint8array& lweights, double scale)
{
lweights.clear();
lweights.reserve(24);
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 2. * scale + 0.5 );
*lweights.append() = oduint8( 6. * scale + 0.5 );
*lweights.append() = oduint8( 6. * scale + 0.5 );
*lweights.append() = oduint8( 8. * scale + 0.5 );
*lweights.append() = oduint8( 10. * scale + 0.5 );
*lweights.append() = oduint8( 10. * scale + 0.5 );
*lweights.append() = oduint8( 12. * scale + 0.5 );
*lweights.append() = oduint8( 14. * scale + 0.5 );

*lweights.append() = oduint8( 16. * scale + 0.5 );
*lweights.append() = oduint8( 18. * scale + 0.5 );
*lweights.append() = oduint8( 20. * scale + 0.5 );
*lweights.append() = oduint8( 20. * scale + 0.5 );
*lweights.append() = oduint8( 24. * scale + 0.5 );

*lweights.append() = oduint8( 26. * scale + 0.5 );
*lweights.append() = oduint8( 28. * scale + 0.5 );
*lweights.append() = oduint8( 30. * scale + 0.5 );
*lweights.append() = oduint8( 30. * scale + 0.5 );
}
public:
lwdisplayreactor()
: m_pdoc(0)
, m_pdevice(0)
{
}
void set(odgsdevice* pdevice, codamfcappdoc* pdoc);
void headersysvar_lwdisplay_changed(const oddbdatabase* pdb);
};
void lwdisplayreactor::headersysvar_lwdisplay_changed(const oddbdatabase* pdb)
{
if(m_pdevice)
{
codamfcappdoc* pdoc = m_pdoc;
odgsdevice* pdevice = m_pdevice;

odgsviewptr pview;
oduint32 i;
oduint32 numviews = pdevice->numviews();
double lwscale;
if(pdb->getlwdisplay())
{
oduint8array lweights;
modellweights(lweights, pdb->appservices()->getlwdispscale());
for(i = 0; i<numviews; ++i)
{
pview = pdevice->viewat(i);
pview->setlineweightenum(lweights.size(), lweights.getptr());
}
}
else
{
lwscale = 0.0;
for(i = 0; i<numviews; ++i)
{
pview = pdevice->viewat(i);
pview->setlineweighttodcscale(lwscale);
}
}
// force viewer repaint
pdoc->updateallviews(null);
}
}
void lwdisplayreactor::set(odgsdevice* pdevice, codamfcappdoc* pdoc)
{
if(m_pdoc)
m_pdoc->m_pdb->removereactor(this);

if(pdevice)
pdoc->m_pdb->addreactor(this);

m_pdevice = pdevice;
m_pdoc = pdoc;
}
i instantiated this class in cdwgviewer:
code:
odstaticrxobject<lwdisplayreactor> m_lwdisplayreactor;
and called
code:
m_lwdisplayreactor.set(m_pdevice, static_cast<codamfcappdoc*>(getdocument()));
in cdwgviewer::createdevice()
and called
code:
m_lwdisplayreactor.set(0, 0);
in cdwgviewer::destroydevice().
also you can just put code inside from headersysvar_lwdisplay_changed() just after switching lwdisplay settingfff">, if you do not need handle changing this setting outside your code via oddbdatabase::setlwdisplay();
last edited by dmitry a. novikov; 28th may 2007 at 11:32 amfff">.