/*
* Single-threaded application that interleaves client servicing with taking
* pictures from the camera. This way, we do not update the framebuffer
* while an encoding is working on it too (banding, and image artifacts).
*/
int main(int argc,char** argv)
{
long usec;
rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,WIDTH,HEIGHT,8,3,BPP);
if(!server)
return 0;
server->desktopName = "Live Video Feed Example";
server->frameBuffer=(char*)malloc(WIDTH*HEIGHT*BPP);
server->alwaysShared=(1==1);
/* Initialize the server */
rfbInitServer(server);
/* Loop, processing clients and taking pictures */
while (rfbIsActive(server)) {
if (TimeToTakePicture())
if (TakePicture((unsigned char *)server->frameBuffer))
rfbMarkRectAsModified(server,0,0,WIDTH,HEIGHT);
usec = server->deferUpdateTime*1000;
rfbProcessEvents(server,usec);
}
return(0);
}
void SectionViewWidget::SetSection(SailSection *pSection)
{
m_pSailSection = pSection;
Spline::s_bChanged = false;
m_StackPos = -1;
m_PicStack.clear();
TakePicture();
}
void SectionViewWidget::Initialize(QSail *pSail, SailSection *pSection)
{
m_pSail = pSail;
m_pSailSection = pSection;
Spline::s_bChanged = false;
m_StackPos = -1;
m_PicStack.clear();
TakePicture();
OnResetScale();
}
void SectionViewWidget::OnRemoveCtrlPt()
{
//Removes a point in the spline
if(!m_pSail->IsNURBSSail()) return;
if(!m_pSailSection || !m_pSailSection->IsNURBSSection()) return;
SailDlg *pSailDlg = (SailDlg*)m_pSailDlg;
CVector Real = MousetoReal(m_PointDown);
int n = m_pSailSection->IsPoint(Real, m_Scale/m_RefScale);
if (n>=0)
{
for(int ifr=0; ifr<m_pSail->m_oaSection.size(); ifr++)
{
SailSection *pSailSection = m_pSail->m_oaSection.at(ifr);
pSailSection->RemovePoint(n);
}
}
//Check the degree
NURBSSail *pNSail = (NURBSSail*)m_pSail;
if(pNSail->m_SplineSurface.m_ivDegree >= m_pSailSection->m_CtrlPoint.size())
{
//reduce the degree
pNSail->m_SplineSurface.m_ivDegree = m_pSailSection->m_CtrlPoint.size()-1;
pSailDlg->m_pctrlNXDegree->SetValue(pNSail->m_SplineSurface.m_ivDegree);
m_pSail->SplineSurface();
QString strong = tr("The degree has been reduced to be less than the number of points");
QMessageBox::warning(window(), tr("Warning"), strong);
}
else
{
m_pSail->SplineSurface();
}
TakePicture();
pSailDlg->FillPointTable();
}
void SectionViewWidget::OnInsertCtrlPt()
{
//Inserts a point in all sections, to keep the same number of points in each
if(!m_pSail->IsNURBSSail()) return;
if(!m_pSailSection || !m_pSailSection->IsNURBSSection()) return;
CVector Real = MousetoReal(m_PointDown);
int pos = m_pSailSection->InsertPoint(Real, 1);
for(int ifr=0; ifr<m_pSail->m_oaSection.size(); ifr++)
{
SailSection *pSailSection = m_pSail->m_oaSection.at(ifr);
if(pSailSection != m_pSailSection) pSailSection->InsertPoint(pos);
}
m_pSail->SplineSurface();
TakePicture();
SailDlg *pSailDlg = (SailDlg*)m_pSailDlg;
pSailDlg->FillPointTable();
pSailDlg->UpdateView();
}
void SectionViewWidget::mouseReleaseEvent(QMouseEvent *event)
{
m_bTrans = false;
QPoint point = event->pos();
QRect CltRect = rect();
if(m_bZoomIn && CltRect.contains(point))
{
m_ZoomRect.setBottomRight(point);
QRect ZRect = m_ZoomRect.normalized();
if(!ZRect.isEmpty())
{
m_ZoomRect = ZRect;
double ZoomFactor = qMin((double)CltRect.width() / (double)m_ZoomRect.width() ,
(double)CltRect.height() / (double)m_ZoomRect.height());
double newScale = qMin(ZoomFactor*m_Scale, 32.0*m_RefScale);
ZoomFactor = qMin(ZoomFactor, newScale/m_Scale);
m_Scale = ZoomFactor*m_Scale;
int a = (int)((CltRect.right() + CltRect.left())/2);
int b = (int)((CltRect.top() + CltRect.bottom())/2);
int aZoom = (int)((m_ZoomRect.right() + m_ZoomRect.left())/2);
int bZoom = (int)((m_ZoomRect.top() + m_ZoomRect.bottom())/2);
//translate view
m_ptOffset.rx() += (a - aZoom);
m_ptOffset.ry() += (b - bZoom);
//scale view
m_ptOffset.rx() = (int)(ZoomFactor * (m_ptOffset.x()-a)+a);
m_ptOffset.ry() = (int)(ZoomFactor * (m_ptOffset.y()-b)+b);
// m_ZoomRect.setBottomRight(m_ZoomRect.topLeft());
m_ZoomRect.setRight(m_ZoomRect.left()-1);
}
else
{
m_ZoomRect.setBottomRight(m_ZoomRect.topLeft());
ReleaseZoom();
}
}
else if(m_bZoomIn && !CltRect.contains(point))
{
ReleaseZoom();
}
else
{
//The user has finished dragging something
if (m_pSailSection->m_iSelect>=0) TakePicture();
SailDlg *pSailDlg = (SailDlg*)m_pSailDlg;
pSailDlg->FillPointTable();
m_pSail->SplineSurface();
pSailDlg->UpdateSailView();
}
setCursor(m_hcCross);
UpdateView();
}
