void ccGraphicalSegmentationTool::addPointToPolyline(int x, int y)
{
if ((m_state & STARTED) == 0)
return;
assert(m_polyVertices);
assert(m_segmentationPoly);
unsigned sz = m_polyVertices->size();
//particular case: we close the rectangular selection by a 2nd click
if (m_rectangularSelection && sz==4 && (m_state & RUNNING))
return;
//new point
CCVector3 P((PointCoordinateType)x,(PointCoordinateType)y,(PointCoordinateType)0);
//CTRL key pressed at the same time?
bool ctrlKeyPressed = m_rectangularSelection || ((QApplication::keyboardModifiers() & Qt::ControlModifier) == Qt::ControlModifier);
//start new polyline?
if (((m_state & RUNNING) == 0) || sz==0 || ctrlKeyPressed)
{
//reset polyline
m_segmentationPoly->clear();
m_polyVertices->clear();
//reset state
m_state = (ctrlKeyPressed ? RECTANGLE : POLYLINE);
m_state |= (STARTED | RUNNING);
//we add the same point twice (the last point will be used for display only)
m_polyVertices->reserve(2);
m_polyVertices->addPoint(P);
m_polyVertices->addPoint(P);
m_segmentationPoly->addPointIndex(0);
m_segmentationPoly->addPointIndex(1);
}
else //next points in "polyline mode" only
{
//we were already in 'polyline' mode?
if (m_state & POLYLINE)
{
m_polyVertices->reserve(sz+4);
//we replace last point by the current one
CCVector3* lastP = const_cast<CCVector3*>(m_polyVertices->getPointPersistentPtr(sz));
*lastP = P;
//and add a new (equivalent) one
m_polyVertices->addPoint(P);
m_segmentationPoly->addPointIndex(sz);
m_segmentationPoly->setClosingState(true);
}
else //we must change mode
{
assert(false); //we shouldn't fall here?!
m_state &= (~RUNNING);
addPointToPolyline(x,y);
return;
}
}
if (m_associatedWin)
m_associatedWin->updateGL();
}
void ccGraphicalSegmentationTool::addPointToPolyline(int x, int y)
{
if ((m_state & STARTED) == 0)
{
return;
}
if (!m_associatedWin)
{
assert(false);
return;
}
assert(m_polyVertices);
assert(m_segmentationPoly);
unsigned vertCount = m_polyVertices->size();
//particular case: we close the rectangular selection by a 2nd click
if (m_rectangularSelection && vertCount == 4 && (m_state & RUNNING))
return;
//new point
CCVector3 P(static_cast<PointCoordinateType>(x - m_associatedWin->width()/2),
static_cast<PointCoordinateType>(m_associatedWin->height()/2 - y),
0);
//CTRL key pressed at the same time?
bool ctrlKeyPressed = m_rectangularSelection || ((QApplication::keyboardModifiers() & Qt::ControlModifier) == Qt::ControlModifier);
//start new polyline?
if (((m_state & RUNNING) == 0) || vertCount == 0 || ctrlKeyPressed)
{
//reset state
m_state = (ctrlKeyPressed ? RECTANGLE : POLYLINE);
m_state |= (STARTED | RUNNING);
//reset polyline
m_polyVertices->clear();
if (!m_polyVertices->reserve(2))
{
ccLog::Error("Out of memory!");
allowPolylineExport(false);
return;
}
//we add the same point twice (the last point will be used for display only)
m_polyVertices->addPoint(P);
m_polyVertices->addPoint(P);
m_segmentationPoly->clear();
if (!m_segmentationPoly->addPointIndex(0,2))
{
ccLog::Error("Out of memory!");
allowPolylineExport(false);
return;
}
}
else //next points in "polyline mode" only
{
//we were already in 'polyline' mode?
if (m_state & POLYLINE)
{
if (!m_polyVertices->reserve(vertCount+1))
{
ccLog::Error("Out of memory!");
allowPolylineExport(false);
return;
}
//we replace last point by the current one
CCVector3* lastP = const_cast<CCVector3*>(m_polyVertices->getPointPersistentPtr(vertCount-1));
*lastP = P;
//and add a new (equivalent) one
m_polyVertices->addPoint(P);
if (!m_segmentationPoly->addPointIndex(vertCount))
{
ccLog::Error("Out of memory!");
return;
}
m_segmentationPoly->setClosed(true);
}
else //we must change mode
{
assert(false); //we shouldn't fall here?!
m_state &= (~RUNNING);
addPointToPolyline(x,y);
return;
}
}
m_associatedWin->redraw(true, false);
}
