// Update and send primitive
void TargetPrimitive::updateAndSendPrimitive(const Axes& axes, bool forceUpdate, bool pushAndPop, const QOpenGLContext* context)
{
// Check collection validity
if (!Collection::objectValid(collection_, "collection in TargetPrimitive::updateAndSendPrimitive")) return;
// Check whether the primitive for this collection needs updating
bool upToDate = true;
if (forceUpdate) upToDate = false;
else if (primitiveAxesUsedAt_ != axes.displayVersion()) upToDate = false;
else if (primitiveColourUsedAt_ != collection_->colourVersion()) upToDate = false;
else if (primitiveDataUsedAt_ != collection_->dataVersion()) upToDate = false;
else if (primitiveStyleUsedAt_ != collection_->displayStyleVersion()) upToDate = false;
// If the primitive is out of date, recreate it's data.
if (!upToDate)
{
// Recreate primitive depending on current style
switch (collection_->displayStyle())
{
case (Collection::LineXYStyle):
Surface::constructLineXY(primitive_, axes, collection_->displayAbscissa(), collection_->displayData(), collection_->colourScale());
break;
case (Collection::LineZYStyle):
Surface::constructLineZY(primitive_, axes, collection_->displayAbscissa(), collection_->displayData(), collection_->colourScale());
break;
case (Collection::GridStyle):
Surface::constructGrid(primitive_, axes, collection_->displayAbscissa(), collection_->displayData(), collection_->colourScale());
break;
case (Collection::SurfaceStyle):
case (Collection::UnlitSurfaceStyle):
Surface::constructFull(primitive_, axes, collection_->displayAbscissa(), collection_->displayData(), collection_->colourScale());
break;
default:
printf("Internal Error: Display style %i not accounted for in TargetPrimitive::updateAndSendPrimitive().\n", collection_->displayStyle());
break;
}
// Pop old primitive instance (unless flagged not to)
if ((!pushAndPop) && (primitive_.nInstances() != 0)) primitive_.popInstance(context);
// Push a new instance to create the new display list / vertex array
primitive_.pushInstance(context);
}
// Send primitive
sendToGL();
// Pop current instance (if flagged)
if (pushAndPop) primitive_.popInstance(context);
// Store version points for the up-to-date primitive
primitiveAxesUsedAt_ = axes.displayVersion();
primitiveColourUsedAt_ = collection_->colourVersion();
primitiveDataUsedAt_ = collection_->dataVersion();
primitiveStyleUsedAt_ = collection_->displayStyleVersion();
return;
}
