bool DeriveLayer::execute(PlugInArgList* pInArgList, PlugInArgList* pOutArgList)
{
VERIFY(pInArgList != NULL);
StepResource pStep("Execute Wizard Item", "app", "56D70072-0716-4506-B70D-9E6BD10C96A3");
pStep->addProperty("Item", getName());
mpStep = pStep.get();
if (!extractInputArgs(pInArgList))
{
reportError("Unable to extract input arguments.", "4DB42DD5-2198-4d1e-BBB5-9745D4242C9D");
return false;
}
// Get the view
SpatialDataView* pView = dynamic_cast<SpatialDataView*>(mpInputLayer->getView());
if (pView == NULL)
{
reportError("Only layers in a spatial data view can be converted.", "{039ac767-e6d5-441b-9b27-bf59cbb9ee9d}");
return false;
}
Layer* pNewLayer = NULL;
if (mNewLayerName.empty())
{
pNewLayer = pView->convertLayer(mpInputLayer, mNewLayerType);
}
else
{
pNewLayer = pView->deriveLayer(mpInputLayer, mNewLayerType);
if (pNewLayer != NULL)
{
if (!pView->getLayerList()->renameLayer(pNewLayer, mNewLayerName))
{
pView->deleteLayer(pNewLayer);
reportError("Unable to derive a layer with the given name, because another layer "
"with the same name already exists.", "{1e81e201-624f-4e96-83b5-8ceae01d7c1d}");
return false;
}
}
}
if (pNewLayer == NULL)
{
reportError("Unable to convert the layer.", "{f09810c2-f2a2-4887-a0f0-6848d74ffd28}");
return false;
}
// Set the output value
if (pOutArgList != NULL)
{
if (!pOutArgList->setPlugInArgValue("Layer", pNewLayer) ||
!pOutArgList->setPlugInArgValue("Element", pNewLayer->getDataElement()))
{
reportError("Could not set the output value!", "3E2591B0-F41B-4de1-9D76-45245F9EF343");
return false;
}
}
reportComplete();
return true;
}
Layer* deriveLayer(Layer* pLayer, const char* pName, const char* pType)
{
if (pLayer == NULL)
{
setLastError(SIMPLE_BAD_PARAMS);
return NULL;
}
SpatialDataView* pView = dynamic_cast<SpatialDataView*>(pLayer->getView());
if (pView == NULL)
{
setLastError(SIMPLE_WRONG_VIEW_TYPE);
return NULL;
}
pLayer = pView->deriveLayer(pLayer, StringUtilities::fromXmlString<LayerType>(std::string(pType)));
if (pLayer == NULL)
{
setLastError(SIMPLE_WRONG_TYPE);
return NULL;
}
if (pName != NULL)
{
pView->getLayerList()->renameLayer(pLayer, std::string(pName));
}
setLastError(SIMPLE_NO_ERROR);
return pLayer;
}