int activateLayer(Layer* pLayer)
{
if (pLayer == NULL)
{
setLastError(SIMPLE_BAD_PARAMS);
return 1;
}
SpatialDataView* pView = dynamic_cast<SpatialDataView*>(pLayer->getView());
if (pView == NULL)
{
setLastError(SIMPLE_WRONG_VIEW_TYPE);
return 1;
}
pView->setActiveLayer(pLayer);
setLastError(SIMPLE_NO_ERROR);
return 0;
}
bool LayerImporter::execute(PlugInArgList* pInArgList, PlugInArgList* pOutArgList)
{
Layer* pLayer = NULL;
Progress* pProgress = NULL;
DataElement* pElement = NULL;
SpatialDataView* pView = NULL;
StepResource pStep("Import layer", "app", "DF24688A-6B34-4244-98FF-5FFE2063AC05");
// get input arguments and log some useful info about them
{ // scope the MessageResource
MessageResource pMsg("Input arguments", "app", "C0A532DE-0E19-44D3-837C-16ABD267B2C1");
pProgress = pInArgList->getPlugInArgValue<Progress>(Executable::ProgressArg());
pMsg->addBooleanProperty("Progress Present", (pProgress != NULL));
pElement = pInArgList->getPlugInArgValue<DataElement>(Importer::ImportElementArg());
if (pElement == NULL)
{
if (pProgress != NULL)
{
pProgress->updateProgress("No data element", 100, ERRORS);
}
pStep->finalize(Message::Failure, "No data element");
return false;
}
pMsg->addProperty("Element name", pElement->getName());
pView = pInArgList->getPlugInArgValue<SpatialDataView>(Executable::ViewArg());
if (pView != NULL)
{
pMsg->addProperty("View name", pView->getName());
}
}
if (pProgress != NULL)
{
pProgress->updateProgress((string("Read and parse file ") + pElement->getFilename()),
20, NORMAL);
}
// parse the xml
XmlReader xml(Service<MessageLogMgr>()->getLog());
XERCES_CPP_NAMESPACE_QUALIFIER DOMDocument* pDomDocument = xml.parse(pElement->getFilename());
if (pDomDocument == NULL)
{
if (pProgress != NULL)
{
pProgress->updateProgress("Unable to parse the file", 100, ERRORS);
}
pStep->finalize(Message::Failure, "Unable to parse the file");
return false;
}
DOMElement* pRootElement = pDomDocument->getDocumentElement();
VERIFY(pRootElement != NULL);
if (pProgress != NULL)
{
pProgress->updateProgress("Create the layer", 40, NORMAL);
}
string name(A(pRootElement->getAttribute(X("name"))));
string type(A(pRootElement->getAttribute(X("type"))));
unsigned int formatVersion = atoi(A(pRootElement->getAttribute(X("version"))));
{ // scope the MessageResource
MessageResource pMsg("Layer information", "app", "AA358F7A-107E-456E-8D11-36DDBE5B1645");
pMsg->addProperty("name", name);
pMsg->addProperty("type", type);
pMsg->addProperty("format version", formatVersion);
}
// If user requested pixel coordinates be used.
bool usePixelCoords = false;
DataDescriptor* pDesc = pElement->getDataDescriptor();
VERIFY( pDesc );
pDesc->getMetadata()->getAttributeByPath( "Layer/Import Options/Use Pixel Coordinates" ).getValue( usePixelCoords );
if (usePixelCoords)
{
// Remove geoVertices and geoBox elements.
removeGeoNodes(pRootElement);
}
if (pView == NULL)
{
//no view provided, so find current view
SpatialDataWindow* pWindow = dynamic_cast<SpatialDataWindow*>(mpDesktop->getCurrentWorkspaceWindow());
if (pWindow != NULL)
{
pView = pWindow->getSpatialDataView();
}
}
if (pView == NULL)
{
if (pProgress != NULL)
{
pProgress->updateProgress("Could not access the view to create the layer.", 100, ERRORS);
}
pStep->finalize(Message::Failure, "Could not access the view to create the layer.");
return false;
}
bool error = false;
LayerType layerType = StringUtilities::fromXmlString<LayerType>(type, &error);
if (error == true)
{
if (pProgress != NULL)
{
pProgress->updateProgress("The layer type is invalid.", 100, ERRORS);
}
pStep->finalize(Message::Failure, "The layer type is invalid.");
return false;
}
LayerList* pLayerList = pView->getLayerList();
if (pLayerList != NULL)
{
RasterElement* pNewParentElement = pLayerList->getPrimaryRasterElement();
if (pNewParentElement != NULL)
{
Service<ModelServices> pModel;
if (pModel->setElementParent(pElement, pNewParentElement) == false)
{
pProgress->updateProgress("The layer already exists.", 100, ERRORS);
pStep->finalize(Message::Failure, "The layer already exists.");
return false;
}
}
}
UndoGroup group(pView, "Import " + StringUtilities::toDisplayString(layerType) + " Layer");
pLayer = pView->createLayer(layerType, pElement);
if (pLayer == NULL)
{
if (pProgress != NULL)
{
pProgress->updateProgress("Unable to create the layer", 100, ERRORS);
}
pStep->finalize(Message::Failure, "Unable to create the layer");
return false;
}
if (pProgress != NULL)
{
pProgress->updateProgress("Build the layer", 60, NORMAL);
}
// deserialize the layer
try
{
if (pLayer->fromXml(pRootElement, formatVersion) == false)
{
pProgress->updateProgress("Problem with layer file.", 100, ERRORS);
pStep->finalize(Message::Failure, "Problem with layer file.");
return false;
}
}
catch (XmlReader::DomParseException&)
{
return false;
}
pStep->finalize(Message::Success);
if (pProgress != NULL)
{
pProgress->updateProgress("Finished loading the layer", 100, NORMAL);
}
// Add the layer to the view
pView->addLayer(pLayer);
pView->setActiveLayer(pLayer);
pView->setMouseMode("LayerMode");
if (pOutArgList != NULL)
{
// set the output arguments
pOutArgList->setPlugInArgValue("Layer", pLayer);
}
return true;
}