//
//Routine Name:
//
// PrintTicketHandler::ProcessPart
//
//Routine Description:
//
// Merges the Fixed Page Print Ticket with the
// Fixed Document Print Ticket and caches the result.
// The tickets are merged at the Page scope, so the
// result contains no job-level or document-level features.
//
//Arguments:
//
// pFP - Fixed Page part
//
void
PrintTicketHandler::ProcessPart(
const IFixedPage_t &pFP
)
{
IPartPrintTicket_t pPrintTicket;
HRESULT hr = pFP->GetPrintTicket(&pPrintTicket);
//
// E_ELEMENT_NOT_FOUND means that this Fixed Page
// does not have a Print Ticket. Propagate the Document
// Print Ticket.
// All other failed HRESULTs should be thrown.
//
if (hr == E_ELEMENT_NOT_FOUND)
{
m_pPagePrintTicket = m_pDocumentPrintTicket;
return;
}
THROW_ON_FAILED_HRESULT(hr);
m_pPagePrintTicket = ProcessPrintTicket(
m_pDocumentPrintTicket,
pPrintTicket,
kPTPageScope
);
}
//
//Routine Name:
//
// PrintTicketHandler::ProcessPrintTicket
//
//Routine Description:
//
// Gets the print ticket from the part, merges with
// the base ticket, and returns the result.
//
//Arguments:
//
// pBasePrintTicket - Base Print Ticket
// pDeltaPrintTicketPart - Delta Print Pipeline Print Ticket Part
// scope - Scope of the merged Print Ticket
//
//Return Value:
//
// IStream_t (smart pointer)
// Merged stream
//
IStream_t
PrintTicketHandler::ProcessPrintTicket(
const IStream_t &pBasePrintTicket,
const IPartPrintTicket_t &pDeltaPrintTicketPart,
EPrintTicketScope scope
)
{
IStream_t pMergedPrintTicket;
IStream_t pDeltaPrintTicket;
pDeltaPrintTicket = GetStreamFromPart(
static_cast<IPartBase_t>(pDeltaPrintTicketPart)
);
//
// Before calling PTMergeAndValidatePrintTicket, both input
// Print Ticket streams MUST be at position 0. The temp Print
// Ticket stream is already at position 0, but the Base Print
// Ticket may not be. Seek it to 0 to be sure.
//
LARGE_INTEGER zero;
zero.QuadPart = 0;
THROW_ON_FAILED_HRESULT(
pBasePrintTicket->Seek(zero, SEEK_SET, NULL)
);
//
// Merge the delta Print Ticket with the
// base Print Ticket
//
THROW_ON_FAILED_HRESULT(
::CreateStreamOnHGlobal(
NULL,
TRUE, // delete on release
&pMergedPrintTicket
)
);
m_pHProvider->PTMergeAndValidatePrintTicket(
pBasePrintTicket,
pDeltaPrintTicket,
scope,
pMergedPrintTicket
);
return pMergedPrintTicket;
}
//
//Routine Name:
//
// XPSRasFilter::InitializeFilter_throws
//
//Routine Description:
//
// Implements IPrintPipelineFilter initialization. Gets
// all necessary communication interfaces.
//
//Arguments:
//
// pICommunicator - interface to interfilter communicator
// pIPropertyBag - interface to pipeline property bag
//
VOID
XPSRasFilter::InitializeFilter_throws(
const IInterFilterCommunicator_t &pICommunicator,
const IPrintPipelinePropertyBag_t &pIPropertyBag
)
{
//
// Get the pipeline communication interfaces
//
THROW_ON_FAILED_HRESULT(
pICommunicator->RequestReader(reinterpret_cast<void**>(&m_pReader))
);
THROW_ON_FAILED_HRESULT(
pICommunicator->RequestWriter(reinterpret_cast<void**>(&m_pWriter))
);
{
//
// Check to ensure that the provided interfaces are as expected.
// That is, that the GUIDs were correctly listed in the
// pipeline configuration file
//
IXpsDocumentProvider_t pReaderCheck;
IPrintWriteStream_t pWriterCheck;
THROW_ON_FAILED_HRESULT(
m_pReader.QueryInterface(&pReaderCheck)
);
THROW_ON_FAILED_HRESULT(
m_pWriter.QueryInterface(&pWriterCheck)
);
}
//
// Save a pointer to the Property Bag for further
// initialization, later.
//
m_pIPropertyBag = pIPropertyBag;
}
//
//Routine Name:
//
// PrintTicketHandler::QueryPhysicalPageSize
//
//Routine Description:
//
// Queries the physical page size from the
// Print Ticket using an XPath query.
//
//Return Value:
//
// XPS_SIZE
// Physical page size from the Print Ticket (in XPS units).
//
XPS_SIZE
PrintTicketHandler::QueryPhysicalPageSize()
{
//
// Default page size: 8.5" x 11" at Xps DPI
//
XPS_SIZE pageSize = {11.0f * xpsDPI,
8.5f * xpsDPI};
{
//
// Perform the page width query on the print ticket
//
IXMLDOMNode_t pNode;
//
// See the comment in PrintTicketHandler::QueryDPI() for details
// about this XPath query.
//
BSTR_t query(L"psf:PrintTicket/psf:Feature[substring-after(@name,':')='PageMediaSize']"
L"[name(namespace::*[.='http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords'])=substring-before(@name,':')]"
L"/*/psf:ScoredProperty[substring-after(@name,':')='MediaSizeWidth']"
L"[name(namespace::*[.='http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords'])=substring-before(@name,':')]"
L"/psf:Value");
THROW_ON_FAILED_HRESULT(
m_pDOMDoc->selectSingleNode(query, &pNode)
);
if (pNode)
{
BSTR_t strWidth;
THROW_ON_FAILED_HRESULT(
pNode->get_text(&strWidth)
);
LONG width;
THROW_ON_FAILED_HRESULT(
::VarI4FromStr(
strWidth,
LOCALE_USER_DEFAULT,
0, // no custom flags
&width
)
);
//
// the page dimensions are in microns; convert to Xps units
//
pageSize.width = MicronsToXpsUnits(width);
}
}
{
//
// Perform the page height query on the print ticket
//
IXMLDOMNode_t pNode;
//
// See the comment in PrintTicketHandler::QueryDPI() for details
// about this XPath query.
//
BSTR_t query(L"psf:PrintTicket/psf:Feature[substring-after(@name,':')='PageMediaSize']"
L"[name(namespace::*[.='http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords'])=substring-before(@name,':')]"
L"/*/psf:ScoredProperty[substring-after(@name,':')='MediaSizeHeight']"
L"[name(namespace::*[.='http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords'])=substring-before(@name,':')]"
L"/psf:Value");
THROW_ON_FAILED_HRESULT(
m_pDOMDoc->selectSingleNode(query, &pNode)
);
if (pNode)
{
BSTR_t strHeight;
THROW_ON_FAILED_HRESULT(
pNode->get_text(&strHeight)
);
LONG height;
THROW_ON_FAILED_HRESULT(
::VarI4FromStr(
strHeight,
LOCALE_USER_DEFAULT,
0, // no custom flags
&height
)
);
//
// the page dimensions are in microns; convert to Xps unit
//
pageSize.height = MicronsToXpsUnits(height);
}
}
{
//
// Perform the landscape query on the print ticket
//
IXMLDOMNode_t pNode;
//
// See the comment in PrintTicketHandler::QueryDPI() for details
// about this XPath query.
//
BSTR_t query(L"psf:PrintTicket/psf:Feature[substring-after(@name,':')='PageOrientation']"
L"[name(namespace::*[.='http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords'])=substring-before(@name,':')]"
L"/psf:Option[substring-after(@name,':')='Landscape']"
L"[name(namespace::*[.='http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords'])=substring-before(@name,':')]");
THROW_ON_FAILED_HRESULT(
m_pDOMDoc->selectSingleNode(query, &pNode)
);
if (pNode)
{
//
// landscape. swap height and width.
//
FLOAT tmp;
tmp = pageSize.height;
pageSize.height = pageSize.width;
pageSize.width = tmp;
}
DoTraceMessage(XPSRASFILTER_TRACE_VERBOSE, L"Physical Page Size: %f x %f", pageSize.width, pageSize.height);
}
return pageSize;
}
//
//Routine Name:
//
// PrintTicketHandler::CreatePrintTicketHandler
//
//Routine Description:
//
// Static factory method that creates an instance of
// PrintTicketHandler.
//
//Arguments:
//
// pPropertyBag - Property Bag
//
//Return Value:
//
// PrintTicketHandler_t (smart ptr)
// The new PrintTicketHandler.
//
PrintTicketHandler_t
PrintTicketHandler::CreatePrintTicketHandler(
const IPrintPipelinePropertyBag_t &pPropertyBag
)
{
//
// Create MSXML DOM document
//
IXMLDOMDocument2_t pDOMDoc;
THROW_ON_FAILED_HRESULT(
::CoCreateInstance(
__uuidof(DOMDocument60),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IXMLDOMDocument2),
reinterpret_cast<LPVOID*>(&pDOMDoc)
)
);
//
// Get the default user Print Ticket Stream Factory
//
Variant_t varUserPrintTicket;
THROW_ON_FAILED_HRESULT(
pPropertyBag->GetProperty(
XPS_FP_USER_PRINT_TICKET,
&varUserPrintTicket
)
);
IUnknown_t pUnk = varUserPrintTicket.punkVal;
IPrintReadStreamFactory_t pStreamFactory;
THROW_ON_FAILED_HRESULT(
pUnk.QueryInterface(&pStreamFactory)
);
//
// Get the default user Print Ticket stream
// and wrap it in an IStream
//
IPrintReadStream_t pUserPrintTicketStream;
THROW_ON_FAILED_HRESULT(
pStreamFactory->GetStream(&pUserPrintTicketStream)
);
IStream_t pUserPrintTicket =
CreateIStreamFromIPrintReadStream(pUserPrintTicketStream);
//
// Get the Printer Name
//
Variant_t varPrinterName;
THROW_ON_FAILED_HRESULT(
pPropertyBag->GetProperty(
XPS_FP_PRINTER_NAME,
&varPrinterName
)
);
BSTR_t pPrinterName(varPrinterName.bstrVal);
//
// Get the User Security Token
// Avoid CComVariant if getting the XPS_FP_USER_TOKEN property.
// Please refer to http://go.microsoft.com/fwlink/?LinkID=255534 for detailed information.
//
SafeVariant varUserSecurityToken;
THROW_ON_FAILED_HRESULT(
pPropertyBag->GetProperty(
XPS_FP_USER_TOKEN,
&varUserSecurityToken
)
);
//
// Open the Print Ticket Provider
//
SafeHPTProvider_t pHProvider(
new SafeHPTProvider(
pPrinterName,
varUserSecurityToken.byref
)
);
PrintTicketHandler_t toReturn(
new PrintTicketHandler(
pDOMDoc,
pHProvider,
pUserPrintTicket
)
);
return toReturn;
}
//
//Routine Name:
//
// PrintTicketHandler::QueryDPI
//
//Routine Description:
//
// Queries the DPI from the Print Ticket using an XPath query.
//
//Return Value:
//
// FLOAT
// DPI from the Print Ticket.
//
FLOAT
PrintTicketHandler::QueryDPI()
{
//
// Default DPI: 96 DPI
//
FLOAT dpi = 96.0;
//
// Perform the page resolution query on the print ticket
//
IXMLDOMNodeList_t pNodes;
//
// The following XPath query is fairly straightforward, except for the
// predicate attached to Feature. This is necessary to match both the
// keyword AND the namespace of the "name" of the Feature as in:
//
// <psf:Feature name="psk:PageResolution">
//
// In order to match the keyword, we match the substring after the colon:
//
// [substring-after(@name,':')='PageResolution']
//
// We also need to ensure that the namespace refers to the correct
// printschemakeywords namespace. Thus we get:
//
// [name(namespace::*[.=PRINTSCHEMAKEYWORDNS])=substring-before(@name,':')]
//
// where PRINTSCHEMAKEYWORDNS is:
//
// http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords
//
BSTR_t query(L"psf:PrintTicket/psf:Feature[substring-after(@name,':')='PageResolution']"
L"[name(namespace::*[.='http://schemas.microsoft.com/windows/2003/08/printing/printschemakeywords'])=substring-before(@name,':')]"
L"/*/*/psf:Value");
THROW_ON_FAILED_HRESULT(
m_pDOMDoc->selectNodes(query, &pNodes)
);
if (pNodes)
{
//
// The Print Ticket may have both X and Y resolutions defined, but
// the Xps Rasterization Service only accepts a single resolution.
// We query for both X and Y resolutions and take the larger of the
// two as the destination DPI. The resultant raster data could then
// be scaled down in the other dimension to achieve the non-square
// pixels.
//
LONG numResolutions;
THROW_ON_FAILED_HRESULT(
pNodes->get_length(&numResolutions)
);
if (numResolutions != 0 &&
numResolutions != 1 &&
numResolutions != 2)
{
//
// We expect 0, 1, or 2 resolutions to be set in the Print Ticket.
// Throw if this is not the case.
//
THROW_ON_FAILED_HRESULT(E_UNEXPECTED);
}
LONG maxResolution = 0;
for (INT i = 0; i < numResolutions; i++)
{
IXMLDOMNode_t pCurrentNode;
THROW_ON_FAILED_HRESULT(
pNodes->get_item(i, &pCurrentNode)
);
BSTR_t strResolution;
THROW_ON_FAILED_HRESULT(
pCurrentNode->get_text(&strResolution)
);
LONG resolution;
THROW_ON_FAILED_HRESULT(
::VarI4FromStr(
strResolution,
LOCALE_USER_DEFAULT,
0, // no custom flags
&resolution
)
);
if (resolution > maxResolution)
{
maxResolution = resolution;
}
}
dpi = static_cast<FLOAT>(maxResolution);
}
DoTraceMessage(XPSRASFILTER_TRACE_VERBOSE, L"Got DPI: %f", dpi);
return dpi;
}
//
//Routine Name:
//
// PrintTicketHandler::GetMergedPrintTicketParams
//
//Routine Description:
//
// Queries a set of parameters from the merged print ticket.
//
// NOTE: Relies on successful calls to all three PrintTicket
// processing methods.
//
//Return Value:
//
// ParametersFromPrintTicket
// The set of parameters queried from the merged
// Print Ticket.
//
ParametersFromPrintTicket
PrintTicketHandler::GetMergedPrintTicketParams()
{
DoTraceMessage(XPSRASFILTER_TRACE_VERBOSE, L"Getting Print Ticket parameters");
if (!m_pPagePrintTicket)
{
DoTraceMessage(XPSRASFILTER_TRACE_ERROR, L"GetMergedPrintTicketParams called before ProcessPagePrintTicket");
THROW_ON_FAILED_HRESULT(E_FAIL);
}
ParametersFromPrintTicket params;
//
// Seek the Page-level Print Ticket to 0
//
LARGE_INTEGER zero;
zero.QuadPart = 0;
THROW_ON_FAILED_HRESULT(
m_pPagePrintTicket->Seek(zero, SEEK_SET, NULL)
);
//
// Load the print ticket stream into a DOM document
//
// NOTE: We are only looking for features at the Page scope for this sample,
// so we only extract features from the effective page-level PrintTicket.
//
Variant_t varStream(m_pPagePrintTicket);
VARIANT_BOOL success;
THROW_ON_FAILED_HRESULT(
m_pDOMDoc->load(varStream, &success)
);
if (!success)
{
WPP_LOG_ON_FAILED_HRESULT(E_FAIL);
THROW_ON_FAILED_HRESULT(E_FAIL);
}
//
// Set the DOM Selection namespace to simplify queries
//
BSTR_t ns(L"xmlns:psf='http://schemas.microsoft.com/windows/2003/08/printing/printschemaframework'");
Variant_t nsProp(ns);
THROW_ON_FAILED_HRESULT(
m_pDOMDoc->setProperty(L"SelectionNamespaces", nsProp)
);
//
// Query the print ticket for parameters of interest
//
params.destDPI = QueryDPI();
params.scaling = QueryScaling();
params.physicalPageSize = QueryPhysicalPageSize();
//
// We simulate imageable area by assuming a constant margin of
// around the entire page
//
params.imageableArea.x = g_pageMargin * xpsDPI;
params.imageableArea.y = g_pageMargin * xpsDPI;
params.imageableArea.height = params.physicalPageSize.height
- 2 * g_pageMargin * xpsDPI;
params.imageableArea.width = params.physicalPageSize.width
- 2 * g_pageMargin * xpsDPI;
return params;
}
//
//Routine Name:
//
// XPSRasFilter::StartOperation_throws
//
//Routine Description:
//
// Iterates over the 'trunk' parts of the document
// and calls appropriate processing methods.
//
//Arguments:
//
// None
//
void
XPSRasFilter::StartOperation_throws()
{
//
// CoInitialize/CoUninitialize RAII object.
// COM is inititalized for the lifetime of this method.
//
SafeCoInit coInit;
IXpsOMObjectFactory_t pOMFactory;
//
// Create Xps Object Model Object Factory instance
//
THROW_ON_FAILED_HRESULT(
::CoCreateInstance(
__uuidof(XpsOMObjectFactory),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IXpsOMObjectFactory),
reinterpret_cast<LPVOID*>(&pOMFactory)
)
);
IOpcFactory_t pOpcFactory;
//
// Create Opc Object Factory instance
//
THROW_ON_FAILED_HRESULT(
::CoCreateInstance(
__uuidof(OpcFactory),
NULL,
CLSCTX_INPROC_SERVER,
__uuidof(IOpcFactory),
reinterpret_cast<LPVOID*>(&pOpcFactory)
)
);
//
// Create the rasterization interface
//
RasterizationInterface_t pRasInterface =
RasterizationInterface::CreateRasterizationInterface(
m_pIPropertyBag,
m_pWriter
);
//
// Create the Print Ticket Handler
//
PrintTicketHandler_t pPrintTicketHandler =
PrintTicketHandler::CreatePrintTicketHandler(
m_pIPropertyBag
);
IUnknown_t pUnk;
//
// Get first part
//
THROW_ON_FAILED_HRESULT(m_pReader->GetXpsPart(&pUnk));
while (m_pLiveness->IsAlive() &&
pUnk != NULL)
{
IXpsDocument_t pDoc;
IFixedDocumentSequence_t pFDS;
IFixedDocument_t pFD;
IFixedPage_t pFP;
if (SUCCEEDED(pUnk.QueryInterface(&pFP)))
{
DoTraceMessage(XPSRASFILTER_TRACE_VERBOSE, L"Handling a Page");
pPrintTicketHandler->ProcessPart(pFP);
ParametersFromPrintTicket printTicketParams =
pPrintTicketHandler->GetMergedPrintTicketParams();
pRasInterface->RasterizePage(
CreateXpsOMPageFromIFixedPage(pFP, pOMFactory, pOpcFactory),
printTicketParams,
m_pLiveness
);
}
else if (SUCCEEDED(pUnk.QueryInterface(&pFD)))
{
pPrintTicketHandler->ProcessPart(pFD);
}
else if (SUCCEEDED(pUnk.QueryInterface(&pFDS)))
{
pPrintTicketHandler->ProcessPart(pFDS);
}
else if (SUCCEEDED(pUnk.QueryInterface(&pDoc)))
{
//
// Do nothing with the XML Document part
//
}
else
{
//
// Any other document 'trunk' parts are ignored.
//
}
pUnk.Release();
//
// Get Next Part
//
THROW_ON_FAILED_HRESULT(m_pReader->GetXpsPart(&pUnk));
}
pRasInterface->FinishRasterization();
}
