EMF_METAFILEDEVICECONTEXT3

EMF::METAFILEDEVICECONTEXT::METAFILEDEVICECONTEXT (FILE * fp_, const RECT * size, LPCWSTR description_w) [inline]

Most graphics programs seem to want to handle the opening and closing of files themselves, so this is an extension to the w32 interface.

Parameters

virtual EMF::METAFILEDEVICECONTEXT::~METAFILEDEVICECONTEXT () [inline], [virtual]

Destructor frees all the graphics objects which may have been allocated. Now, it also frees any metarecords which it might hold, too.

References deleteMetafile(), and records.

void EMF::METAFILEDEVICECONTEXT::appendHandle (METARECORD * record) [inline]

Add this record to the metafile.

Parameters

References header, records, and EMF::METARECORD::size().

void EMF::METAFILEDEVICECONTEXT::appendRecord (METARECORD * record) [inline]

Add this record to the metafile.

Parameters

References header, records, and EMF::METARECORD::size().

void EMF::METAFILEDEVICECONTEXT::clearHandle (DWORD handle) [inline]

Clear the usage of this handle

References EMF::OBJECT::handle, and handles.

void EMF::METAFILEDEVICECONTEXT::deleteMetafile (void) [inline]

Delete all the records from the metafile. This would seem to include deleting the header record as well.

References records.

Referenced by ~METAFILEDEVICECONTEXT().

OBJECTTYPE EMF::METAFILEDEVICECONTEXT::getType (void) const [inline], [virtual]

Return the type of this object (could probably do better with RTTI()).

Implements EMF::OBJECT.

void EMF::METAFILEDEVICECONTEXT::mergePoint (const LONG & x, const LONG & y) [inline]

Somewhat superfluous, except checker doesn't understand the initialization of automatic structures in the declaration.

References mergePoint().

Referenced by mergePoint().

void EMF::METAFILEDEVICECONTEXT::mergePoint (const POINT & p) [inline]

Take the given point and determine if it enlarges the 'painted' area of the device.

References header, max_device_point, min_device_point, update_frame, viewport_ext, viewport_org, window_ext, and window_org.

DWORD EMF::METAFILEDEVICECONTEXT::nextHandle (void) [inline]

Scan the bit vector of used handles and return the index of the first free bit as this objects metafile handle.

References handles, header, and EMF::ENHMETAHEADER::size().

DATASTREAM EMF::METAFILEDEVICECONTEXT::ds

All i/o to the metafile is wrapped by this class so that byte swapping on big-endian machines is transparent.

std::map< HGDIOBJ, HGDIOBJ > EMF::METAFILEDEVICECONTEXT::emf_handles

This map holds the current mapping between EMF handles and global object handles as a metafile is played back (with PlayEnhMetaFile).

Referenced by EMF::EMRSELECTOBJECT::execute(), EMF::EMRDELETEOBJECT::execute(), EMF::EMRCREATEPEN::execute(), EMF::EMREXTCREATEPEN::execute(), EMF::EMRCREATEBRUSHINDIRECT::execute(), and EMF::EMREXTCREATEFONTINDIRECTW::execute().

::FILE* EMF::METAFILEDEVICECONTEXT::fp

If it is a file-based metafile, then this pointer is not null.

std::vector< bool > EMF::METAFILEDEVICECONTEXT::handles

For compatibility, it appears that metafile handles are reused as objects are deleted. Attempt to emulate that behavior with a bit vector of used metafile handles.

Referenced by clearHandle(), and nextHandle().

ENHMETAHEADER* EMF::METAFILEDEVICECONTEXT::header

Serves double duty as the physical device description.

Referenced by appendHandle(), appendRecord(), mergePoint(), and nextHandle().

std::vector< EMF::METARECORD* > EMF::METAFILEDEVICECONTEXT::records

All of the metafile records are stored in memory.

Referenced by appendHandle(), appendRecord(), deleteMetafile(), and ~METAFILEDEVICECONTEXT().