wxSize wxEnhMetaFile::GetSize() const
{
wxSize size = wxDefaultSize;
if ( Ok() )
{
ENHMETAHEADER hdr;
if ( !::GetEnhMetaFileHeader(GetEMF(), sizeof(hdr), &hdr) )
{
wxLogLastError(_T("GetEnhMetaFileHeader"));
}
else
{
// the width and height are in HIMETRIC (0.01mm) units, transform
// them to pixels
LONG w = hdr.rclFrame.right,
h = hdr.rclFrame.bottom;
HIMETRICToPixel(&w, &h);
size.x = w;
size.y = h;
}
}
return size;
}
bool wxEnhMetaFile::Play(wxDC *dc, wxRect *rectBound)
{
wxCHECK_MSG( Ok(), false, _T("can't play invalid enhanced metafile") );
wxCHECK_MSG( dc, false, _T("invalid wxDC in wxEnhMetaFile::Play") );
RECT rect;
if ( rectBound )
{
rect.top = rectBound->y;
rect.left = rectBound->x;
rect.right = rectBound->x + rectBound->width;
rect.bottom = rectBound->y + rectBound->height;
}
else
{
wxSize size = GetSize();
rect.top =
rect.left = 0;
rect.right = size.x;
rect.bottom = size.y;
}
if ( !::PlayEnhMetaFile(GetHdcOf(*dc), GetEMF(), &rect) )
{
wxLogLastError(_T("PlayEnhMetaFile"));
return false;
}
return true;
}
void wxEnhMetaFile::Free()
{
if ( m_hMF )
{
if ( !::DeleteEnhMetaFile(GetEMF()) )
{
wxLogLastError(_T("DeleteEnhMetaFile"));
}
}
}
bool wxEnhMetaFile::Play(wxDC *dc, wxRect *rectBound)
{
wxCHECK_MSG( IsOk(), false, wxT("can't play invalid enhanced metafile") );
wxCHECK_MSG( dc, false, wxT("invalid wxDC in wxEnhMetaFile::Play") );
RECT rect;
if ( rectBound )
{
rect.top = rectBound->y;
rect.left = rectBound->x;
rect.right = rectBound->x + rectBound->width;
rect.bottom = rectBound->y + rectBound->height;
}
else
{
wxSize size = GetSize();
rect.top =
rect.left = 0;
rect.right = size.x;
rect.bottom = size.y;
}
wxDCImpl *impl = dc->GetImpl();
wxMSWDCImpl *msw_impl = wxDynamicCast( impl, wxMSWDCImpl );
if (!msw_impl)
return false;
if ( !::PlayEnhMetaFile(GetHdcOf(*msw_impl), GetEMF(), &rect) )
{
wxLogLastError(wxT("PlayEnhMetaFile"));
return false;
}
return true;
}