bool
wxSVGBitmapFileHandler::ProcessBitmap(const wxBitmap& bmp,
wxCoord x, wxCoord y,
wxOutputStream& stream) const
{
static int sub_images = 0;
if ( wxImage::FindHandler(wxBITMAP_TYPE_PNG) == NULL )
wxImage::AddHandler(new wxPNGHandler);
// find a suitable file name
wxString sPNG;
do
{
sPNG = wxString::Format("image%d.png", sub_images++);
}
while (wxFile::Exists(sPNG));
if ( !bmp.SaveFile(sPNG, wxBITMAP_TYPE_PNG) )
return false;
// reference the bitmap from the SVG doc using only filename & ext
sPNG = sPNG.AfterLast(wxFileName::GetPathSeparator());
// reference the bitmap from the SVG doc
wxString s;
s += wxString::Format(" <image x=\"%d\" y=\"%d\" "
"width=\"%dpx\" height=\"%dpx\" "
"title=\"Image from wxSVG\"\n",
x, y, bmp.GetWidth(), bmp.GetHeight());
s += wxString::Format(" xlink:href=\"%s\">\n</image>\n", sPNG);
// write to the SVG file
const wxCharBuffer buf = s.utf8_str();
stream.Write(buf, strlen((const char *)buf));
return stream.IsOk();
}
