void PageInfo::DecodeText(GP<ByteStream> pTextStream)
{
if (pTextStream == NULL)
return;
pTextStream->seek(0);
GP<DjVuText> pDjVuText = DjVuText::create();
pDjVuText->decode(pTextStream);
pText = pDjVuText->txt;
bTextDecoded = true;
}
void
display(const GURL &url)
{
DjVuDumpHelper helper;
GP<ByteStream> ibs = ByteStream::create(url, "rb");
GP<ByteStream> obs = helper.dump(ibs);
GUTF8String str;
size_t size = obs->size();
char *buf = str.getbuf(obs->size());
obs->seek(0);
obs->readall(buf, size);
GNativeString ns = str;
fputs((const char*)ns, outputf);
}
void
lt_XMLParser::Impl::ChangeText(
const int width, const int height,
DjVuFile &dfile, const lt_XMLTags &tags )
{
dfile.resume_decode(true);
GP<DjVuText> text = DjVuText::create();
GP<DjVuTXT> txt = text->txt = DjVuTXT::create();
// to store the new text
GP<ByteStream> textbs = ByteStream::create();
GP<DjVuInfo> info=(dfile.info);
if(info)
{
const int h=info->height;
const int w=info->width;
txt->page_zone.text_start = 0;
DjVuTXT::Zone &parent=txt->page_zone;
parent.rect.xmin=0;
parent.rect.ymin=0;
parent.rect.ymax=h;
parent.rect.xmax=w;
double ws=1.0;
if(width && width != w)
{
ws=((double)w)/((double)width);
}
double hs=1.0;
if(height && height != h)
{
hs=((double)h)/((double)height);
}
make_child_layer(parent, tags, *textbs, h, ws,hs);
textbs->write8(0);
long len = textbs->tell();
txt->page_zone.text_length = len;
textbs->seek(0,SEEK_SET);
textbs->read(txt->textUTF8.getbuf(len), len);
dfile.change_text(txt,false);
}
}
void
analyze_incl_chunk(const GURL &url)
{
GP<ByteStream> gbs = ByteStream::create(url,"rb");
char buffer[24];
memset(buffer, 0, sizeof(buffer));
gbs->read(buffer,sizeof(buffer));
char *s = buffer;
if (!strncmp(s, "AT&T", 4))
s += 4;
if (strncmp(s, "FORM", 4) || strncmp(s+8, "DJVI", 4))
G_THROW("Expecting a valid FORM:DJVI chunk in the included file");
gbs->seek(0);
GP<IFFByteStream> giff=IFFByteStream::create(gbs);
GUTF8String chkid;
giff->get_chunk(chkid); // FORM:DJVI
for(; giff->get_chunk(chkid); giff->close_chunk())
if (chkid=="Djbz")
analyze_djbz_chunk(giff->get_bytestream());
}
void PageInfo::DecodeAnno(GP<ByteStream> pAnnoStream)
{
if (pAnnoStream == NULL)
return;
pAnnoStream->seek(0);
GP<DjVuAnno> pDjVuAnno = DjVuAnno::create();
pDjVuAnno->decode(pAnnoStream);
pAnt = pDjVuAnno->ant;
if (pAnt != NULL)
{
for (GPosition pos = pAnt->map_areas; pos; ++pos)
{
GP<GMapArea> pArea = pAnt->map_areas[pos];
anno.push_back(Annotation());
anno.back().Init(pArea, szPage, nInitialRotate);
}
}
bAnnoDecoded = true;
}
