tesseract  5.0.0
tesseract::TessHOcrRenderer Class Reference

#include <renderer.h>

Inheritance diagram for tesseract::TessHOcrRenderer:
tesseract::TessResultRenderer

Public Member Functions

 TessHOcrRenderer (const char *outputbase, bool font_info)
 
 TessHOcrRenderer (const char *outputbase)
 
- Public Member Functions inherited from tesseract::TessResultRenderer
virtual ~TessResultRenderer ()
 
void insert (TessResultRenderer *next)
 
TessResultRenderernext ()
 
bool BeginDocument (const char *title)
 
bool AddImage (TessBaseAPI *api)
 
bool EndDocument ()
 
const char * file_extension () const
 
const char * title () const
 
bool happy () const
 
int imagenum () const
 

Protected Member Functions

bool BeginDocumentHandler () override
 
bool AddImageHandler (TessBaseAPI *api) override
 
bool EndDocumentHandler () override
 
- Protected Member Functions inherited from tesseract::TessResultRenderer
 TessResultRenderer (const char *outputbase, const char *extension)
 
void AppendString (const char *s)
 
void AppendData (const char *s, int len)
 

Detailed Description

Renders tesseract output into an hocr text string

Definition at line 166 of file renderer.h.

Constructor & Destructor Documentation

◆ TessHOcrRenderer() [1/2]

tesseract::TessHOcrRenderer::TessHOcrRenderer ( const char *  outputbase,
bool  font_info 
)
explicit

Definition at line 464 of file hocrrenderer.cpp.

465  : TessResultRenderer(outputbase, "hocr") {
466  font_info_ = font_info;
467 }
TessResultRenderer(const char *outputbase, const char *extension)
Definition: renderer.cpp:33

◆ TessHOcrRenderer() [2/2]

tesseract::TessHOcrRenderer::TessHOcrRenderer ( const char *  outputbase)
explicit

Definition at line 459 of file hocrrenderer.cpp.

460  : TessResultRenderer(outputbase, "hocr") {
461  font_info_ = false;
462 }

Member Function Documentation

◆ AddImageHandler()

bool tesseract::TessHOcrRenderer::AddImageHandler ( TessBaseAPI api)
overrideprotectedvirtual

Implements tesseract::TessResultRenderer.

Definition at line 502 of file hocrrenderer.cpp.

502  {
503  const std::unique_ptr<const char[]> hocr(api->GetHOCRText(imagenum()));
504  if (hocr == nullptr) {
505  return false;
506  }
507 
508  AppendString(hocr.get());
509 
510  return true;
511 }
void AppendString(const char *s)
Definition: renderer.cpp:111

◆ BeginDocumentHandler()

bool tesseract::TessHOcrRenderer::BeginDocumentHandler ( )
overrideprotectedvirtual

Reimplemented from tesseract::TessResultRenderer.

Definition at line 469 of file hocrrenderer.cpp.

469  {
470  AppendString(
471  "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
472  "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
473  " \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n"
474  "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" "
475  "lang=\"en\">\n <head>\n <title>");
476  AppendString(title());
477  AppendString(
478  "</title>\n"
479  " <meta http-equiv=\"Content-Type\" content=\"text/html;"
480  "charset=utf-8\"/>\n"
481  " <meta name='ocr-system' content='tesseract " TESSERACT_VERSION_STR
482  "' />\n"
483  " <meta name='ocr-capabilities' content='ocr_page ocr_carea ocr_par"
484  " ocr_line ocrx_word ocrp_wconf");
485  if (font_info_) {
486  AppendString(" ocrp_lang ocrp_dir ocrp_font ocrp_fsize");
487  }
488  AppendString(
489  "'/>\n"
490  " </head>\n"
491  " <body>\n");
492 
493  return true;
494 }
#define TESSERACT_VERSION_STR
Definition: version.h:32
const char * title() const
Definition: renderer.h:88

◆ EndDocumentHandler()

bool tesseract::TessHOcrRenderer::EndDocumentHandler ( )
overrideprotectedvirtual

Reimplemented from tesseract::TessResultRenderer.

Definition at line 496 of file hocrrenderer.cpp.

496  {
497  AppendString(" </body>\n</html>\n");
498 
499  return true;
500 }

The documentation for this class was generated from the following files: