tesseract  4.1.0
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 ()
 
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

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

Definition at line 375 of file hocrrenderer.cpp.

376  : TessResultRenderer(outputbase, "hocr") {
377  font_info_ = font_info;
378 }
TessResultRenderer(const char *outputbase, const char *extension)
Definition: renderer.cpp:33
tesseract::TessHOcrRenderer::TessHOcrRenderer ( const char *  outputbase)
explicit

Definition at line 370 of file hocrrenderer.cpp.

371  : TessResultRenderer(outputbase, "hocr") {
372  font_info_ = false;
373 }
TessResultRenderer(const char *outputbase, const char *extension)
Definition: renderer.cpp:33

Member Function Documentation

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

Implements tesseract::TessResultRenderer.

Definition at line 411 of file hocrrenderer.cpp.

411  {
412  const std::unique_ptr<const char[]> hocr(api->GetHOCRText(imagenum()));
413  if (hocr == nullptr) return false;
414 
415  AppendString(hocr.get());
416 
417  return true;
418 }
void AppendString(const char *s)
Definition: renderer.cpp:102
bool tesseract::TessHOcrRenderer::BeginDocumentHandler ( )
overrideprotectedvirtual

Reimplemented from tesseract::TessResultRenderer.

Definition at line 380 of file hocrrenderer.cpp.

380  {
381  AppendString(
382  "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
383  "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
384  " \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n"
385  "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" "
386  "lang=\"en\">\n <head>\n <title>");
387  AppendString(title());
388  AppendString(
389  "</title>\n"
390  " <meta http-equiv=\"Content-Type\" content=\"text/html;"
391  "charset=utf-8\"/>\n"
392  " <meta name='ocr-system' content='tesseract " PACKAGE_VERSION
393  "' />\n"
394  " <meta name='ocr-capabilities' content='ocr_page ocr_carea ocr_par"
395  " ocr_line ocrx_word ocrp_wconf");
396  if (font_info_) AppendString(" ocrp_lang ocrp_dir ocrp_font ocrp_fsize");
397  AppendString(
398  "'/>\n"
399  " </head>\n"
400  " <body>\n");
401 
402  return true;
403 }
void AppendString(const char *s)
Definition: renderer.cpp:102
const char * title() const
Definition: renderer.h:87
bool tesseract::TessHOcrRenderer::EndDocumentHandler ( )
overrideprotectedvirtual

Reimplemented from tesseract::TessResultRenderer.

Definition at line 405 of file hocrrenderer.cpp.

405  {
406  AppendString(" </body>\n</html>\n");
407 
408  return true;
409 }
void AppendString(const char *s)
Definition: renderer.cpp:102

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