tesseract 4.1.1
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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)
 
virtual bool BeginDocumentHandler ()
 
virtual bool AddImageHandler (TessBaseAPI *api)=0
 
virtual bool EndDocumentHandler ()
 
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 167 of file renderer.h.

Constructor & Destructor Documentation

◆ TessHOcrRenderer() [1/2]

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

Definition at line 379 of file hocrrenderer.cpp.

380 : TessResultRenderer(outputbase, "hocr") {
381 font_info_ = font_info;
382}
struct TessResultRenderer TessResultRenderer
Definition: capi.h:87

◆ TessHOcrRenderer() [2/2]

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

Definition at line 374 of file hocrrenderer.cpp.

375 : TessResultRenderer(outputbase, "hocr") {
376 font_info_ = false;
377}

Member Function Documentation

◆ AddImageHandler()

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

Implements tesseract::TessResultRenderer.

Definition at line 415 of file hocrrenderer.cpp.

415 {
416 const std::unique_ptr<const char[]> hocr(api->GetHOCRText(imagenum()));
417 if (hocr == nullptr) return false;
418
419 AppendString(hocr.get());
420
421 return true;
422}
void AppendString(const char *s)
Definition: renderer.cpp:102

◆ BeginDocumentHandler()

bool tesseract::TessHOcrRenderer::BeginDocumentHandler ( )
overrideprotectedvirtual

Reimplemented from tesseract::TessResultRenderer.

Definition at line 384 of file hocrrenderer.cpp.

384 {
386 "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
387 "<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\n"
388 " \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n"
389 "<html xmlns=\"http://www.w3.org/1999/xhtml\" xml:lang=\"en\" "
390 "lang=\"en\">\n <head>\n <title>");
393 "</title>\n"
394 " <meta http-equiv=\"Content-Type\" content=\"text/html;"
395 "charset=utf-8\"/>\n"
396 " <meta name='ocr-system' content='tesseract " PACKAGE_VERSION
397 "' />\n"
398 " <meta name='ocr-capabilities' content='ocr_page ocr_carea ocr_par"
399 " ocr_line ocrx_word ocrp_wconf");
400 if (font_info_) AppendString(" ocrp_lang ocrp_dir ocrp_font ocrp_fsize");
402 "'/>\n"
403 " </head>\n"
404 " <body>\n");
405
406 return true;
407}
const char * title() const
Definition: renderer.h:88

◆ EndDocumentHandler()

bool tesseract::TessHOcrRenderer::EndDocumentHandler ( )
overrideprotectedvirtual

Reimplemented from tesseract::TessResultRenderer.

Definition at line 409 of file hocrrenderer.cpp.

409 {
410 AppendString(" </body>\n</html>\n");
411
412 return true;
413}

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