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pdfrenderer.cpp: Ignore non-text blocks #3959

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Nov 10, 2022
Merged

pdfrenderer.cpp: Ignore non-text blocks #3959

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7 changes: 7 additions & 0 deletions src/api/pdfrenderer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@

#include <allheaders.h>
#include <tesseract/baseapi.h>
#include <tesseract/publictypes.h> // for PTIsTextType()
#include <tesseract/renderer.h>
#include <cmath>
#include <cstring>
Expand Down Expand Up @@ -354,6 +355,12 @@ char *TessPDFRenderer::GetPDFTextObjects(TessBaseAPI *api, double width, double
const std::unique_ptr</*non-const*/ ResultIterator> res_it(api->GetIterator());
while (!res_it->Empty(RIL_BLOCK)) {
if (res_it->IsAtBeginningOf(RIL_BLOCK)) {
auto block_type = res_it->BlockType();
if (!PTIsTextType(block_type)) {
// ignore non-text blocks
res_it->Next(RIL_BLOCK);
continue;
}
pdf_str << "BT\n3 Tr"; // Begin text object, use invisible ink
old_fontsize = 0; // Every block will declare its fontsize
new_block = true; // Every block will declare its affine matrix
Expand Down