0cfed22ed4
Description: 由于仓库中的Tesseract不是最新版本导致产生了一个bug，因此将Tesseract源码集成到项目中 Log: no Change-Id: I088de95d6c6ab670406daa8d47ed2ed46929c2c0
59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
#ifndef TESSERACT_CCSTRUCT_DEBUGPIXA_H_
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#define TESSERACT_CCSTRUCT_DEBUGPIXA_H_
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#include "image.h"
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#include <allheaders.h>
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namespace tesseract {
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// Class to hold a Pixa collection of debug images with captions and save them
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// to a PDF file.
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class DebugPixa {
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public:
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// TODO(rays) add another constructor with size control.
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DebugPixa() {
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pixa_ = pixaCreate(0);
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#ifdef TESSERACT_DISABLE_DEBUG_FONTS
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fonts_ = NULL;
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#else
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fonts_ = bmfCreate(nullptr, 14);
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#endif
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}
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// If the filename_ has been set and there are any debug images, they are
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// written to the set filename_.
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~DebugPixa() {
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pixaDestroy(&pixa_);
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bmfDestroy(&fonts_);
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}
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// Adds the given pix to the set of pages in the PDF file, with the given
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// caption added to the top.
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void AddPix(const Image pix, const char *caption) {
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int depth = pixGetDepth(pix);
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int color = depth < 8 ? 1 : (depth > 8 ? 0x00ff0000 : 0x80);
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Image pix_debug =
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pixAddSingleTextblock(pix, fonts_, caption, color, L_ADD_BELOW, nullptr);
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pixaAddPix(pixa_, pix_debug, L_INSERT);
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}
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// Sets the destination filename and enables images to be written to a PDF
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// on destruction.
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void WritePDF(const char *filename) {
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if (pixaGetCount(pixa_) > 0) {
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pixaConvertToPdf(pixa_, 300, 1.0f, 0, 0, "AllDebugImages", filename);
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pixaClear(pixa_);
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}
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}
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private:
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// The collection of images to put in the PDF.
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Pixa *pixa_;
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// The fonts used to draw text captions.
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L_Bmf *fonts_;
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};
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} // namespace tesseract
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#endif // TESSERACT_CCSTRUCT_DEBUGPIXA_H_
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