Attachment 117147 Details for Bug 89941 – Adds -bbox-layout command with man page update

[patch] Adds -bbox-layout command with man page update

0001-pdftotext-Add-bbox-layout-option.patch (text/plain), 7.32 KB, created by Jeremy Echols on 2015-07-15 19:54:10 UTC

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Creator: Jeremy Echols

Created: 2015-07-15 19:54:10 UTC

Size: 7.32 KB

patch

obsolete

>From e682c9529f5d735ec098b4936a7e0f9e7ddd10e9 Mon Sep 17 00:00:00 2001
>From: Jeremy Echols <jechols@uoregon.edu>
>Date: Wed, 15 Jul 2015 12:41:55 -0700
>Subject: [PATCH] pdftotext: Add -bbox-layout option
>
>Adds layout information for blocks and lines in addition to words
>---
> utils/pdftotext.1  |   4 ++
> utils/pdftotext.cc | 114 +++++++++++++++++++++++++++++++++++++++++++----------
> 2 files changed, 98 insertions(+), 20 deletions(-)
>
>diff --git a/utils/pdftotext.1 b/utils/pdftotext.1
>index 0199b03..b53f82f 100644
>--- a/utils/pdftotext.1
>+++ b/utils/pdftotext.1
>@@ -71,6 +71,10 @@ headers.
> Generate an XHTML file containing bounding box information for each
> word in the file.
> .TP
>+.B \-bbox-layout
>+Generate an XHTML file containing bounding box information for each
>+block, line, and word in the file.
>+.TP
> .BI \-enc " encoding-name"
> Sets the encoding to use for text output. This defaults to "UTF-8".
> .TP
>diff --git a/utils/pdftotext.cc b/utils/pdftotext.cc
>index 15c741d..c76d5a9 100644
>--- a/utils/pdftotext.cc
>+++ b/utils/pdftotext.cc
>@@ -56,10 +56,14 @@
> #include "PDFDocEncoding.h"
> #include "Error.h"
> #include <string>
>+#include <sstream>
>+#include <iomanip>
> 
> static void printInfoString(FILE *f, Dict *infoDict, const char *key,
> 			    const char *text1, const char *text2, UnicodeMap *uMap);
> static void printInfoDate(FILE *f, Dict *infoDict, const char *key, const char *fmt);
>+void printDocBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last);
>+void printWordBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last);
> 
> static int firstPage = 1;
> static int lastPage = 0;
>@@ -69,6 +73,7 @@ static int y = 0;
> static int w = 0;
> static int h = 0;
> static GBool bbox = gFalse;
>+static GBool bboxLayout = gFalse;
> static GBool physLayout = gFalse;
> static double fixedPitch = 0;
> static GBool rawOrder = gFalse;
>@@ -116,6 +121,8 @@ static const ArgDesc argDesc[] = {
>    "don't insert page breaks between pages"},
>   {"-bbox", argFlag,     &bbox,  0,
>    "output bounding box for each word and page size to html.  Sets -htmlmeta"},
>+  {"-bbox-layout", argFlag,     &bboxLayout,  0,
>+   "like -bbox but with extra layout bounding box data.  Sets -htmlmeta"},
>   {"-opw",     argString,   ownerPassword,  sizeof(ownerPassword),
>    "owner password (for encrypted files)"},
>   {"-upw",     argString,   userPassword,   sizeof(userPassword),
>@@ -176,6 +183,9 @@ int main(int argc, char *argv[]) {
> 
>   // parse args
>   ok = parseArgs(argDesc, &argc, argv);
>+  if (bboxLayout) {
>+    bbox = gTrue;
>+  }
>   if (bbox) {
>     htmlMeta = gTrue;
>   }
>@@ -352,27 +362,12 @@ int main(int argc, char *argv[]) {
>     textOut = new TextOutputDev(NULL, physLayout, fixedPitch, rawOrder, htmlMeta);
> 
>     if (textOut->isOk()) {
>-      fprintf(f, "<doc>\n");
>-      for (int page = firstPage; page <= lastPage; ++page) {
>-        fprintf(f, "  <page width=\"%f\" height=\"%f\">\n",doc->getPageMediaWidth(page), doc->getPageMediaHeight(page));
>-        doc->displayPage(textOut, page, resolution, resolution, 0, gTrue, gFalse, gFalse);
>-        TextWordList *wordlist = textOut->makeWordList();
>-        const int word_length = wordlist != NULL ? wordlist->getLength() : 0;
>-        TextWord *word;
>-        double xMinA, yMinA, xMaxA, yMaxA;
>-        if (word_length == 0)
>-          fprintf(stderr, "no word list\n");
>-
>-        for (int i = 0; i < word_length; ++i) {
>-          word = wordlist->get(i);
>-          word->getBBox(&xMinA, &yMinA, &xMaxA, &yMaxA);
>-          const std::string myString = myXmlTokenReplace(word->getText()->getCString());
>-          fprintf(f,"    <word xMin=\"%f\" yMin=\"%f\" xMax=\"%f\" yMax=\"%f\">%s</word>\n", xMinA, yMinA, xMaxA, yMaxA, myString.c_str());
>-        }
>-        fprintf(f, "  </page>\n");
>-        delete wordlist;
>+      if (bboxLayout) {
>+        printDocBBox(f, doc, textOut, firstPage, lastPage);
>+      }
>+      else {
>+        printWordBBox(f, doc, textOut, firstPage, lastPage);
>       }
>-      fprintf(f, "</doc>\n");
>     }
>     if (f != stdout) {
>       fclose(f);
>@@ -492,3 +487,82 @@ static void printInfoDate(FILE *f, Dict *infoDict, const char *key, const char *
>   }
>   obj.free();
> }
>+
>+void printLine(FILE *f, TextLine *line) {
>+  double xMin, yMin, xMax, yMax;
>+  double lineXMin = 0, lineYMin = 0, lineXMax = 0, lineYMax = 0;
>+  TextWord *word;
>+  std::stringstream wordXML;
>+  wordXML << std::fixed << std::setprecision(6);
>+
>+  for (word = line->getWords(); word; word = word->getNext()) {
>+    word->getBBox(&xMin, &yMin, &xMax, &yMax);
>+
>+    if (lineXMin == 0 || lineXMin > xMin) lineXMin = xMin;
>+    if (lineYMin == 0 || lineYMin > yMin) lineYMin = yMin;
>+    if (lineXMax < xMax) lineXMax = xMax;
>+    if (lineYMax < yMax) lineYMax = yMax;
>+
>+    const std::string myString = myXmlTokenReplace(word->getText()->getCString());
>+    wordXML << "          <word xMin=\"" << xMin << "\" yMin=\"" << yMin << "\" xMax=\"" <<
>+            xMax << "\" yMax=\"" << yMax << "\">" << myString << "</word>\n";
>+  }
>+  fprintf(f, "        <line xMin=\"%f\" yMin=\"%f\" xMax=\"%f\" yMax=\"%f\">\n",
>+          lineXMin, lineYMin, lineXMax, lineYMax);
>+  fprintf(f, wordXML.str().c_str());
>+  fprintf(f, "        </line>\n");
>+}
>+
>+void printDocBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last) {
>+  double xMin, yMin, xMax, yMax;
>+  TextPage *textPage;
>+  TextFlow *flow;
>+  TextBlock *blk;
>+  TextLine *line;
>+
>+  fprintf(f, "<doc>\n");
>+  for (int page = first; page <= last; ++page) {
>+    fprintf(f, "  <page width=\"%f\" height=\"%f\">\n",doc->getPageMediaWidth(page), doc->getPageMediaHeight(page));
>+    doc->displayPage(textOut, page, resolution, resolution, 0, gTrue, gFalse, gFalse);
>+    textPage = textOut->takeText();
>+    for (flow = textPage->getFlows(); flow; flow = flow->getNext()) {
>+      fprintf(f, "    <flow>\n");
>+      for (blk = flow->getBlocks(); blk; blk = blk->getNext()) {
>+        blk->getBBox(&xMin, &yMin, &xMax, &yMax);
>+        fprintf(f, "      <block xMin=\"%f\" yMin=\"%f\" xMax=\"%f\" yMax=\"%f\">\n", xMin, yMin, xMax, yMax);
>+        for (line = blk->getLines(); line; line = line->getNext()) {
>+          printLine(f, line);
>+        }
>+        fprintf(f, "      </block>\n");
>+      }
>+      fprintf(f, "    </flow>\n");
>+    }
>+    fprintf(f, "  </page>\n");
>+    textPage->decRefCnt();
>+  }
>+  fprintf(f, "</doc>\n");
>+}
>+
>+void printWordBBox(FILE *f, PDFDoc *doc, TextOutputDev *textOut, int first, int last) {
>+  fprintf(f, "<doc>\n");
>+  for (int page = first; page <= last; ++page) {
>+    fprintf(f, "  <page width=\"%f\" height=\"%f\">\n",doc->getPageMediaWidth(page), doc->getPageMediaHeight(page));
>+    doc->displayPage(textOut, page, resolution, resolution, 0, gTrue, gFalse, gFalse);
>+    TextWordList *wordlist = textOut->makeWordList();
>+    const int word_length = wordlist != NULL ? wordlist->getLength() : 0;
>+    TextWord *word;
>+    double xMinA, yMinA, xMaxA, yMaxA;
>+    if (word_length == 0)
>+      fprintf(stderr, "no word list\n");
>+
>+    for (int i = 0; i < word_length; ++i) {
>+      word = wordlist->get(i);
>+      word->getBBox(&xMinA, &yMinA, &xMaxA, &yMaxA);
>+      const std::string myString = myXmlTokenReplace(word->getText()->getCString());
>+      fprintf(f,"    <word xMin=\"%f\" yMin=\"%f\" xMax=\"%f\" yMax=\"%f\">%s</word>\n", xMinA, yMinA, xMaxA, yMaxA, myString.c_str());
>+    }
>+    fprintf(f, "  </page>\n");
>+    delete wordlist;
>+  }
>+  fprintf(f, "</doc>\n");
>+}
>-- 
>1.8.3.1
>

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Attachments on bug 89941: 114932 | 117147 | 117280

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