msc.cpp

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/******************************************************************************
 *
 * $Id: msc.cpp,v 1.14 2001/03/19 19:27:40 root Exp $
 *
 * Copyright (C) 1997-2008 by Dimitri van Heesch.
 *
 * Permission to use, copy, modify, and distribute this software and its
 * documentation under the terms of the GNU General Public License is hereby 
 * granted. No representations are made about the suitability of this software 
 * for any purpose. It is provided "as is" without express or implied warranty.
 * See the GNU General Public License for more details.
 *
 * Documents produced by Doxygen are derivative works derived from the
 * input used in their production; they are not affected by this license.
 *
 */

#include "msc.h"
#include "portable.h"
#include "config.h"
#include "message.h"
#include "docparser.h"
#include "doxygen.h"

#include <qdir.h>

static const int maxCmdLine = 40960;

static bool convertMapFile(QTextStream &t,const char *mapName,const QCString relPath,
                           const QString &context)
{
  QFile f(mapName);
  if (!f.open(IO_ReadOnly))
  {
    err("Error opening map file %s for inclusion in the docs!\n",mapName);
    return FALSE;
  }
  const int maxLineLen=1024;
  char buf[maxLineLen];
  char url[maxLineLen];
  char ref[maxLineLen];
  int x1,y1,x2,y2;
  while (!f.atEnd())
  {
    bool isRef = FALSE;
    int numBytes = f.readLine(buf,maxLineLen);
    buf[numBytes-1]='\0';
    //printf("ReadLine `%s'\n",buf);
    if (strncmp(buf,"rect",4)==0)
    {
      // obtain the url and the coordinates in the order used by graphviz-1.5
      sscanf(buf,"rect %s %d,%d %d,%d",url,&x1,&y1,&x2,&y2);

      if ( strcmp(url,"\\ref") == 0 )
      {
        isRef = TRUE;
        sscanf(buf,"rect %s %s %d,%d %d,%d",ref,url,&x1,&y1,&x2,&y2);
      }

      // sanity checks
      if (y2<y1) { int temp=y2; y2=y1; y1=temp; }
      if (x2<x1) { int temp=x2; x2=x1; x1=temp; }

      t << "<area href=\"";

      if ( isRef )
      {
        // handle doxygen \ref tag URL reference
        QCString *dest;
        DocRef *df = new DocRef( (DocNode*) 0, url, context );
        if (!df->ref().isEmpty())
        {
          if ((dest=Doxygen::tagDestinationDict[df->ref()])) t << *dest << "/";
        }
        if (!df->file().isEmpty()) t << relPath << df->file() << Doxygen::htmlFileExtension;
        if (!df->anchor().isEmpty()) t << "#" << df->anchor();
      }
      else
      {
        t << url;
      }
      t << "\" shape=\"rect\" coords=\""
        << x1 << "," << y1 << "," << x2 << "," << y2 << "\""
        << " alt=\"\">" << endl;
    }
  }

  return TRUE;
}
void writeMscGraphFromFile(const char *inFile,const char *outDir,
                           const char *outFile,MscOutputFormat format)
{
  QCString absOutFile = outDir;
  absOutFile+=portable_pathSeparator();
  absOutFile+=outFile;

  // chdir to the output dir, so dot can find the font file.
  QCString oldDir = convertToQCString(QDir::currentDirPath());
  // go to the html output directory (i.e. path)
  QDir::setCurrent(outDir);
  //printf("Going to dir %s\n",QDir::currentDirPath().data());
  QCString mscExe = Config_getString("MSCGEN_PATH")+"mscgen"+portable_commandExtension();
  QCString mscArgs;
  QCString extension;
  if (format==MSC_BITMAP)
  {
    mscArgs+="-T png";
    extension=".png";
  }
  else if (format==MSC_EPS)
  {
    mscArgs+="-T eps";
    extension=".eps";
  }
  mscArgs+=" -i \"";
  mscArgs+=inFile;
  mscArgs+=".msc\" -o \"";
  mscArgs+=outFile;
  mscArgs+=extension+"\"";
  int exitCode;
  //printf("*** running: %s %s\n",mscExe.data(),mscArgs.data());
  if ((exitCode=portable_system(mscExe,mscArgs,FALSE))!=0)
  {
    goto error;
  }
  if ( (format==MSC_EPS) && (Config_getBool("USE_PDFLATEX")) )
  {
    QCString epstopdfArgs(maxCmdLine);
    epstopdfArgs.sprintf("\"%s.eps\" --outfile=\"%s.pdf\"",
                         outFile,outFile);
    if (portable_system("epstopdf",epstopdfArgs)!=0)
    {
      err("Error: Problems running epstopdf. Check your TeX installation!\n");
    }
  }

error:
  QDir::setCurrent(oldDir);
}

QString getMscImageMapFromFile(const QString& inFile, const QString& outDir,
                               const QCString& relPath,const QString& context)
{
  QString outFile = inFile + ".map";

  // chdir to the output dir, so dot can find the font file.
  QCString oldDir = convertToQCString(QDir::currentDirPath());
  // go to the html output directory (i.e. path)
  QDir::setCurrent(outDir);
  //printf("Going to dir %s\n",QDir::currentDirPath().data());

  QCString mscExe = Config_getString("MSCGEN_PATH")+"mscgen"+portable_commandExtension();
  QCString mscArgs = "-T ismap -i \"";
  mscArgs+=inFile + ".msc\" -o \"";
  mscArgs+=outFile + "\"";

  int exitCode;
  if ((exitCode=portable_system(mscExe,mscArgs,FALSE))!=0)
  {
    QDir::setCurrent(oldDir);
    return "";
  }
  
  QString result;
  QTextOStream tmpout(&result);
  convertMapFile(tmpout, outFile, relPath, context);
  QDir().remove(outFile);

  QDir::setCurrent(oldDir);
  return result;
}

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