/******************************************************************************

 *

 * 

 *

 *

 * 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"

        "If you installed Graphviz/dot after a previous failing run, \n"

        "try deleting the output directory and rerun doxygen.\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;

}