File: main.cpp

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/***************************************************************************
                                main.cpp
                               ----------
    begin                : Sat May 28 2005
    copyright            : (C) 2005 by Michael Margraf
    email                : michael.margraf@alumni.tu-berlin.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <stdlib.h>

#include <qapplication.h>
#include <qstring.h>
#include <qtextcodec.h>
#include <qtranslator.h>
#include <qfile.h>
#include <qtextstream.h>
#include <qmessagebox.h>
#include <qdir.h>
#include <qfont.h>

#include "qucslib.h"

tQucsSettings QucsSettings;
QDir UserLibDir;

// Loads the settings file and stores the settings.
bool loadSettings()
{
  bool result = true;

  QFile file(QDir::homeDirPath()+QDir::convertSeparators ("/.qucs/librc"));
  if(!file.open(IO_ReadOnly))
    result = false; // settings file doesn't exist
  else {
    QTextStream stream(&file);
    QString Line, Setting;
    while(!stream.atEnd()) {
      Line = stream.readLine();
      Setting = Line.section('=',0,0);
      Line = Line.section('=',1,1);
      if(Setting == "Position") {
	QucsSettings.x = Line.section(",",0,0).toInt();
	QucsSettings.y = Line.section(",",1,1).toInt(); }
      else if(Setting == "Size") {
	QucsSettings.dx = Line.section(",",0,0).toInt();
	QucsSettings.dy = Line.section(",",1,1).toInt(); }
    }
    file.close();
  }

  file.setName(QDir::homeDirPath()+QDir::convertSeparators ("/.qucs/qucsrc"));
  if(!file.open(IO_ReadOnly))
    result = true; // qucs settings not necessary
  else {
    QTextStream stream(&file);
    QString Line, Setting;
    while(!stream.atEnd()) {
      Line = stream.readLine();
      Setting = Line.section('=',0,0);
      Line = Line.section('=',1,1).stripWhiteSpace();
      if(Setting == "Font")
	QucsSettings.font.fromString(Line);
      else if(Setting == "Language")
	QucsSettings.Language = Line;
    }
    file.close();
  }
  return result;
}

// Saves the settings in the settings file.
bool saveApplSettings(QucsLib *qucs)
{
  QFile file(QDir::homeDirPath()+QDir::convertSeparators ("/.qucs/librc"));
  if(!file.open(IO_WriteOnly)) {
    QMessageBox::warning(0, QObject::tr("Warning"),
			QObject::tr("Cannot save settings !"));
    return false;
  }

  QString Line;
  QTextStream stream(&file);

  stream << "Settings file, QucsLib " PACKAGE_VERSION "\n"
    << "Position=" << qucs->x() << "," << qucs->y() << "\n"
    << "Size=" << qucs->width() << "," << qucs->height() << "\n";

  file.close();
  return true;
}

// #########################################################################
// ##########                                                     ##########
// ##########                  Program Start                      ##########
// ##########                                                     ##########
// #########################################################################

int main(int argc, char *argv[])
{
  // apply default settings
  QucsSettings.x = 100;
  QucsSettings.y = 50;
  QucsSettings.dx = 600;
  QucsSettings.dy = 350;
  QucsSettings.font = QFont("Helvetica", 12);

  // is application relocated?
  char * var = getenv ("QUCSDIR");
  if (var != NULL) {
    QDir QucsDir = QDir (var);
    QString QucsDirStr = QucsDir.canonicalPath ();
    QucsSettings.BitmapDir =
      QDir::convertSeparators (QucsDirStr + "/share/qucs/bitmaps/");
    QucsSettings.LangDir =
      QDir::convertSeparators (QucsDirStr + "/share/qucs/lang/");
    QucsSettings.LibDir =
      QDir::convertSeparators (QucsDirStr + "/share/qucs/library/");
  } else {
    QucsSettings.BitmapDir = BITMAPDIR;
    QucsSettings.LangDir = LANGUAGEDIR;
    QucsSettings.LibDir = LIBRARYDIR;
  }
  UserLibDir.setPath (QDir::homeDirPath()+QDir::convertSeparators ("/.qucs/user_lib"));
  loadSettings();

  QApplication a(argc, argv);
  a.setFont(QucsSettings.font);

  QTranslator tor( 0 );
  QString lang = QucsSettings.Language;
  if(lang.isEmpty())
    lang = QTextCodec::locale();
  tor.load( QString("qucs_") + lang, QucsSettings.LangDir);
  a.installTranslator( &tor );

  QucsLib *qucs = new QucsLib();
  a.setMainWidget(qucs);
  qucs->resize(QucsSettings.dx, QucsSettings.dy); // size and position ...
  qucs->move(QucsSettings.x, QucsSettings.y);     // ... before "show" !!!
  qucs->show();

  int result = a.exec();
  saveApplSettings(qucs);
  delete qucs;
  return result;
}