qgserror.h

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/***************************************************************************
                         qgserror.h  -  Error container
                             -------------------
    begin                : October 2012
    copyright            : (C) 2012 Radim Blazek
    email                : radim dot blazek at gmail dot com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
#ifndef QGSERROR_H
#define QGSERROR_H

#include <QString>
#include <QList>

// Macro to create Error message including info about where it was created.
#define QGS_ERROR_MESSAGE(message, tag) QgsErrorMessage(QString(message),QString(tag), QString(__FILE__), QString(__FUNCTION__), __LINE__)

class CORE_EXPORT QgsErrorMessage
{
  public:
    enum Format
    {
      Text, // Plain text
      Html
    };

    QgsErrorMessage() : mLine( 0 ), mFormat( Text ) {}

    QgsErrorMessage( const QString & theMessage, const QString & theTag = QString::null, const QString & theFile = QString::null, const QString & theFunction = QString::null, int theLine = 0 );

    QString message() const { return mMessage; }
    QString tag() const { return mTag; }
    QString file() const { return mFile; }
    QString function() const { return mFunction; }
    int line() const { return mLine; }

  private:
    QString mMessage;

    QString mTag;

    QString mFile;
    QString mFunction;
    int mLine;

    /* Message format */
    Format mFormat;
};

class CORE_EXPORT QgsError
{
  public:

    QgsError() {}

    QgsError( const QString & theMessage, const QString & theTag );

    void append( const QString & theMessage, const QString & theTag );

    void append( const QgsErrorMessage & theMessage );

    bool isEmpty() const { return mMessageList.isEmpty(); }

    QString message( QgsErrorMessage::Format theFormat = QgsErrorMessage::Html ) const;

    QString summary() const;

    void clear() { mMessageList.clear(); }

  private:
    QList<QgsErrorMessage> mMessageList;
};

#endif