qgsprocessingrecentalgorithmlog.cpp

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/***************************************************************************
                             qgsprocessingrecentalgorithmlog.cpp
                             ------------------------------------
    Date                 : July 2018
    Copyright            : (C) 2018 Nyall Dawson
    Email                : nyall dot dawson 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.                                   *
 *                                                                         *
 ***************************************************************************/

#include "qgsprocessingrecentalgorithmlog.h"
#include "qgssettings.h"


const int MAX_LOG_LENGTH = 5;

QgsProcessingRecentAlgorithmLog::QgsProcessingRecentAlgorithmLog( QObject *parent )
  : QObject( parent )
{
  QgsSettings settings;
  mRecentAlgorithmIds = settings.value( QStringLiteral( "processing/recentAlgorithms" ), QVariant(), QgsSettings::Gui ).toStringList();
}

QStringList QgsProcessingRecentAlgorithmLog::recentAlgorithmIds() const
{
  return mRecentAlgorithmIds;
}

void QgsProcessingRecentAlgorithmLog::push( const QString &id )
{
  const QStringList previous = mRecentAlgorithmIds;
  mRecentAlgorithmIds.removeAll( id );
  mRecentAlgorithmIds.insert( 0, id );
  if ( mRecentAlgorithmIds.length() > MAX_LOG_LENGTH )
    mRecentAlgorithmIds = mRecentAlgorithmIds.mid( 0, MAX_LOG_LENGTH );

  QgsSettings settings;
  settings.setValue( QStringLiteral( "processing/recentAlgorithms" ), mRecentAlgorithmIds, QgsSettings::Gui );

  if ( previous != mRecentAlgorithmIds )
    emit changed();
}