File indexing completed on 2024-04-21 04:32:08

 /*
  * Copyright (C) 2010-2015 by Stephen Allewell
  * steve.allewell@gmail.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 "Layers.h"
 
 Layers::Layers()
     : m_currentLayer(-1)
 {
 }
 
 void Layers::clear()
 {
     m_layers.clear();
     m_currentLayer = -1;
 }
 
 const QList<Layer> &Layers::layers() const
 {
     return m_layers;
 }
 
 QStringList Layers::layerNames() const
 {
     QStringList namesList;
 
     QListIterator<Layer> iterator(m_layers);
 
     while (iterator.hasNext()) {
         namesList.append(iterator.next().name());
     }
 
     return namesList;
 }
 
 QList<int> Layers::layerNumbers() const
 {
     QList<int> numberList;
 
     QListIterator<Layer> iterator(m_layers);
 
     while (iterator.hasNext()) {
         numberList.append(iterator.next().number());
     }
 
     return numberList;
 }
 
 int Layers::currentLayer() const
 {
     return m_currentLayer;
 }
 
 void Layers::addLayer(int layer, const QString &name)
 {
     m_layers.append(Layer(layer, name));
 
     if (m_currentLayer == -1) {
         m_currentLayer = 0;
     }
 }
 
 void Layers::removeLayer(int number)
 {
     QMutableListIterator<Layer> iterator(m_layers);
 
     while (iterator.hasNext()) {
         if (iterator.next().number() == number) {
             iterator.remove();
         }
     }
 
     if (m_layers.count() == 0) {
         m_currentLayer = -1;
     }
 }
 
 void Layers::removeLayer(const QString &name)
 {
     QMutableListIterator<Layer> iterator(m_layers);
 
     while (iterator.hasNext()) {
         if (iterator.next().name() == name) {
             iterator.remove();
         }
     }
 
     if (m_layers.count() == 0) {
         m_currentLayer = -1;
     }
 }
 
 void Layers::setCurrentLayer(int layer)
 {
     if (m_layers.count() > 0) {
         m_currentLayer = layer;
     }
 }
 
 QDataStream &operator<<(QDataStream &stream, const Layers &layers)
 {
     stream << qint32(layers.version);
     stream << qint32(layers.m_currentLayer);
     stream << layers.m_layers;
 
     return stream;
 }
 
 QDataStream &operator>>(QDataStream &stream, Layers &layers)
 {
     qint32 version;
     qint32 currentLayer;
 
     stream >> version;
 
     switch (version) {
     case 100:
         stream >> currentLayer;
         layers.m_currentLayer = currentLayer;
         stream >> layers.m_layers;
         break;
 
     default:
         // not supported
         // throw exception
         break;
     }
 
     return stream;
 }