#include "baseformlayer.h"

#include <QInputDialog>

BaseFormLayer::BaseFormLayer(QWidget* parent, Layers* layers) : BaseForm(parent, false, true)
{
    _layers_original = NULL;
    _layers_modified = NULL;
    if (layers)
    {
        setLayers(layers);
    }
}

BaseFormLayer::~BaseFormLayer()
{
    if (_layers_modified)
    {
        layersDelete(_layers_modified);
    }
}

void BaseFormLayer::revertConfig()
{
    if (_layers_original && _layers_modified)
    {
        layersCopy(_layers_original, _layers_modified);
        layerSelectedEvent(currentLayer());
    }
    
    BaseForm::revertConfig();
}

void BaseFormLayer::applyConfig()
{
    if (_layers_original && _layers_modified)
    {
        layersCopy(_layers_modified, _layers_original);
    }
    
    BaseForm::applyConfig();
}

void BaseFormLayer::setLayers(Layers* layers)
{
    _layers_original = layers;
    if (_layers_modified)
    {
        layersDelete(_layers_modified);
    }
    _layers_modified = layersCreateCopy(_layers_original);
    revertConfig();
}

void BaseFormLayer::afterLayerAdded(void*)
{
}

void BaseFormLayer::configChangeEvent()
{
    if (_layers_modified)
    {
        layerApply(layersGetLayer(_layers_modified, currentLayer()));
        layersValidate(_layers_modified);
    }
    
    BaseForm::configChangeEvent();
}

QStringList BaseFormLayer::getLayers()
{
    QStringList result;
    
    if (_layers_modified)
    {
        for (int i = 0; i < layersCount(_layers_modified); i++)
        {
            result << QString::fromUtf8(layersGetName(_layers_modified, i));
        }
    }
    
    return result;
}

void BaseFormLayer::layerAddedEvent()
{
    if (_layers_modified)
    {
        QString layer_name = QInputDialog::getText(this, tr("Create layer"), tr("Layer name :"), QLineEdit::Normal, tr("Unnamed layer"));
        if (not layer_name.isEmpty())
        {
            int layer = layersAddLayer(_layers_modified, NULL);
            if (layer >= 0)
            {
                layersSetName(_layers_modified, layer, layer_name.toUtf8().data());

                BaseForm::layerAddedEvent();

                afterLayerAdded(layersGetLayer(_layers_modified, layer));
            }
        }
    }
}

void BaseFormLayer::layerDeletedEvent(int layer)
{
    if (_layers_modified)
    {
        layersDeleteLayer(_layers_modified, layer);
    }
    
    BaseForm::layerDeletedEvent(layer);
}

void BaseFormLayer::layerMovedEvent(int layer, int new_position)
{
    if (_layers_modified)
    {
        layersMove(_layers_modified, layer, new_position);
    }
    
    BaseForm::layerMovedEvent(layer, new_position);
}

void BaseFormLayer::layerRenamedEvent(int layer, QString new_name)
{
    if (_layers_modified)
    {
        layersSetName(_layers_modified, layer, new_name.toUtf8().data());
    }
    
    BaseForm::layerRenamedEvent(layer, new_name);
}

void BaseFormLayer::layerSelectedEvent(int layer)
{
    if (_layers_modified)
    {
        layerGetCopy(layersGetLayer(_layers_modified, layer));
    }
    
    BaseForm::layerSelectedEvent(layer);
}