#include "venumproperty.h"
#include "vproperty_p.h"

#include <QComboBox>

using namespace VPE;

VEnumProperty::VEnumProperty(const QString& name)
    : VProperty(name, QVariant::Int)
{
    d_ptr->VariantValue = 0;
    d_ptr->VariantValue.convert(QVariant::Int);
}


//! Get the data how it should be displayed
QVariant VEnumProperty::data (int column, int role) const
{
    if(EnumerationLiterals.empty())
        return QVariant();

    int tmpIndex = d_ptr->VariantValue.toInt();

    if(tmpIndex < 0 || tmpIndex >= EnumerationLiterals.count())
        tmpIndex = 0;

    if(column == DPC_Data && Qt::DisplayRole == role)
        return EnumerationLiterals.at(tmpIndex);
    else if(column == DPC_Data && Qt::EditRole == role)
        return tmpIndex;
    else
        return VProperty::data(column, role);
}


//! Returns an editor widget, or NULL if it doesn't supply one
QWidget* VEnumProperty::createEditor(QWidget * parent, const QStyleOptionViewItem& options, const QAbstractItemDelegate* delegate)
{
    Q_UNUSED(options);
    Q_UNUSED(delegate);
    QComboBox* tmpEditor = new QComboBox(parent);
    tmpEditor->clear();
    tmpEditor->addItems(EnumerationLiterals);
    tmpEditor->setCurrentIndex(d_ptr->VariantValue.toInt());

    return tmpEditor;
}

//! Gets the data from the widget
QVariant VEnumProperty::getEditorData(QWidget* editor) const
{
    QComboBox* tmpEditor = qobject_cast<QComboBox*>(editor);
    if(tmpEditor)
        return tmpEditor->currentIndex();

    return QVariant(0);
}

//! Sets the enumeration literals
void VEnumProperty::setLiterals(const QStringList& literals)
{
    EnumerationLiterals = literals;
}

//! Get the settings. This function has to be implemented in a subclass in order to have an effect
QStringList VEnumProperty::getLiterals() const
{
    return EnumerationLiterals;
}

//! Sets the value of the property
void VEnumProperty::setValue(const QVariant& value)
{
    int tmpIndex = value.toInt();

    if(tmpIndex < 0 || tmpIndex >= EnumerationLiterals.count())
        tmpIndex = 0;

    d_ptr->VariantValue.setValue(tmpIndex);
}

QString VEnumProperty::type() const
{
    return "enum";
}

VProperty* VEnumProperty::clone(bool include_children, VProperty* container) const
{
    return VProperty::clone(include_children, container ? container : new VEnumProperty(getName()));
}

void VEnumProperty::setSetting(const QString& key, const QVariant& value)
{
    if(key == "literals")
        setLiterals(value.toString().split(";;"));
}

QVariant VEnumProperty::getSetting(const QString& key) const
{
    if(key == "literals")
        return getLiterals().join(";;");
    else
        return VProperty::getSetting(key);
}

QStringList VEnumProperty::getSettingKeys() const
{
    return QStringList("literals");
}