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#include "qtgradientmanager.h"

#include <QtGui/QPixmap>

#include <QtCore/QMetaEnum>

QT_BEGIN_NAMESPACE

QtGradientManager::QtGradientManager(QObject *parent)

    : QObject(parent)

{

}

QMap<QString, QGradient> QtGradientManager::gradients() const

{

    return m_idToGradient;

}

QString QtGradientManager::uniqueId(const QString &id) const

{

    if (!m_idToGradient.contains(id))

        return id;

    QString base = id;

    while (base.count() > 0 && base.at(base.count() - 1).isDigit())

        base = base.left(base.count() - 1);

    QString newId = base;

    int counter = 0;

    while (m_idToGradient.contains(newId)) {

        ++counter;

        newId = base + QString::number(counter);

    }

    return newId;

}

QString QtGradientManager::addGradient(const QString &id, const QGradient &gradient)

{

    QString newId = uniqueId(id);

    m_idToGradient[newId] = gradient;

    emit gradientAdded(newId, gradient);

    return newId;

}

void QtGradientManager::removeGradient(const QString &id)

{

    if (!m_idToGradient.contains(id))

        return;

    emit gradientRemoved(id);

    m_idToGradient.remove(id);

}

void QtGradientManager::renameGradient(const QString &id, const QString &newId)

{

    if (!m_idToGradient.contains(id))

        return;

    if (newId == id)

        return;

    QString changedId = uniqueId(newId);

    QGradient gradient = m_idToGradient.value(id);

    emit gradientRenamed(id, changedId);

    m_idToGradient.remove(id);

    m_idToGradient[changedId] = gradient;

}

void QtGradientManager::changeGradient(const QString &id, const QGradient &newGradient)

{

    if (!m_idToGradient.contains(id))

        return;

    if (m_idToGradient.value(id) == newGradient)

        return;

    emit gradientChanged(id, newGradient);

    m_idToGradient[id] = newGradient;

}

void QtGradientManager::clear()

{

    QMap<QString, QGradient> grads = gradients();

    QMapIterator<QString, QGradient> itGrad(grads);

    while (itGrad.hasNext()) {

        removeGradient(itGrad.next().key());

    }

}

QT_END_NAMESPACE