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#include <QBuffer>
#include <qml.h>
#include <QDebug>
#include "qfxscalegrid_p.h"


QT_BEGIN_NAMESPACE
/*!
    \internal
    \class QFxScaleGrid
    \brief The QFxScaleGrid class allows you to specify a 3x3 grid to use in scaling an image.
*/
QML_DEFINE_NOCREATE_TYPE(QFxScaleGrid)

QFxScaleGrid::QFxScaleGrid(QObject *parent) : QObject(parent), _left(0), _top(0), _right(0), _bottom(0)
{
}

QFxScaleGrid::~QFxScaleGrid()
{
}

bool QFxScaleGrid::isNull() const
{
    return !_left && !_top && !_right && !_bottom;
}

void QFxScaleGrid::setLeft(int pos)
{
    if (_left != pos) {
        _left = pos;
        emit borderChanged();
    }
}

void QFxScaleGrid::setTop(int pos)
{
    if (_top != pos) {
        _top = pos;
        emit borderChanged();
    }
}

void QFxScaleGrid::setRight(int pos)
{
    if (_right != pos) {
        _right = pos;
        emit borderChanged();
    }
}

void QFxScaleGrid::setBottom(int pos)
{
    if (_bottom != pos) {
        _bottom = pos;
        emit borderChanged();
    }
}

QFxGridScaledImage::QFxGridScaledImage()
: _l(-1), _r(-1), _t(-1), _b(-1),
  _h(QFxBorderImage::Stretch), _v(QFxBorderImage::Stretch)
{
}

QFxGridScaledImage::QFxGridScaledImage(const QFxGridScaledImage &o)
: _l(o._l), _r(o._r), _t(o._t), _b(o._b), _h(o._h), _v(o._v), _pix(o._pix)
{
}

QFxGridScaledImage &QFxGridScaledImage::operator=(const QFxGridScaledImage &o)
{
    _l = o._l;
    _r = o._r;
    _t = o._t;
    _b = o._b;
    _h = o._h;
    _v = o._v;
    _pix = o._pix;
    return *this;
}

QFxGridScaledImage::QFxGridScaledImage(QIODevice *data)
: _l(-1), _r(-1), _t(-1), _b(-1), _h(QFxBorderImage::Stretch), _v(QFxBorderImage::Stretch)
{
    int l = -1;
    int r = -1;
    int t = -1;
    int b = -1;
    QString imgFile;

    while(!data->atEnd()) {
        QString line = QString::fromUtf8(data->readLine().trimmed());
        if (line.isEmpty() || line.startsWith(QLatin1String("#")))
            continue;

        QStringList list = line.split(QLatin1Char(':'));
        if (list.count() != 2)
            return;

        list[0] = list[0].trimmed();
        list[1] = list[1].trimmed();

        if (list[0] == QLatin1String("gridLeft"))
            l = list[1].toInt();
        else if (list[0] == QLatin1String("gridRight"))
            r = list[1].toInt();
        else if (list[0] == QLatin1String("gridTop"))
            t = list[1].toInt();
        else if (list[0] == QLatin1String("gridBottom"))
            b = list[1].toInt();
        else if (list[0] == QLatin1String("imageFile"))
            imgFile = list[1];
        else if (list[0] == QLatin1String("horizontalTileRule"))
            _h = stringToRule(list[1]);
        else if (list[0] == QLatin1String("verticalTileRule"))
            _v = stringToRule(list[1]);
    }

    if (l < 0 || r < 0 || t < 0 || b < 0 || imgFile.isEmpty())
        return;

    _l = l; _r = r; _t = t; _b = b;

    _pix = imgFile;
}

QFxBorderImage::TileMode QFxGridScaledImage::stringToRule(const QString &s)
{
    if (s == QLatin1String("Stretch"))
        return QFxBorderImage::Stretch;
    if (s == QLatin1String("Repeat"))
        return QFxBorderImage::Repeat;
    if (s == QLatin1String("Round"))
        return QFxBorderImage::Round;

    qWarning() << "Unknown tile rule specified. Using Stretch";
    return QFxBorderImage::Stretch;
}

bool QFxGridScaledImage::isValid() const
{
    return _l >= 0;
}

int QFxGridScaledImage::gridLeft() const
{
    return _l;
}

int QFxGridScaledImage::gridRight() const
{
    return _r;
}

int QFxGridScaledImage::gridTop() const
{
    return _t;
}

int QFxGridScaledImage::gridBottom() const
{
    return _b;
}

QString QFxGridScaledImage::pixmapUrl() const
{
    return _pix;
}

QT_END_NAMESPACE