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#include "qmlgraphicsscalegrid_p_p.h"

#include <qml.h>

#include <QBuffer>
#include <QDebug>

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

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

QmlGraphicsScaleGrid::~QmlGraphicsScaleGrid()
{
}

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

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

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

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

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

QmlGraphicsGridScaledImage::QmlGraphicsGridScaledImage()
: _l(-1), _r(-1), _t(-1), _b(-1),
  _h(QmlGraphicsBorderImage::Stretch), _v(QmlGraphicsBorderImage::Stretch)
{
}

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

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

QmlGraphicsGridScaledImage::QmlGraphicsGridScaledImage(QIODevice *data)
: _l(-1), _r(-1), _t(-1), _b(-1), _h(QmlGraphicsBorderImage::Stretch), _v(QmlGraphicsBorderImage::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(QLatin1Char('#')))
            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("border.left"))
            l = list[1].toInt();
        else if (list[0] == QLatin1String("border.right"))
            r = list[1].toInt();
        else if (list[0] == QLatin1String("border.top"))
            t = list[1].toInt();
        else if (list[0] == QLatin1String("border.bottom"))
            b = list[1].toInt();
        else if (list[0] == QLatin1String("source"))
            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;
}

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

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

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

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

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

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

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

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

QT_END_NAMESPACE