#include "checkable_internal.h"
#include <QPainter>
#include <QPixmap>
#include <QGraphicsColorizeEffect>
#include <QDebug>

CheckableIcon::CheckableIcon(const QIcon &icon, QWidget *parent)
    : QWidget(parent),
      _effect(new QGraphicsColorizeEffect),
      _icon(icon),
      _iconSize(24),
      _opacity(1.0)
{
    setAttribute(Qt::WA_TransparentForMouseEvents);

    //setGraphicsEffect(_effect);
}

CheckableIcon::~CheckableIcon()
{
}

void CheckableIcon::setColor(const QColor &color)
{
    if (_effect->color() == color)
        return;

    _effect->setColor(color);
    update();
}

QColor CheckableIcon::color() const
{
    return _effect->color();
}

void CheckableIcon::setIconSize(qreal size)
{
    _iconSize = size;
    update();
}

qreal CheckableIcon::iconSize() const
{
    return _iconSize;
}

void CheckableIcon::setOpacity(qreal opacity)
{
    _opacity = opacity;
    update();
}

qreal CheckableIcon::opacity() const
{
    return _opacity;
}

void CheckableIcon::paintEvent(QPaintEvent *event)
{
    Q_UNUSED(event)

#ifdef DEBUG_LAYOUT
    QPainter debug(this);
    debug.drawRect(rect().adjusted(0, 0, -1, -1));
#endif

    if (0 == _iconSize)
        return;

    QPainter painter(this);
    painter.setRenderHint(QPainter::Antialiasing);
    painter.setOpacity(_opacity);

    const qreal p = static_cast<qreal>((height())-_iconSize)/2;

    QPixmap pixmap = icon().pixmap(24, 24);

    if (!pixmap.isNull())
    {
        QPainter icon(&pixmap);
        icon.setCompositionMode(QPainter::CompositionMode_SourceIn);
        icon.fillRect(pixmap.rect(), _effect->color());

        const qreal z = _iconSize/24;
        //qDebug() << p;

        QTransform t;
        t.translate(p+width()-42, p);
        //t.translate(p, p);
        t.scale(z, z);
        painter.setTransform(t);

        //painter.drawPixmap(0, 0, pixmap);
        //QPixmap pm = pixmap.scaled(_iconSize, _iconSize,
        //                           Qt::IgnoreAspectRatio,
        //                           Qt::SmoothTransformation);
        //painter.drawPixmap(static_cast<qreal>(24-pm.width())/2,
        //                   static_cast<qreal>(24-pm.height())/2,
        //                   pm);

        //painter.drawPixmap(0, 0, pixmap);
        painter.drawPixmap(0, 0, pixmap);
    }


    //const qreal p = static_cast<qreal>((height())-_iconSize)/2;
    //const qreal z = _iconSize/24;

    //QTransform t;
    //t.translate(p, p);
    //t.scale(z, z);
    //painter.setTransform(t);

    //_icon.paint(&painter, QRect(0, 0, 24, 24));
}