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****************************************************************************/

#include "chip.h"

#include <QtGui>

Chip::Chip(const QColor &color, int x, int y)

{

    this->x = x;

    this->y = y;

    this->color = color;

    setZValue((x + y) % 2);

    setFlags(ItemIsSelectable | ItemIsMovable);

    setAcceptsHoverEvents(true);

}

QRectF Chip::boundingRect() const

{

    return QRectF(0, 0, 110, 70);

}

QPainterPath Chip::shape() const

{

    QPainterPath path;

    path.addRect(14, 14, 82, 42);

    return path;

}

void Chip::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)

{

    Q_UNUSED(widget);

    QColor fillColor = (option->state & QStyle::State_Selected) ? color.dark(150) : color;

    if (option->state & QStyle::State_MouseOver)

        fillColor = fillColor.light(125);

    const qreal lod = option->levelOfDetailFromTransform(painter->worldTransform());

    if (lod < 0.2) {

        if (lod < 0.125) {

            painter->fillRect(QRectF(0, 0, 110, 70), fillColor);

            return;

        }

        QBrush b = painter->brush();

        painter->setBrush(fillColor);

        painter->drawRect(13, 13, 97, 57);

        painter->setBrush(b);

        return;

    }

    QPen oldPen = painter->pen();

    QPen pen = oldPen;

    int width = 0;

    if (option->state & QStyle::State_Selected)

        width += 2;

    pen.setWidth(width);

    QBrush b = painter->brush();

    painter->setBrush(QBrush(fillColor.dark(option->state & QStyle::State_Sunken ? 120 : 100)));

    painter->drawRect(QRect(14, 14, 79, 39));

    painter->setBrush(b);

    if (lod >= 1) {

        painter->setPen(QPen(Qt::gray, 1));

        painter->drawLine(15, 54, 94, 54);

        painter->drawLine(94, 53, 94, 15);

        painter->setPen(QPen(Qt::black, 0));

    }

    // Draw text

    if (lod >= 2) {

        QFont font("Times", 10);

        font.setStyleStrategy(QFont::ForceOutline);

        painter->setFont(font);

        painter->save();

        painter->scale(0.1, 0.1);

        painter->drawText(170, 180, QString("Model: VSC-2000 (Very Small Chip) at %1x%2").arg(x).arg(y));

        painter->drawText(170, 200, QString("Serial number: DLWR-WEER-123L-ZZ33-SDSJ"));

        painter->drawText(170, 220, QString("Manufacturer: Chip Manufacturer"));

        painter->restore();

    }

    // Draw lines

    QVarLengthArray<QLineF, 36> lines;

    if (lod >= 0.5) {

        for (int i = 0; i <= 10; i += (lod > 0.5 ? 1 : 2)) {

            lines.append(QLineF(18 + 7 * i, 13, 18 + 7 * i, 5));

            lines.append(QLineF(18 + 7 * i, 54, 18 + 7 * i, 62));

        }

        for (int i = 0; i <= 6; i += (lod > 0.5 ? 1 : 2)) {

            lines.append(QLineF(5, 18 + i * 5, 13, 18 + i * 5));

            lines.append(QLineF(94, 18 + i * 5, 102, 18 + i * 5));

        }

    }

    if (lod >= 0.4) {

        const QLineF lineData[] = {

            QLineF(25, 35, 35, 35),

            QLineF(35, 30, 35, 40),

            QLineF(35, 30, 45, 35),

            QLineF(35, 40, 45, 35),

            QLineF(45, 30, 45, 40),

            QLineF(45, 35, 55, 35)

        };

        lines.append(lineData, 6);

    }

    painter->drawLines(lines.data(), lines.size());

    // Draw red ink

    if (stuff.size() > 1) {

        QPen p = painter->pen();

        painter->setPen(QPen(Qt::red, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));

        painter->setBrush(Qt::NoBrush);

        QPainterPath path;

        path.moveTo(stuff.first());

        for (int i = 1; i < stuff.size(); ++i)

            path.lineTo(stuff.at(i));

        painter->drawPath(path);

        painter->setPen(p);

    }

}

void Chip::mousePressEvent(QGraphicsSceneMouseEvent *event)

{

    QGraphicsItem::mousePressEvent(event);

    update();

}

void Chip::mouseMoveEvent(QGraphicsSceneMouseEvent *event)

{

    if (event->modifiers() & Qt::ShiftModifier) {

        stuff << event->pos();

        update();

        return;

    }

    QGraphicsItem::mouseMoveEvent(event);

}

void Chip::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)

{

    QGraphicsItem::mouseReleaseEvent(event);

    update();

}