/****************************************************************************+
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**+
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).+
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** All rights reserved.+
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** Contact: Nokia Corporation (qt-info@nokia.com)+
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**+
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** This file is part of the demonstration applications of the Qt Toolkit.+
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**+
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** $QT_BEGIN_LICENSE:LGPL$+
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** No Commercial Usage+
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** This file contains pre-release code and may not be distributed.+
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** You may use this file in accordance with the terms and conditions+
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** contained in the Technology Preview License Agreement accompanying+
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** this package.+
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**+
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** GNU Lesser General Public License Usage+
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** Alternatively, this file may be used under the terms of the GNU Lesser+
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** General Public License version 2.1 as published by the Free Software+
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** Foundation and appearing in the file LICENSE.LGPL included in the+
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** packaging of this file.  Please review the following information to+
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** ensure the GNU Lesser General Public License version 2.1 requirements+
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.+
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**+
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** In addition, as a special exception, Nokia gives you certain additional+
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** rights.  These rights are described in the Nokia Qt LGPL Exception+
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.+
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**+
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** If you have questions regarding the use of this file, please contact+
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** Nokia at qt-info@nokia.com.+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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**+
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** $QT_END_LICENSE$+
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**+
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****************************************************************************/+
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+
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#include "chip.h"+
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+
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#include <QtGui>+
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+
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Chip::Chip(const QColor &color, int x, int y)+
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{+
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    this->x = x;+
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    this->y = y;+
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    this->color = color;+
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    setZValue((x + y) % 2);+
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+
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    setFlags(ItemIsSelectable | ItemIsMovable);+
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    setAcceptsHoverEvents(true);+
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}+
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+
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QRectF Chip::boundingRect() const+
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{+
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    return QRectF(0, 0, 110, 70);+
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}+
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+
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QPainterPath Chip::shape() const+
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{+
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    QPainterPath path;+
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    path.addRect(14, 14, 82, 42);+
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    return path;+
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}+
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+
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void Chip::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)+
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{+
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    Q_UNUSED(widget);+
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+
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    QColor fillColor = (option->state & QStyle::State_Selected) ? color.dark(150) : color;+
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    if (option->state & QStyle::State_MouseOver)+
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        fillColor = fillColor.light(125);+
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+
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    const qreal lod = option->levelOfDetailFromTransform(painter->worldTransform());+
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    if (lod < 0.2) {+
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        if (lod < 0.125) {+
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            painter->fillRect(QRectF(0, 0, 110, 70), fillColor);+
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            return;+
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        }+
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+
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        QBrush b = painter->brush();+
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        painter->setBrush(fillColor);+
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        painter->drawRect(13, 13, 97, 57);+
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        painter->setBrush(b);+
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        return;+
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    }+
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+
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    QPen oldPen = painter->pen();+
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    QPen pen = oldPen;+
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    int width = 0;+
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    if (option->state & QStyle::State_Selected)+
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        width += 2;+
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+
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    pen.setWidth(width);+
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    QBrush b = painter->brush();+
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    painter->setBrush(QBrush(fillColor.dark(option->state & QStyle::State_Sunken ? 120 : 100)));+
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+
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    painter->drawRect(QRect(14, 14, 79, 39));+
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    painter->setBrush(b);+
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+
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    if (lod >= 1) {+
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        painter->setPen(QPen(Qt::gray, 1));+
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        painter->drawLine(15, 54, 94, 54);+
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        painter->drawLine(94, 53, 94, 15);+
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        painter->setPen(QPen(Qt::black, 0));+
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    }+
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+
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    // Draw text+
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    if (lod >= 2) {+
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        QFont font("Times", 10);+
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        font.setStyleStrategy(QFont::ForceOutline);+
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        painter->setFont(font);+
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        painter->save();+
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        painter->scale(0.1, 0.1);+
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        painter->drawText(170, 180, QString("Model: VSC-2000 (Very Small Chip) at %1x%2").arg(x).arg(y));+
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        painter->drawText(170, 200, QString("Serial number: DLWR-WEER-123L-ZZ33-SDSJ"));+
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        painter->drawText(170, 220, QString("Manufacturer: Chip Manufacturer"));+
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        painter->restore();+
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    }+
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+
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    // Draw lines+
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    QVarLengthArray<QLineF, 36> lines;+
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    if (lod >= 0.5) {+
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        for (int i = 0; i <= 10; i += (lod > 0.5 ? 1 : 2)) {+
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            lines.append(QLineF(18 + 7 * i, 13, 18 + 7 * i, 5));+
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            lines.append(QLineF(18 + 7 * i, 54, 18 + 7 * i, 62));+
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        }+
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        for (int i = 0; i <= 6; i += (lod > 0.5 ? 1 : 2)) {+
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            lines.append(QLineF(5, 18 + i * 5, 13, 18 + i * 5));+
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            lines.append(QLineF(94, 18 + i * 5, 102, 18 + i * 5));+
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        }+
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    }+
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    if (lod >= 0.4) {+
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        const QLineF lineData[] = {+
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            QLineF(25, 35, 35, 35),+
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            QLineF(35, 30, 35, 40),+
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            QLineF(35, 30, 45, 35),+
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            QLineF(35, 40, 45, 35),+
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            QLineF(45, 30, 45, 40),+
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            QLineF(45, 35, 55, 35)+
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        };+
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        lines.append(lineData, 6);+
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    }+
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    painter->drawLines(lines.data(), lines.size());+
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+
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    // Draw red ink+
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    if (stuff.size() > 1) {+
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        QPen p = painter->pen();+
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        painter->setPen(QPen(Qt::red, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));+
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        painter->setBrush(Qt::NoBrush);+
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        QPainterPath path;+
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        path.moveTo(stuff.first());+
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        for (int i = 1; i < stuff.size(); ++i)+
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            path.lineTo(stuff.at(i));+
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        painter->drawPath(path);+
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        painter->setPen(p);+
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    }+
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}+
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+
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void Chip::mousePressEvent(QGraphicsSceneMouseEvent *event)+
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{+
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    QGraphicsItem::mousePressEvent(event);+
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    update();+
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}+
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+
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void Chip::mouseMoveEvent(QGraphicsSceneMouseEvent *event)+
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{+
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    if (event->modifiers() & Qt::ShiftModifier) {+
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        stuff << event->pos();+
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        update();+
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        return;+
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    }+
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    QGraphicsItem::mouseMoveEvent(event);+
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}+
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+
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void Chip::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)+
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{+
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    QGraphicsItem::mouseReleaseEvent(event);+
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    update();+
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}+
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