| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the demonstration applications of the Qt Toolkit. |
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| |
| #include "chip.h" |
| |
| #include <QGraphicsSceneMouseEvent> |
| #include <QPainter> |
| #include <QStyleOptionGraphicsItem> |
| |
| 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); |
| setAcceptHoverEvents(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.darker(150) : color; |
| if (option->state & QStyle::State_MouseOver) |
| fillColor = fillColor.lighter(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.darker(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(); |
| } |