roundrectitem.cpp Example File

graphicsview/padnavigator/roundrectitem.cpp
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#include "roundrectitem.h" #include <QApplication> #include <QPainter> #include <QPalette> RoundRectItem::RoundRectItem(const QRectF &bounds, const QColor &color, QGraphicsItem *parent) : QGraphicsObject(parent), fillRect(false), bounds(bounds) { gradient.setStart(bounds.topLeft()); gradient.setFinalStop(bounds.bottomRight()); gradient.setColorAt(0, color); gradient.setColorAt(1, color.dark(200)); setCacheMode(ItemCoordinateCache); } QPixmap RoundRectItem::pixmap() const { return pix; } void RoundRectItem::setPixmap(const QPixmap &pixmap) { pix = pixmap; update(); } QRectF RoundRectItem::boundingRect() const { return bounds.adjusted(0, 0, 2, 2); } void RoundRectItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { Q_UNUSED(option); Q_UNUSED(widget); painter->setPen(Qt::NoPen); painter->setBrush(QColor(0, 0, 0, 64)); painter->drawRoundRect(bounds.translated(2, 2)); if (fillRect) painter->setBrush(QApplication::palette().brush(QPalette::Window)); else painter->setBrush(gradient); painter->setPen(QPen(Qt::black, 1)); painter->drawRoundRect(bounds); if (!pix.isNull()) { painter->scale(1.95, 1.95); painter->drawPixmap(-pix.width() / 2, -pix.height() / 2, pix); } } bool RoundRectItem::fill() const { return fillRect; } void RoundRectItem::setFill(bool fill) { fillRect = fill; update(); }