50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
#include "abstractgraphicsitem.h"
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#include <QPainter>
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void AbstractGraphicsItem::paintNumberEllipse(int number, int fontSize, const QColor &color, int position, int count, QPainter *painter)
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{
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painter->save();
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QString numStr = QString::number(number);
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QFont font("Serif");
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font.setPixelSize(fontSize);
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font.setWeight(QFont::Bold);
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QFontMetrics fm(font);
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double w = fm.width(numStr) * 1.3;
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double h = fm.height() * 1.3;
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if (w < h)
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w = h;
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painter->setPen(QColor(255, 255, 255, 0));
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QRadialGradient grad(QPointF(0.5, 0.5), 0.5);
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grad.setCoordinateMode(QGradient::ObjectBoundingMode);
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QColor color1(color), color2(color);
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color1.setAlpha(255);
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color2.setAlpha(0);
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grad.setColorAt(0, color1);
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grad.setColorAt(0.8, color1);
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grad.setColorAt(1, color2);
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painter->setBrush(QBrush(grad));
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QRectF textRect;
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if (position == -1)
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textRect = QRectF((boundingRect().width() - w) / 2.0, (boundingRect().height() - h) / 2.0, w, h);
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else {
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qreal xOffset = 10;
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qreal yOffset = 20;
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qreal spacing = 2;
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if (position < 2)
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textRect = QRectF(count == 1 ? ((boundingRect().width() - w) / 2.0) : (position % 2 == 0 ? xOffset : (boundingRect().width() - xOffset - w)), yOffset, w, h);
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else
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textRect = QRectF(count == 3 ? ((boundingRect().width() - w) / 2.0) : (position % 2 == 0 ? xOffset : (boundingRect().width() - xOffset - w)), yOffset + (spacing + h) * (position / 2), w, h);
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}
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painter->drawEllipse(textRect);
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painter->setPen(Qt::black);
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painter->setFont(font);
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painter->drawText(textRect, Qt::AlignCenter, numStr);
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painter->restore();
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}
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