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ledindicator.cpp
65 lines (52 loc) · 1.88 KB
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ledindicator.cpp
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#include <QPainter>
#include "ledindicator.h"
const qreal LedIndicator::scaledSize = 1000; /* Visual Studio static const mess */
LedIndicator::LedIndicator(QWidget *parent) : QAbstractButton(parent)
{
setMinimumSize(24,24);
onColor1 = QColor(0,255,0);
onColor2 = QColor(0,0,0);
offColor1 = QColor(255,0,0);
offColor2 = QColor(0,0,0);
}
bool LedIndicator::hitButton(const QPoint &pos) const
{
return false;
}
void LedIndicator::resizeEvent(QResizeEvent *event) {
update();
}
void LedIndicator::paintEvent(QPaintEvent *event) {
qreal realSize = qMin(width(), height());
QRadialGradient gradient;
QPainter painter(this);
QPen pen(Qt::black);
pen.setWidth(1);
painter.setRenderHint(QPainter::Antialiasing);
painter.translate(width()/2, height()/2);
painter.scale(realSize/scaledSize, realSize/scaledSize);
gradient = QRadialGradient (QPointF(-500,-500), 1500, QPointF(-500,-500));
gradient.setColorAt(0, QColor(224,224,224));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(pen);
painter.setBrush(QBrush(gradient));
painter.drawEllipse(QPointF(0,0), 500, 500);
gradient = QRadialGradient (QPointF(500,500), 1500, QPointF(500,500));
gradient.setColorAt(0, QColor(224,224,224));
gradient.setColorAt(1, QColor(28,28,28));
painter.setPen(pen);
painter.setBrush(QBrush(gradient));
painter.drawEllipse(QPointF(0,0), 450, 450);
painter.setPen(pen);
if( isDown() ) {
gradient = QRadialGradient (QPointF(-500,-500), 1500, QPointF(-500,-500));
gradient.setColorAt(0, onColor1);
gradient.setColorAt(1, onColor2);
} else {
gradient = QRadialGradient (QPointF(500,500), 1500, QPointF(500,500));
gradient.setColorAt(0, offColor1);
gradient.setColorAt(1, offColor2);
}
painter.setBrush(gradient);
painter.drawEllipse(QPointF(0,0), 400, 400);
}