74 lines
1.8 KiB
C++
74 lines
1.8 KiB
C++
#include "qtmaterialmenu.h"
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#include "qtmaterialmenu_p.h"
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#include <QMouseEvent>
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#include <QPainter>
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#include <QTime>
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#include <QTimer>
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QtMaterialMenu::QtMaterialMenu(QWidget *parent)
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: QWidget(parent)
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{
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QTimer *timer = new QTimer(this);
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connect(timer, &QTimer::timeout, this, QOverload<>::of(&QWidget::update));
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timer->start(1000);
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setWindowTitle(tr("Analog Clock"));
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resize(200, 200);
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}
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void QtMaterialMenu::paintEvent(QPaintEvent *)
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{
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static const QPoint hourHand[3] = {
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QPoint(7, 8),
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QPoint(-7, 8),
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QPoint(0, -40)
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};
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static const QPoint minuteHand[3] = {
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QPoint(7, 8),
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QPoint(-7, 8),
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QPoint(0, -70)
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};
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QColor hourColor(127, 0, 127);
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QColor minuteColor(0, 127, 127, 191);
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int side = qMin(width(), height());
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QTime time = QTime::currentTime();
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.translate(width() / 2, height() / 2);
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painter.scale(side / 200.0, side / 200.0);
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painter.setPen(Qt::NoPen);
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painter.setBrush(hourColor);
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painter.save();
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painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
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painter.drawConvexPolygon(hourHand, 3);
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painter.restore();
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painter.setPen(hourColor);
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for (int i = 0; i < 12; ++i) {
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painter.drawLine(88, 0, 96, 0);
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painter.rotate(30.0);
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}
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painter.setPen(Qt::NoPen);
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painter.setBrush(minuteColor);
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painter.save();
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painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
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painter.drawConvexPolygon(minuteHand, 3);
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painter.restore();
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painter.setPen(minuteColor);
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for (int j = 0; j < 60; ++j) {
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if ((j % 5) != 0)
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painter.drawLine(92, 0, 96, 0);
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painter.rotate(6.0);
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}
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}
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