61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
#include "systemtrayicon.h"
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#include <QEvent>
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#include <QWheelEvent>
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#include <QPainter>
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#include <QtDebug>
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#include <cmath>
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SystemTrayIcon::SystemTrayIcon(QObject* parent)
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: QSystemTrayIcon(parent)
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{
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}
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SystemTrayIcon::~SystemTrayIcon() {}
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bool SystemTrayIcon::event(QEvent* event) {
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if (event->type() == QEvent::Wheel) {
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emit WheelEvent(static_cast<QWheelEvent*>(event)->delta());
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return true;
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}
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return QSystemTrayIcon::event(event);
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}
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void SystemTrayIcon::SetProgress(int percentage) {
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if (icon_.isNull()) {
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icon_ = icon().pixmap(geometry().size(), QIcon::Normal);
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grey_icon_ = icon().pixmap(geometry().size(), QIcon::Disabled);
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if (icon_.isNull())
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return;
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}
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QRect rect(icon_.rect());
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// The angle of the line that's used to cover the icon.
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// Centered on rect.topRight()
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double angle = double(100 - percentage) / 100.0 * M_PI_2 + M_PI;
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double length = sqrt(pow(rect.width(), 2.0) + pow(rect.height(), 2.0));
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QPolygon mask;
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mask << rect.topRight();
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mask << rect.topRight() + QPoint(
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length * sin(angle),
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- length * cos(angle));
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if (percentage > 50)
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mask << rect.bottomLeft();
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mask << rect.topLeft();
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mask << rect.topRight();
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QPixmap icon(icon_);
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QPainter p(&icon);
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p.setClipRegion(mask);
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p.drawPixmap(0, 0, grey_icon_);
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p.end();
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setIcon(icon);
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}
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