Sample Hotkey

Demonstrates the usage of IKeyboard

refs #83

samples/hotkey/led.cpp

@@ -0,0 +1,67 @@
+/* Copyright (C) 2013 VATSIM Community / contributors
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "led.h"
+#include <QPen>
+#include <QPainter>
+#include <QPointF>
+#include <QRadialGradient>
+
+CLed::CLed(QWidget *parent) :
+    QWidget(parent),
+    m_isChecked(false)
+{
+}
+
+void CLed::paintEvent(QPaintEvent * /* event */)
+{
+    qint32 diameter = qMin(width(), height());
+
+    QPainter painter(this);
+    painter.setRenderHint(QPainter::Antialiasing);
+    painter.translate(width() / 2, height() / 2);
+    painter.scale(diameter / 50.0, diameter / 50.0);
+
+    drawLed(painter);
+    drawShine(painter);
+}
+
+QSize CLed::minimumSizeHint() const
+{
+    return QSize(50, 50);
+}
+
+void CLed::drawLed(QPainter &painter)
+{
+    // Draw circle
+    QColor backgroundColor;
+
+    if (isChecked())
+        backgroundColor = Qt::red;
+    else
+        backgroundColor = Qt::gray;
+
+    // Black border color
+    // Fill color depends on the state
+    QPen penCircle;
+    penCircle.setColor(Qt::black);
+    penCircle.setWidthF(10.0);
+    painter.setBrush(backgroundColor);
+    painter.drawEllipse(QPointF(0.0, 0.0), 24.5, 24.5);
+}
+
+void CLed::drawShine(QPainter &painter)
+{
+    // Draw shine
+    QColor white1(255,255,255,200);
+    QColor white0(255,255,255,0);
+    QRadialGradient shine(QPointF(-10.0,-10.0),30.0,QPointF(-10,-10));
+    shine.setColorAt(0.0, white1);
+    shine.setColorAt(1.0, white0);
+    painter.setBrush(shine);
+    painter.drawEllipse(QPointF(0.0, 0.0), 24.0, 24.0);
+}
+
+