1 files changed, 118 insertions, 0 deletions
diff --git a/qmapwatchlet/compassview.cpp b/qmapwatchlet/compassview.cpp
new file mode 100644
index 0000000..5de44a5
--- /dev/null
+++ b/qmapwatchlet/compassview.cpp
@@ -0,0 +1,118 @@
+#include "qmapwatchletplugin.h"
+#include "compassview.h"
+
+using namespace sowatch;
+QTM_USE_NAMESPACE
+
+CompassView::CompassView(QDeclarativeItem *parent) :
+    QDeclarativeItem(parent),
+    _enabled(false),
+    _image(SOWATCH_QML_DIR "/qmapwatchlet/compass.png"),
+    _posSource(QGeoPositionInfoSource::createDefaultSource(this)),
+    _direction(-1.0), _speed(-1.0), _altitude(-1.0)
+{
+	if (_posSource) {
+		connect(_posSource, SIGNAL(positionUpdated(QGeoPositionInfo)),
+				SLOT(handlePositionUpdate(QGeoPositionInfo)));
+		_posSource->lastKnownPosition();
+	} else {
+		qWarning() << "No position source for moving map!";
+	}
+
+	setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+bool CompassView::updateEnabled() const
+{
+	return _enabled;
+}
+
+void CompassView::setUpdateEnabled(bool enabled)
+{
+	if (_posSource && _enabled != enabled) {
+		if (enabled) {
+			qDebug() << "Start position updates";
+			_posSource->startUpdates();
+		} else {
+			qDebug() << "Stop position updates";
+			_posSource->stopUpdates();
+		}
+		_enabled = enabled;
+
+		emit updateEnabledChanged();
+	}
+
+}
+
+int CompassView::updateInterval() const
+{
+	if (_posSource) {
+		return _posSource->updateInterval();
+	} else {
+		return 0;
+	}
+}
+
+void CompassView::setUpdateInterval(int msec)
+{
+	if (_posSource) {
+		_posSource->setUpdateInterval(msec);
+		emit updateIntervalChanged();
+	}
+}
+
+qreal CompassView::currentSpeed() const
+{
+	return _speed;
+}
+
+qreal CompassView::currentAltitude() const
+{
+	return _altitude;
+}
+
+void CompassView::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+	Q_UNUSED(widget);
+	// Now render the arrow indicator
+	const int centerX = _size.width() / 2, centerY = _size.height() / 2;
+
+	if (_direction >= 0.0) {
+		painter->save();
+		painter->translate(centerX, centerY);
+		painter->rotate(_direction);
+		painter->drawImage(-_image.width() / 2, -_image.height() / 2, _image);
+		painter->restore();
+	}
+}
+
+void CompassView::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
+{
+	Q_UNUSED(oldGeometry);
+	_size = newGeometry.size().toSize();
+}
+
+void CompassView::handlePositionUpdate(const QGeoPositionInfo &info)
+{
+	qDebug() << "Pos update";
+
+	qreal newDirection = -1.0;
+	if (info.hasAttribute(QGeoPositionInfo::Direction)) {
+		newDirection = info.attribute(QGeoPositionInfo::Direction);
+	}
+	qDebug() << "New dir" << newDirection;
+	if (newDirection != _direction) {
+		_direction = newDirection;
+		update();
+	}
+
+	qreal newSpeed = -1.0;
+	if (info.hasAttribute(QGeoPositionInfo::GroundSpeed)) {
+		newSpeed = info.attribute(QGeoPositionInfo::GroundSpeed);
+	}
+	qDebug() << "New speed" << newSpeed;
+	if (newSpeed != _speed) {
+		_speed = newSpeed;
+		emit currentSpeedChanged();
+	}
+}