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Qt Cluster: Rendering on QNX and INTEGRITY

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#include "gauge.h" #include "gaugenode.h" #include <QtQuick/qsgnode.h> #include <QtQuick/qsgflatcolormaterial.h> #include <QtMath> Gauge::Gauge(QQuickItem *parent) : QQuickItem(parent) , m_value(0) , m_angle(0) , m_numVertices(128) , m_fillWidth(10) , m_radius(0) , m_updateGeometry(true) , m_lefttoright(true) , m_minAngle(0) , m_maxAngle(270) , m_minValue(0) , m_maxValue(240) , m_doNotFill(false) , m_color(QColor(255, 0, 0)) , arc_length(0) , arc_dist_per_vertices(0) , frontCutDeg(0.0) , backCutDeg(0.0) , frontCutRad(0.0) , backCutRad(0.0) , m_cutRad(0) { setFlag(ItemHasContents, true); } Gauge::~Gauge() { } void Gauge::setValue(qreal value) { if (m_value == value) return; m_value = value; updateValue(); emit valueChanged(value); update(); } void Gauge::setNumVertices(int numVertices) { if (m_numVertices == numVertices) return; m_numVertices = numVertices; emit numVerticesChanged(numVertices); update(); } void Gauge::setFillWidth(double fillWidth) { if (m_fillWidth == fillWidth) return; m_fillWidth = fillWidth; emit fillWidthChanged(m_fillWidth); update(); } void Gauge::setRadius(int radius) { if (m_radius == radius) return; m_radius = radius; emit radiusChanged(m_radius); update(); } void Gauge::setMinAngle(double minAngle) { if (m_minAngle == minAngle) return; m_minAngle = minAngle; backCutDeg = m_minAngle; backCutRad = qDegreesToRadians(backCutDeg); if (m_minAngle < m_maxAngle) m_lefttoright = true; else m_lefttoright = false; updateValue(); emit minAngleChanged(m_minAngle); update(); } void Gauge::setMaxAngle(double maxAngle) { if (m_maxAngle == maxAngle) return; m_maxAngle = maxAngle; if (m_minAngle < m_maxAngle) m_lefttoright = true; else m_lefttoright = false; updateValue(); emit maxAngleChanged(m_maxAngle); update(); } void Gauge::setMinValue(double minValue) { if (m_minValue == minValue) return; m_minValue = minValue; emit minValueChanged(m_minValue); update(); } void Gauge::setMaxValue(double maxValue) { if (m_maxValue == maxValue) return; m_maxValue = maxValue; emit maxValueChanged(m_maxValue); update(); } void Gauge::setDoNotFill(bool doNotFill) { if (m_doNotFill == doNotFill) return; m_doNotFill = doNotFill; emit doNotFillChanged(m_doNotFill); update(); } void Gauge::setColor(QColor color) { if (m_color == color) return; m_color = color; emit colorChanged(m_color); update(); } void Gauge::setUpdateGeometry(bool updateGeometry) { if (m_updateGeometry == updateGeometry) return; m_updateGeometry = updateGeometry; if (m_updateGeometry) calcArc(); else m_cutRad = calcValueAsRad(m_value); update(); } float Gauge::calcValueAsRad(qreal value) { return qDegreesToRadians((m_minAngle + ((m_maxAngle - m_minAngle) / (m_maxValue - m_minValue)) * (value - m_minValue)) - 180.); } void Gauge::updateValue() { if (m_updateGeometry) calcArc(); else m_cutRad = calcValueAsRad(m_value); } void Gauge::calcArc() { backCutDeg = m_minAngle; backCutRad = qDegreesToRadians(backCutDeg - 270); if (m_updateGeometry) { m_angle = ((m_maxAngle - m_minAngle) / (m_maxValue - m_minValue)) * (m_value - m_minValue); } else { m_angle = ((m_maxAngle - m_minAngle) / (m_maxValue - m_minValue)) * (m_maxValue - m_minValue); } arc_length = qDegreesToRadians(m_angle); arc_dist_per_vertices = arc_length / m_numVertices; emit angleChanged(m_angle); } QSGNode *Gauge::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *) { GaugeNode *n = static_cast<GaugeNode *>(oldNode); if (!n) n = new GaugeNode(m_numVertices, m_color, m_doNotFill); n->setLeftToRight(m_lefttoright); n->setColor(m_color); n->setBoundingRect(boundingRect()); n->setUpdateGeometry(m_updateGeometry); n->setDoNotFill(m_doNotFill); n->setBackCutRad(backCutRad); n->setRadius(m_radius); n->setArcDistPerVert(arc_dist_per_vertices); n->setNumVertices(m_numVertices); n->setFillWidth(m_fillWidth); if (!m_updateGeometry) n->setCutRad(m_cutRad); n->draw(); return n; } void Gauge::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) { QQuickItem::geometryChanged(newGeometry, oldGeometry); if (m_radius == 0) setRadius(newGeometry.height() * 0.5); calcArc(); update(); }