Init

graphicsarcitem.cpp

@@ -0,0 +1,93 @@
+#include "graphicsarcitem.h"
+
+graphicsArcItem::graphicsArcItem(qreal x, qreal y, qreal r, qreal a1, qreal a2)
+{
+    this->x = x;
+    this->y = y;
+    this->r = r;
+    this->a1 = a1;
+    this->a2 = a2;
+    this->col = QColor(Qt::black);
+    this->textLeft="";
+    this->textRight="";
+    this->textVisible=false;
+}
+
+QRectF graphicsArcItem::boundingRect() const
+{
+    return QRectF(x-r, y-r, 2*r, 2*r);
+}
+
+//QPainterPath graphicsArcItem::shape() const
+//{
+//    QPainterPath path;
+//    path.moveTo(x+r, y+r);
+//    path.arcTo(boundingRect(), a2, a1);
+//    return path;
+//}
+
+void graphicsArcItem::setColor(QColor c)
+{
+    if (col!=c) {
+        prepareGeometryChange();
+        col = c;
+    }
+}
+void graphicsArcItem::setRadius(qreal rr)
+{
+    if (r!=rr) {
+        prepareGeometryChange();
+        r = rr;
+    }
+}
+
+void graphicsArcItem::setAngle1(qreal a)
+{
+    if (a1 != a) {
+        prepareGeometryChange();
+        a1=a;
+    }
+}
+void graphicsArcItem::setAngle2(qreal a)
+{
+    if (a2 != a) {
+        prepareGeometryChange();
+        a2=a;
+    }
+}
+void graphicsArcItem::setAngles(qreal aa, qreal ab)
+{
+    setAngle1(aa);
+    setAngle2(ab);
+}
+
+void graphicsArcItem::setText(QString str1, QString str2)
+{
+    if ((textLeft!=str1)||(textRight!=str2))
+    {
+        prepareGeometryChange();
+        textLeft = str1;
+        textRight = str2;
+    }
+}
+
+void graphicsArcItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+    painter->setPen(QPen(col));
+    painter->drawPie(boundingRect(), a1*16, (a2-a1)*16);
+
+    if (textVisible)
+    {
+
+        qreal fs = r/223;
+
+
+        painter->setPen(QPen(Qt::white));
+        QFont f = painter->font();
+        f.setPointSizeF(fs*7);
+        painter->setFont(f);
+
+        painter->drawText(x+0.95*r*cos(a1/180*M_PI), y-0.95*r*sin(a1/180*M_PI), textLeft);
+        painter->drawText(x+0.95*r*cos(a2/180*M_PI), y-0.95*r*sin(a2/180*M_PI), textRight);
+    }
+}