New upstream version 2.9.22

[sven/vym.git] / src / arrowobj.cpp

diff --git a/src/arrowobj.cpp b/src/arrowobj.cpp
new file mode 100644 (file)
index 0000000..b4e36c7
--- /dev/null
+++ b/src/arrowobj.cpp
@@ -0,0 +1,180 @@
+#include "arrowobj.h"
+#include "misc.h"
+
+#include <QDebug>
+#include <QGraphicsScene>
+
+/////////////////////////////////////////////////////////////////
+// ArrowObj
+/////////////////////////////////////////////////////////////////
+
+ArrowObj::ArrowObj(MapObj *parent) : MapObj(parent) { init(); }
+
+ArrowObj::~ArrowObj()
+{
+    delete arrowBegin;
+    delete arrowEnd;
+    delete line;
+}
+
+void ArrowObj::init()
+{
+    QPen pen;
+
+    pen.setStyle(Qt::SolidLine);
+    arrowBegin = scene()->addPolygon(QPolygonF(), pen);
+    arrowBegin->setZValue(dZ_XLINK);
+    arrowEnd = scene()->addPolygon(QPolygonF(), pen);
+    arrowEnd->setZValue(dZ_XLINK);
+
+    line = scene()->addLine(QLineF(), pen);
+    line->setZValue(dZ_XLINK);
+
+    arrowSize = 4;
+    useFixedLength = false;
+    setStyleBegin(None);
+    setStyleEnd(HeadFull);
+}
+
+void ArrowObj::setPen(QPen p)
+{
+    pen = p;
+    line->setPen(pen);
+
+    // end shall have same style as xlink
+    QPen pen_solid = pen;
+    pen_solid.setStyle(Qt::SolidLine);
+    arrowBegin->setPen(pen_solid);
+    arrowEnd->setPen(pen_solid);
+
+    setStyleBegin(styleBegin);
+    setStyleEnd(styleEnd);
+}
+
+QPen ArrowObj::getPen() { return pen; }
+
+void ArrowObj::setArrowSize(qreal r) { arrowSize = r; }
+
+qreal ArrowObj::getArrowSize() { return arrowSize; }
+
+void ArrowObj::setUseFixedLength(bool b) { useFixedLength = b; }
+
+bool ArrowObj::getUseFixedLength() { return useFixedLength; }
+
+void ArrowObj::setFixedLength(int i) { fixedLength = i; }
+
+int ArrowObj::getFixedLength() { return fixedLength; }
+
+void ArrowObj::show() { setVisibility(true); }
+
+void ArrowObj::hide() { setVisibility(false); }
+
+void ArrowObj::setVisibility(bool b)
+{
+    MapObj::setVisibility(b);
+    if (b) {
+        if (styleEnd != None)
+            arrowEnd->show();
+        else
+            arrowEnd->hide();
+        if (useFixedLength && fixedLength == 0)
+            line->hide();
+        else
+            line->show();
+    }
+    else {
+        arrowEnd->hide();
+        line->hide();
+    }
+}
+
+void ArrowObj::setEndPoint(QPointF p)
+{
+    endPoint = p;
+
+    line->setLine(absPos.x(), absPos.y(), p.x(), p.y());
+    arrowEnd->setPos(absPos);
+
+    qreal a = getAngle(endPoint - absPos);
+    arrowEnd->setRotation(-a / 6.28 * 360);
+    arrowEnd->setPos(endPoint);
+}
+
+QPointF ArrowObj::getEndPoint() { return endPoint; }
+
+void ArrowObj::setStyleBegin(const QString &s)
+{
+    if (s == "HeadFull")
+        setStyleBegin(ArrowObj::HeadFull);
+    else
+        setStyleBegin(ArrowObj::None);
+}
+
+void ArrowObj::setStyleBegin(OrnamentStyle os)
+{
+    styleBegin = os;
+    switch (styleBegin) {
+    case HeadFull:
+        arrowEnd->setPolygon(getArrowHead());
+        arrowBegin->setBrush(pen.color());
+        break;
+    case Foot:
+        break;
+    case None:
+        arrowBegin->setPolygon(QPolygonF());
+        break;
+    }
+}
+
+ArrowObj::OrnamentStyle ArrowObj::getStyleBegin() { return styleBegin; }
+
+void ArrowObj::setStyleEnd(const QString &s)
+{
+    if (s == "HeadFull")
+        setStyleEnd(ArrowObj::HeadFull);
+    else
+        setStyleEnd(ArrowObj::None);
+}
+
+void ArrowObj::setStyleEnd(OrnamentStyle os)
+{
+    styleEnd = os;
+    switch (styleEnd) {
+    case HeadFull:
+        arrowEnd->setPolygon(getArrowHead());
+        arrowEnd->setBrush(pen.color());
+        break;
+    case Foot:
+        break;
+    case None:
+        arrowEnd->setPolygon(QPolygonF());
+        break;
+    }
+}
+
+QPolygonF ArrowObj::getArrowHead()
+{
+    QPointF a, b, c;
+    QPolygonF pa;
+    b = a + QPointF(-arrowSize * 2, -arrowSize);
+    c = a + QPointF(-arrowSize * 2, +arrowSize);
+    pa << a << b << c;
+    return pa;
+}
+
+ArrowObj::OrnamentStyle ArrowObj::getStyleEnd() { return styleEnd; }
+
+QString ArrowObj::styleToString(const OrnamentStyle &os)
+{
+    switch (os) {
+    case HeadFull:
+        return "HeadFull";
+        break;
+    case None:
+        return "None";
+        break;
+    default:
+        qWarning() << "ArrowObj::styleToString unknown style " << os;
+    }
+    return "Unknown";
+}