New upstream version 2.9.22

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

diff --git a/src/arrowobj.h b/src/arrowobj.h
new file mode 100644 (file)
index 0000000..be8c70a
--- /dev/null
+++ b/src/arrowobj.h
@@ -0,0 +1,56 @@
+#ifndef ARROWOBJ_H
+#define ARROWOBJ_H
+
+#include "mapobj.h"
+
+#include <QPen>
+
+/*! \brief arrows are used to indicate partially hidden ends of xlinks and
+    also the ends of xlinks.
+*/
+
+/////////////////////////////////////////////////////////////////////////////
+
+class ArrowObj : public MapObj {
+  public:
+    enum OrnamentStyle { None, HeadFull, Foot };
+    ArrowObj(MapObj *parent);
+    virtual ~ArrowObj();
+    virtual void init();
+    void setPen(QPen pen);
+    QPen getPen();
+    void setArrowSize(qreal r);
+    qreal getArrowSize();
+    void setFixedLength(int i);
+    int getFixedLength();
+    void setUseFixedLength(bool b);
+    bool getUseFixedLength();
+    void show();
+    void hide();
+    void setVisibility(bool b);
+    void setEndPoint(QPointF p);
+    QPointF getEndPoint();
+    void setStyleBegin(OrnamentStyle os);
+    void setStyleBegin(const QString &s);
+    OrnamentStyle getStyleBegin();
+    void setStyleEnd(const QString &s);
+    void setStyleEnd(OrnamentStyle os);
+    OrnamentStyle getStyleEnd();
+    static QString styleToString(const OrnamentStyle &os);
+
+  private:
+    QPolygonF getArrowHead();
+    QPen pen;
+    qreal arrowSize;
+    int fixedLength;
+    bool useFixedLength;
+    QGraphicsPolygonItem *arrowEnd;
+    QGraphicsPolygonItem *arrowBegin;
+    QGraphicsLineItem *line;
+    QPointF endPoint;
+
+    OrnamentStyle styleBegin;
+    OrnamentStyle styleEnd;
+};
+
+#endif