gui/broken_edge.h
author alpar
Fri, 26 Aug 2005 15:06:51 +0000
changeset 1653 9955e7ec7e89
parent 1524 587a823bcdd0
permissions -rw-r--r--
gui is renamed to glemon
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// -*- C++ -*- //
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#ifndef BROKEN_EDGE_H
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#define BROKEN_EDGE_H
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class BrokenEdge;
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#include "all_include.h"
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#include <libgnomecanvasmm.h>
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#include <libgnomecanvasmm/polygon.h>
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#include "graph_displayer_canvas.h"
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#include <lemon/xy.h>
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class BrokenEdge : public Gnome::Canvas::Line
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{
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  GraphDisplayerCanvas & gdc;
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  Gnome::Canvas::Polygon * arrow;
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  Gnome::Art::Point * my_points;
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  ///Indicates whether the button of mouse is pressed or not
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  bool isbutton;
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  ///At this location was the mousebutton pressed.
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  ///It helps to calculate the distance of dragging.
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  double clicked_x, clicked_y;
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  ///event handler for forming edges
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  bool edgeFormerEventHandler(GdkEvent*);
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 public:
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  BrokenEdge(Gnome::Canvas::Group &, Gnome::Canvas::Points, GraphDisplayerCanvas &);
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  ~BrokenEdge();
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  void setPoints(Gnome::Canvas::Points, bool move=false);
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  xy<double> getArrowPos();
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};
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#endif //BROKEN_EDGE_H
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