#include <LEDA/graphics/graphwin.h>

using namespace leda;

GRAPH<int,int> G;

void run_kruskal(GraphWin& gw)
{

	//...
	
	//_____________________________________________________
	gw.redraw();
	return;
}

void init_edge(GraphWin& gw, edge e)
{
  G[e] = rand_int(-99,99);
  gw.set_slider_value(e,(G[e]+100)/200.0,0);
}

void new_node_handler(GraphWin& gw, node v)
{
 run_kruskal(gw);
}

void new_edge_handler(GraphWin& gw, edge e)
{
 init_edge(gw,e);
 run_kruskal(gw);
}

void del_node_handler(GraphWin& gw)
{
 run_kruskal(gw);
}

void del_edge_handler(GraphWin& gw)
{
 run_kruskal(gw);
}

void init_handler(GraphWin& gw)
{
  edge e;
  forall_edges(e,G)
    init_edge(gw,e);
}

void edge_slider_handler(GraphWin& gw,edge e, double f) 
{ 
  G[e] = int(200*f-100);
  run_kruskal(gw);
}

int main()
{
  GraphWin gw(G,"Algorithmus von Kruskal");
  
  gw.set_edge_label_type(data_label);  
  gw.set_edge_direction(undirected_edge);
  
  gw.set_init_graph_handler(init_handler);
  gw.set_new_node_handler(new_node_handler);
  gw.set_new_edge_handler(new_edge_handler);
  gw.set_del_edge_handler(del_edge_handler);
  gw.set_del_node_handler(del_node_handler);
    
  gw.set_edge_slider_handler(edge_slider_handler);  
    
  gw.display();
  gw.edit();
  return 0;
}