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/***************************************************************************
* copyright (C) 2005
* Umbrello UML Modeller Authors <uml-devel @uml.sf.net>
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "graphvizgraph.h"
#include <graphviz/graph.h>
#include <kdebug.h>
#define DPI 96
char* _strcpy(const char* name)
{
char *a;
strlen(name);
a=new char[strlen(name)+1];
a=strcpy(a,name);
return a;
}
namespace Autotqlayout
{
/**
*
* @return
*/
GraphvizGraph::GraphvizGraph()
: Autotqlayout::Graph()
{
aginit();
empty_flag=true;
_agraph = agopen("graph",AGDIGRAPH);
a_width= agnodeattr(_agraph, "width", "");;
a_height= agnodeattr(_agraph, "height", "");
a_label = agnodeattr(_agraph, "label", "");
a_weight= agedgeattr(_agraph,"weight","");
agnodeattr(_agraph, "fixedsize", "true");
agnodeattr(_agraph, "margin", "0.01,0.01");
agnodeattr(_agraph, "shape", "box");
agraphattr(_agraph, "dpi", "DPI/0");
}
GraphvizGraph::~GraphvizGraph()
{
nodelist.clear();
agclose(_agraph);
/* Free graph structures */
//#ifndef internal_renderizer
/* Clean up output file and errors */
// dotneato_terminate(gvc);
//dotneato_eof(gvc);
}
void GraphvizGraph::addEdge(const char* nodea, const char* nodeb, int weight)
{
char *a=_strcpy(nodea);
char *b=_strcpy(nodeb);
char *weight_str;
asprintf(&weight_str,"%d",weight);
Agedge_t* e= agedge(_agraph,agnode(_agraph,a),agnode(_agraph,b));
delete[](a);
delete[](b);
agxset(e,a_weight->index,weight_str);
}
void GraphvizGraph::addNode(const char* name, int width, int height)
{
char *a =_strcpy(name);
char *w_str,*h_str;
Agnode_t* node =agnode(_agraph,a);
delete[](a);
agxset(node, a_label->index, "a");
asprintf(&h_str,"%f",((float)height)/DPI);
asprintf(&w_str,"%f",((float)width)/DPI);
agxset(node, a_height->index,h_str);// sprintf("%d",height));
free (h_str);
agxset(node, a_width->index, w_str);
free (w_str);
empty_flag = false;
}
void Autotqlayout::GraphvizGraph::setCompressShapes( bool b )
{
if (empty())
{
if (b) agraphattr(_agraph,"ratio","compress");
else agraphattr(_agraph,"ratio","");
}
}
void Autotqlayout::GraphvizGraph::setCenterDiagram( bool b )
{
if (empty())
{
if (b) agraphattr(_agraph,"center","true");
else agraphattr(_agraph,"center","false");
}
}
void Autotqlayout::GraphvizGraph::setShapeSeparation( int i )
{
char* a;
asprintf(&a,"%f",((float) i)/10.0);
agraphattr(_agraph,"nodesep",a);
free (a);
}
bool Autotqlayout::GraphvizGraph::empty( )
{
return empty_flag;
}
Autotqlayout::Node* Autotqlayout::GraphvizGraph::getNode( const char * arg1 )
{
char *a = _strcpy(arg1);
Autotqlayout::GraphvizNode* b=
new Autotqlayout::GraphvizNode(agnode(_agraph,a));
delete[](a);
nodelist.push_back(b);
return b;
}
void GraphvizGraph::setCanvas( Autotqlayout::Canvas * canvas)
{
char buf[100];
sprintf(buf,"%f,%f",((float)canvas->getMaxX()/DPI),((float)canvas->getMaxY()/DPI));
kDebug() << "size: " << buf << endl;
agraphattr(_agraph, "size", buf);
agraphattr(_agraph, "page", buf);
}
} // end namespace Autotqlayout
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