Graphviz: lib/fdpgen/grid.h Source File

Graphviz 2.29.20120524.0446
00001 /* $Id$ $Revision$ */
00002 /* vim:set shiftwidth=4 ts=8: */
00003 
00004 /*************************************************************************
00005  * Copyright (c) 2011 AT&T Intellectual Property 
00006  * All rights reserved. This program and the accompanying materials
00007  * are made available under the terms of the Eclipse Public License v1.0
00008  * which accompanies this distribution, and is available at
00009  * http://www.eclipse.org/legal/epl-v10.html
00010  *
00011  * Contributors: See CVS logs. Details at http://www.graphviz.org/
00012  *************************************************************************/
00013 
00014 #ifdef __cplusplus
00015 extern "C" {
00016 #endif
00017 
00018 #ifndef GRID_H
00019 #define GRID_H
00020 
00021 #ifdef HAVE_CONFIG_H
00022 #include <config.h>
00023 #endif
00024 
00025 #include <render.h>
00026 #include <cdt.h>
00027 
00028     typedef struct _grid Grid;
00029 
00030     typedef struct _node_list {
00031         Agnode_t *node;
00032         struct _node_list *next;
00033     } node_list;
00034 
00035     typedef struct {
00036         int i, j;
00037     } gridpt;
00038 
00039     typedef struct {
00040         gridpt p;               /* index of cell */
00041         node_list *nodes;       /* nodes in cell */
00042         Dtlink_t link;          /* cdt data */
00043     } cell;
00044 
00045     extern Grid *mkGrid(int);
00046     extern void adjustGrid(Grid * g, int nnodes);
00047     extern void clearGrid(Grid *);
00048     extern void addGrid(Grid *, int, int, Agnode_t *);
00049     extern void walkGrid(Grid *, int (*)(Dt_t *, cell *, Grid *));
00050     extern cell *findGrid(Grid *, int, int);
00051     extern void delGrid(Grid *);
00052     extern int gLength(cell * p);
00053 
00054 #endif
00055 
00056 #ifdef __cplusplus
00057 }
00058 #endif