146 lines
4.7 KiB
C
146 lines
4.7 KiB
C
/* -----------------------------------------------------------------------------
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* The Cyberiada GraphML library implemention
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*
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* The C library header
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*
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* Copyright (C) 2024 Alexey Fedoseev <aleksey@fedoseev.net>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see https://www.gnu.org/licenses/
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*
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* ----------------------------------------------------------------------------- */
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#ifndef __CYBERIADA_ML_H
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#define __CYBERIADA_ML_H
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#include <stdio.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* -----------------------------------------------------------------------------
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* The Cyberiada GraphML library types
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* ----------------------------------------------------------------------------- */
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/* SM node types: */
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typedef enum {
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cybNodeInitial = 0, /* initial node */
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cybNodeSimple, /* simple node */
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cybNodeComplex, /* complex node */
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cybNodeComment /* comment node */
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} CyberiadaNodeType;
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/* SM node geometry */
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typedef struct {
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double x, y;
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} CyberiadaPoint;
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typedef struct {
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double x, y, width, height;
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} CyberiadaRect;
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typedef struct _CyberiadaPolyline {
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CyberiadaPoint point;
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struct _CyberiadaPolyline* next;
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} CyberiadaPolyline;
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/* SM node (state) */
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typedef struct _CyberiadaNode {
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char* id;
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size_t id_len;
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char* title;
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size_t title_len;
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CyberiadaNodeType type;
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char* action;
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size_t action_len;
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CyberiadaRect geometry_rect;
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struct _CyberiadaNode* next;
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struct _CyberiadaNode* parent;
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struct _CyberiadaNode* children;
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} CyberiadaNode;
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/* SM edge (transition) */
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typedef struct _CyberiadaEdge {
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char* id;
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size_t id_len;
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char* source_id;
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size_t source_id_len;
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char* target_id;
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size_t target_id_len;
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CyberiadaNode* source;
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CyberiadaNode* target;
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char* action;
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size_t action_len;
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CyberiadaPoint geometry_source_point;
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CyberiadaPoint geometry_target_point;
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CyberiadaPolyline* geometry_polyline;
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struct _CyberiadaEdge* next;
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} CyberiadaEdge;
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/* SM graph (state machine) */
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typedef struct {
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char* name;
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size_t name_len;
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char* version;
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size_t version_len;
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CyberiadaNode* nodes;
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CyberiadaEdge* edges;
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} CyberiadaSM;
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/* SM GraphML supported formats */
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typedef enum {
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cybxmlYED = 0,
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cybxmlCyberiada,
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cybxmlUnknown
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} CyberiadaXMLFormat;
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/* -----------------------------------------------------------------------------
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* The Cyberiada GraphML error codes
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* ----------------------------------------------------------------------------- */
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#define CYBERIADA_NO_ERROR 0
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#define CYBERIADA_XML_ERROR 1
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#define CYBERIADA_FORMAT_ERROR 2
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#define CYBERIADA_NOT_FOUND 3
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#define CYBERIADA_BAD_PARAMETER 4
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/* -----------------------------------------------------------------------------
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* The Cyberiada GraphML library functions
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* ----------------------------------------------------------------------------- */
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/* Allocate the SM structure in memory (for heap usage) */
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CyberiadaSM* cyberiada_create_sm(void);
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/* Initialize the SM structure. Do not use the structure before the initialization! */
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int cyberiada_init_sm(CyberiadaSM* sm);
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/* Cleanup the content of the SM structure, free the conents memory */
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int cyberiada_cleanup_sm(CyberiadaSM* sm);
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/* Free the allocated SM structure (for heap usage) */
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int cyberiada_destroy_sm(CyberiadaSM* sm);
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/* Read an XML file and decode the SM structure */
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int cyberiada_read_sm(CyberiadaSM* sm, const char* filename, CyberiadaXMLFormat format);
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/* Print the SM structure to stdout */
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int cyberiada_print_sm(CyberiadaSM* sm);
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#ifdef __cplusplus
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}
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#endif
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#endif
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