new geometry implementation + API update

geometry.h

@@ -0,0 +1,59 @@
+/* -----------------------------------------------------------------------------
+ * The Cyberiada GraphML library implemention
+ *
+ * The geometry utilities
+ *
+ * Copyright (C) 2024 Alexey Fedoseev <aleksey@fedoseev.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see https://www.gnu.org/licenses/
+ *
+ * ----------------------------------------------------------------------------- */
+
+#ifndef __CYBERIADA_GEOMETRY_H
+#define __CYBERIADA_GEOMRTRY_H
+
+#include "cyberiadaml.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+	
+/* -----------------------------------------------------------------------------
+ * The Cyberiada GraphML geometry utilities
+ * ----------------------------------------------------------------------------- */
+
+	CyberiadaPoint*    cyberiada_new_point(void);
+	CyberiadaPoint*    cyberiada_copy_point(CyberiadaPoint* src);
+
+	CyberiadaRect*     cyberiada_new_rect(void);
+	CyberiadaRect*     cyberiada_copy_rect(CyberiadaRect* src);
+	
+	CyberiadaPolyline* cyberiada_new_polyline(void);
+	CyberiadaPolyline* cyberiada_copy_polyline(CyberiadaPolyline* src);
+	int                cyberiada_destroy_polyline(CyberiadaPolyline* polyline);
+
+	int                cyberiada_clean_document_geometry(CyberiadaDocument* doc);
+	int                cyberiada_convert_document_geometry(CyberiadaDocument* doc,
+														   CyberiadaGeometryCoordFormat new_format,
+														   CyberiadaGeometryEdgeFormat new_edge_format);
+	int                cyberiada_import_document_geometry(CyberiadaDocument* doc,
+														  int flags, CyberiadaXMLFormat file_format);
+	int                cyberiada_export_document_geometry(CyberiadaDocument* doc,
+														  int flags, CyberiadaXMLFormat file_format);
+	
+#ifdef __cplusplus
+}
+#endif
+    
+#endif