1
2/*
3 * ast-model.h
4 *
5 * Copyright (C) 2010 Christopher Li.
6 *
7 */
8
9#ifndef _ast_model_h_
10#define _ast_model_h_
11
12#include <stdint.h>
13#include <gtk/gtk.h>
14#include "lib.h"
15
16#define AST_TYPE_NODE                  (ast_get_type ())
17#define AST_NODE(obj)                  (G_TYPE_CHECK_INSTANCE_CAST ((obj), AST_TYPE_NODE, AstNode))
18#define AST_NODE_CLASS(klass)          (G_TYPE_CHECK_CLASS_CAST ((klass),  AST_TYPE_NODE, AstNodeClass))
19#define AST_IS_NODE(obj)               (G_TYPE_CHECK_INSTANCE_TYPE ((obj), AST_TYPE_NODE))
20#define AST_IS_NODE_CLASS(klass)       (G_TYPE_CHECK_CLASS_TYPE ((klass),  AST_TYPE_NODE))
21#define AST_NODE_GET_CLASS(obj)        (G_TYPE_INSTANCE_GET_CLASS ((obj),  AST_TYPE_NODE, AstNodeClass))
22
23enum
24{
25	AST_COL_RECORD = 0,
26	AST_COL_NAME,
27	AST_N_COLUMNS,
28} ;
29
30
31typedef struct AstNode AstNode;
32typedef struct AstNodeClass AstNodeClass;
33
34
35
36/* AstNode: this structure contains everything we need for our
37 *             model implementation. You can add extra fields to
38 *             this structure, e.g. hashtables to quickly lookup
39 *             rows or whatever else you might need, but it is
40 *             crucial that 'parent' is the first member of the
41 *             structure.                                          */
42
43struct AstNode
44{
45	GObject         base;      /* this MUST be the first member */
46
47	AstNode	*parent;
48	int index;
49	const gchar *text;
50	void (*inspect)(struct AstNode* node);
51	void *ptr;
52	GArray *childnodes;
53	gint stamp;
54};
55
56
57
58/* AstNodeClass: more boilerplate GObject stuff */
59
60struct AstNodeClass
61{
62	GObjectClass base_class;
63};
64
65
66GType ast_get_type(void);
67AstNode* ast_new(AstNode *parent, int index, const char *prefix, void *ptr, void (*expand)(AstNode*));
68
69
70static inline
71AstNode* ast_append_child(AstNode *parent, const char *text,
72			   void *ptr, void (*inspect)(AstNode*))
73{
74	if (ptr) {
75		AstNode *child = ast_new(parent, parent->childnodes->len,
76						text, ptr, inspect);
77		g_array_append_val(parent->childnodes, child);
78		return child;
79	}
80	return NULL;
81}
82
83static inline
84void ast_append_attribute(AstNode *parent, const char *text)
85{
86	AstNode *child = ast_new(parent, parent->childnodes->len, text, NULL, NULL);
87	g_array_append_val(parent->childnodes, child);
88}
89
90#endif /* _ast_h_*/
91