1 /*
2  * TilEm II
3  *
4  * Copyright (c) 2011-2012 Benjamin Moody
5  *
6  * This program is free software: you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation, either version 3 of the
9  * License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful, but
12  * WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14  * General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include <gtk/gtk.h>
21 
22 /* TilemMemModel object: an efficient GtkTreeModel interface for
23    viewing and editing calculator's memory */
24 
25 G_BEGIN_DECLS
26 
27 /* Column numbers (repeated for each byte in a given row) */
28 enum {
29 	MM_COL_ADDRESS_0 = 0,   /* Address (hexadecimal) */
30 	MM_COL_HEX_0,           /* Byte value (hexadecimal) */
31 	MM_COL_CHAR_0,          /* Byte value (character, converted to
32 	                           UTF-8) */
33 	MM_COL_BYTE_PTR_0,	/* Pointer to corresponding memory byte */
34 	MM_COL_EDITABLE_0,      /* TRUE if byte is editable */
35 	MM_COLUMNS_PER_BYTE
36 };
37 
38 #define MM_COL_ADDRESS(n) (MM_COL_ADDRESS_0 + (n) * MM_COLUMNS_PER_BYTE)
39 #define MM_COL_HEX(n) (MM_COL_HEX_0 + (n) * MM_COLUMNS_PER_BYTE)
40 #define MM_COL_CHAR(n) (MM_COL_CHAR_0 + (n) * MM_COLUMNS_PER_BYTE)
41 #define MM_COL_BYTE_PTR(n) (MM_COL_BYTE_PTR_0 + (n) * MM_COLUMNS_PER_BYTE)
42 #define MM_COL_EDITABLE(n) (MM_COL_EDITABLE_0 + (n) * MM_COLUMNS_PER_BYTE)
43 
44 /* GObject stuff */
45 
46 #define TILEM_TYPE_MEM_MODEL           (tilem_mem_model_get_type())
47 #define TILEM_MEM_MODEL(obj)           (G_TYPE_CHECK_INSTANCE_CAST((obj), TILEM_TYPE_MEM_MODEL, TilemMemModel))
48 #define TILEM_MEM_MODEL_CLASS(cls)     (G_TYPE_CHECK_CLASS_CAST((cls), TILEM_TYPE_MEM_MODEL, TilemMemModelClass))
49 #define TILEM_IS_MEM_MODEL(obj)        (G_TYPE_CHECK_INSTANCE_TYPE((obj), TILEM_TYPE_MEM_MODEL))
50 #define TILEM_IS_MEM_MODEL_CLASS(cls)  (G_TYPE_CHECK_CLASS_TYPE((cls), TILEM_TYPE_MEM_MODEL))
51 #define TILEM_MEM_MODEL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), TILEM_TYPE_MEM_MODEL, TilemMemModelClass))
52 
53 typedef struct _TilemMemModel {
54 	GObject parent;
55 	TilemCalcEmulator *emu;
56 	gint stamp;
57 	int row_size;
58 	int num_rows;
59 	dword start_addr;
60 	dword wrap_addr;
61 	gboolean use_logical;
62 	GQueue *cache;
63 } TilemMemModel;
64 
65 typedef struct _TilemMemModelClass {
66 	GObjectClass parent_class;
67 } TilemMemModelClass;
68 
69 GType tilem_mem_model_get_type(void) G_GNUC_CONST;
70 
71 GtkTreeModel * tilem_mem_model_new(TilemCalcEmulator* emu,
72                                    int rowsize, dword start,
73                                    gboolean logical);
74 
75 void tilem_mem_model_clear_cache(TilemMemModel *mm);
76 
77 G_END_DECLS
78