1 /*
2  *
3  * This program is free software; you can redistribute it and/or modify it
4  * under the terms of the GNU Lesser General Public License as published by
5  * the Free Software Foundation.
6  *
7  * This program is distributed in the hope that it will be useful, but
8  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
9  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
10  * for more details.
11  *
12  * You should have received a copy of the GNU Lesser General Public License
13  * along with this program; if not, see <http://www.gnu.org/licenses/>.
14  *
15  *
16  * Authors:
17  *		Chris Lahey <clahey@ximian.com>
18  *
19  * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
20  *
21  */
22 
23 #if !defined (__E_UTIL_H_INSIDE__) && !defined (LIBEUTIL_COMPILATION)
24 #error "Only <e-util/e-util.h> should be included directly."
25 #endif
26 
27 #ifndef E_SELECTION_MODEL_H
28 #define E_SELECTION_MODEL_H
29 
30 #include <gtk/gtk.h>
31 #include <e-util/e-misc-utils.h>
32 #include <e-util/e-sorter.h>
33 
34 /* Standard GObject macros */
35 #define E_TYPE_SELECTION_MODEL \
36 	(e_selection_model_get_type ())
37 #define E_SELECTION_MODEL(obj) \
38 	(G_TYPE_CHECK_INSTANCE_CAST \
39 	((obj), E_TYPE_SELECTION_MODEL, ESelectionModel))
40 #define E_SELECTION_MODEL_CLASS(cls) \
41 	(G_TYPE_CHECK_CLASS_CAST \
42 	((cls), E_TYPE_SELECTION_MODEL, ESelectionModelClass))
43 #define E_IS_SELECTION_MODEL(obj) \
44 	(G_TYPE_CHECK_INSTANCE_TYPE \
45 	((obj), E_TYPE_SELECTION_MODEL))
46 #define E_IS_SELECTION_MODEL_CLASS(cls) \
47 	(G_TYPE_CHECK_CLASS_TYPE \
48 	((cls), E_TYPE_SELECTION_MODEL))
49 #define E_SELECTION_MODEL_GET_CLASS(obj) \
50 	(G_TYPE_INSTANCE_GET_CLASS \
51 	((obj), E_TYPE_SELECTION_MODEL, ESelectionModelClass))
52 
53 G_BEGIN_DECLS
54 
55 typedef struct _ESelectionModel ESelectionModel;
56 typedef struct _ESelectionModelClass ESelectionModelClass;
57 
58 /* list selection modes */
59 typedef enum {
60 	E_CURSOR_LINE,
61 	E_CURSOR_SIMPLE,
62 	E_CURSOR_SPREADSHEET
63 } ECursorMode;
64 
65 struct _ESelectionModel {
66 	GObject parent;
67 
68 	ESorter *sorter;
69 
70 	GtkSelectionMode mode;
71 	ECursorMode cursor_mode;
72 
73 	gint old_selection;
74 };
75 
76 struct _ESelectionModelClass {
77 	GObjectClass parent_class;
78 
79 	/* Virtual methods */
80 	gboolean	(*is_row_selected)	(ESelectionModel *model,
81 						 gint row);
82 	void		(*foreach)		(ESelectionModel *model,
83 						 EForeachFunc callback,
84 						 gpointer closure);
85 	void		(*clear)		(ESelectionModel *model);
86 	gint		(*selected_count)	(ESelectionModel *model);
87 	void		(*select_all)		(ESelectionModel *model);
88 	gint		(*row_count)		(ESelectionModel *model);
89 
90 	/* Protected virtual methods. */
91 	void		(*change_one_row)	(ESelectionModel *model,
92 						 gint row,
93 						 gboolean on);
94 	void		(*change_cursor)	(ESelectionModel *model,
95 						 gint row,
96 						 gint col);
97 	gint		(*cursor_row)		(ESelectionModel *model);
98 	gint		(*cursor_col)		(ESelectionModel *model);
99 
100 	void		(*select_single_row)	(ESelectionModel *model,
101 						 gint row);
102 	void		(*toggle_single_row)	(ESelectionModel *model,
103 						 gint row);
104 	void		(*move_selection_end)	(ESelectionModel *model,
105 						 gint row);
106 	void		(*set_selection_end)	(ESelectionModel *model,
107 						 gint row);
108 
109 	/* Signals */
110 	void		(*cursor_changed)	(ESelectionModel *model,
111 						 gint row,
112 						 gint col);
113 	void		(*cursor_activated)	(ESelectionModel *model,
114 						 gint row,
115 						 gint col);
116 	void		(*selection_row_changed)(ESelectionModel *model,
117 						 gint row);
118 	void		(*selection_changed)	(ESelectionModel *model);
119 };
120 
121 GType		e_selection_model_get_type	(void) G_GNUC_CONST;
122 void		e_selection_model_do_something	(ESelectionModel *model,
123 						 guint row,
124 						 guint col,
125 						 GdkModifierType state);
126 gboolean	e_selection_model_maybe_do_something
127 						(ESelectionModel *model,
128 						 guint row,
129 						 guint col,
130 						 GdkModifierType state);
131 void		e_selection_model_right_click_down
132 						(ESelectionModel *model,
133 						 guint row,
134 						 guint col,
135 						 GdkModifierType state);
136 void		e_selection_model_right_click_up
137 						(ESelectionModel *model);
138 gboolean	e_selection_model_key_press	(ESelectionModel *model,
139 						 GdkEventKey *key);
140 void		e_selection_model_select_as_key_press
141 						(ESelectionModel *model,
142 						 guint row,
143 						 guint col,
144 						 GdkModifierType state);
145 
146 /* Virtual functions */
147 gboolean	e_selection_model_is_row_selected
148 						(ESelectionModel *model,
149 						 gint n);
150 void		e_selection_model_foreach	(ESelectionModel *model,
151 						 EForeachFunc callback,
152 						 gpointer closure);
153 void		e_selection_model_clear		(ESelectionModel *model);
154 gint		e_selection_model_selected_count
155 						(ESelectionModel *model);
156 void		e_selection_model_select_all	(ESelectionModel *model);
157 gint		e_selection_model_row_count	(ESelectionModel *model);
158 
159 /* Private virtual Functions */
160 void		e_selection_model_change_one_row
161 						(ESelectionModel *model,
162 						 gint row,
163 						 gboolean on);
164 void		e_selection_model_change_cursor	(ESelectionModel *model,
165 						 gint row,
166 						 gint col);
167 gint		e_selection_model_cursor_row	(ESelectionModel *model);
168 gint		e_selection_model_cursor_col	(ESelectionModel *model);
169 void		e_selection_model_select_single_row
170 						(ESelectionModel *model,
171 						 gint row);
172 void		e_selection_model_toggle_single_row
173 						(ESelectionModel *model,
174 						 gint row);
175 void		e_selection_model_move_selection_end
176 						(ESelectionModel *model,
177 						 gint row);
178 void		e_selection_model_set_selection_end
179 						(ESelectionModel *model,
180 						 gint row);
181 
182 /* Signals */
183 void		e_selection_model_cursor_changed
184 						(ESelectionModel *model,
185 						 gint row,
186 						 gint col);
187 void		e_selection_model_cursor_activated
188 						(ESelectionModel *model,
189 						 gint row,
190 						 gint col);
191 void		e_selection_model_selection_row_changed
192 						(ESelectionModel *model,
193 						 gint row);
194 void		e_selection_model_selection_changed
195 						(ESelectionModel *model);
196 
197 G_END_DECLS
198 
199 #endif /* E_SELECTION_MODEL_H */
200 
201