1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Kévin FERRARE
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef _GUI_LIST_H_
#define _GUI_LIST_H_
#include "config.h"
#include "icon.h"
#include "screen_access.h"
#define SCROLLBAR_WIDTH 6
/* Key assignement */
#if (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
(CONFIG_KEYPAD == IRIVER_H300_PAD)
#define LIST_NEXT BUTTON_DOWN
#define LIST_PREV BUTTON_UP
#define LIST_PGUP (BUTTON_ON | BUTTON_UP)
#define LIST_PGDN (BUTTON_ON | BUTTON_DOWN)
#define LIST_RC_NEXT BUTTON_RC_FF
#define LIST_RC_PREV BUTTON_RC_REW
#define LIST_RC_PGUP BUTTON_RC_SOURCE
#define LIST_RC_PGDN BUTTON_RC_BITRATE
#elif CONFIG_KEYPAD == RECORDER_PAD
#define LIST_NEXT BUTTON_DOWN
#define LIST_PREV BUTTON_UP
#define LIST_PGUP (BUTTON_ON | BUTTON_UP)
#define LIST_PGDN (BUTTON_ON | BUTTON_DOWN)
#define LIST_RC_NEXT BUTTON_RC_RIGHT
#define LIST_RC_PREV BUTTON_RC_LEFT
#elif CONFIG_KEYPAD == PLAYER_PAD
#define LIST_NEXT BUTTON_RIGHT
#define LIST_PREV BUTTON_LEFT
#define LIST_RC_NEXT BUTTON_RC_RIGHT
#define LIST_RC_PREV BUTTON_RC_LEFT
#elif CONFIG_KEYPAD == ONDIO_PAD
#define LIST_NEXT BUTTON_DOWN
#define LIST_PREV BUTTON_UP
#elif CONFIG_KEYPAD == GMINI100_PAD
#define LIST_NEXT BUTTON_DOWN
#define LIST_PREV BUTTON_UP
#define LIST_PGUP (BUTTON_ON | BUTTON_UP)
#define LIST_PGDN (BUTTON_ON | BUTTON_DOWN)
#endif
struct gui_list
{
int nb_items;
int selected_item;
int start_item; /* the item that is displayed at the top of the screen */
void (*callback_get_item_icon)(int selected_item, ICON * icon);
char * (*callback_get_item_name)(int selected_item, char *buffer);
struct screen * display;
int line_scroll_limit;
};
/*
* Initializes a scrolling list
* - gui_list : the list structure to initialize
* - callback_get_item_icon : pointer to a function that associates an icon
* to a given item number
* - callback_get_item_name : pointer to a function that associates a label
* to a given item number
*/
extern void gui_list_init(struct gui_list * gui_list,
void (*callback_get_item_icon)(int selected_item, ICON * icon),
char * (*callback_get_item_name)(int selected_item, char *buffer)
);
/*
* Sets the numburs of items the list can currently display
* note that the list's context like the currently pointed item is resetted
* - gui_list : the list structure to initialize
* - nb_items : the numbers of items you want
*/
extern void gui_list_set_nb_items(struct gui_list * gui_list, int nb_items);
/*
* Puts the selection in the screen
* - gui_list : the list structure
* - put_from_end : if true, selection will be put as close from
* the end of the list as possible, else, it's
* from the beginning
*/
extern void gui_list_put_selection_in_screen(struct gui_list * gui_list,
bool put_from_end);
/*
* Attach the scrolling list to a screen
* (The previous screen attachement is lost)
* - gui_list : the list structure
* - display : the screen to attach
*/
extern void gui_list_set_display(struct gui_list * gui_list,
struct screen * display);
/*
* Gives the name of the selected object
* - gui_list : the list structure
* - buffer : a buffer which is filled with the name
*/
extern void gui_list_get_selected_item_name(struct gui_list * gui_list,
char *buffer);
/*
* Gives the position of the selected item
* - gui_list : the list structure
* Returns the position
*/
extern int gui_list_get_selected_item_position(struct gui_list * gui_list);
/*
* Selects an item in the list
* - gui_list : the list structure
* - item_number : the number of the item which will be selected
*/
extern void gui_list_select_item(struct gui_list * gui_list, int item_number);
/*
* Draws the list on the attached screen
* - gui_list : the list structure
*/
extern void gui_list_draw(struct gui_list * gui_list);
/*
* Selects the next item in the list
* (Item 0 gets selected if the end of the list is reached)
* - gui_list : the list structure
*/
extern void gui_list_select_next(struct gui_list * gui_list);
/*
* Selects the previous item in the list
* (Last item in the list gets selected if the list beginning is reached)
* - gui_list : the list structure
*/
extern void gui_list_select_previous(struct gui_list * gui_list);
/*
* Go to next page if any, else selects the last item in the list
* - gui_list : the list structure
* - nb_lines : the number of lines to try to move the cursor
*/
extern void gui_list_select_next_page(struct gui_list * gui_list,
int nb_lines);
/*
* Go to previous page if any, else selects the first item in the list
* - gui_list : the list structure
* - nb_lines : the number of lines to try to move the cursor
*/
extern void gui_list_select_previous_page(struct gui_list * gui_list,
int nb_lines);
/*
* Adds an item to the list (the callback will be asked for one more item)
* - gui_list : the list structure
*/
extern void gui_list_add_item(struct gui_list * gui_list);
/*
* Removes an item to the list (the callback will be asked for one less item)
* - gui_list : the list structure
*/
extern void gui_list_del_item(struct gui_list * gui_list);
/*
* This part handles as many lists as there are connected screens
* (the api is similar to the ones above)
* The lists on the screens are synchronized ;
* theirs items and selected items are the same, but of course,
* they can be displayed on screens with different sizes
* The final aim is to let the programmer handle many lists in one
* function call and make its code independant from the number of screens
*/
struct gui_synclist
{
struct gui_list gui_list[NB_SCREENS];
};
extern void gui_synclist_init(struct gui_synclist * lists,
void (*callback_get_item_icon)(int selected_item, ICON * icon),
char * (*callback_get_item_name)(int selected_item, char *buffer)
);
extern void gui_synclist_set_nb_items(struct gui_synclist * lists, int nb_items);
extern void gui_synclist_get_selected_item_name(struct gui_synclist * lists,
char *buffer);
extern int gui_synclist_get_selected_item_position(struct gui_synclist * lists);
extern void gui_synclist_draw(struct gui_synclist * lists);
extern void gui_synclist_select_item(struct gui_synclist * lists,
int item_number);
extern void gui_synclist_select_next(struct gui_synclist * lists);
extern void gui_synclist_select_previous(struct gui_synclist * lists);
extern void gui_synclist_select_next_page(struct gui_synclist * lists,
enum screen_type screen);
extern void gui_synclist_select_previous_page(struct gui_synclist * lists,
enum screen_type screen);
extern void gui_synclist_add_item(struct gui_synclist * lists);
extern void gui_synclist_del_item(struct gui_synclist * lists);
/*
* Do the action implied by the given button,
* returns true if something has been done, false otherwise
* - lists : the synchronized lists
* - button : the keycode of a pressed button
*/
extern bool gui_synclist_do_button(struct gui_synclist * lists, unsigned button);
#endif /* _GUI_LIST_H_ */
|
