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
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
|
/***************************************************************************
menu.c - description
-------------------
begin : Thu Sep 20 2001
copyright : (C) 2001 by Michael Speck
email : kulkanie@gmx.net
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "manager.h"
List *menus = 0; /* list of menus used to delete them later */
extern StkFont *mfont, *mhfont, *mcfont;
extern int gap_height; /* gap size between items */
extern Menu *cur_menu;
#ifdef AUDIO_ENABLED
extern StkSound *wav_menu_motion, *wav_menu_click;
#endif
/*
====================================================================
Create menu.
====================================================================
*/
Menu *menu_create( char *name, int layout, int x, int y, int w, int h, int border, int add_to_list )
{
Menu *menu = calloc( 1, sizeof( Menu ) );
/* name */
if ( name )
menu->name = strdup( name );
else
menu->name = strdup( "none" );
/* layout */
menu->layout = layout;
menu->x = x + border; menu->y = y + border;
menu->w = w - border * 2; menu->h = h - border * 2;
/* items are cleared normally */
menu->items = list_create( LIST_AUTO_DELETE, item_delete );
/* add menu to list menus */
if ( add_to_list )
list_add( menus, menu );
/* create caption */
if ( name ) {
menu_add( menu, item_create_separator( name ) );
((Item*)menu->items->head->next->item)->font = mcfont;
menu_add( menu, item_create_separator( "" ) );
}
/* default fonts */
menu->font = mfont;
menu->hfont = mhfont;
menu->cfont = mcfont;
/* return menu */
return menu;
}
/*
====================================================================
Delete menu and all submenus starting with root menu
====================================================================
*/
void menu_delete( void *pmenu )
{
Menu *menu = (Menu*)pmenu;
if ( !menu ) return;
list_delete( menu->items );
if ( menu->name ) free( menu->name );
free( menu );
}
/*
====================================================================
Add item to menu.
====================================================================
*/
void menu_add( Menu *menu, Item *item )
{
list_add( menu->items, item );
if ( item->type == ITEM_LINK && (Menu*)item->link != menu )
((Menu*)item->link)->parent = menu;
}
/*
====================================================================
Adjust position and size of all entries according to layout.
====================================================================
*/
void menu_adjust( Menu *menu )
{
int height, x, y;
Item *item;
if ( menu->layout == MENU_LAYOUT_CENTERED ) {
/* get full height of all items + gaps */
height = menu->items->count * menu->hfont->height +
( menu->items->count - 1 ) * gap_height;
/* get positions of items */
y = menu->y + ( menu->h - height ) / 2;
x = menu->x;
/* set position */
list_reset( menu->items );
while( ( item = list_next( menu->items ) ) ) {
item->x = x; item->y = y;
item->w = menu->w; item->h = menu->hfont->height;
y += gap_height + menu->hfont->height;
item_adjust( item ); /* adjust alignment */
}
return;
}
fprintf( stderr, "menu_adjust: layout %i not supported\n", menu->layout );
}
/*
====================================================================
Select menu: clear current item and set extern variable cur_menu
====================================================================
*/
void menu_select( Menu *menu )
{
if ( cur_menu ) menu_unselect_cur_item( cur_menu );
cur_menu = menu;
menu->cur_item = 0;
hint_set( 0 );
}
/*
====================================================================
Show/hide all items
====================================================================
*/
void menu_hide( Menu *menu )
{
Item *item;
list_reset( menu->items );
while ( ( item = list_next( menu->items ) ) )
item_hide( item );
}
void menu_show( Menu *menu )
{
Item *item;
list_reset( menu->items );
while ( ( item = list_next( menu->items ) ) )
item_show( item );
}
/*
====================================================================
modify items according to event (if any)
====================================================================
*/
int menu_handle_event( Menu *menu, SDL_Event *event )
{
int result = ACTION_NONE;
Item *item, *old_item;
int item_used;
int x, y, xoff, yoff;
void (*callback)(void);
/* if value::grab is set do only except keyup events */
if ( menu->cur_item && menu->cur_item->type == ITEM_KEY && menu->cur_item->value->grab ) {
if ( event && event->type == SDL_KEYDOWN )
value_set_key( menu->cur_item->value, event->key.keysym.sym );
return result;
}
/* if other event occured check */
if ( event )
switch ( event->type ) {
case SDL_KEYDOWN:
switch ( event->key.keysym.sym ) {
case SDLK_ESCAPE:
/* if ESCAPE is pressed go up to last menu or leave */
if ( strequal( "Back", ((Item*)menu->items->tail->prev->item)->name ) )
menu_select( ((Item*)menu->items->tail->prev->item)->link );
else
if ( strequal( "Quit", ((Item*)menu->items->tail->prev->item)->name ) )
result = ACTION_QUIT;
break;
case SDLK_RETURN:
if ( !menu->cur_item ) break;
item_used = 1;
/* callback */
callback = menu->cur_item->callback;
/* action */
switch ( menu->cur_item->type ) {
case ITEM_ACTION: result = menu->cur_item->item_id; break;
case ITEM_LINK: menu_select( menu->cur_item->link ); break;
case ITEM_KEY: value_grab( menu->cur_item->value ); break;
case ITEM_SWITCH:
case ITEM_SWITCH_X:
case ITEM_RANGE:
value_inc( menu->cur_item->value );
break;
default: item_used = 0; break;
}
if ( item_used ) {
#ifdef AUDIO_ENABLED
stk_sound_play( wav_menu_click );
#endif
if ( callback ) (callback)();
}
break;
case SDLK_RIGHT:
if ( !menu->cur_item ) break;
item_used = 1;
switch ( menu->cur_item->type ) {
case ITEM_SWITCH:
case ITEM_SWITCH_X:
case ITEM_RANGE:
value_inc( menu->cur_item->value );
break;
default: item_used = 0; break;
}
#ifdef AUDIO_ENABLED
if ( item_used )
stk_sound_play( wav_menu_click );
#endif
break;
case SDLK_LEFT:
if ( !menu->cur_item ) break;
item_used = 1;
switch ( menu->cur_item->type ) {
case ITEM_SWITCH:
case ITEM_SWITCH_X:
case ITEM_RANGE:
value_dec( menu->cur_item->value );
break;
default: item_used = 0; break;
}
#ifdef AUDIO_ENABLED
if ( item_used )
stk_sound_play( wav_menu_click );
#endif
break;
case SDLK_UP:
menu_up( menu );
hint_set( menu->cur_item->hint );
#ifdef AUDIO_ENABLED
stk_sound_play( wav_menu_click );
#endif
break;
case SDLK_DOWN:
menu_down( menu );
hint_set( menu->cur_item->hint );
#ifdef AUDIO_ENABLED
stk_sound_play( wav_menu_click );
#endif
break;
default:
/* if type is edit: edit! */
if ( menu->cur_item && menu->cur_item->type == ITEM_EDIT ) {
value_edit( menu->cur_item->value, event->key.keysym.sym, event->key.keysym.unicode );
#ifdef AUDIO_ENABLED
stk_sound_play( wav_menu_click );
#endif
break;
}
break;
}
break;
case SDL_MOUSEBUTTONUP:
if ( !menu->cur_item ) break;
item_used = 1;
callback = menu->cur_item->callback;
switch ( menu->cur_item->type ) {
case ITEM_ACTION: result = menu->cur_item->item_id; break;
case ITEM_LINK: menu_select( menu->cur_item->link ); break;
case ITEM_SWITCH:
case ITEM_SWITCH_X:
case ITEM_RANGE:
if ( event->button.button == STK_BUTTON_LEFT )
value_inc( menu->cur_item->value );
else
value_dec( menu->cur_item->value );
break;
case ITEM_KEY: value_grab( menu->cur_item->value ); break;
default: item_used = 0; break;
}
if ( item_used ) {
#ifdef AUDIO_ENABLED
stk_sound_play( wav_menu_click );
#endif
if ( callback ) (callback)();
}
break;
}
/* mouse motion is handled directly */
SDL_GetRelativeMouseState( &xoff, &yoff );
if ( xoff != 0 || yoff != 0 ) {
SDL_GetMouseState( &x, &y );
/* select item mouse pointer is on */
old_item = menu->cur_item;
menu_unselect_cur_item( menu );
list_reset( menu->items );
while( ( item = list_next( menu->items ) ) )
if ( item_focus( item, x, y ) ) {
menu_select_item( menu, item );
if ( old_item != menu->cur_item ) {
#ifdef AUDIO_ENABLED
stk_sound_play( wav_menu_motion );
#endif
}
break;
}
if ( menu->cur_item )
hint_set( menu->cur_item->hint );
else
hint_set( 0 );
}
return result;
}
/*
====================================================================
Update alpha of items
====================================================================
*/
void menu_update( Menu *menu, int ms )
{
Item *item;
/* update alpha of all items */
list_reset( menu->items );
while ( ( item = list_next( menu->items ) ) )
item_update_alpha( item, ms );
}
/*
====================================================================
Select/unselect item: update menu::cur_item und item::highlight
====================================================================
*/
void menu_unselect_cur_item( Menu *menu )
{
if ( menu->cur_item ) menu->cur_item->highlighted = 0;
menu->cur_item = 0;
}
void menu_select_item( Menu *menu, Item *item )
{
menu->cur_item = item;
menu->cur_item->highlighted = 1;
}
/*
====================================================================
Go one valid menu item up or down.
====================================================================
*/
void menu_up( Menu *menu )
{
ListEntry *entry;
Item *item;
int valid = 0;
/* no selection so far: select first item after caption */
if ( !menu->cur_item ) {
menu_select_item( menu, list_get( menu->items, 2 ) );
return;
}
/* get entry -- MUST exist so don't check */
entry = list_entry( menu->items, menu->cur_item );
/* get next entry */
do {
entry = entry->prev;
if ( entry == menu->items->head )
entry = menu->items->tail->prev;
item = (Item*)entry->item;
if ( item->type == ITEM_SEPARATOR ) continue;
valid = 1;
} while ( !valid );
/* set as current */
menu_unselect_cur_item( menu );
menu_select_item( menu, entry->item );
}
void menu_down( Menu *menu )
{
ListEntry *entry;
Item *item;
int valid = 0;
/* no selection so far: select first item after caption */
if ( !menu->cur_item ) {
menu_select_item( menu, list_get( menu->items, 2 ) );
return;
}
/* get entry -- MUST exist so don't check */
entry = list_entry( menu->items, menu->cur_item );
/* get next entry */
do {
entry = entry->next;
if ( entry == menu->items->tail )
entry = menu->items->head->next;
item = (Item*)entry->item;
if ( item->type == ITEM_SEPARATOR ) continue;
valid = 1;
} while ( !valid );
/* set as current */
menu_unselect_cur_item( menu );
menu_select_item( menu, entry->item );
}
/*
====================================================================
Set fonts of menu and items.
====================================================================
*/
void menu_set_fonts(
Menu *menu, StkFont *cfont, StkFont *font, StkFont *hfont )
{
Item *item;
menu->cfont = cfont; menu->font = font; menu->hfont = hfont;
list_reset( menu->items );
while ( ( item = list_next( menu->items ) ) ) {
item->font = font;
item->hfont = hfont;
}
}
/*
====================================================================
Set background of menu and items.
====================================================================
*/
void menu_set_bkgnd( Menu *menu, SDL_Surface *bkgnd )
{
Item *item;
list_reset( menu->items );
while ( ( item = list_next( menu->items ) ) )
item->bkgnd = bkgnd;
}
|
