cleanup: reindent audio_out.[ch]
[mplayer/greg.git] / libmenu / menu_list.c
blob85649e5f703d2ad428133e0d8504eacb8b027ce8
1 /*
2 * This file is part of MPlayer.
4 * MPlayer is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * MPlayer is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with MPlayer; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
19 #include <stdlib.h>
20 #include <stdio.h>
21 #include <ctype.h>
22 #include <string.h>
24 #include "config.h"
26 #include "libmpcodecs/img_format.h"
27 #include "libmpcodecs/mp_image.h"
29 #include "m_struct.h"
30 #include "menu.h"
32 #include "sub/font_load.h"
33 #include "input/keycodes.h"
35 #define IMPL 1
36 #include "menu_list.h"
38 static int mouse_x;
39 static int mouse_y;
40 static int selection_x;
41 static int selection_y;
42 static int selection_w;
43 static int selection_h;
45 #define mpriv (menu->priv)
47 void menu_list_draw(menu_t* menu,mp_image_t* mpi) {
48 int x = mpriv->x;
49 int y = mpriv->y;
50 int i;
51 int h = mpriv->h;
52 int w = mpriv->w;
53 int dh = 0,dw = 0;
54 int bx, dx, dy = 0;
55 int need_h = 0,need_w = 0,ptr_l,sidx = 0;
56 int th,count = 0;
57 int bg_w;
58 int line_h;
59 list_entry_t* m;
61 if(mpriv->count < 1)
62 return;
64 if(h <= 0) h = mpi->height;
65 if(w <= 0) w = mpi->width;
66 dh = h - 2*mpriv->minb;
67 dw = w - 2*mpriv->minb;
68 ptr_l = mpriv->ptr ? menu_text_length(mpriv->ptr) : 0;
69 // mpi is too small
70 if(h - vo_font->height <= 0 || w - ptr_l <= 0 || dw <= 0 || dh <= 0)
71 return;
73 line_h = mpriv->vspace + vo_font->height;
74 th = menu_text_num_lines(mpriv->title,dw) * line_h + mpriv->vspace;
76 // the selected item is hidden, find a visible one
77 if(mpriv->current->hide) {
78 // try the next
79 for(m = mpriv->current->next ; m ; m = m->next)
80 if(!m->hide) break;
81 if(!m) // or the previous
82 for(m = mpriv->current->prev ; m ; m = m->prev)
83 if(!m->hide) break;
84 if(m) mpriv->current = m;
85 else ptr_l = 0;
88 for(i = 0, m = mpriv->menu ; m ; m = m->next, i++) {
89 int ll;
90 if(m->hide) continue;
91 ll = menu_text_length(m->txt);
92 if(ptr_l + ll > need_w) need_w = ptr_l + ll;
93 if(m == mpriv->current) sidx = i;
94 count++;
96 if(need_w > dw) need_w = dw;
97 if(x >= 0)
98 x += mpriv->minb;
99 if(y > 0)
100 y += mpriv->minb;
101 else
102 y = mpriv->minb;
104 need_h = count * line_h - mpriv->vspace;
105 if( need_h + th > dh) {
106 int start,end;
107 mpriv->disp_lines = (dh + mpriv->vspace - th) / line_h;
108 if(mpriv->disp_lines < 4) {
109 th = 0;
110 mpriv->disp_lines = (dh + mpriv->vspace) / line_h;
112 // Too smoll
113 if(mpriv->disp_lines < 1) return;
114 need_h = mpriv->disp_lines * line_h - mpriv->vspace;
116 start = sidx - (mpriv->disp_lines/2);
117 if(start < 0) start = 0;
118 end = start + mpriv->disp_lines;
119 if(end > count) {
120 end = count;
121 if(end - start < mpriv->disp_lines)
122 start = end - mpriv->disp_lines < 0 ? 0 : end - mpriv->disp_lines;
124 m = mpriv->menu;
125 for(i = 0 ; m->next && i < start ; ) {
126 if(!m->hide) i++;
127 m = m->next;
129 } else {
130 m = mpriv->menu;
131 mpriv->disp_lines = count;
134 bg_w = need_w+2*mpriv->minb;
135 if(th > 0) {
136 int tw,th2;
137 menu_text_size(mpriv->title,dw,mpriv->vspace,1,&tw,&th2);
138 if(mpriv->title_bg >= 0) {
139 if(tw+2*mpriv->minb > bg_w) bg_w = tw+2*mpriv->minb;
140 menu_draw_box(mpi,mpriv->title_bg,mpriv->title_bg_alpha,
141 x < 0 ? (mpi->w-bg_w)/2 : x-mpriv->minb,dy+y-mpriv->vspace/2,bg_w,th);
143 menu_draw_text_full(mpi,mpriv->title,
144 x < 0 ? mpi->w / 2 : x,
145 dy+y, x < 0 ? dw : (tw > need_w ? tw : need_w), 0,
146 mpriv->vspace,1,
147 MENU_TEXT_TOP|MENU_TEXT_HCENTER,
148 MENU_TEXT_TOP|(x < 0 ? MENU_TEXT_HCENTER :MENU_TEXT_LEFT));
149 dy += th;
152 dx = x < 0 ? (mpi->w - need_w) / 2 : x;
153 bx = x < 0 ? (mpi->w - bg_w) / 2 : x - mpriv->minb;
155 // If mouse moved, try to update selected menu item by the mouse position.
156 if (menu_mouse_pos_updated) {
157 mouse_x = menu_mouse_x * mpi->width;
158 mouse_y = menu_mouse_y * mpi->height;
159 if (mouse_x >= bx && mouse_x < bx + bg_w) {
160 int by = dy + y - mpriv->vspace / 2;
161 int max_by = dh + y + mpriv->vspace / 2;
162 if (mouse_y >= by && mouse_y < max_by) {
163 int cur_no = (mouse_y - by) / line_h;
164 list_entry_t* e = m;
165 for (i = 0; e != NULL; e = e->next) {
166 if (e->hide) continue;
167 if (i == cur_no) {
168 mpriv->current = e;
169 break;
171 ++i;
175 menu_mouse_pos_updated = 0;
178 for( ; m != NULL && dy + vo_font->height < dh ; m = m->next ) {
179 if(m->hide) continue;
180 if(m == mpriv->current) {
181 // Record rectangle of current selection box.
182 selection_x = bx;
183 selection_y = dy + y - mpriv->vspace / 2;
184 selection_w = bg_w;
185 selection_h = line_h;
187 if(mpriv->ptr_bg >= 0)
188 menu_draw_box(mpi,mpriv->ptr_bg,mpriv->ptr_bg_alpha,
189 bx, dy + y - mpriv->vspace / 2,
190 bg_w, line_h);
191 if(ptr_l > 0)
192 menu_draw_text_full(mpi,mpriv->ptr,
194 dy+y,dw,dh - dy,
195 mpriv->vspace,0,
196 MENU_TEXT_TOP|MENU_TEXT_LEFT,
197 MENU_TEXT_TOP|MENU_TEXT_LEFT);
198 } else if(mpriv->item_bg >= 0)
199 menu_draw_box(mpi,mpriv->item_bg,mpriv->item_bg_alpha,
200 bx, dy + y - mpriv->vspace / 2,
201 bg_w, line_h);
202 menu_draw_text_full(mpi,m->txt,
203 dx + ptr_l,
204 dy+y,dw-ptr_l,dh - dy,
205 mpriv->vspace,0,
206 MENU_TEXT_TOP|MENU_TEXT_LEFT,
207 MENU_TEXT_TOP|MENU_TEXT_LEFT);
208 dy += line_h;
213 void menu_list_read_cmd(menu_t* menu,int cmd) {
214 list_entry_t* m;
215 int i;
216 switch(cmd) {
217 case MENU_CMD_UP:
218 while(mpriv->current->prev) {
219 mpriv->current = mpriv->current->prev;
220 if(!mpriv->current->hide) return;
222 for( ; mpriv->current->next != NULL ; mpriv->current = mpriv->current->next)
223 /* NOTHING */;
224 if(!mpriv->current->hide) return;
225 while(mpriv->current->prev) {
226 mpriv->current = mpriv->current->prev;
227 if(!mpriv->current->hide) return;
229 break;
230 case MENU_CMD_DOWN:
231 while(mpriv->current->next) {
232 mpriv->current = mpriv->current->next;
233 if(!mpriv->current->hide) return;
235 mpriv->current = mpriv->menu;
236 if(!mpriv->current->hide) return;
237 while(mpriv->current->next) {
238 mpriv->current = mpriv->current->next;
239 if(!mpriv->current->hide) return;
241 break;
242 case MENU_CMD_HOME:
243 mpriv->current = mpriv->menu;
244 break;
245 case MENU_CMD_END:
246 for(m = mpriv->current ; m && m->next ; m = m->next)
247 /**/;
248 if(m)
249 mpriv->current = m;
250 break;
251 case MENU_CMD_PAGE_UP:
252 for(i = 0, m = mpriv->current ; m && m->prev && i < mpriv->disp_lines ; m = m->prev, i++)
253 /**/;
254 if(m)
255 mpriv->current = m;
256 break;
257 case MENU_CMD_PAGE_DOWN:
258 for(i = 0, m = mpriv->current ; m && m->next && i < mpriv->disp_lines ; m = m->next, i++)
259 /**/;
260 if(m)
261 mpriv->current = m;
262 break;
263 case MENU_CMD_LEFT:
264 case MENU_CMD_CANCEL:
265 menu->show = 0;
266 menu->cl = 1;
267 break;
268 case MENU_CMD_CLICK:
269 if (mouse_x >= selection_x && mouse_x < selection_x + selection_w &&
270 mouse_y >= selection_y && mouse_y < selection_y + selection_h)
271 menu_read_cmd(menu, MENU_CMD_OK);
272 break;
276 int menu_list_jump_to_key(menu_t* menu,int c) {
277 if(c < 256 && isalnum(c)) {
278 list_entry_t* e = mpriv->current;
279 if(e->txt[0] == c) e = e->next;
280 for( ; e ; e = e->next) {
281 if(e->txt[0] == c) {
282 mpriv->current = e;
283 return 1;
286 for(e = mpriv->menu ; e ; e = e->next) {
287 if(e->txt[0] == c) {
288 mpriv->current = e;
289 return 1;
292 return 1;
294 return 0;
297 void menu_list_add_entry(menu_t* menu,list_entry_t* entry) {
298 list_entry_t* l;
299 mpriv->count++;
301 if(mpriv->menu == NULL) {
302 mpriv->menu = mpriv->current = entry;
303 return;
306 for(l = mpriv->menu ; l->next != NULL ; l = l->next)
307 /* NOP */;
308 l->next = entry;
309 entry->prev = l;
312 void menu_list_init(menu_t* menu) {
313 if(!mpriv)
314 mpriv = calloc(1,sizeof(struct menu_priv_s));
318 void menu_list_uninit(menu_t* menu,free_entry_t free_func) {
319 list_entry_t *i,*j;
321 if(!free_func) free_func = (free_entry_t)free;
323 for(i = mpriv->menu ; i != NULL ; ) {
324 j = i->next;
325 free_func(i);
326 i = j;
329 mpriv->menu = mpriv->current = NULL;