diff options
Diffstat (limited to 'libmenu/menu_list.c')
| -rw-r--r-- | libmenu/menu_list.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/libmenu/menu_list.c b/libmenu/menu_list.c new file mode 100644 index 0000000000..ffcd4921fd --- /dev/null +++ b/libmenu/menu_list.c @@ -0,0 +1,225 @@ + +#include <stdlib.h> +#include <stdio.h> +#include <ctype.h> + +#include "../config.h" + +#include "img_format.h" +#include "mp_image.h" + +#include "m_struct.h" +#include "menu.h" + +#include "../libvo/font_load.h" +#include "../linux/keycodes.h" + +#define IMPL 1 +#include "menu_list.h" + +#define mpriv (menu->priv) + +void menu_list_draw(menu_t* menu,mp_image_t* mpi) { + int x = mpriv->x; + int y = mpriv->y; + int i; + int h = mpriv->h; + int w = mpriv->w; + int dh = 0,dw = 0; + int dy = 0; + int need_h = 0,need_w = 0,ptr_l = menu_text_length(mpriv->ptr) + 10,sidx = 0; + int th; + list_entry_t* m; + + if(mpriv->count < 1) + return; + + if(h <= 0) h = mpi->height; + if(w <= 0) w = mpi->width; + dh = h - 2*mpriv->minb; + dw = w - 2*mpriv->minb; + ptr_l = menu_text_length(mpriv->ptr); + // mpi is too small + if(h - vo_font->height <= 0 || w - ptr_l <= 0 || dw <= 0 || dh <= 0) + return; + + th = menu_text_num_lines(mpriv->title,dw) * (mpriv->vspace + vo_font->height) + mpriv->vspace; + + for(i = 0, m = mpriv->menu ; m ; m = m->next, i++) { + int ll = menu_text_length(m->txt); + if(ptr_l + ll > need_w) need_w = ptr_l + ll; + if(m == mpriv->current) sidx = i; + } + if(need_w > dw) need_w = dw; + if(x > 0) + x += mpriv->minb; + if(y > 0) + y += mpriv->minb; + else + y = mpriv->minb; + + need_h = mpriv->count * (mpriv->vspace + vo_font->height) - mpriv->vspace; + if( need_h + th > dh) { + int start,end; + int maxl = (dh + mpriv->vspace - th) / (mpriv->vspace + vo_font->height); + if(maxl < 4) { + th = 0; + maxl = (dh + mpriv->vspace) / ( vo_font->height + mpriv->vspace); + } + // Too smoll + if(maxl < 1) return; + need_h = maxl*(mpriv->vspace + vo_font->height) - mpriv->vspace; + + start = sidx - (maxl/2); + if(start < 0) start = 0; + end = start + maxl; + if(end > mpriv->count) { + end = mpriv->count; + if(end - start < maxl) + start = end - maxl < 0 ? 0 : end - maxl; + } + m = mpriv->menu; + for(i = 0 ; m->next && i < start ; i++) + m = m->next; + } else + m = mpriv->menu; + + if(th > 0) { + menu_draw_text_full(mpi,mpriv->title, + x < 0 ? mpi->w / 2 : x, + dy+y,dw,0, + mpriv->vspace,1, + MENU_TEXT_TOP|MENU_TEXT_HCENTER, + MENU_TEXT_TOP|(x < 0 ? MENU_TEXT_HCENTER :MENU_TEXT_LEFT)); + dy += th; + } + + for( ; m != NULL && dy + vo_font->height < dh ; m = m->next ) { + if(m == mpriv->current) + menu_draw_text_full(mpi,mpriv->ptr, + x < 0 ? (mpi->w - need_w) / 2 + ptr_l : x, + dy+y,dw,dh - dy, + mpriv->vspace,0, + MENU_TEXT_TOP|(x < 0 ? MENU_TEXT_RIGHT :MENU_TEXT_LEFT) , + MENU_TEXT_TOP|(x < 0 ? MENU_TEXT_RIGHT :MENU_TEXT_LEFT)); + menu_draw_text_full(mpi,m->txt, + x < 0 ? (mpi->w - need_w) / 2 + ptr_l : x + ptr_l, + dy+y,dw-ptr_l,dh - dy, + mpriv->vspace,0, + MENU_TEXT_TOP|MENU_TEXT_LEFT, + MENU_TEXT_TOP|MENU_TEXT_LEFT); + dy += vo_font->height + mpriv->vspace; + } + +} + +void menu_list_read_cmd(menu_t* menu,int cmd) { + switch(cmd) { + case MENU_CMD_UP: + if(mpriv->current->prev) { + mpriv->current = mpriv->current->prev; + } else { + for( ; mpriv->current->next != NULL ; mpriv->current = mpriv->current->next) + /* NOTHING */; + } break; + case MENU_CMD_DOWN: + if(mpriv->current->next) { + mpriv->current = mpriv->current->next; + } else { + mpriv->current = mpriv->menu; + } break; + case MENU_CMD_CANCEL: + menu->show = 0; + menu->cl = 1; + break; + } +} + +void menu_list_jump_to_key(menu_t* menu,int c) { + if(isalnum(c)) { + list_entry_t* e = mpriv->current; + if(e->txt[0] == c) e = e->next; + for( ; e ; e = e->next) { + if(e->txt[0] == c) { + mpriv->current = e; + return; + } + } + for(e = mpriv->menu ; e ; e = e->next) { + if(e->txt[0] == c) { + mpriv->current = e; + return; + } + } + } else + menu_dflt_read_key(menu,c); +} + +void menu_list_read_key(menu_t* menu,int c,int jump_to) { + list_entry_t* m; + int i; + switch(c) { + case KEY_HOME: + mpriv->current = mpriv->menu; + break; + case KEY_END: + for(m = mpriv->current ; m && m->next ; m = m->next) + /**/; + if(m) + mpriv->current = m; + break; + case KEY_PAGE_UP: + for(i = 0, m = mpriv->current ; m && m->prev && i < 10 ; m = m->prev, i++) + /**/; + if(m) + mpriv->current = m; + break; + case KEY_PAGE_DOWN: + for(i = 0, m = mpriv->current ; m && m->next && i < 10 ; m = m->next, i++) + /**/; + if(m) + mpriv->current = m; + break; + default: + if(jump_to) + menu_list_jump_to_key(menu,c); + else + menu_dflt_read_key(menu,c); + } +} + +void menu_list_add_entry(menu_t* menu,list_entry_t* entry) { + list_entry_t* l; + mpriv->count++; + + if(mpriv->menu == NULL) { + mpriv->menu = mpriv->current = entry; + return; + } + + for(l = mpriv->menu ; l->next != NULL ; l = l->next) + /* NOP */; + l->next = entry; + entry->prev = l; +} + +void menu_list_init(menu_t* menu) { + if(!mpriv) + mpriv = calloc(1,sizeof(struct menu_priv_s)); + +} + +void menu_list_uninit(menu_t* menu,free_entry_t free_func) { + list_entry_t *i,*j; + + if(!free_func) free_func = (free_entry_t)free; + + for(i = mpriv->menu ; i != NULL ; ) { + j = i->next; + free_func(i); + i = j; + } + + mpriv->menu = mpriv->current = NULL; + +} |