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,sidx = 0;
int th,count = 0;
int bg_w;
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 = mpriv->ptr ? menu_text_length(mpriv->ptr) : 0;
// 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;
// the selected item is hidden, find a visible one
if(mpriv->current->hide) {
// try the next
for(m = mpriv->current->next ; m ; m = m->next)
if(!m->hide) break;
if(!m) // or the previous
for(m = mpriv->current->prev ; m ; m = m->prev)
if(!m->hide) break;
if(m) mpriv->current = m;
else ptr_l = 0;
}
for(i = 0, m = mpriv->menu ; m ; m = m->next, i++) {
int ll;
if(m->hide) continue;
ll = menu_text_length(m->txt);
if(ptr_l + ll > need_w) need_w = ptr_l + ll;
if(m == mpriv->current) sidx = i;
count++;
}
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 = count * (mpriv->vspace + vo_font->height) - mpriv->vspace;
if( need_h + th > dh) {
int start,end;
mpriv->disp_lines = (dh + mpriv->vspace - th) / (mpriv->vspace + vo_font->height);
if(mpriv->disp_lines < 4) {
th = 0;
mpriv->disp_lines = (dh + mpriv->vspace) / ( vo_font->height + mpriv->vspace);
}
// Too smoll
if(mpriv->disp_lines < 1) return;
need_h = mpriv->disp_lines*(mpriv->vspace + vo_font->height) - mpriv->vspace;
start = sidx - (mpriv->disp_lines/2);
if(start < 0) start = 0;
end = start + mpriv->disp_lines;
if(end > count) {
end = count;
if(end - start < mpriv->disp_lines)
start = end - mpriv->disp_lines < 0 ? 0 : end - mpriv->disp_lines;
}
m = mpriv->menu;
for(i = 0 ; m->next && i < start ; ) {
if(!m->hide) i++;
m = m->next;
}
} else {
m = mpriv->menu;
mpriv->disp_lines = count;
}
bg_w = need_w+2*mpriv->minb;
if(th > 0) {
if(mpriv->title_bg >= 0) {
int tw,th2;
menu_text_size(mpriv->title,dw,mpriv->vspace,1,&tw,&th2);
if(tw+2*mpriv->minb > bg_w) bg_w = tw+2*mpriv->minb;
menu_draw_box(mpi,mpriv->title_bg,mpriv->title_bg_alpha,
x < 0 ? (mpi->w-bg_w)/2 : x-mpriv->minb,dy+y-mpriv->vspace/2,bg_w,th);
}
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->hide) continue;
if(m == mpriv->current) {
if(mpriv->ptr_bg >= 0)
menu_draw_box(mpi,mpriv->ptr_bg,mpriv->ptr_bg_alpha,
x < 0 ? (mpi->w-bg_w)/2 : x-mpriv->minb,dy+y-mpriv->vspace/2,
bg_w,vo_font->height + mpriv->vspace);
if(ptr_l > 0)
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));
} else if(mpriv->item_bg >= 0)
menu_draw_box(mpi,mpriv->item_bg,mpriv->item_bg_alpha,
x < 0 ? (mpi->w-bg_w)/2 : x-mpriv->minb,dy+y-mpriv->vspace/2,
bg_w,vo_font->height + mpriv->vspace);
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_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 bx, dx, dy = 0;
int need_h = 0,need_w = 0,ptr_l,sidx = 0;
int th,count = 0;
int bg_w;
int line_h;
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 = mpriv->ptr ? menu_text_length(mpriv->ptr) : 0;
// mpi is too small
if(h - vo_font->height <= 0 || w - ptr_l <= 0 || dw <= 0 || dh <= 0)
return;
line_h = mpriv->vspace + vo_font->height;
th = menu_text_num_lines(mpriv->title,dw) * line_h + mpriv->vspace;
// the selected item is hidden, find a visible one
if(mpriv->current->hide) {
// try the next
for(m = mpriv->current->next ; m ; m = m->next)
if(!m->hide) break;
if(!m) // or the previous
for(m = mpriv->current->prev ; m ; m = m->prev)
if(!m->hide) break;
if(m) mpriv->current = m;
else ptr_l = 0;
}
for(i = 0, m = mpriv->menu ; m ; m = m->next, i++) {
int ll;
if(m->hide) continue;
ll = menu_text_length(m->txt);
if(ptr_l + ll > need_w) need_w = ptr_l + ll;
if(m == mpriv->current) sidx = i;
count++;
}
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 = count * line_h - mpriv->vspace;
if( need_h + th > dh) {
int start,end;
mpriv->disp_lines = (dh + mpriv->vspace - th) / line_h;
if(mpriv->disp_lines < 4) {
th = 0;
mpriv->disp_lines = (dh + mpriv->vspace) / line_h;
}
// Too smoll
if(mpriv->disp_lines < 1) return;
need_h = mpriv->disp_lines * line_h - mpriv->vspace;
start = sidx - (mpriv->disp_lines/2);
if(start < 0) start = 0;
end = start + mpriv->disp_lines;
if(end > count) {
end = count;
if(end - start < mpriv->disp_lines)
start = end - mpriv->disp_lines < 0 ? 0 : end - mpriv->disp_lines;
}
m = mpriv->menu;
for(i = 0 ; m->next && i < start ; ) {
if(!m->hide) i++;
m = m->next;
}
} else {
m = mpriv->menu;
mpriv->disp_lines = count;
}
bg_w = need_w+2*mpriv->minb;
if(th > 0) {
int tw,th2;
menu_text_size(mpriv->title,dw,mpriv->vspace,1,&tw,&th2);
if(mpriv->title_bg >= 0) {
if(tw+2*mpriv->minb > bg_w) bg_w = tw+2*mpriv->minb;
menu_draw_box(mpi,mpriv->title_bg,mpriv->title_bg_alpha,
x < 0 ? (mpi->w-bg_w)/2 : x-mpriv->minb,dy+y-mpriv->vspace/2,bg_w,th);
}
menu_draw_text_full(mpi,mpriv->title,
x < 0 ? mpi->w / 2 : x,
dy+y, x < 0 ? dw : (tw > need_w ? tw : need_w), 0,
mpriv->vspace,1,
MENU_TEXT_TOP|MENU_TEXT_HCENTER,
MENU_TEXT_TOP|(x < 0 ? MENU_TEXT_HCENTER :MENU_TEXT_LEFT));
dy += th;
}
dx = x < 0 ? (mpi->w - need_w) / 2 : x;
bx = x < 0 ? (mpi->w - bg_w) / 2 : x - mpriv->minb;
// If mouse moved, try to update selected menu item by the mouse position.
if (menu_mouse_pos_updated) {
mouse_x = menu_mouse_x * mpi->width;
mouse_y = menu_mouse_y * mpi->height;
if (mouse_x >= bx && mouse_x < bx + bg_w) {
int by = dy + y - mpriv->vspace / 2;
int max_by = dh + y + mpriv->vspace / 2;
if (mouse_y >= by && mouse_y < max_by) {
int cur_no = (mouse_y - by) / line_h;
list_entry_t* e = m;
for (i = 0; e != NULL; e = e->next) {
if (e->hide) continue;
if (i == cur_no) {
mpriv->current = e;
break;
}
++i;
}
}
}
menu_mouse_pos_updated = 0;
}
for( ; m != NULL && dy + vo_font->height < dh ; m = m->next ) {
if(m->hide) continue;
if(m == mpriv->current) {
// Record rectangle of current selection box.
selection_x = bx;
selection_y = dy + y - mpriv->vspace / 2;
selection_w = bg_w;
selection_h = line_h;
if(mpriv->ptr_bg >= 0)
menu_draw_box(mpi,mpriv->ptr_bg,mpriv->ptr_bg_alpha,
bx, dy + y - mpriv->vspace / 2,
bg_w, line_h);
if(ptr_l > 0)
menu_draw_text_full(mpi,mpriv->ptr,
dx,
dy+y,dw,dh - dy,
mpriv->vspace,0,
MENU_TEXT_TOP|MENU_TEXT_LEFT,
MENU_TEXT_TOP|MENU_TEXT_LEFT);
} else if(mpriv->item_bg >= 0)
menu_draw_box(mpi,mpriv->item_bg,mpriv->item_bg_alpha,
bx, dy + y - mpriv->vspace / 2,
bg_w, line_h);
menu_draw_text_full(mpi,m->txt,
dx + 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 += line_h;
}
}