OSD menus initial version

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@8198 b3059339-0415-0410-9bf9-f77b7e298cf2

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;
+
+}