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/*
ds81 - Nintendo DS ZX81 emulator.
Copyright (C) 2006 Ian Cowburn
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.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
$Id$
*/
#include <nds.h>
#include <string.h>
#include "framebuffer.h"
/* ---------------------------------------- PUBLIC INTERFACES
*/
int GUI_Menu(const char *opts[])
{
int x,y;
int h;
int w;
int no;
int sel;
int f;
bool done;
bool defer;
w=0;
h=0;
sel=0;
done=false;
defer=false;
for(no=0;opts[no];no++)
{
h+=16;
if (strlen(opts[no])>w)
{
w=strlen(opts[no]);
}
}
w=w*8+16;
x=SCREEN_WIDTH/2-w/2;
y=SCREEN_HEIGHT/2-h/2;
while(!done)
{
uint32 key=0;
FB_FillBox(x,y,w,h,FB_RGB(0,0,0));
FB_Box(x,y,w,h,FB_RGB(31,31,31));
FB_FillBox(x+1,y+sel*16+1,w-2,14,FB_RGB(8,8,31));
for(f=0;f<no;f++)
{
FB_Centre(opts[f],y+4+f*16,FB_RGB(31,31,31),-1);
}
do
{
swiWaitForVBlank();
} while(!defer && !(key=keysDownRepeat()));
if (defer)
{
do
{
swiWaitForVBlank();
} while (keysHeld()&KEY_TOUCH);
done=true;
}
else
{
if (key & (KEY_A|KEY_B|KEY_X|KEY_Y))
{
done=true;
}
else if ((key & KEY_UP) && sel)
{
sel--;
}
else if ((key & KEY_DOWN) && sel<no-1)
{
sel++;
}
else if (key & KEY_TOUCH)
{
touchPosition tp=touchReadXY();
if (tp.px>=x && tp.px<(w+w) && tp.py>=y && tp.py<(y+h))
{
defer=true;
sel=(tp.py-y)/16;
}
}
}
}
return sel;
}
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