summaryrefslogtreecommitdiff
path: root/source/gui.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/gui.c')
-rw-r--r--source/gui.c118
1 files changed, 118 insertions, 0 deletions
diff --git a/source/gui.c b/source/gui.c
new file mode 100644
index 0000000..45b0817
--- /dev/null
+++ b/source/gui.c
@@ -0,0 +1,118 @@
+/*
+ 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;
+}
+