New feature for the %xd() (display a preloaded image) skin tag.

It can now automatically load the correct subimage from a strip (assuming the strip is in the correct order)  by giving a tag for the 2nd param.
example: %xd(F, %mp) which is equivilant to %?mp<%xd(Fa)|%xd(Fb)|%xd(Fc)|%xd(Fd)|%xd(Fe)>
You can also set the subimage offset.. i.e %xd(E, %mm, -1) which means "show nothing for the first value of %mm and use the bitmap strip for the remaining values"

if a tag+offset is <0 or greater than the number of subimages in a strip he image is cleared (I'm open to changing this if someone has a better idea)

cabbiev2.176x220x16.wps is an example of how to use this

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@27717 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 9 insertions, 0 deletions

diff --git a/apps/gui/skin_engine/wps_internals.h b/apps/gui/skin_engine/wps_internals.h
index 709dbc6ff7..e42fc5a53b 100644
--- a/apps/gui/skin_engine/wps_internals.h
+++ b/apps/gui/skin_engine/wps_internals.h
@@ -49,6 +49,9 @@
 #define WPS_ALIGN_CENTER 64
 #define WPS_ALIGN_LEFT 128
 
+
+#define TOKEN_VALUE_ONLY 0xDEADD0D0
+
 #ifdef HAVE_ALBUMART
 
 /* albumart definitions */
@@ -80,6 +83,12 @@ struct gui_img {
     int display;
 };
 
+struct image_display {
+    char label;
+    int subimage;
+    struct wps_token *token; /* the token to get the subimage number from */
+    int offset; /* offset into the bitmap strip to start */
+};
 
 struct progressbar {
     enum skin_token_type type;