commit FS#9027 - conditional viewports

** BREAKS CURRENT WPS's  **
* %P has been removed, merged with the new %pb
* %pb is now %pb or %pb|bitmap|x|y|width|height| (any of those params can be - to use sane defaults... check wiki/task for more explaination)

* New %Vl and %Vd tags which are used to setup and display conditionaly displayed viewports (%Vl|<id>|<usual %V params>| to set up, then %Vd<id> to enable the viewport
* bumps the max allowed viewport count to 24
* you can setup 3 different progressbars in a WPS... max of one per viewport though

http://www.rockbox.org/tracker/task/9027?getfile=16785 is a simple perl script to convert old %P/%pb to the new %pb syntax

I'll commit changes to the cabbie wps soon which shows how to use %Vl/%Vd properly...

Reminder: %m will be removed soonish also so when fixing your WPS's remember to use conditional viewports to replace %m


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@17759 a1c6a512-1295-4272-9138-f99709370657

wps/cabbiev2.128x96x2.wps

@@ -2,14 +2,13 @@
 # derived from cabbie 2.0 default (C) 2007, Johannes Voggenthaler (Zinc Alloy)
 %wd
 %X|wpsbackdrop-128x96x2.bmp|
-%P|pb-128x96x2.bmp|
 %xl|A|lock-160x128x2.bmp|3|1|2|
 %xl|B|battery-160x128x2.bmp|26|2|10|
 %xl|C|volume-160x128x2.bmp|49|1|10|
 %xl|D|shuffle-160x128x2.bmp|72|2|
 %xl|E|repeat-160x128x2.bmp|93|0|4|
 %xl|F|playmode-160x128x2.bmp|112|1|5|
-%pb|7|1|126|61|
+%pb|pb-128x96x2.bmp|1|61|125|7|
 %V|0|83|128|13|1|0|3|
 %?mh<%xdAa|%xdAb>
 %?bp<%?bc<%xdBa|%xdBb>|%?bl<|%xdBc|%xdBd|%xdBe|%xdBf|%xdBg|%xdBh|%xdBi|%xdBj>>