Chapter 13. Advanced Topics
168
All full list of the available tags are given in appendix section
(page
); some of
the more powerful concepts in theme design are discussed below.
•
All characters not preceded by % are displayed as typed.
•
Lines beginning with # are comments and will be ignored.
Note:
Keep in mind that your player’s resolution is 160
×
128
×
2 (with the last number
b
giving the colour depth in bits) when designing your own WPS, or if you use a WPS
designed for another target. The resolution of the remote is 128
×
96
×
2 pixels.
Viewports
By default, a viewport filling the whole screen contains all the elements defined in each
theme file. The elements in this viewport are displayed with the same background/
foreground shades and the text is rendered in the same font as in the main menu. To
change this behaviour a custom viewport can be defined. A viewport is a rectangular
window on the screen with its own foreground/background shades. This window also
has variable dimensions. To define a viewport a line starting
%V(...
has to be present
in the theme file. The full syntax will be explained later in this section. All elements
placed before the line defining a viewport are displayed in the default viewport. Elements
defined after a viewport declaration are drawn within that viewport. Loading images
(see Appendix section
(page
)) should be done within the default viewport.
A viewport ends either with the end of the file, or with the next viewport declaration
line. Viewports sharing the same coordinates and dimensions cannot be displayed at the
same time. Viewports cannot be layered
transparently
over one another. Subsequent
viewports will be drawn over any other viewports already drawn onto that area of the
screen.
Viewport Declaration Syntax
%V(x,y,[width],[height],[font]) %Vf([fgshade]) %Vb([bgshade])
•
%Vf and %Vb set the foreground and background shade of grey respectively.
•
‘fgshade’ and ‘bgshade’ are numbers in the range 0 (= black) to 3 (= white).
•
‘font’ is a number: 0 is the built-in system font, 1 is the current menu font, and
2-9 are additional skin loaded fonts (see section
(page
•
Only the coordinates
have
to be specified. Leaving the other definitions blank will
set them to their default values.
Note:
The correct number of commas with hyphens in blank fields are still needed.
b
The Rockbox manual
(version 3.14)
Iaudio M5
