April 2024 - This site, and Kamaelia are being updated. There is significant work needed, and PRs are welcome.
For examples and more explanations, see the module level docs.
Ticker(...) -> new Ticker component.
A pygame based component that displays incoming text as a ticker.
Keyword arguments (all optional):
- text_height -- Font size in points (default=39)
- line_spacing -- (default=text_height/7)
- background_colour -- (r,g,b) background colour of the ticker
(default=(128,48,128))
- text_colour -- (r,g,b) colour of text (default=(232,232,48))
- outline_colour -- (r,g,b) colour of the outline border
(default=background_colour)
- outline_width -- pixels width of the border (default=1)
- position -- (x,y) pixels location of the top left corner
- render_left -- pixels distance of left of text from left edge
(default=1)
- render_top -- pixels distance of top of text from top edge
(default=1)
- render_right -- pixels width of ticker (default=399)
- render_bottom -- pixels height of ticker (default=299)
NOTE: render_left and render_top currently behave incorrectly if not
set to 1
Inboxes
- control : NOT USED (yet)
- _displaycontrol : Shutdown messages & feedback
from Pygame Display service
- unpausebox : Any message unpauses the ticker
- pausebox : Any message pauses the ticker
- inbox : Specify (new) filename
- alphacontrol : Transparency of the ticker (0=fully
transparent, 255=fully opaque)
Outboxes
- outbox : NOT USED
- signal : NOT USED (yet)
- _displaysignal : Shutdown signalling & sending
requests to Pygame Display service
Methods defined here
Warning!
You should be using the inbox/outbox interface, not these methods
(except construction). This documentation is designed as a roadmap as to
their functionalilty for maintainers and new component developers.
__init__(self, **argd)
x.__init__(...) initializes x; see x.__class__.__doc__ for
signature
clearDisplay(self)
Clears the ticker of any existing text.
handleAlpha(self)
main(self)
Main loop.
renderBorder(self, display)
Draws a rectangle to form the 'border' of the ticker
requestDisplay(self,
**argd)
Generator. Gets a display surface from the Pygame Display
service.
Makes the request, then yields 1 until a display surface is
returned.
waitBox(self, boxname)
Generator. yields 1 until data ready on the named inbox.
Feedback
Got a problem with the documentation? Something unclear that could be
clearer? Want to help improve it? Constructive criticism is very welcome
- especially if you can suggest a better rewording!
Please leave you feedback here in reply to the documentation thread in the
Kamaelia blog.
-- Automatic documentation generator, 05 Jun 2009 at 03:01:38
UTC/GMT
