Re: [pygtk] style question again

[Randolph Fritz]

On Thu, Mar 02, 2000 at 10:47:06AM +0100, Javi Roman wrote:
> I have:
> 
>   ...
>   style = self.window.get_style ().copy ()
> style.bg[STATE_NORMAL] = style.black
> self.window.set_style (style)
> ...
> 
> This works correctly, but i want a red background color, and i try:
> 
>   ...
>   style.bg[STATE_NORMAL] = style.red
>   ...
> 
> This fail. I think that i don't understand very well. Can anybody help
> me?
> 
> 

Side issue:
  Suggestion to James: make the GDK colormap allocation function accept
  floating point values from 0 to 1 as well as 16-bit integers.  Or does
  it do this already?

The "bg" element is an "array" of five GDKcolors, which have to be
allocated.  (style.black is a provided constant, but there is no
style.red.)  GDKcolors, in turn, are created per X-window (blargh)
from three 16-bit RGB values.
   
# set the background style
red = (1,0,0)
for i in range(5):
style.bg[i] = _alloc_color (o.window, red)


# Allocate a GDKcolor from RGB values expressed as numbers
# from 0 to 1.0
def _alloc_color (widget, RGB):
RGB48 = map (lambda f: f * ((1<<16) - 1), RGB)
return apply (widget.get_colormap().alloc, RGB48)

Suggestion to James: provide a variant of alloc() which will accept
floating point values in the interval [0, 1.0] directly.
-- 
Randolph
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Re: [pygtk] style question again

[James Henstridge]

There isn't a style.red attribute.  To create the colour red in the
colormap used by the widget, use one of the following:
  red = widget.get_colormap().alloc('red')
  red = widget.get_colormap().alloc('#ff')
  red = widget.get_colormap().alloc(0x, 0, 0)

All these forms are equivalent (the last is a little bit faster, but the
first allows the system administrator to redefine red to something else in
/usr/lib/X11/rgb.txt :)

James.

--
Email: [EMAIL PROTECTED]
WWW:   http://www.daa.com.au/~james/


On Thu, 2 Mar 2000, Javi Roman wrote:

> I have:
> 
>   ...
>   style = self.window.get_style ().copy ()
> style.bg[STATE_NORMAL] = style.black
> self.window.set_style (style)
> ...
> 
> This works correctly, but i want a red background color, and i try:
> 
>   ...
>   style.bg[STATE_NORMAL] = style.red
>   ...
> 
> This fail. I think that i don't understand very well. Can anybody help
> me?
> 
> 
> Regards.
> To unsubscribe: echo "unsubscribe" | mail [EMAIL PROTECTED]
> 

To unsubscribe: echo "unsubscribe" | mail [EMAIL PROTECTED]

[pygtk] style question again

[Javi Roman]

I have:

...
style = self.window.get_style ().copy ()
style.bg[STATE_NORMAL] = style.black
self.window.set_style (style)
...

This works correctly, but i want a red background color, and i try:

...
style.bg[STATE_NORMAL] = style.red
...

This fail. I think that i don't understand very well. Can anybody help
me?


Regards.
To unsubscribe: echo "unsubscribe" | mail [EMAIL PROTECTED]