.
"
COPYRIGHT (c) 1995 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
Color subclass:#ColorValue
instanceVariableNames:''
classVariableNames:''
poolDictionaries:''
category:'Graphics-Support'
!
!ColorValue class methodsFor:'documentation'!
copyright
"
COPYRIGHT (c) 1995 by Claus Gittinger
All Rights Reserved
This software is furnished under a license and may be used
only in accordance with the terms of that license and with the
inclusion of the above copyright notice. This software may not
be provided or otherwise made available to, or used by, any
other person. No title to or ownership of the software is
hereby transferred.
"
!
version
"
$Header: /cvs/stx/stx/libview2/Attic/ClrValue.st,v 1.6 1995-09-09 02:29:30 claus Exp $
"
!
documentation
"
ColorValue is provided for ST-80 compatibility.
read the section on compatibility issues in the Color class's documentation.
"
! !
!ColorValue class methodsFor:'instance creation'!
doesNotUnderstand:aMessage
"catch other instance creation messages"
|clr|
(clr := self name:aMessage selector asString) notNil ifTrue:[
^ clr
].
^ super doesNotUnderstand:aMessage
"
ColorValue royalBlue
ColorValue funnyGreen
"
! !
!ColorValue class methodsFor:'instance creation'!
red:r green:g blue:b
"return a color from red, green and blue values.
The arguments, r, g and b must be in the range (0..1)"
^ Color red:r*100 green:g*100 blue:b*100
"
ColorValue red:0 green:1 blue:0
"
!
brightness:grey
"return a grey color.
The grey value is given in 0..1 instead of percent"
^ Color grey:(grey * 100)
"
ColorValue brightness:0.5
"
!
hue:hue saturation:sat brightness:light
"return a color.
The hue, saturation and brightness values are given in 0..1 instead of
degrees / percent"
^ Color hue:hue*360 light:light*100 saturation:sat*100
"
ColorValue hue:0 saturation:1 brightness:0.5
"
!
scaledRed:r scaledGreen:g scaledBlue:b
"ST-80 compatibility.
Return a color from r, g and b values;
the arguments, r, g and b are interpreted as 13bit
direct value (0..8191); 0/0/0 is black, 8191/8191/8191 is white."
^ Color red:(r * 100 / 8191)
green:(g * 100 / 8191)
blue:(b * 100 / 8191)
"
ColorValue scaledRed:8191 scaledGreen:8191 scaledBlue:8191
ColorValue scaledRed:0 scaledGreen:0 scaledBlue:0
ColorValue scaledRed:4092 scaledGreen:4092 scaledBlue:4092
"
! !