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COPYRIGHT (c) 1995 by Claus Gittinger
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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Color subclass:#ColorValue
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instanceVariableNames:''
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classVariableNames:''
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poolDictionaries:''
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category:'Graphics-Support'
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!
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ColorValue comment:'
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COPYRIGHT (c) 1995 by Claus Gittinger
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All Rights Reserved
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$Header: /cvs/stx/stx/libview2/ColorValue.st,v 1.3 1995-05-03 00:01:17 claus Exp $
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'!
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!ColorValue class methodsFor:'documentation'!
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copyright
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"
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COPYRIGHT (c) 1995 by Claus Gittinger
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All Rights Reserved
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This software is furnished under a license and may be used
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only in accordance with the terms of that license and with the
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inclusion of the above copyright notice. This software may not
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be provided or otherwise made available to, or used by, any
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other person. No title to or ownership of the software is
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hereby transferred.
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"
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!
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version
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"
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$Header: /cvs/stx/stx/libview2/ColorValue.st,v 1.3 1995-05-03 00:01:17 claus Exp $
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"
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!
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documentation
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"
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ColorValue is provided for ST-80 compatibility.
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read the section on compatibility issues in the Color class's documentation.
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"
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! !
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!ColorValue class methodsFor:'instance creation'!
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red:r green:g blue:b
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"return a color from red, green and blue values.
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The arguments, r, g and b must be in the range (0..1)"
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^ Color red:r*100 green:g*100 blue:b*100
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"
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ColorValue red:0 green:1 blue:0
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"
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!
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brightness:grey
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"return a grey color.
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The grey value is given in 0..1 instead of percent"
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^ Color grey:(grey * 100)
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"
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ColorValue brightness:0.5
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"
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!
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hue:hue saturation:sat brightness:light
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"return a color.
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The hue, saturation and brightness values are given in 0..1 instead of
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degrees / percent"
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^ Color hue:hue*360 light:light*100 saturation:sat*100
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"
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ColorValue hue:0 saturation:1 brightness:0.5
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"
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!
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scaledRed:r scaledGreen:g scaledBlue:b
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"ST-80 compatibility.
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Return a color from r, g and b values;
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the arguments, r, g and b are interpreted as 13bit
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direct value (0..8191); 0/0/0 is black, 8191/8191/8191 is white."
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^ Color red:(r * 100 / 8191)
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green:(g * 100 / 8191)
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blue:(b * 100 / 8191)
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"
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ColorValue scaledRed:8191 scaledGreen:8191 scaledBlue:8191
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ColorValue scaledRed:0 scaledGreen:0 scaledBlue:0
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ColorValue scaledRed:4092 scaledGreen:4092 scaledBlue:4092
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"
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! !
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