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Add methods for extracting red, green and blue color portions from an int color.

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This commit is contained in:
Andreas Schildbach 2014-08-15 11:50:49 +02:00
parent a8efe538c1
commit aee3fba9cf
2 changed files with 50 additions and 0 deletions
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15
enabler/src/de/schildbach/pte/dto/Style.java
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@ -110,4 +110,19 @@ public class Style implements Serializable
{
return (0xFF << 24) | (red << 16) | (green << 8) | blue;
}
public static int red(final int color)
{
return (color >> 16) & 0xff;
}
public static int green(final int color)
{
return (color >> 8) & 0xff;
}
public static int blue(final int color)
{
return color & 0xff;
}
}

35
enabler/test/de/schildbach/pte/dto/StyleTest.java Normal file
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@ -0,0 +1,35 @@
/*
* Copyright 2014 the original author or authors.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package de.schildbach.pte.dto;
import static org.junit.Assert.assertEquals;
import org.junit.Test;
/**
* @author Andreas Schildbach
*/
public class StyleTest
{
@Test
public void roundTripRGB()
{
final int color = Style.parseColor("#123456");
assertEquals(color, Style.rgb(Style.red(color), Style.green(color), Style.blue(color)));
}
}