-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.scenegraph.utils;\r
-\r
-import java.awt.Color;\r
-\r
-/**\r
- * @author Tuukka Lehtonen\r
- */\r
-public class ColorUtil {\r
-\r
- /**\r
- * Blend two colors (AWT) by linearly interpolating between the specified\r
- * ratio (0-1). 0 means <code>src</code> color only and 1 means\r
- * <code>dst</code> color only.\r
- * \r
- * @param src\r
- * @param dst\r
- * @param ratio a value between [0,1]\r
- * @return a new instance of Color, containing the interpolated result.\r
- * Remember to dispose of this color when its no longer needed!\r
- */\r
- public static Color blend(Color src, Color dst, double ratio) {\r
- if (ratio < 0 || ratio > 1)\r
- throw new IllegalArgumentException("expected t in [0,1], got t " + ratio);\r
-\r
- double r1 = src.getRed();\r
- double g1 = src.getGreen();\r
- double b1 = src.getBlue();\r
- double a1 = src.getAlpha();\r
- double r2 = dst.getRed();\r
- double g2 = dst.getGreen();\r
- double b2 = dst.getBlue();\r
- double a2 = dst.getAlpha();\r
-\r
- double r = r1 + (r2 - r1) * ratio;\r
- double g = g1 + (g2 - g1) * ratio;\r
- double b = b1 + (b2 - b1) * ratio;\r
- double a = a1 + (a2 - a1) * ratio;\r
-\r
- return new Color((int) r, (int) g, (int) b, (int) a);\r
- }\r
-\r
- /**\r
- * @param c\r
- * @param alpha\r
- * @return\r
- */\r
- public static Color withAlpha(Color c, int alpha) {\r
- return new Color(c.getRed(), c.getGreen(), c.getBlue(), alpha);\r
- }\r
-\r
- /**\r
- * @param c\r
- * @param alpha\r
- * @return\r
- */\r
- public static Color withAlpha(Color c, float alpha) {\r
- return withAlpha(c, (int) (255.0f * alpha));\r
- }\r
- \r
- public static Color gamma(Color c, double y) {\r
- double oneOverGamma = 1.0D / y;\r
- int r = c.getRed();\r
- int g = c.getGreen();\r
- int b = c.getBlue();\r
- r = (int) ( 255. * ( Math.pow( r / 255.0D, oneOverGamma ) + 0.5D ) );\r
- g = (int) ( 255. * ( Math.pow( g / 255.0D, oneOverGamma ) + 0.5D ) );\r
- b = (int) ( 255. * ( Math.pow( b / 255.0D, oneOverGamma ) + 0.5D ) );\r
- if ( r > 255 ) r = 255; \r
- if ( g > 255 ) g = 255; \r
- if ( b > 255 ) b = 255; \r
- \r
- return new Color(r, g, b, c.getAlpha());\r
- } \r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.scenegraph.utils;
+
+import java.awt.Color;
+
+/**
+ * @author Tuukka Lehtonen
+ */
+public class ColorUtil {
+
+ /**
+ * Blend two colors (AWT) by linearly interpolating between the specified
+ * ratio (0-1). 0 means <code>src</code> color only and 1 means
+ * <code>dst</code> color only.
+ *
+ * @param src
+ * @param dst
+ * @param ratio a value between [0,1]
+ * @return a new instance of Color, containing the interpolated result.
+ * Remember to dispose of this color when its no longer needed!
+ */
+ public static Color blend(Color src, Color dst, double ratio) {
+ if (ratio < 0 || ratio > 1)
+ throw new IllegalArgumentException("expected t in [0,1], got t " + ratio);
+
+ double r1 = src.getRed();
+ double g1 = src.getGreen();
+ double b1 = src.getBlue();
+ double a1 = src.getAlpha();
+ double r2 = dst.getRed();
+ double g2 = dst.getGreen();
+ double b2 = dst.getBlue();
+ double a2 = dst.getAlpha();
+
+ double r = r1 + (r2 - r1) * ratio;
+ double g = g1 + (g2 - g1) * ratio;
+ double b = b1 + (b2 - b1) * ratio;
+ double a = a1 + (a2 - a1) * ratio;
+
+ return new Color((int) r, (int) g, (int) b, (int) a);
+ }
+
+ /**
+ * @param c
+ * @param alpha
+ * @return
+ */
+ public static Color withAlpha(Color c, int alpha) {
+ return new Color(c.getRed(), c.getGreen(), c.getBlue(), alpha);
+ }
+
+ /**
+ * @param c
+ * @param alpha
+ * @return
+ */
+ public static Color withAlpha(Color c, float alpha) {
+ return withAlpha(c, (int) (255.0f * alpha));
+ }
+
+ public static Color gamma(Color c, double y) {
+ double oneOverGamma = 1.0D / y;
+ int r = c.getRed();
+ int g = c.getGreen();
+ int b = c.getBlue();
+ r = (int) ( 255. * ( Math.pow( r / 255.0D, oneOverGamma ) + 0.5D ) );
+ g = (int) ( 255. * ( Math.pow( g / 255.0D, oneOverGamma ) + 0.5D ) );
+ b = (int) ( 255. * ( Math.pow( b / 255.0D, oneOverGamma ) + 0.5D ) );
+ if ( r > 255 ) r = 255;
+ if ( g > 255 ) g = 255;
+ if ( b > 255 ) b = 255;
+
+ return new Color(r, g, b, c.getAlpha());
+ }
+
+}
Code Review / simantics / platform.git / blobdiff