--- /dev/null
+/*******************************************************************************\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
+/*\r
+ * 27.12.2006\r
+ */\r
+package org.simantics.utils.ui.gfx;\r
+\r
+import org.eclipse.jface.resource.ImageDescriptor;\r
+import org.eclipse.swt.SWT;\r
+import org.eclipse.swt.graphics.ImageData;\r
+import org.eclipse.swt.graphics.PaletteData;\r
+import org.eclipse.swt.graphics.RGB;\r
+\r
+/**\r
+ * HSVAdjustmentImageDescriptor\r
+ * @author Toni Kalajainen\r
+ */\r
+@SuppressWarnings("deprecation")\r
+public class HSVAdjustmentImageDescriptor extends ImageDescriptor {\r
+ \r
+ public static final PaletteData DEFAULT_PALETTEDATA = \r
+ new PaletteData(0x00ff0000, 0x0000ff00, 0x000000ff);\r
+ \r
+ ImageDescriptor desc;\r
+ float h,s,v;\r
+\r
+ /**\r
+ * Adjust hue value\r
+ * @param image image\r
+ * @param hue 0..360\r
+ * @return\r
+ */\r
+ public static ImageDescriptor adjustHue(ImageDescriptor image, float hue)\r
+ {\r
+ assert(image!=null);\r
+ if (hue==0) return image;\r
+ hue = mod360(hue);\r
+ return new HSVAdjustmentImageDescriptor(image, hue, 1.0f, 1.0f);\r
+ }\r
+ \r
+ /**\r
+ * Adjust saturation\r
+ * @param image image\r
+ * @param saturation 0..* (1.0=normal)\r
+ * @return\r
+ */\r
+ public static ImageDescriptor adjust(ImageDescriptor image, float hue, float saturation, float value)\r
+ {\r
+ assert(image!=null);\r
+ if (saturation==1.0f && value==1.0f && hue==0.0f) return image;\r
+ return new HSVAdjustmentImageDescriptor(image, hue, saturation, value);\r
+ }\r
+\r
+ /**\r
+ * Adjust value\r
+ * @param image image\r
+ * @param value 0..* (1.0=normal)\r
+ * @return\r
+ */\r
+ public static ImageDescriptor adjustSaturation(ImageDescriptor image, float saturation)\r
+ {\r
+ assert(image!=null);\r
+ if (saturation==1.0f) return image;\r
+ return new HSVAdjustmentImageDescriptor(image, 0.0f, saturation, 1.0f);\r
+ }\r
+ \r
+ /**\r
+ * Adjust hue, saturation and value\r
+ * @param image image\r
+ * @param hue 0..360\r
+ * @param saturation 0..* (1.0=normal)\r
+ * @param value 0..* (1.0=normal)\r
+ * @return\r
+ */\r
+ public static ImageDescriptor adjustValue(ImageDescriptor image, float value)\r
+ {\r
+ assert(image!=null);\r
+ if (value==1.0f) return image;\r
+ return new HSVAdjustmentImageDescriptor(image, 0.0f, 1.0f, value);\r
+ }\r
+ \r
+ \r
+\r
+ /**\r
+ * Adjusts hue, saturation and value of image\r
+ * \r
+ * @param image\r
+ * @param hue hue adjustment 0..360\r
+ * @param saturation factor 0..* (1.0=no change)\r
+ * @param value factor 0..* (1.0=no change)\r
+ */\r
+ public HSVAdjustmentImageDescriptor(ImageDescriptor image, float hue, float saturation, float value)\r
+ {\r
+ desc = image;\r
+ this.h = hue;\r
+ this.s = saturation;\r
+ this.v = value;\r
+ }\r
+\r
+ @Override\r
+ public ImageData getImageData() {\r
+ PaletteData palette = DEFAULT_PALETTEDATA; \r
+ ImageData orig = ImageCache.getInstance().getImage(desc).getImageData();\r
+ ImageData id = new ImageData(orig.width, orig.height, 24, palette);\r
+ id.setAlpha(0,0,0);\r
+ PaletteData origPalette = orig.palette; \r
+ \r
+ ImageData mask = null;\r
+ if (orig.getTransparencyType()==SWT.TRANSPARENCY_MASK ||\r
+ orig.getTransparencyType()==SWT.TRANSPARENCY_PIXEL) \r
+ mask = orig.getTransparencyMask();\r
+ \r
+ for (int x=0; x<orig.width; x++)\r
+ for (int y=0; y<orig.height; y++) {\r
+ RGB rgb = origPalette.getRGB( orig.getPixel(x, y) );\r
+ float hsv[] = rgb.getHSB();\r
+ hsv[0] = mod360(hsv[0] + h);\r
+ hsv[1] *= s;\r
+ hsv[2] *= v;\r
+ rgb = new RGB(hsv[0], hsv[1], hsv[2]);\r
+ id.setPixel(x, y, palette.getPixel(rgb));\r
+ int alpha;\r
+ if (mask==null) \r
+ alpha = orig.getAlpha(x, y);\r
+ else\r
+ alpha = (mask.getPixel(x, y)==1?255:0);\r
+ id.setAlpha(x, y, alpha);\r
+ } \r
+ return id;\r
+ }\r
+\r
+ public static float mod360(float value)\r
+ {\r
+ int d;\r
+ if (value>=0)\r
+ d = ((int)value)/360;\r
+ else\r
+ d = (((int)value)/360)-1;\r
+ return value-d*360.0f;\r
+ }\r
+ \r
+ @Override\r
+ public boolean equals(Object obj) {\r
+ if (obj==this) return true;\r
+ if (!(obj instanceof HSVAdjustmentImageDescriptor))\r
+ return false;\r
+ HSVAdjustmentImageDescriptor other = (HSVAdjustmentImageDescriptor) obj;\r
+ return other.desc.equals(desc) && other.h==h && other.s==s && other.v==v; \r
+ }\r
+ \r
+ @Override\r
+ public int hashCode() {\r
+ return desc.hashCode() ^ (new Float(h).hashCode()) ^ (new Float(s).hashCode()) ^ (new Float(v).hashCode());\r
+ }\r
+ \r
+}\r