Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.utils.ui / src / org / simantics / utils / ui / gfx / HSVAdjustmentImageDescriptor.java

diff --git a/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/gfx/HSVAdjustmentImageDescriptor.java b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/gfx/HSVAdjustmentImageDescriptor.java
new file mode 100644 (file)
index 0000000..dbc1cb2
--- /dev/null
+++ b/bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/gfx/HSVAdjustmentImageDescriptor.java
@@ -0,0 +1,165 @@
+/*******************************************************************************\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