-/*******************************************************************************\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.utils.ui.color;\r
-\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.Collections;\r
-import java.util.List;\r
-\r
-import org.eclipse.swt.SWT;\r
-import org.eclipse.swt.graphics.Color;\r
-import org.eclipse.swt.graphics.GC;\r
-import org.eclipse.swt.graphics.Image;\r
-import org.eclipse.swt.widgets.Display;\r
-\r
-/**\r
- * \r
- * <p>\r
- * Color gradient between multiple colors\r
- * </p>\r
- * <p>\r
- * Supports RGB and HSV linear interpolation between colors\r
- * </p>\r
- * \r
- * @author Marko Luukkainen\r
- *\r
- */\r
-public class ColorGradient {\r
- public static final int RGB = 0;\r
-\r
- public static final int HSV = 1;\r
-\r
- protected ArrayList<ColorValue> values;\r
-\r
- protected int type;\r
- \r
- public ColorGradient() {\r
- this.values = new ArrayList<ColorValue>();\r
- this.type = RGB;\r
- }\r
-\r
- public ColorGradient(ColorGradient copyFrom) {\r
- this.values = new ArrayList<ColorValue>(copyFrom.values);\r
- this.type = copyFrom.type;\r
- }\r
-\r
- public ColorGradient(Collection<ColorValue> values) {\r
- this.values = new ArrayList<ColorValue>(values);\r
- Collections.sort(this.values, new ColorValueComparator());\r
- this.type = RGB;\r
- }\r
-\r
- public ColorGradient(ColorValue array[]) {\r
- this.values = new ArrayList<ColorValue>(array.length);\r
- for (ColorValue c : array) {\r
- values.add(c);\r
- }\r
- Collections.sort(this.values, new ColorValueComparator());\r
- this.type = RGB;\r
- }\r
-\r
- public ColorGradient(Collection<ColorValue> values, int type) {\r
- this.values = new ArrayList<ColorValue>(values);\r
- Collections.sort(this.values, new ColorValueComparator());\r
- this.type = type;\r
- }\r
-\r
- public ColorGradient(ColorValue array[], int type) {\r
- this.values = new ArrayList<ColorValue>();\r
- for (ColorValue c : array) {\r
- values.add(c);\r
- }\r
- Collections.sort(this.values, new ColorValueComparator());\r
- this.type = type;\r
- }\r
-\r
- /**\r
- * Interpolates color in RGB space\r
- * \r
- * @param value\r
- * @return\r
- */\r
- private byte[] getRGBColor(double value) {\r
- int index = 1;\r
- while (values.get(index).getValue() <= value && index < values.size()-1)\r
- index++;\r
-\r
- value -= values.get(index - 1).getValue();\r
- value /= (values.get(index).getValue() - values.get(index - 1).getValue());\r
- double valuei = 1.0 - value;\r
- byte color[] = new byte[] {\r
- (byte) Math.min(255.0, Math.floor(value * values.get(index).getColor().getR() + valuei * values.get(index - 1).getColor().getR())),\r
- (byte) Math.min(255.0, Math.floor(value * values.get(index).getColor().getG() + valuei * values.get(index - 1).getColor().getG())),\r
- (byte) Math.min(255.0, Math.floor(value * values.get(index).getColor().getB() + valuei * values.get(index - 1).getColor().getB())) };\r
- return color;\r
-\r
- }\r
-\r
- /**\r
- * Interpolates color in HSV space\r
- * \r
- * @param value\r
- * @return\r
- */\r
- private byte[] getHSVColor(double value) {\r
- int index = 1;\r
- while (values.get(index).getValue() <= value && index < values.size()-1)\r
- index++;\r
-\r
- value -= values.get(index - 1).getValue();\r
- value /= (values.get(index).getValue() - values.get(index - 1).getValue());\r
- double valuei = 1.0 - value;\r
- double h;\r
- if (Float.isNaN(values.get(index).getColor().getH())) {\r
- h = values.get(index-1).getColor().getH();\r
- } else if (Float.isNaN(values.get(index-1).getColor().getH())) {\r
- h = values.get(index).getColor().getH();\r
- } else {\r
- // selecting shortest direction between hues\r
- float angle = values.get(index).getColor().getH() - values.get(index - 1).getColor().getH();\r
- if (angle > 180.f)\r
- angle -= 360.f;\r
- else if (angle < -180.f)\r
- angle += 360.f;\r
- h = values.get(index - 1).getColor().getH() + value * angle;\r
- if (h > 360.f)\r
- h -= 360.f;\r
- else if (h < 0.f)\r
- h+= 360.f;\r
- }\r
- org.simantics.utils.ui.color.Color interpolated = new org.simantics.utils.ui.color.Color(h, value * values.get(index).getColor().getS() + valuei * values.get(index - 1).getColor().getS(),\r
- value * values.get(index).getColor().getV() + valuei * values.get(index - 1).getColor().getV());\r
- byte color[] = new byte[] { (byte) interpolated.getR(), (byte) interpolated.getG(), (byte) interpolated.getB() };\r
-\r
- return color;\r
-\r
- }\r
-\r
- /**\r
- * <p>\r
- * Returns gradient in array of bytes. Array is RGB order and int contains 3 * requested size of bytes.\r
- * </p>\r
- * <p>\r
- * If gradient contains only one color array is filled with that color\r
- * </p>\r
- * <p>\r
- * if gradient has no colors array is filled with white\r
- * </p>\r
- * @param size number of pixels\r
- * @return gradient in array of bytes\r
- */\r
- public byte[] getGradientArray(int size) {\r
- byte array[] = new byte[size * 3];\r
- if (values.size() > 1) {\r
- for (int i = 0; i < size; i++) {\r
- int index = i * 3;\r
- double value = values.get(0).getValue() + (values.get(values.size() - 1).getValue() - values.get(0).getValue()) * (double) i / (double) size;\r
- byte color[];\r
- if (type == RGB)\r
- color = getRGBColor(value);\r
- else\r
- color = getHSVColor(value);\r
- array[index] = color[0];\r
- array[index + 1] = color[1];\r
- array[index + 2] = color[2];\r
- }\r
- } else if (values.size() == 1) {\r
- byte color[] = new byte[3];\r
- color[0] = (byte)values.get(0).getColor().getR();\r
- color[1] = (byte)values.get(0).getColor().getG();\r
- color[2] = (byte)values.get(0).getColor().getB();\r
- for (int i = 0; i < size; i++) {\r
- int index = i * 3;\r
- array[index] = color[0];\r
- array[index + 1] = color[1];\r
- array[index + 2] = color[2];\r
- }\r
- } else {\r
- for (int i = 0; i < size; i++) {\r
- int index = i * 3;\r
- array[index] = (byte)255;\r
- array[index + 1] = (byte)255;\r
- array[index + 2] = (byte)255;\r
- }\r
- }\r
- return array;\r
- }\r
-\r
- /**\r
- * <p>\r
- * Returns gradient in image.\r
- * </p>\r
- * <p>\r
- * If gradient contains only one color image is filled with that color\r
- * </p>\r
- * <p>\r
- * if gradient has no colors image is filled with white\r
- * </p>\r
- * <p>\r
- * Style must be set to <code>SWT.HORIZONTAL</code> or <code>SWT.VERTICAL</code>\r
- * </p>\r
- * @param size number of pixels\r
- * @return gradient in array of bytes\r
- */\r
- \r
- public Image getGradientImage(int width, int height, int style) {\r
- Image image = new Image(Display.getCurrent(), width, height);\r
- GC gc = new GC(image);\r
- gc.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));\r
- gc.fillRectangle(0, 0, width, height);\r
- if (values.size() > 1) {\r
- if (SWT.HORIZONTAL == (style | SWT.HORIZONTAL)) {\r
- for (int x = 0; x < width; x++) {\r
- double value = values.get(0).getValue() + (values.get(values.size() - 1).getValue() - values.get(0).getValue()) * (double) x\r
- / (double) (width - 1);\r
- byte byteColor[];\r
- if (type == RGB)\r
- byteColor = getRGBColor(value);\r
- else\r
- byteColor = getHSVColor(value);\r
- Color color = new Color(Display.getCurrent(), byteColor[0] & 0xff, byteColor[1] & 0xff, byteColor[2] & 0xff);\r
- gc.setForeground(color);\r
- gc.drawLine(x, 0, x, height);\r
- color.dispose();\r
- }\r
- } else if (SWT.VERTICAL == (style | SWT.VERTICAL)){\r
- for (int y = 0; y < height; y++) {\r
- double value = values.get(0).getValue() + (values.get(values.size() - 1).getValue() - values.get(0).getValue()) * (double) y\r
- / (double) (height - 1);\r
- byte byteColor[];\r
- if (type == RGB)\r
- byteColor = getRGBColor(value);\r
- else\r
- byteColor = getHSVColor(value);\r
- Color color = new Color(Display.getCurrent(), byteColor[0] & 0xff, byteColor[1] & 0xff, byteColor[2] & 0xff);\r
- gc.setForeground(color);\r
- gc.drawLine(0, y, width, y);\r
- color.dispose();\r
- }\r
- } else {\r
- gc.dispose();\r
- image.dispose();\r
- SWT.error(SWT.ERROR_INVALID_ARGUMENT);\r
- }\r
- } else if (values.size() == 1) {\r
- Color color = new Color(Display.getCurrent(), values.get(0).getColor().getR(), values.get(0).getColor().getG(), values.get(0).getColor().getB()); \r
- gc.setBackground(color);\r
- gc.fillRectangle(0, 0, width, height);\r
- color.dispose();\r
- } else {\r
- gc.fillRectangle(0, 0, width, height);\r
- }\r
- gc.dispose();\r
- return image;\r
- }\r
- \r
- public int getType() {\r
- return type;\r
- }\r
- \r
- public List<ColorValue> getColorValues() {\r
- return values;\r
- }\r
- \r
- public ColorValue[] getColorValueArray() {\r
- return values.toArray(new ColorValue[values.size()]);\r
- }\r
- \r
- @Deprecated\r
- public void addCastorColorValue(ColorValue value) {\r
- values.add(value);\r
- Collections.sort(this.values, new ColorValueComparator());\r
- }\r
- \r
- @Deprecated\r
- public void setCastorType(int type) {\r
- this.type = type;\r
- }\r
- \r
- @Override\r
- public int hashCode() {\r
- int hash = 0x58fb3;\r
- for (ColorValue cv : values)\r
- hash ^= cv.hashCode();\r
- return hash;\r
- }\r
- \r
- @Override\r
- public boolean equals(Object obj) {\r
- if (obj == null)\r
- return false;\r
- if (obj.getClass() != getClass())\r
- return false;\r
- ColorGradient cg = (ColorGradient) obj;\r
- if (cg.type != type) return false;\r
- if (values.size()!=cg.values.size()) return false;\r
- if (!values.containsAll(cg.values)) return false;\r
- return true;\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.utils.ui.color;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.widgets.Display;
+
+/**
+ *
+ * <p>
+ * Color gradient between multiple colors
+ * </p>
+ * <p>
+ * Supports RGB and HSV linear interpolation between colors
+ * </p>
+ *
+ * @author Marko Luukkainen
+ *
+ */
+public class ColorGradient {
+ public static final int RGB = 0;
+
+ public static final int HSV = 1;
+
+ protected ArrayList<ColorValue> values;
+
+ protected int type;
+
+ public ColorGradient() {
+ this.values = new ArrayList<ColorValue>();
+ this.type = RGB;
+ }
+
+ public ColorGradient(ColorGradient copyFrom) {
+ this.values = new ArrayList<ColorValue>(copyFrom.values);
+ this.type = copyFrom.type;
+ }
+
+ public ColorGradient(Collection<ColorValue> values) {
+ this.values = new ArrayList<ColorValue>(values);
+ Collections.sort(this.values, new ColorValueComparator());
+ this.type = RGB;
+ }
+
+ public ColorGradient(ColorValue array[]) {
+ this.values = new ArrayList<ColorValue>(array.length);
+ for (ColorValue c : array) {
+ values.add(c);
+ }
+ Collections.sort(this.values, new ColorValueComparator());
+ this.type = RGB;
+ }
+
+ public ColorGradient(Collection<ColorValue> values, int type) {
+ this.values = new ArrayList<ColorValue>(values);
+ Collections.sort(this.values, new ColorValueComparator());
+ this.type = type;
+ }
+
+ public ColorGradient(ColorValue array[], int type) {
+ this.values = new ArrayList<ColorValue>();
+ for (ColorValue c : array) {
+ values.add(c);
+ }
+ Collections.sort(this.values, new ColorValueComparator());
+ this.type = type;
+ }
+
+ /**
+ * Interpolates color in RGB space
+ *
+ * @param value
+ * @return
+ */
+ private byte[] getRGBColor(double value) {
+ int index = 1;
+ while (values.get(index).getValue() <= value && index < values.size()-1)
+ index++;
+
+ value -= values.get(index - 1).getValue();
+ value /= (values.get(index).getValue() - values.get(index - 1).getValue());
+ double valuei = 1.0 - value;
+ byte color[] = new byte[] {
+ (byte) Math.min(255.0, Math.floor(value * values.get(index).getColor().getR() + valuei * values.get(index - 1).getColor().getR())),
+ (byte) Math.min(255.0, Math.floor(value * values.get(index).getColor().getG() + valuei * values.get(index - 1).getColor().getG())),
+ (byte) Math.min(255.0, Math.floor(value * values.get(index).getColor().getB() + valuei * values.get(index - 1).getColor().getB())) };
+ return color;
+
+ }
+
+ /**
+ * Interpolates color in HSV space
+ *
+ * @param value
+ * @return
+ */
+ private byte[] getHSVColor(double value) {
+ int index = 1;
+ while (values.get(index).getValue() <= value && index < values.size()-1)
+ index++;
+
+ value -= values.get(index - 1).getValue();
+ value /= (values.get(index).getValue() - values.get(index - 1).getValue());
+ double valuei = 1.0 - value;
+ double h;
+ if (Float.isNaN(values.get(index).getColor().getH())) {
+ h = values.get(index-1).getColor().getH();
+ } else if (Float.isNaN(values.get(index-1).getColor().getH())) {
+ h = values.get(index).getColor().getH();
+ } else {
+ // selecting shortest direction between hues
+ float angle = values.get(index).getColor().getH() - values.get(index - 1).getColor().getH();
+ if (angle > 180.f)
+ angle -= 360.f;
+ else if (angle < -180.f)
+ angle += 360.f;
+ h = values.get(index - 1).getColor().getH() + value * angle;
+ if (h > 360.f)
+ h -= 360.f;
+ else if (h < 0.f)
+ h+= 360.f;
+ }
+ org.simantics.utils.ui.color.Color interpolated = new org.simantics.utils.ui.color.Color(h, value * values.get(index).getColor().getS() + valuei * values.get(index - 1).getColor().getS(),
+ value * values.get(index).getColor().getV() + valuei * values.get(index - 1).getColor().getV());
+ byte color[] = new byte[] { (byte) interpolated.getR(), (byte) interpolated.getG(), (byte) interpolated.getB() };
+
+ return color;
+
+ }
+
+ /**
+ * <p>
+ * Returns gradient in array of bytes. Array is RGB order and int contains 3 * requested size of bytes.
+ * </p>
+ * <p>
+ * If gradient contains only one color array is filled with that color
+ * </p>
+ * <p>
+ * if gradient has no colors array is filled with white
+ * </p>
+ * @param size number of pixels
+ * @return gradient in array of bytes
+ */
+ public byte[] getGradientArray(int size) {
+ byte array[] = new byte[size * 3];
+ if (values.size() > 1) {
+ for (int i = 0; i < size; i++) {
+ int index = i * 3;
+ double value = values.get(0).getValue() + (values.get(values.size() - 1).getValue() - values.get(0).getValue()) * (double) i / (double) size;
+ byte color[];
+ if (type == RGB)
+ color = getRGBColor(value);
+ else
+ color = getHSVColor(value);
+ array[index] = color[0];
+ array[index + 1] = color[1];
+ array[index + 2] = color[2];
+ }
+ } else if (values.size() == 1) {
+ byte color[] = new byte[3];
+ color[0] = (byte)values.get(0).getColor().getR();
+ color[1] = (byte)values.get(0).getColor().getG();
+ color[2] = (byte)values.get(0).getColor().getB();
+ for (int i = 0; i < size; i++) {
+ int index = i * 3;
+ array[index] = color[0];
+ array[index + 1] = color[1];
+ array[index + 2] = color[2];
+ }
+ } else {
+ for (int i = 0; i < size; i++) {
+ int index = i * 3;
+ array[index] = (byte)255;
+ array[index + 1] = (byte)255;
+ array[index + 2] = (byte)255;
+ }
+ }
+ return array;
+ }
+
+ /**
+ * <p>
+ * Returns gradient in image.
+ * </p>
+ * <p>
+ * If gradient contains only one color image is filled with that color
+ * </p>
+ * <p>
+ * if gradient has no colors image is filled with white
+ * </p>
+ * <p>
+ * Style must be set to <code>SWT.HORIZONTAL</code> or <code>SWT.VERTICAL</code>
+ * </p>
+ * @param size number of pixels
+ * @return gradient in array of bytes
+ */
+
+ public Image getGradientImage(int width, int height, int style) {
+ Image image = new Image(Display.getCurrent(), width, height);
+ GC gc = new GC(image);
+ gc.setBackground(Display.getCurrent().getSystemColor(SWT.COLOR_WHITE));
+ gc.fillRectangle(0, 0, width, height);
+ if (values.size() > 1) {
+ if (SWT.HORIZONTAL == (style | SWT.HORIZONTAL)) {
+ for (int x = 0; x < width; x++) {
+ double value = values.get(0).getValue() + (values.get(values.size() - 1).getValue() - values.get(0).getValue()) * (double) x
+ / (double) (width - 1);
+ byte byteColor[];
+ if (type == RGB)
+ byteColor = getRGBColor(value);
+ else
+ byteColor = getHSVColor(value);
+ Color color = new Color(Display.getCurrent(), byteColor[0] & 0xff, byteColor[1] & 0xff, byteColor[2] & 0xff);
+ gc.setForeground(color);
+ gc.drawLine(x, 0, x, height);
+ color.dispose();
+ }
+ } else if (SWT.VERTICAL == (style | SWT.VERTICAL)){
+ for (int y = 0; y < height; y++) {
+ double value = values.get(0).getValue() + (values.get(values.size() - 1).getValue() - values.get(0).getValue()) * (double) y
+ / (double) (height - 1);
+ byte byteColor[];
+ if (type == RGB)
+ byteColor = getRGBColor(value);
+ else
+ byteColor = getHSVColor(value);
+ Color color = new Color(Display.getCurrent(), byteColor[0] & 0xff, byteColor[1] & 0xff, byteColor[2] & 0xff);
+ gc.setForeground(color);
+ gc.drawLine(0, y, width, y);
+ color.dispose();
+ }
+ } else {
+ gc.dispose();
+ image.dispose();
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+ }
+ } else if (values.size() == 1) {
+ Color color = new Color(Display.getCurrent(), values.get(0).getColor().getR(), values.get(0).getColor().getG(), values.get(0).getColor().getB());
+ gc.setBackground(color);
+ gc.fillRectangle(0, 0, width, height);
+ color.dispose();
+ } else {
+ gc.fillRectangle(0, 0, width, height);
+ }
+ gc.dispose();
+ return image;
+ }
+
+ public int getType() {
+ return type;
+ }
+
+ public List<ColorValue> getColorValues() {
+ return values;
+ }
+
+ public ColorValue[] getColorValueArray() {
+ return values.toArray(new ColorValue[values.size()]);
+ }
+
+ @Deprecated
+ public void addCastorColorValue(ColorValue value) {
+ values.add(value);
+ Collections.sort(this.values, new ColorValueComparator());
+ }
+
+ @Deprecated
+ public void setCastorType(int type) {
+ this.type = type;
+ }
+
+ @Override
+ public int hashCode() {
+ int hash = 0x58fb3;
+ for (ColorValue cv : values)
+ hash ^= cv.hashCode();
+ return hash;
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ if (obj == null)
+ return false;
+ if (obj.getClass() != getClass())
+ return false;
+ ColorGradient cg = (ColorGradient) obj;
+ if (cg.type != type) return false;
+ if (values.size()!=cg.values.size()) return false;
+ if (!values.containsAll(cg.values)) return false;
+ return true;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff