Mercurial > hg > graal-compiler
diff visualizer/Filter/src/com/sun/hotspot/igv/filter/GradientColorFilter.java @ 4512:015fb895586b
Moved visualizer to new directory.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Tue, 07 Feb 2012 22:41:09 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/visualizer/Filter/src/com/sun/hotspot/igv/filter/GradientColorFilter.java Tue Feb 07 22:41:09 2012 +0100 @@ -0,0 +1,161 @@ +/* + * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code 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 + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ +package com.sun.hotspot.igv.filter; + +import com.sun.hotspot.igv.graph.Diagram; +import com.sun.hotspot.igv.graph.Figure; +import java.awt.*; +import java.awt.geom.AffineTransform; +import java.awt.image.Raster; +import java.util.List; + +/** + * Filter that colors nodes using a customizable color gradient, based on how + * a numeric property is located in a specified interval. + * + * @author Peter Hofer + */ +public class GradientColorFilter extends AbstractFilter { + + public static final String LINEAR = "LINEAR"; + public static final String LOGARITHMIC = "LOGARITHMIC"; + + private String propertyName = "probability"; + private float minValue = 0; + private float maxValue = 500; + private float[] fractions = {0, 0.5f, 1}; + private Color[] colors = {Color.BLUE, Color.YELLOW, Color.RED}; + private int shadeCount = 8; + private String mode = LINEAR; + + @Override + public String getName() { + return "Gradient Color Filter"; + } + + @Override + public void apply(Diagram d) { + boolean logarithmic = mode.equalsIgnoreCase(LOGARITHMIC); + if (!logarithmic && !mode.equalsIgnoreCase(LINEAR)) { + throw new RuntimeException("Unknown mode: " + mode); + } + + Rectangle bounds = new Rectangle(shadeCount, 1); + LinearGradientPaint lgp = new LinearGradientPaint(bounds.x, bounds.y, bounds.width, bounds.y, fractions, colors); + PaintContext context = lgp.createContext(null, bounds, bounds.getBounds2D(), AffineTransform.getTranslateInstance(0, 0), new RenderingHints(null)); + Raster raster = context.getRaster(bounds.x, bounds.y, bounds.width, bounds.height); + int[] rgb = raster.getPixels(bounds.x, bounds.y, bounds.width, bounds.height, (int[]) null); + Color[] shades = new Color[rgb.length / 3]; + for (int i = 0; i < shades.length; ++i) { + shades[i] = new Color(rgb[i * 3], rgb[i * 3 + 1], rgb[i * 3 + 2]); + } + + List<Figure> figures = d.getFigures(); + for (Figure f : figures) { + String property = f.getProperties().get(propertyName); + if (property != null) { + try { + float value = Float.parseFloat(property); + + Color nodeColor; + if (value <= minValue) { + nodeColor = colors[0]; + } else if (value >= maxValue) { + nodeColor = colors[colors.length - 1]; + } else { + double normalized = value - minValue; + double interval = maxValue - minValue; + int index; + // Use Math.ceil() to make values above zero distinguishable from zero + if (logarithmic) { + index = (int) Math.ceil(shades.length * Math.log(1 + normalized) / Math.log(1 + interval)); + } else { + index = (int) Math.ceil(shades.length * normalized / interval); + } + nodeColor = shades[index]; + } + f.setColor(nodeColor); + } catch (Exception e) { + e.printStackTrace(); + } + } + } + } + + public String getPropertyName() { + return propertyName; + } + + public void setPropertyName(String propertyName) { + this.propertyName = propertyName; + } + + public float getMinValue() { + return minValue; + } + + public void setMinValue(float minValue) { + this.minValue = minValue; + } + + public float getMaxValue() { + return maxValue; + } + + public void setMaxValue(float maxValue) { + this.maxValue = maxValue; + } + + public float[] getFractions() { + return fractions; + } + + public void setFractions(float[] fractions) { + this.fractions = fractions; + } + + public Color[] getColors() { + return colors; + } + + public void setColors(Color[] colors) { + this.colors = colors; + } + + public int getShadeCount() { + return shadeCount; + } + + public void setShadeCount(int shadeCount) { + this.shadeCount = shadeCount; + } + + public String getMode() { + return mode; + } + + public void setMode(String mode) { + this.mode = mode; + } +}