Mercurial > hg > graal-compiler
view visualizer/Filter/src/com/sun/hotspot/igv/filter/GradientColorFilter.java @ 7829:a44887443b0c
support for inner classes (local/member) in meta API
author | Michael Haupt <michael.haupt@oracle.com> |
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date | Wed, 20 Feb 2013 14:10:47 +0100 |
parents | 015fb895586b |
children |
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/* * 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; } }