GraphTheme.java

/*
 * GraphTheme.java
 *
 * Copyright (C) 2009-12 by RStudio, Inc.
 *
 * Unless you have received this program directly from RStudio pursuant
 * to the terms of a commercial license agreement with RStudio, then
 * this program is licensed to you under the terms of version 3 of the
 * GNU Affero General Public License. This program is distributed WITHOUT
 * ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
 * AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
 *
 */
package org.rstudio.studio.client.workbench.views.vcs.dialog.graph;

import com.google.gwt.canvas.dom.client.CssColor;

import java.util.HashMap;

public class GraphTheme
{
   public GraphTheme(String className)
   {
      className_ = className;
   }

   public int getColumnWidth()
   {
      return 10;
   }

   public int getRowHeight()
   {
      return 24;
   }

   public double getStrokeWidth()
   {
      return 2.0;
   }

   public double getCircleRadius()
   {
      return 3.0;
   }

   public CssColor getColorForId(int id)
   {
      if (!colors_.containsKey(id))
      {
         colors_.put(id, CssColor.make(
               randomColorValue(),
               randomColorValue(),
               randomColorValue()
         ).value());
      }
      return CssColor.make(colors_.get(id));
   }

   private int randomColorValue()
   {
      return 60 + (int)(Math.random() * 140);
   }

   public double getVerticalLinePadding()
   {
      return 2.0;
   }

   public String getImgClassName()
   {
      return className_;
   }

   private final String className_;

   private static HashMap<Integer, String> colors_ = new HashMap<Integer, String>();
}