001    /*
002     * Copyright (C) 2008-2010 by Holger Arndt
003     *
004     * This file is part of the Universal Java Matrix Package (UJMP).
005     * See the NOTICE file distributed with this work for additional
006     * information regarding copyright ownership and licensing.
007     *
008     * UJMP is free software; you can redistribute it and/or modify
009     * it under the terms of the GNU Lesser General Public License as
010     * published by the Free Software Foundation; either version 2
011     * of the License, or (at your option) any later version.
012     *
013     * UJMP is distributed in the hope that it will be useful,
014     * but WITHOUT ANY WARRANTY; without even the implied warranty of
015     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
016     * GNU Lesser General Public License for more details.
017     *
018     * You should have received a copy of the GNU Lesser General Public
019     * License along with UJMP; if not, write to the
020     * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
021     * Boston, MA  02110-1301  USA
022     */
023    
024    package org.ujmp.gui.plot;
025    
026    import java.awt.Graphics;
027    import java.awt.Graphics2D;
028    
029    public class YGrid {
030    
031            private PlotSettings plotSettings = null;
032    
033            public YGrid(PlotSettings plotSettings) {
034                    this.plotSettings = plotSettings;
035            }
036    
037            public void paintComponent(Graphics g) {
038                    Graphics2D g2d = (Graphics2D) g;
039                    int x1 = plotSettings.getWidth() - 1;
040                    int x2 = 0;
041                    g2d.setStroke(plotSettings.getYGridStroke());
042                    g2d.setColor(plotSettings.getYGridColor());
043                    double yf = plotSettings.getYFactor();
044                    double ygs = plotSettings.getYGridStepSize();
045                    for (double y = plotSettings.getMinYValue(); y < plotSettings.getMaxYValue(); y += ygs) {
046                            int y1 = (int) (plotSettings.getHeight() - 1 - y * yf + plotSettings.getMinYValue() * yf);
047                            int y2 = y1;
048                            g2d.drawLine(x1, y1, x2, y2);
049                    }
050            }
051    }