jfreechart example source code file (AxisState.java)

This example jfreechart source code file (AxisState.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - jfreechart tags/keywords

axisstate, axisstate, list, list, rectangleedge, rectangleedge, util

The jfreechart AxisState.java source code

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation; either version 2.1 of the License, or
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
 * USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
 * in the United States and other countries.]
 *
 * --------------
 * AxisState.java
 * --------------
 * (C) Copyright 2003-2008, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * Changes
 * -------
 * 03-Nov-2003 : Added standard header (DG);
 * 07-Nov-2003 : Added 'max' attribute (DG);
 *
 */

package org.jfree.chart.axis;

import java.util.List;

import org.jfree.ui.RectangleEdge;

/**
 * Instances of this class are used to carry state information for an axis
 * during the drawing process.  By retaining this information in a separate
 * object, it is possible for multiple threads to draw the same axis to
 * different output targets (each drawing will maintain separate state
 * information).
 */
public class AxisState {

    /** The cursor position. */
    private double cursor;

    /** The axis ticks. */
    private List ticks;

    /** The maximum width/height. */
    private double max;

    /**
     * Creates a new axis state.
     */
    public AxisState() {
        this(0.0);
    }

    /**
     * Creates a new axis state.
     *
     * @param cursor  the cursor.
     */
    public AxisState(double cursor) {
        this.cursor = cursor;
        this.ticks = new java.util.ArrayList();
    }

    /**
     * Returns the cursor position.
     *
     * @return The cursor position.
     */
    public double getCursor() {
        return this.cursor;
    }

    /**
     * Sets the cursor position.
     *
     * @param cursor  the cursor position.
     */
    public void setCursor(double cursor) {
        this.cursor = cursor;
    }

    /**
     * Moves the cursor outwards by the specified number of units.
     *
     * @param units  the units.
     * @param edge  the edge.
     */
    public void moveCursor(double units, RectangleEdge edge) {
        if (edge == RectangleEdge.TOP) {
            cursorUp(units);
        }
        else if (edge == RectangleEdge.BOTTOM) {
            cursorDown(units);
        }
        else if (edge == RectangleEdge.LEFT) {
            cursorLeft(units);
        }
        else if (edge == RectangleEdge.RIGHT) {
            cursorRight(units);
        }
    }

    /**
     * Moves the cursor up by the specified number of Java 2D units.
     *
     * @param units  the units.
     */
    public void cursorUp(double units) {
        this.cursor = this.cursor - units;
    }

    /**
     * Moves the cursor down by the specified number of Java 2D units.
     *
     * @param units  the units.
     */
    public void cursorDown(double units) {
        this.cursor = this.cursor + units;
    }

    /**
     * Moves the cursor left by the specified number of Java 2D units.
     *
     * @param units  the units.
     */
    public void cursorLeft(double units) {
        this.cursor = this.cursor - units;
    }

    /**
     * Moves the cursor right by the specified number of Java 2D units.
     *
     * @param units  the units.
     */
    public void cursorRight(double units) {
        this.cursor = this.cursor + units;
    }

    /**
     * Returns the list of ticks.
     *
     * @return The list of ticks.
     */
    public List getTicks() {
        return this.ticks;
    }

    /**
     * Sets the list of ticks.
     *
     * @param ticks  the ticks.
     */
    public void setTicks(List ticks) {
        this.ticks = ticks;
    }

    /**
     * Returns the maximum width/height.
     *
     * @return The maximum width/height.
     */
    public double getMax() {
        return this.max;
    }

    /**
     * Sets the maximum width/height.
     *
     * @param max the maximum width/height.
     */
    public void setMax(double max) {
        this.max = max;
    }
}