Java Graphics Draw drawPowerScaleLabel(Graphics g, int base, int power, int x, int y, boolean yAxisP)

Description

Draws a scale label of the form of the base base take to the power of power with the power displayed as a superscript of the base using the graphics in the Graphics object g.

License

Open Source License

Parameter

Parameter	Description
g	<code>java.awt.Graphics</code> object to the graphics.
base	int base.
power	int power.
x	int x-coordinate of the scale label.
y	int y-coordinate of the scale label.
yAxisP	boolean flag indicating whether the scale label is for the y-axis.

Declaration

private static void drawPowerScaleLabel(Graphics g, int base, int power, int x, int y, boolean yAxisP) 

Method Source Code

//package com.java2s;
/**//from w w w.j a v a2s. c  o  m
* PlotUtilities.java
*
*
* Cytobank (TM) is server and client software for web-based management, analysis,
* and sharing of flow cytometry data.
*
* Copyright (C) 2009 Cytobank, Inc. All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Cytobank, Inc.
* 659 Oak Grove Avenue #205
* Menlo Park, CA 94025
*
* http://www.cytobank.org
*/

import java.awt.*;

public class Main {
    /**
    * <p>
    * Draws a scale label of the form of the base base take to the power of
    * power with the power displayed as a superscript of the base using the
    * graphics in the <code>Graphics</code> object g.
    * </p>
    *
    * <p>
    * The scale label is drawn using the current font in the graphics in the
    * <code>Graphics</code> object g.
    * </p>
    *
    * @param g
    * <code>java.awt.Graphics</code> object to the graphics.
    * @param base
    * int base.
    * @param power
    * int power.
    * @param x
    * int x-coordinate of the scale label.
    * @param y
    * int y-coordinate of the scale label.
    * @param yAxisP
    * boolean flag indicating whether the scale label is for the
    * y-axis.
    */
    private static void drawPowerScaleLabel(Graphics g, int base, int power, int x, int y, boolean yAxisP) {
        if (g == null) {
            // If the graphics is null, then quit.
            return;
        }

        // Get the string for the base
        String baseString = Integer.toString(base);

        // Get the string for the power
        String powerString = Integer.toString(power);

        // Get the font metrics of the current font
        FontMetrics metrics = g.getFontMetrics();

        // Get the height of the current font
        int fontHeight = metrics.getHeight();

        // Get the width of the base string in the current font
        int baseWidth = metrics.stringWidth(baseString);

        // Get the width of the power string in the current font
        int powerWidth = metrics.stringWidth(powerString);

        if (yAxisP) {
            // If the scale label is for the y-axis, then draw the base and
            // power strings centered around the y-coordinate with the right at
            // the x-coordinate.
            g.drawString(baseString, x - (baseWidth + powerWidth), y + (int) ((double) fontHeight * 0.75d));
            g.drawString(powerString, x - powerWidth, y + (int) ((double) fontHeight * 0.25d));
        } else {
            // Otherwise, the scale label is for the x-axis, so draw the base
            // and power strings centered around the x-coordinate with the top
            // at the y-coordinate
            g.drawString(baseString, x - ((baseWidth + powerWidth) / 2), y + fontHeight + fontHeight / 2);
            g.drawString(powerString, x - ((baseWidth + powerWidth) / 2) + baseWidth, y + fontHeight);
        }
    }
}

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