get Centering Start Point - Java 2D Graphics

Java examples for 2D Graphics:Font

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Description

get Centering Start Point

Demo Code


import org.apache.log4j.Logger;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.font.FontRenderContext;
import java.awt.font.LineMetrics;
import java.util.*;
import java.util.regex.Pattern;

public class Main{
    public static final Point getCenteringStartPoint(Graphics2D g,
            String string, Font font, Point center) {
        int x = (int) getCenteringStartX(g, string, font, center.x);
        int y = (int) getCenteringStartY(g, string, font, center.y);
        return new Point(x, y);
    }/*from  w ww  .j a  v  a2s.  c  o m*/
    public static final float getCenteringStartX(Graphics2D g,
            String string, Font font, float centerX) {
        float textWidth = getTextWidth(g, string, font);
        return centerX - (textWidth / 2);
    }
    public static final float getCenteringStartY(Graphics2D g,
            String string, Font font, float centerY) {
        float textHeight = getTextHeight(g, string, font);
        return centerY - (textHeight / 2);
    }
    public static final float getTextWidth(Graphics2D g, String string,
            Font font) {
        return g.getFontMetrics(font).stringWidth(string);
    }
    public static final float getTextHeight(Graphics2D g, String string,
            Font font) {
        LineMetrics lm = font.getLineMetrics(string,
                g.getFontRenderContext());
        return lm.getHeight();
    }
}

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