Calculate the start point for drawing a TextLayout. - Java 2D Graphics

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Description

Calculate the start point for drawing a TextLayout.

Demo Code


//package com.java2s;

import java.awt.Point;
import java.awt.Rectangle;
import java.awt.font.TextLayout;

import java.awt.geom.Rectangle2D;

public class Main {
    /**/* w  w w .j  ava 2  s. co m*/
     * Calculate the start point for drawing a TextLayout. 
     * @param textLayout
     * @param bounds the constraints of rendering.
     * @param p the point's x y values will be reset if p is not null.
     * @return a new Point object will be returned if p is null. Otherwise,
     * the passed Point object will be returned.
     */
    public static Point getDrawPoint(TextLayout textLayout,
            Rectangle bounds, Point p) {
        Rectangle2D textBounds = textLayout.getBounds();
        int x = (int) (bounds.x + bounds.width / 2 - textBounds.getWidth() / 2);
        int y = (int) (bounds.y + bounds.height / 2 - textBounds
                .getHeight() / 2);
        y += textLayout.getAscent();
        if (p == null)
            return new Point(x, y);
        else {
            p.x = x;
            p.y = y;
            return p;
        }
    }
}

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