Here you can find the source of fitString(String s, Graphics2D g2, Rectangle2D rect)
public static boolean fitString(String s, Graphics2D g2, Rectangle2D rect)
//package com.java2s; /**//from w w w . ja v a 2 s . c o m * * Copyright 2017 Florian Erhard * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ import java.awt.Graphics2D; import java.awt.geom.Rectangle2D; public class Main { public static boolean fitString(String s, Graphics2D g2, Rectangle2D rect) { return getFitStringScale(s, g2, rect) >= 1; } public static double getFitStringScale(String s, Graphics2D g2, Rectangle2D rect) { Rectangle2D des = g2.getFontMetrics().getStringBounds(s, g2); double xratio = rect.getWidth() / des.getWidth(); double yratio = rect.getHeight() / des.getHeight(); double min = Math.min(xratio, yratio); return min; } }