/* * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code 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 General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ /** * @test * @bug 8191428 * @summary Verifies if text view is not borken into multiple lines * @key headful * @run main/othervm -Dsun.java2d.uiScale=1.2 TestGlyphBreak */ import java.awt.FontMetrics; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.SwingUtilities; public class TestGlyphBreak { static JFrame f; static int btnHeight; static FontMetrics fm; public static void main(String[] args) throws Exception { SwingUtilities.invokeAndWait(() -> { String str = "Three!"; JButton b = new JButton(); b.setText(str); f = new JFrame(); f.add(b); f.pack(); f.setVisible(true); btnHeight = b.getHeight(); fm = b.getFontMetrics(b.getFont()); }); try { Thread.sleep(2000); } catch (InterruptedException ex) { } SwingUtilities.invokeAndWait(() -> f.dispose()); System.out.println("metrics getHeight " + fm.getHeight() + " button height " + btnHeight); // Check if text is broken into 2 lines, in which case button height // will be twice the string height if (btnHeight > 2*fm.getHeight()) { throw new RuntimeException("TextView is broken into different lines"); } } }