/*

 * 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.

 *

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/**

 * @test

 * @key headful

 * @summary tests that we don't crash during exit if font strikes were disposed

 * during the lifetime of the application

 *

 * @run main/othervm -Dsun.java2d.font.reftype=weak StrikeDisposalCrashTest

 * @run main/othervm -Dsun.java2d.font.reftype=weak -Dsun.java2d.noddraw=true StrikeDisposalCrashTest

 */

import java.awt.Font;

import java.awt.Frame;

import java.awt.Graphics2D;

import java.awt.GraphicsConfiguration;

import java.awt.GraphicsDevice;

import java.awt.GraphicsEnvironment;

import java.awt.RenderingHints;

import java.awt.Toolkit;

import java.awt.image.VolatileImage;

public class StrikeDisposalCrashTest {

    public static void main(String[] args) {

        System.setProperty("sun.java2d.font.reftype", "weak");

        GraphicsDevice gd[] =

            GraphicsEnvironment.getLocalGraphicsEnvironment().getScreenDevices();

        Frame frames[] = new Frame[gd.length];

        for (int i = 0; i < frames.length; i++) {

            GraphicsConfiguration gc = gd[i].getDefaultConfiguration();

            Frame f = new Frame("Frame on "+gc, gc);

            f.setSize(100, 100);

            f.setLocation(gc.getBounds().x, gc.getBounds().y);

            f.pack();

            frames[i] = f;

        }

        Font f1 = new Font("Dialog", Font.PLAIN, 10);

        Font f2 = new Font("Dialog", Font.ITALIC, 12);

        for (int i = 0; i < frames.length/2; i++) {

            // making sure the glyphs are cached in the accel. cache on

            // one frame, then the other

            renderText(frames[i], f1);

            renderText(frames[frames.length -1 - i], f1);

            // and now the other way around, with different glyphs

            renderText(frames[frames.length -1 - i], f2);

            renderText(frames[i], f2);

        }

        // try to force strike disposal (note that we have to use

        // -Dsun.java2d.font.reftype=weak to facilitate the disposal)

        System.gc();

        System.runFinalization();

        System.gc();

        System.runFinalization();

        for (Frame f : frames) {

            f.dispose();

        }

        System.err.println("Exiting. If the test crashed after this it FAILED");

    }

    private static final String text =

        "The quick brown fox jumps over the lazy dog 1234567890";

    private static void renderText(Frame frame, Font f1) {

        VolatileImage vi = frame.createVolatileImage(256, 32);

        vi.validate(frame.getGraphicsConfiguration());

        Graphics2D g = vi.createGraphics();

        g.setFont(f1);

        g.drawString(text, 0, vi.getHeight()/2);

        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

                           RenderingHints.VALUE_TEXT_ANTIALIAS_ON);

        g.drawString(text, 0, vi.getHeight()/2);

        g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,

                           RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB);

        g.drawString(text, 0, vi.getHeight()/2);

        Toolkit.getDefaultToolkit().sync();

    }

}