com.intellij.openapi.ui.DialogEarthquakeShaker.java Source code

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Here is the source code for com.intellij.openapi.ui.DialogEarthquakeShaker.java

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/*
 * Copyright 2000-2016 JetBrains s.r.o.
 *
 * 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.
 */
package com.intellij.openapi.ui;

import com.intellij.openapi.util.Disposer;
import com.intellij.util.ui.Animator;

import java.awt.*;

/**
 * @author Konstantin Bulenkov
 */
public class DialogEarthquakeShaker {
    private final Window myWindow;
    private Point myNaturalLocation;
    private long myStartTime;

    private DialogEarthquakeShaker(Window window) {
        myWindow = window;
    }

    public void startShake() {
        myNaturalLocation = myWindow.getLocation();
        myStartTime = System.currentTimeMillis();
        new Animator("EarthQuake", 10, 70, true) {
            @Override
            public void paintNow(int frame, int totalFrames, int cycle) {
                final long elapsed = System.currentTimeMillis() - myStartTime;
                final double waveOffset = (elapsed % 70) / 70d;
                final double angle = waveOffset * 2d * Math.PI;
                final int shakenX = (int) ((Math.sin(angle) * 10) + myNaturalLocation.x);
                myWindow.setLocation(shakenX, myNaturalLocation.y);
                myWindow.repaint();
                if (elapsed > 150) {
                    suspend();
                    myWindow.setLocation(myNaturalLocation);
                    myWindow.repaint();
                    Disposer.dispose(this);
                }
            }
        }.resume();
    }

    public static void shake(Window window) {
        new DialogEarthquakeShaker(window).startShake();
    }
}