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      1 /*
      2  * Copyright (c) 2009-2010 jMonkeyEngine
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  * * Redistributions of source code must retain the above copyright
     10  *   notice, this list of conditions and the following disclaimer.
     11  *
     12  * * Redistributions in binary form must reproduce the above copyright
     13  *   notice, this list of conditions and the following disclaimer in the
     14  *   documentation and/or other materials provided with the distribution.
     15  *
     16  * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
     17  *   may be used to endorse or promote products derived from this software
     18  *   without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 package com.jme3.terrain;
     33 
     34 /**
     35  * Monitor the progress of an expensive terrain operation.
     36  *
     37  * Monitors are passed into the expensive operations, and those operations
     38  * call the incrementProgress method whenever they determine that progress
     39  * has changed. It is up to the monitor to determine if the increment is
     40  * percentage or a unit of another measure, but anything calling it should
     41  * use the setMonitorMax() method and make sure incrementProgress() match up
     42  * in terms of units.
     43  *
     44  * @author Brent Owens
     45  */
     46 public interface ProgressMonitor {
     47 
     48     /**
     49      * Increment the progress by a unit.
     50      */
     51     public void incrementProgress(float increment);
     52 
     53     /**
     54      * The max value that when reached, the progress is at 100%.
     55      */
     56     public void setMonitorMax(float max);
     57 
     58     /**
     59      * The max value of the progress. When incrementProgress()
     60      * reaches this value, progress is complete
     61      */
     62     public float getMonitorMax();
     63 
     64     /**
     65      * The progress has completed
     66      */
     67     public void progressComplete();
     68 }
     69