View utils:

Progress bar interface
Progress bar base class
Progress bar embedded class (extends base)

src/main/java/forge/view/util/ProgressBar_Base.java

@@ -0,0 +1,575 @@
+package forge.view.util;
+
+import java.util.Date;
+import java.util.Hashtable;
+import javax.swing.JProgressBar;
+import com.esotericsoftware.minlog.Log;
+
+/**
+ * This base class also acts as a "null" progress monitor; it doesn't display
+ * anything when updated.
+ * 
+ * Absolute times are measured in seconds, in congruence with ProgressMonitor.
+ * 
+ * @see forge.view.util.ProgressBar_Interface
+ */
+@SuppressWarnings("serial")
+public class ProgressBar_Base extends JProgressBar implements ProgressBar_Interface  {
+    private int numPhases;
+	private int currentPhase;
+	private long totalUnitsThisPhase;
+	private long unitsCompletedSoFarThisPhase;
+	private float minUIUpdateIntervalSec;
+	private long lastUIUpdateTime;
+	private long phaseOneStartTime;
+	private long currentPhaseStartTime;
+	private float currentPhaseExponent;
+	private long[] phaseDurationHistorySecList;
+	private float[] phaseWeights;
+	private Hashtable<Integer,String> phaseNames;
+
+	public final int SECONDS_PER_MINUTE = 60;
+	public final int SECONDS_PER_HOUR = 60 * SECONDS_PER_MINUTE;
+	public final int SECONDS_PER_DAY = 24 * SECONDS_PER_HOUR;
+	
+
+	/**
+	 * Convenience for 
+	 * ProgressBar_Base(numPhases, totalUnitsFirstPhase, 2.0f, null).
+	 * 
+     * @see #ProgressBar_Base(int,long,float,float[])
+     */
+    public ProgressBar_Base(int numPhases, long totalUnitsFirstPhase) {
+    	this(numPhases, totalUnitsFirstPhase, 2.0f, null);
+    }
+
+    /**
+	 * Convenience for 
+	 * ProgressBar_Base(numPhases, totalUnitsFirstPhase, 
+	 * minUIUpdateIntervalSec, null).
+	 * 
+     * @see #ProgressBar_Base(int,long,float,float[])
+     */
+    public ProgressBar_Base(int numPhases, long totalUnitsFirstPhase, 
+            float minUIUpdateIntervalSec) 
+    {
+    	this(numPhases, totalUnitsFirstPhase, minUIUpdateIntervalSec, null);
+    }
+
+    /**
+     * Initializes fields and starts the timers.
+     * 
+     * @param numPhases  the total number of phases we will monitor
+     * 
+     * @param totalUnitsFirstPhase  how many units to expect in phase 1
+     * 
+     * @param minUIUpdateIntervalSec  the approximate interval at which we
+     * update the user interface, in seconds
+     * 
+     * @param phaseWeights  may be null; if not null, this indicates the 
+     * relative weight of each phase in terms of time to complete all phases.  
+     * Index 0 of this array indicates phase 1's weight, index 1 indicates
+     * the weight of phase 2, and so on.  If null, all phases are considered to
+     * take an equal amount of time to complete, which is equivalent to setting
+     * all phase weights to 1.0f.  For example, if there are two phases, and
+     * the phase weights are set to {2.0f, 1.0f}, then the methods that compute
+     * the final ETA (Estimated Time of Arrival or completion) will assume that
+     * phase 2 takes half as long as phase 1. In other words, the operation
+     * will spend 67% of its time in phase 1, and 33% of its time in phase 2.
+     */
+    public ProgressBar_Base(int numPhases, long totalUnitsFirstPhase, 
+	                 float minUIUpdateIntervalSec, float[] phaseWeights) 
+    {
+        super();
+        
+    	this.numPhases = numPhases;
+    	this.currentPhase = 1;
+    	this.unitsCompletedSoFarThisPhase = 0L;
+    	this.minUIUpdateIntervalSec = minUIUpdateIntervalSec;
+    	this.lastUIUpdateTime = 0L;
+    	this.phaseOneStartTime = new Date().getTime()/1000;
+    	this.currentPhaseStartTime = this.phaseOneStartTime;
+    	this.currentPhaseExponent = 1;
+    	this.phaseDurationHistorySecList = new long[numPhases];
+
+    	if (phaseWeights == null) {
+    		this.phaseWeights = new float[numPhases];
+    		for (int ix = 0; ix < numPhases; ix++) {
+    			this.phaseWeights[ix] = 1.0f;
+    		}
+    	}
+    	else {
+    		this.phaseWeights = phaseWeights;
+    	}
+    	
+    	if (phaseNames == null) {
+    	    this.phaseNames = new Hashtable<Integer, String>();
+    	    for(int i=1;i<=numPhases;i++) { 
+    	        this.phaseNames.put(i, "Phase "+i); 
+    	    }
+    	}
+    	
+    	setTotalUnitsThisPhase(totalUnitsFirstPhase);
+    }
+    
+    /**
+     * Does nothing.
+     */
+    public void dispose() {
+    	;
+    }
+    
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getNumPhases()
+	 */
+    public int getNumPhases() {
+        return this.numPhases;
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getMinUpdateIntervalSec()
+	 */
+    public float getMinUpdateIntervalSec() {
+        return this.minUIUpdateIntervalSec;
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getCurrentPhase()
+	 */
+    public int getCurrentPhase() {
+        return this.currentPhase;
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getUnitsCompletedSoFarThisPhase()
+	 */
+    public long getUnitsCompletedSoFarThisPhase() {
+        return this.unitsCompletedSoFarThisPhase;
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getTotalUnitsThisPhase()
+	 */
+    public long getTotalUnitsThisPhase() {
+        return this.totalUnitsThisPhase;
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getLastUIUpdateTime()
+	 */
+    public long getLastUIUpdateTime() {
+        return this.lastUIUpdateTime;
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getPhaseOneStartTime()
+	 */
+    public long getPhaseOneStartTime() {
+        return this.phaseOneStartTime;
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getCurrentPhaseStartTime()
+	 */
+    public long getCurrentPhaseStartTime() {
+        return this.currentPhaseStartTime;
+    }
+
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#setMinUpdateIntervalSec(float)
+	 */
+    public void setMinUpdateIntervalSec(float value) {
+        this.minUIUpdateIntervalSec = value;
+    }
+
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#setTotalUnitsThisPhase(long)
+	 */
+    public void setTotalUnitsThisPhase(long value) {
+        // DS - why is this called twice?
+        if (value > Integer.MAX_VALUE) {
+            throw new IllegalArgumentException("numUnits must be <= " + Integer.MAX_VALUE);
+        }
+        else {
+            this.totalUnitsThisPhase = value;
+            
+            // (Temporary solution until I know a better way) 
+            this.setProgressRange(0,(int)value);
+        }
+    }
+    
+    /**
+     * <p>setProgressRange.</p>
+     *
+     * @param min an int.
+     * @param max an int.
+     */
+    public void setProgressRange(int min, int max) {
+        this.setMinimum(min);
+        this.setMaximum(max);
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getPercentCompleteOfThisPhaseAsString()
+	 */
+    public String getPercentCompleteOfThisPhaseAsString() {
+        
+        Float percent = getPercentCompleteOfThisPhaseAsFloat();
+        
+        if (percent != null) {
+            return Integer.toString((int) (float) percent);
+        }
+        else {
+            return "??";
+        }
+    }
+
+        
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getTotalPercentCompleteAsString()
+	 */
+    public String getTotalPercentCompleteAsString() {
+        Float percent = getTotalPercentCompleteAsFloat();
+
+        if (percent == null) {
+            return "??";
+        }
+        else {
+            return Integer.toString((int) (float) percent);
+        }
+    }
+    
+    
+    /**
+	 * Convenience for getRelativeETAAsString(false), meaning to compute the
+	 * value for the end of the last phase.
+	 * 
+	 * @see #getRelativeETAAsString(boolean)
+	 */
+    public String getRelativeETAAsString() {
+    	return getRelativeETAAsString(false);
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getRelativeETAAsString(boolean)
+	 */
+    public String getRelativeETAAsString(boolean thisPhaseOnly) {
+        
+        Integer etaSec = getRelativeETASec(thisPhaseOnly);
+        
+        if (etaSec == null) {
+            return "unknown";
+        }
+        
+        String result = "";
+        if (etaSec > SECONDS_PER_DAY) {
+            result += Integer.toString(etaSec / SECONDS_PER_DAY);
+            result += " da, ";
+            etaSec %= SECONDS_PER_DAY;  // Shave off the portion recorded.
+        }
+        if (result.length() > 0 || etaSec > SECONDS_PER_HOUR) {
+            result += Integer.toString(etaSec / SECONDS_PER_HOUR);
+            result +=  " hr, ";
+            etaSec %= SECONDS_PER_HOUR;  // Shave off the portion recorded.
+        }   
+        if (result.length() > 0 || etaSec > SECONDS_PER_MINUTE) {
+            result += Integer.toString(etaSec / SECONDS_PER_MINUTE);
+            result +=  " min, ";
+            etaSec %= SECONDS_PER_MINUTE;  // Shave off the portion recorded.
+        }
+        
+        result += Integer.toString(etaSec);
+        result += " sec";
+        
+        return result;
+    }    
+
+    /**
+	 * Convenience for getAbsoluteETAAsLocalTimeString(false), meaning to 
+	 * compute the value for the end of the last phase.
+	 * 
+	 * @see #getAbsoluteETAAsLocalTimeString(boolean)
+	 */
+    public String getAbsoluteETAAsLocalTimeString() {
+    	return getAbsoluteETAAsLocalTimeString(false);
+    }
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getAbsoluteETAAsLocalTimeString(boolean)
+	 */
+    public String getAbsoluteETAAsLocalTimeString(boolean thisPhaseOnly) {
+        Long etaTime = getAbsoluteETATime(thisPhaseOnly);
+        
+        if (etaTime == null) {
+            return "unknown";
+        }
+        
+        return (new Date(etaTime*1000).toString());
+    }
+
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#incrementUnitsCompletedThisPhase(long)
+	 */
+    public void incrementUnitsCompletedThisPhase(long numUnits) {
+        this.unitsCompletedSoFarThisPhase += numUnits;
+    }
+    
+    public void increment() {
+        setValue(getValue() + 1);
+        if (getValue() % 10 == 0) { repaint(); }
+    }
+        
+    /**
+     * Subclasses must call this immediately after updating the UI, to 
+     * preserve the integrity of the shouldUpdateUI method.
+     */
+    protected void justUpdatedUI() {
+    	this.lastUIUpdateTime = new Date().getTime()/1000;
+    }
+        
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#shouldUpdateUI()
+	 */
+    public boolean shouldUpdateUI() {
+
+        doctorStartTimes();
+        long nowTime = (new Date().getTime()/1000);
+        
+        if (nowTime - this.lastUIUpdateTime >= this.minUIUpdateIntervalSec || 
+        	(this.getUnitsCompletedSoFarThisPhase() == 
+             this.getTotalUnitsThisPhase())) 
+        {
+            return true;
+        }
+        else {
+            return false;
+        }
+    }
+
+    
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#markCurrentPhaseAsComplete(long)
+	 */
+    public void markCurrentPhaseAsComplete(long totalUnitsNextPhase) {
+
+        if ((this.currentPhase > this.numPhases)) {
+            String message = "The phase just completed (";
+            message += this.currentPhase;
+            message += ") is greater than the total number ";
+            message += "of anticipated phases (";
+    		message += this.numPhases;
+    		message += "); the latter is probably incorrect.";
+              
+            Log.warn(message);
+        }
+        
+        this.currentPhase += 1;
+        this.unitsCompletedSoFarThisPhase = 0;
+        setTotalUnitsThisPhase(totalUnitsNextPhase);
+        this.currentPhaseExponent = 1;
+
+        long nowTime = (new Date().getTime()/1000);
+        long durationOfThisPhaseSec = nowTime - this.currentPhaseStartTime;
+        if (durationOfThisPhaseSec < 0) {
+            durationOfThisPhaseSec = 0;
+        }
+        
+        if (0 <= currentPhase-2 && currentPhase-2 < phaseDurationHistorySecList.length) {
+        	this.phaseDurationHistorySecList[currentPhase-2] = durationOfThisPhaseSec;
+        }
+        this.currentPhaseStartTime = nowTime;
+        
+        if (this.currentPhase >= this.numPhases) {
+        	String message = "Actual individual phase durations: [";
+        	for (int ix = 0 ; ix < phaseDurationHistorySecList.length ; ix++) {
+        		message += phaseDurationHistorySecList[ix] + ", ";
+        	}
+
+        	Log.info(message + ']');
+        }
+    }
+
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#sendMessage(java.lang.String)
+	 */
+    public void sendMessage(String message) {
+        ;
+    }
+
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#setCurrentPhaseAsExponential(float)
+	 */
+    public void setCurrentPhaseAsExponential(float value) {
+        this.currentPhaseExponent = value;
+    }
+
+
+    /**
+	 * @see forge.view.util.ProgressBar_Interface#getCurrentPhaseExponent()
+	 */
+    public float getCurrentPhaseExponent() {
+        return this.currentPhaseExponent;
+    }
+    
+    /**
+     * Sets the name of a phase in the process (e.g. "Phase 1" becomes "Loading XML")
+     */
+    public void setPhaseName(int i, String name) {
+           
+    }
+    
+    public String getPhaseName(int i) {
+        return phaseNames.get(i);
+    }
+    
+    /**
+     * @return number in range [0.0, 100.0] or null.
+     */
+    protected Float getPercentCompleteOfThisPhaseAsFloat() {
+        if (this.totalUnitsThisPhase < 1 || 
+            this.unitsCompletedSoFarThisPhase > this.totalUnitsThisPhase) {
+            return null;
+        }
+        else {
+            float ratio = ((float) (this.unitsCompletedSoFarThisPhase)) / 
+                     ((float) this.totalUnitsThisPhase);
+            
+            ratio = (float) Math.pow(ratio, this.getCurrentPhaseExponent());
+                
+            return (ratio * 100.0f);
+        }
+    }
+
+
+    /**
+     * Returns number in range [0.0, 100.0] or null.
+     */
+    protected Float getTotalPercentCompleteAsFloat() {
+        long totalPoints = 0;
+        for (float weight : this.phaseWeights) {
+            totalPoints += weight * 100;
+        }
+        
+        Float percentThisPhase = getPercentCompleteOfThisPhaseAsFloat();
+        
+        if (percentThisPhase == null) {
+            // If we can't know the percentage for this phase, use a
+            // conservative estimate.
+            percentThisPhase = 0.0f;
+        }
+        
+        long pointsSoFar = 0;
+        for (int ix = 0; ix < this.currentPhase-1; ix++) {
+            // We get full points for (all the phases completed prior to this one.
+            pointsSoFar += phaseWeights[ix] * 100;
+        }
+            
+        pointsSoFar += percentThisPhase * this.phaseWeights[this.currentPhase-1];
+        
+        if (totalPoints <= 0.0 || pointsSoFar > totalPoints) {
+            return null;
+        }
+        else {
+            return (100.0f * pointsSoFar) / totalPoints;
+        }
+    }
+
+
+    /**
+     * Convenience for getRelativeETASec(false), meaning to compute the value
+     * for the end of the last phase. 
+     * 
+     * @see #getRelativeETASec(boolean)
+     */
+    protected Integer getRelativeETASec() {
+    	return getRelativeETASec(false);
+    }
+
+    /**
+     * @return estimated seconds until completion for either thisPhaseOnly
+     * or for the entire operation.  May return null if unknown.
+     */
+    protected Integer getRelativeETASec(boolean thisPhaseOnly) {
+
+        Long absoluteETATime = getAbsoluteETATime(thisPhaseOnly);
+        if (absoluteETATime == null) {
+            return null;
+        }
+        return (int) (absoluteETATime - (new Date().getTime()/1000));
+    }
+    
+
+    /**
+     * Convenience for getAbsoluteETATime(false), meaning to compute the value
+     * for the end of all phases. 
+     * 
+     * @see #getAbsoluteETATime(boolean)
+     */
+    protected Long getAbsoluteETATime() {
+    	return getAbsoluteETATime(false);
+    }
+    
+    /**
+     * @return the estimated time (in absolute seconds) at which thisPhaseOnly
+     * or the entire operation will be completed.  May return null if (unknown.
+     */
+    protected Long getAbsoluteETATime(boolean thisPhaseOnly) {
+        doctorStartTimes();
+        
+        // If we're in the last phase, the overall ETA is the same as the ETA
+        // for (this particular phase.
+        if (this.getCurrentPhase() >= this.getNumPhases()) {
+            thisPhaseOnly = true;
+        }
+        
+        Float percentDone = null;
+        long startTime = 0L;
+        
+        if (thisPhaseOnly) {
+            percentDone = getPercentCompleteOfThisPhaseAsFloat();
+            startTime = this.currentPhaseStartTime;
+        }
+        else {
+            percentDone = getTotalPercentCompleteAsFloat();
+            startTime = this.phaseOneStartTime;
+        }
+
+        if (percentDone == null || percentDone <= 0.001) {
+            return null;
+        }
+        
+        // Elapsed time is to percent done as total time is to total done =>
+        // elapsed/percentDone == totalTime/100.0 =>
+        long totalTime = (long) (100.0f * ((new Date().getTime()/1000) - startTime) / percentDone);
+        
+        return totalTime + startTime;
+    }
+
+
+    /**
+     * Repair the start times in case the system clock has been moved 
+     * backwards.
+     */
+    protected void doctorStartTimes() {
+        
+        long nowTime = (new Date().getTime()/1000);
+        
+        if (this.lastUIUpdateTime > nowTime) {
+            this.lastUIUpdateTime = 0;
+        }
+        
+        if (this.phaseOneStartTime > nowTime) {
+            this.phaseOneStartTime = nowTime;
+        }
+        
+        if (this.currentPhaseStartTime > nowTime) {
+            this.currentPhaseStartTime = nowTime;
+        }
+    }
+
+}

src/main/java/forge/view/util/ProgressBar_Embedded.java

@@ -0,0 +1,97 @@
+package forge.view.util;
+
+import javax.swing.SwingUtilities;
+
+import forge.view.util.ProgressBar_Base;
+
+/**
+ * GUI Progress Monitor that displays the ETA (Estimated Time of Arrival or
+ * completion) on some platforms and supports one or multiple phases of
+ * progress.
+ *
+ * In this implementation, the progress bar must be embedded in a parent component.
+ */
+@SuppressWarnings("serial")
+public class ProgressBar_Embedded extends ProgressBar_Base {
+
+    public ProgressBar_Embedded(int numPhases, long totalUnitsFirstPhase) {
+        super(numPhases, totalUnitsFirstPhase);
+        
+        setIndeterminate(false);
+        setString("");
+        setStringPainted(true);
+        setValue(0);
+    }
+    
+   // public void increment() {
+   //     setValue(getValue() + 1);
+   //     System.out.println("x");
+   //     //if (getValue() % 10 == 0) { repaint(); }
+   // }
+
+    @Override
+    /**
+     * @see forge.view.util.ProgressBar_Base#incrementUnitsCompletedThisPhase(long)
+     */
+    public final void incrementUnitsCompletedThisPhase(final long numUnits) {
+        super.incrementUnitsCompletedThisPhase(numUnits);
+        SwingUtilities.invokeLater(new Runnable() { // NOPMD by Braids on 8/18/11 11:18 PM
+            public void run() {
+                for (int i = 0; i < numUnits; i++) {
+                   increment();
+                }
+            }
+        });
+
+        if (shouldUpdateUI()) {
+
+            if ((getNumPhases() > 1)) {
+                displayUpdate(
+                 "Phase " + getCurrentPhase() + ". "
+                 //+ getUnitsCompletedSoFarThisPhase() + " units processed. "
+                 //+ "Overall: " + getTotalPercentCompleteAsString() + "% complete, "
+                 + "Overall ETA in " + getRelativeETAAsString() + "."
+                 );
+            }
+            else {
+                displayUpdate(
+                 //"Overall: " +
+                 getUnitsCompletedSoFarThisPhase() + " units processed; "
+                 //+ "(" + getTotalPercentCompleteAsString() + "%); "
+                 + "ETA in " + getRelativeETAAsString() + "."
+                 );
+            }
+        }
+
+        if (getCurrentPhase() == getNumPhases()
+            && getUnitsCompletedSoFarThisPhase() >= getTotalUnitsThisPhase())
+        {
+            displayUpdate("Done!");
+        }
+     }
+
+    /**
+     * Shows the message inside the progress dialog; does not always work on
+     * all platforms.
+     *
+     * @param message  the message to display
+     */
+    public final void displayUpdate(final String message) {
+
+        final Runnable proc = new Runnable() { // NOPMD by Braids on 8/18/11 11:18 PM
+            public void run() {
+                setString(message);
+                justUpdatedUI();
+            }
+        };
+
+        if (SwingUtilities.isEventDispatchThread()) {
+            proc.run();
+        }
+        else {
+            SwingUtilities.invokeLater(proc);
+        }
+    }
+
+
+}

src/main/java/forge/view/util/ProgressBar_Interface.java

@@ -0,0 +1,152 @@
+package forge.view.util;
+
+/**
+ * Interface for a progress monitor that can have multiple phases
+ * and periodically update its UI.
+ * 
+ * All times must be in seconds; absolute times are measured in seconds since
+ * 01 Jan 1970 00:00:00 UTC (GMT) a la (new Date().getTime()/1000).
+ */
+public interface ProgressBar_Interface {
+
+	/**
+	 * Destroy this progress monitor, making it no longer usable and/or 
+	 * visible.
+	 */
+	public void dispose();
+	
+	/** 
+	 * @return the total number of phases monitored by this object.
+	 */
+	public abstract int getNumPhases();
+
+	/**
+	 * @return the approximate minimum interval in seconds at which the UI
+	 * should be updated.
+	 */
+	public abstract float getMinUpdateIntervalSec();
+
+	/**
+	 * @return the current phase number; this is never less than 1 (one).
+	 */
+	public abstract int getCurrentPhase();
+
+	/**
+	 * @return the number of units (an intentionally vague amount) completed
+	 * so far in the current phase.
+	 */
+	public abstract long getUnitsCompletedSoFarThisPhase();
+
+	/**
+	 * @return the total units we expect to process in this phase
+	 */
+	public abstract long getTotalUnitsThisPhase();
+
+	/**
+	 * @return the time in absolute seconds since the UI was last updated
+	 */
+	public abstract long getLastUIUpdateTime();
+
+	/**
+	 * @return the time in absolute seconds at which the first phase started
+	 */
+	public abstract long getPhaseOneStartTime();
+
+	/**
+	 * @return the time in absolute seconds at which the current phase started
+	 */
+	public abstract long getCurrentPhaseStartTime();
+
+	/**
+	 * @param value
+	 *            the approximate time in relative seconds at which the UI
+	 *            should be updated periodically
+	 */
+	public abstract void setMinUpdateIntervalSec(float value);
+
+	/**
+	 * @param value the total number of units expected to processed in this 
+	 * phase
+	 */
+	public abstract void setTotalUnitsThisPhase(long value);
+
+	/**
+	 * Resulting string does not contain a percent sign.
+	 * 
+	 * @return the percentage completion of this phase as a String with no
+	 * percent sign.
+	 */
+	public abstract String getPercentCompleteOfThisPhaseAsString();
+
+	/**
+	 * Resulting string does not contain a percent sign.
+	 * 
+	 * @return the percentage completion at this point, taking into account all
+	 * phases and phase-weights, as a String with no percent sign.
+	 */
+	public abstract String getTotalPercentCompleteAsString();
+
+	/**
+	 * May return "unknown"
+	 */
+	public abstract String getRelativeETAAsString(boolean thisPhaseOnly);
+
+	/**
+	 * May return "unknown"
+	 */
+	public abstract String getAbsoluteETAAsLocalTimeString(boolean thisPhaseOnly);
+
+	/**
+	 * Note this will NOT advance the phase.  
+	 * To do that, use markCurrentPhaseAsComplete().
+	 */
+	public abstract void incrementUnitsCompletedThisPhase(long numUnits);
+
+	/**
+	 * Returns a boolean, whether or not to display the updated information.
+	 * This throttles the update so it doesn't refresh so fast that it is
+	 * unreadable.  Implementers should call this method from their own
+	 * incrementUnitsCompletedThisPhase method.
+	 * 
+	 * If we have just reached 100% for (the current phase, we return true, 
+	 * even if it would otherwise be too soon to update the UI.
+	 */
+	public abstract boolean shouldUpdateUI();
+
+	/**
+	 * This is the only way to advance the phase number.
+	 * It automatically "starts the clock" for the next phase.
+	 * 
+	 * @param totalUnitsNextPhase  if unknown, use zero (0), and be sure to call
+	 * setTotalUnitsThisPhase() soon after.
+	 */
+	public abstract void markCurrentPhaseAsComplete(long totalUnitsNextPhase);
+
+	/**
+	 * Attempt to display a message to the user; not all implementations 
+	 * support this.  
+	 * 
+	 * If they do not, they may silently ignore this call.
+	 * 
+	 * @param message  the message to display
+	 */
+	public abstract void sendMessage(String message);
+
+	
+	/**
+	 * Mark the current phase as having an exponential rate; such phases
+	 * reach their totalUnits slower and slower as they process more units.
+	 * 
+	 * By default, a phase is considered to be linear, meaning this value is
+	 * 1.0f.
+	 * 
+	 * @param value  usually less than 1.0f; often determined empirically.
+	 */
+	public abstract void setCurrentPhaseAsExponential(float value);
+
+	/**
+	 * @return the exponent for this phase
+	 */
+	public abstract float getCurrentPhaseExponent();
+
+}

src/main/java/forge/view/util/package-info.java

@@ -0,0 +1,2 @@
+/** Forge Card Game */
+package forge.view.util;