From c7969623b44f375e30fa3f15dcd7581609276a0f Mon Sep 17 00:00:00 2001
From: Eduardo Pedroni <ep625@york.ac.uk>
Date: Fri, 4 Apr 2014 17:14:44 +0100
Subject: Parameter validation refactored and fully functional.

---
 src/jcgp/gui/GUI.java | 126 ++++++++++++++++++++++++++++++--------------------
 1 file changed, 77 insertions(+), 49 deletions(-)

(limited to 'src/jcgp/gui/GUI.java')

diff --git a/src/jcgp/gui/GUI.java b/src/jcgp/gui/GUI.java
index 0902b21..f7aa25d 100644
--- a/src/jcgp/gui/GUI.java
+++ b/src/jcgp/gui/GUI.java
@@ -53,12 +53,38 @@ public class GUI extends Application {
 	private GUIConsole console = new GUIConsole();
 	private SettingsPane settings;
 	
-	private Service<Void> cgpService;
-	
 	private boolean evolving = false;
 	
 	private Object printLock = new Object();
 	
+	private Service<Void> cgpService = new Service<Void> () {
+		@Override
+		protected Task<Void> createTask() {
+			Task<Void> t = new Task<Void>() {
+				@Override
+				protected Void call() throws Exception {
+					while (!isCancelled() && !cgp.isFinished()) {
+						synchronized (printLock) {
+							Platform.runLater(consoleFlush);
+							cgp.nextGeneration();
+							printLock.wait();
+						}
+					}
+					if (cgp.isFinished()) {
+						Platform.runLater(new Runnable() {
+							@Override
+							public void run() {
+								runningMode(false);
+							}
+						});
+					}
+					return null;
+				}
+			};
+			return t;
+		}
+	};
+	
 	private Runnable consoleFlush = new Runnable() {
 		@Override
 		public void run() {
@@ -80,27 +106,6 @@ public class GUI extends Application {
 	public void start(Stage primaryStage) throws Exception {
 		resources.setConsole(console);
 		
-		cgpService = new Service<Void> () {
-			@Override
-			protected Task<Void> createTask() {
-				
-				Task<Void> t = new Task<Void>() {
-					@Override
-					protected Void call() throws Exception {
-						while (!isCancelled()) {
-							Platform.runLater(consoleFlush);
-							synchronized (printLock) {
-								cgp.nextGeneration();
-								printLock.wait();
-							}
-						}
-						return null;
-					}
-				};
-				return t;
-			}
-		};
-		
 		/*
 		 * Instantiate the various GUI elements here. 
 		 * 
@@ -167,45 +172,68 @@ public class GUI extends Application {
 		chromosomeTabs.setDisable(value);
 	}
 	
-	public void disable(boolean value) {
-		chromosomeTabs.setDisable(value);
-		settings.disableSettings(value);
-	}
-
-	public void playPause() {
-		if (!evolving) {
-			disable(true);
-			unlockOutputs();
-			evolving = true;
-			cgpService.restart();
-		} else {
-			disable(false);
-			updateNodeGrids();
-			evolving = false;
-			cgpService.cancel();
-			relockOutputs();
+	public void runPause() {
+		if (!cgp.isFinished() && settings.areParametersValid()) {
+			if (!evolving) {
+				runningMode(true);
+				cgpService.restart();
+			} else {
+				cgpService.cancel();
+				runningMode(false);
+			}
 		}
 	}
 	
 	public void step() {
-		if (!evolving) {
-			Thread t = new Thread(new Task<Void>() {
+		if (!evolving && !cgp.isFinished() && settings.areParametersValid()) {
+			if (settings.isResetRequired()) {
+				reset();
+			}
+			unlockOutputs();
+			Task<Void> task = new Task<Void>() {
 				@Override
 				protected Void call() throws Exception {
-					unlockOutputs();
 					cgp.nextGeneration();
-					console.flush();
-					updateNodeGrids();
-					relockOutputs();
+					Platform.runLater(consoleFlush);
 					return null;
 				}
-			});
+			};
+			Thread t = new Thread(task);
 			t.start();
+			try {
+				t.join();
+			} catch (InterruptedException e) {
+				// nothing
+			} finally {
+				updateNodeGrids();
+				relockOutputs();
+			}
 		}
 	}
 	
 	public void reset() {
-		cgp.reset();
-		makeChromosomeTabPane();
+		if (!evolving && settings.areParametersValid()) {
+			settings.applyParameters();
+			cgp.reset();
+			makeChromosomeTabPane();
+			settings.revalidateParameters();
+		}
+	}
+	
+	private void runningMode(boolean value) {
+		chromosomeTabs.setDisable(value);
+		settings.disableSettings(value);
+		if (value) {
+			unlockOutputs();
+			settings.getRunButton().setText("Pause");
+			if (settings.isResetRequired()) {
+				reset();
+			}
+		} else {
+			updateNodeGrids();
+			relockOutputs();
+			settings.getRunButton().setText("Run");
+		}
+		evolving = value;
 	}
 }
-- 
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