Fix bug where reference projects where added repeatedly, seriously lagging the user interface

Author: emd4600

src/sporemodder/EditorManager.java

@@ -21,10 +21,7 @@
 
 import java.io.File;
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.Properties;
+import java.util.*;
 
 import javafx.collections.ListChangeListener;
 import javafx.scene.Node;
@@ -519,7 +516,7 @@ private void updateFileLabel(String relativePath) {
 	}
 
 
-	public void loadFixedTabs(List<String> tabPaths) {
+	public void loadFixedTabs(Collection<String> tabPaths) {
 		disableTabEvents = true;
 
 		for (String path : tabPaths) {
@@ -587,7 +584,7 @@ public void setUI(EditorPaneUI ui) {
 			}
 
 			if (!disableTabEvents) {
-				List<String> paths = ProjectManager.get().getActive().getFixedTabPaths();
+				Set<String> paths = ProjectManager.get().getActive().getFixedTabPaths();
 				paths.clear();
 				for (Tab tab : l.getList()) {
 

src/sporemodder/ProjectManager.java

@@ -971,7 +971,7 @@ public void loadItemFolder(ProjectTreeItem parentItem) {
 		loadItemFolder(parentItem.getValue().getProject(), parentItem.getValue().getProject().getReferences(), parentItem);
 	}
 
-	public void loadItemFolder(Project project, List<Project> sources, ProjectTreeItem parentItem) {
+	public void loadItemFolder(Project project, Collection<Project> sources, ProjectTreeItem parentItem) {
 
 		/** The nodes that have already been loaded in this level. */
 		Map<String, ProjectTreeItem> loadedItems = createChildrenMap(null);
@@ -980,7 +980,7 @@ public void loadItemFolder(Project project, List<Project> sources, ProjectTreeIt
 		String relativePath = parentItem.getValue().getRelativePath();
 
 		// Iterate the sources in reverse orders, as the last ones (the least important) have to be loaded first
-		ListIterator<Project> iterable = sources.listIterator(sources.size());
+		ListIterator<Project> iterable = new LinkedList<>(sources).listIterator(sources.size());
 		while (iterable.hasPrevious())
 		{
 			Project source = iterable.previous();

src/sporemodder/util/Project.java

@@ -21,11 +21,7 @@
 
 import java.io.*;
 import java.nio.file.Files;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
+import java.util.*;
 import java.util.stream.Collectors;
 
 import sporemodder.MessageManager;
@@ -101,13 +97,13 @@ public enum PackageSignature {
 	/** External projects have a file in the Projects folder that links to the real path. */
 	private File externalLink;
 
-	private final List<Project> references = new ArrayList<>();
+	private final Set<Project> references = new LinkedHashSet<>();
 
 	/** The object that holds the path to the folder where the project DBPF is packed. */
 	private final GamePathConfiguration packPath;
 
 	/** A list of relative paths of all those files that are fixed tabs. */
-	private final List<String> fixedTabPaths = new ArrayList<>();
+	private final Set<String> fixedTabPaths = new LinkedHashSet<>();
 
 	/** The embedded 'editorPackages~' file that represents the package signature. */
 	private PackageSignature packageSignature = PackageSignature.NONE;
@@ -142,7 +138,7 @@ public Project(String name, File folder, File externalLink) {
 		onNameChanged(null);
 	}
 
-	public List<Project> getReferences() {
+	public Set<Project> getReferences() {
 		return references;
 	}
 
@@ -177,15 +173,15 @@ public void loadSettings() {
 				ProjectManager projectManager = ProjectManager.get();
 
 				String[] sourceNames = stringListSplit(PROPERTY_sources);
+				references.clear();
 				for (String str : sourceNames) {
 					Project p = projectManager.getProject(str);
 					if (p != null) references.add(p);
 				}
 
 				String[] tabPaths = stringListSplit(PROPERTY_fixedTabPaths);
-				for (String str : tabPaths) {
-					fixedTabPaths.add(str);
-				}
+				fixedTabPaths.clear();
+				fixedTabPaths.addAll(Arrays.asList(tabPaths));
 
 				packageName = settings.getProperty(PROPERTY_packageName);
 				if (packageName == null) packageName = getDefaultPackageName(name);
@@ -229,24 +225,12 @@ public void saveSettings() {
 		//if (!sources.isEmpty()) {
 		// Do this even if it's empty, as we need to update it if sources were removed
 		{
-			StringBuilder sb = new StringBuilder();
-
-			for (int i = 0; i < references.size(); i++) {
-				sb.append("\"" + references.get(i).name + "\"");
-				if (i != references.size()-1) sb.append("|");
-			}
-
-			settings.setProperty(PROPERTY_sources, sb.toString());
+			String referencesStr = references.stream().map(r -> '"' + r.name + '"').collect(Collectors.joining("|"));
+			settings.setProperty(PROPERTY_sources, referencesStr);
 		}
 		if (!fixedTabPaths.isEmpty()) {
-			StringBuilder sb = new StringBuilder();
-
-			for (int i = 0; i < fixedTabPaths.size(); i++) {
-				sb.append("\"" + fixedTabPaths.get(i) + "\"");
-				if (i != fixedTabPaths.size()-1) sb.append("|");
-			}
-
-			settings.setProperty(PROPERTY_fixedTabPaths, sb.toString());
+			String str = fixedTabPaths.stream().map(r -> '"' + r + '"').collect(Collectors.joining("|"));
+			settings.setProperty(PROPERTY_fixedTabPaths, str);
 		}
 
 		settings.put(PROPERTY_packageName, packageName);
@@ -304,7 +288,7 @@ public void setReadOnly(boolean isReadOnly) {
 	 * Returns a list of relative paths of all those files that are fixed tabs. 
 	 * @return
 	 */
-	public List<String> getFixedTabPaths() {
+	public Set<String> getFixedTabPaths() {
 		return fixedTabPaths;
 	}
 

src/sporemodder/view/dialogs/ProjectSettingsUI.java

@@ -19,8 +19,10 @@
 package sporemodder.view.dialogs;
 
 import java.io.File;
+import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Optional;
+import java.util.Set;
 
 import javafx.fxml.FXML;
 import javafx.scene.Node;
@@ -189,22 +191,12 @@ private void saveSettings(boolean saveSettingsOnExit) {
 		if (saveSettingsOnExit && nameChanged) {
 			ProjectManager.get().rename(project, tfName.getText());
 		}
-		
-		List<Project> oldSources = project.getReferences();
-		List<Project> newSources = sourcesList.getItems();
-		boolean sourcesChanged = oldSources.size() != newSources.size();
-		
-		if (!sourcesChanged) {
-			for (int i = 0; i < oldSources.size(); i++) {
-				if (oldSources.get(i) != newSources.get(i)) {
-					sourcesChanged = true;
-					break;
-				}
-			}
-		}
-		
+
 		project.setPackageName(packageNameField.getText());
-		
+
+		Set<Project> oldSources = project.getReferences();
+		Set<Project> newSources = new LinkedHashSet<>(sourcesList.getItems());
+		boolean sourcesChanged = !oldSources.equals(newSources);
 		if (sourcesChanged) {
 			project.getReferences().clear();
 			project.getReferences().addAll(sourcesList.getItems());