Added FileTree Navigation with UP and DOWN keys!

src/omega/IDEUpdater.java

@@ -1,4 +1,4 @@
-/**
+/*
  * IDEUpdater
  * Copyright (C) 2021 Omega UI
 

src/omega/Screen.java

@@ -746,7 +746,11 @@ public void dispose(){
 		uiManager.save();
 		dataManager.saveData();
 		if(projectFile.getProjectManager().isLanguageTagNonJava()){
-			projectFile.getArgumentManager().save();
+			if(projectFile.getArgumentManager() != null)
+				projectFile.getArgumentManager().save();
+			else{
+				System.out.println("This project doesn't contains any arguments to be saved! ... skipping ArgumentManager.save()");
+			}
 		}
 		SnippetBase.save();
 		getPluginReactionManager().triggerReaction(PluginReactionEvent.genNewInstance(PluginReactionEvent.EVENT_TYPE_IDE_CLOSING, this, 0));

src/omega/io/IconManager.java

@@ -1,6 +1,6 @@
-/**
+/*
  * IconManager
- * Copyright (C) 2021 Omega UI
+ * Copyright (C) 2022 Omega UI
 
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -161,6 +161,10 @@ public class IconManager {
 	public static BufferedImage fluentcopyImage = getFluentIcon("copy-to-clipboard-48.png");
 	public static BufferedImage fluenteditFileImage = getFluentIcon("edit-file-48.png");
 	public static BufferedImage fluentrenameImage = getFluentIcon("rename-48.png");
+
+	public static BufferedImage fluentrightArrowImage = getFluentIcon("chevron-right-48.png");
+	public static BufferedImage fluentdownArrowImage = getFluentIcon("chevron-down-48.png");
+	public static BufferedImage fluentupArrowImage = getFluentIcon("chevron-up-48.png");
 
 	//Fluent GIFs
 	public static Image fluentneutralemojiGif = getFluentGif("neutral.gif");

src/omega/ui/component/FileTreeBranch.java

@@ -1,6 +1,6 @@
-/**
+/*
   * FileTreeBranch
-  * Copyright (C) 2021 Omega UI
+  * Copyright (C) 2022 Omega UI
 
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
@@ -86,6 +86,8 @@ public class FileTreeBranch extends JComponent {
 	private volatile boolean expanded = false;
 	private volatile boolean modeLocked = false;
 	private volatile boolean rootMode = false;
+
+	private volatile BufferedImage arrowImage;
 
 	public FileTreeBranch(FileTreePanel fileTreePanel, File file){
 		this.file = file;
@@ -172,6 +174,12 @@ public void initKeyStrokes(){
 		listener.putKeyStroke((e)->{
 			Screen.openInTerminal(file);
 		}, VK_F3).setStopKeys(VK_CONTROL, VK_ALT, VK_SHIFT).useAutoReset();
+		listener.putKeyStroke((e)->{
+			fileTreePanel.transferFocusToNextBranch(FileTreeBranch.this);
+		}, VK_DOWN);
+		listener.putKeyStroke((e)->{
+			fileTreePanel.transferFocusToPreviousBranch(FileTreeBranch.this);
+		}, VK_UP);
 
 		addKeyListener(listener);
 	}
@@ -188,8 +196,8 @@ public void paintComponent(Graphics graphics){
 		g.setColor(c2);
 		g.setFont(PX14);
 		g.fillRect(0, 0, getWidth(), getHeight());
-		g.drawImage(image, (enter || rootMode) ? 3 : 0, getHeight()/2 - 20/2, null);
-		g.setColor(fileColor);
+		g.drawImage(image, (enter || rootMode || isFocusOwner()) ? 3 : 0, getHeight()/2 - 20/2, null);
+		g.setColor((!rootMode && expanded) ? TOOLMENU_COLOR3 : fileColor);
 		g.drawString(displayName, 30, getHeight()/2 - g.getFontMetrics().getHeight()/2 + g.getFontMetrics().getAscent() - g.getFontMetrics().getDescent() + 1);
 		if(isFocusOwner()){
 			g.fillRect(30, getHeight() - 3, g.getFontMetrics().stringWidth(displayName), 2);

src/omega/ui/panel/AbstractFileTreePanel.java

@@ -1,6 +1,6 @@
-/**
+/*
   * AbstractFileTreePanel
-  * Copyright (C) 2021 Omega UI
+  * Copyright (C) 2022 Omega UI
 
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by

src/omega/ui/panel/FileTreePanel.java

@@ -1,6 +1,6 @@
-/**
+/*
   * FileTreePanel
-  * Copyright (C) 2021 Omega UI
+  * Copyright (C) 2022 Omega UI
 
   * This program is free software: you can redistribute it and/or modify
   * it under the terms of the GNU General Public License as published by
@@ -263,6 +263,32 @@ public void paint(Graphics graphics){
 		super.paint(g);
 		g.dispose();
 	}
+
+	public void transferFocusToPreviousBranch(FileTreeBranch currentBranch){
+		int currentBranchIndex = branches.indexOf(currentBranch);
+		if(currentBranchIndex == 0)
+			return;
+
+		FileTreeBranch bx = branches.get(currentBranchIndex - 1);
+		bx.grabFocus();
+		bx.repaint();
+
+		if(!scrollPane.getViewport().getViewRect().contains(bx.getBounds()))
+			scrollPane.getVerticalScrollBar().setValue(scrollPane.getVerticalScrollBar().getValue() - optimumBranchSize - gap);
+	}
+
+	public void transferFocusToNextBranch(FileTreeBranch currentBranch){
+		int currentBranchIndex = branches.indexOf(currentBranch);
+		if(currentBranchIndex == branches.size() - 1)
+			return;
+
+		FileTreeBranch bx = branches.get(currentBranchIndex + 1);
+		bx.grabFocus();
+		bx.repaint();
+
+		if(!scrollPane.getViewport().getViewRect().contains(bx.getBounds()))
+			scrollPane.getVerticalScrollBar().setValue(scrollPane.getVerticalScrollBar().getValue() + optimumBranchSize + gap);
+	}
 
 	public java.io.File getRoot() {
 		return root;