Merge pull request #2511 from AhanuDewhirst/issue-2485

[#2485] Hide components

core/src/main/java/info/openrocket/core/rocketcomponent/RocketComponent.java

@@ -147,6 +147,12 @@ public abstract class RocketComponent implements ChangeSource, Cloneable, Iterab
 	// If true, component change events will not be fired
 	private boolean bypassComponentChangeEvent = false;
 
+	/**
+	 * Controls the visibility of the component. If false, the component will not be rendered.
+	 * Visibility does not affect component simulation.
+	 */
+	private boolean isVisible = true;
+	
 	
 	/**
 	 * Used to invalidate the component after calling {@link #copyFrom(RocketComponent)}.
@@ -2707,6 +2713,24 @@ public abstract class RocketComponent implements ChangeSource, Cloneable, Iterab
 		return false;
 	}
 
+	/**
+	 * Returns true if this component is visible.
+	 * @return True if this component is visible.
+	 * @apiNote The component is rendered if true is returned.
+	 */
+	public boolean isVisible() {
+		return isVisible;
+	}
+
+	/**
+	 * Sets the component's visibility to the specified value.
+	 * @param value Visibility value
+	 * @apiNote The component is rendered if the specified value is set to true.
+	 */
+	public void setVisible(boolean value) {
+		this.isVisible = value;
+		fireComponentChangeEvent(ComponentChangeEvent.GRAPHIC_CHANGE);
+	}
 	
 	///////////  Iterators  //////////	
 	

core/src/main/resources/l10n/messages.properties

@@ -50,6 +50,16 @@ RocketActions.MoveDownAct.ttip.Movedown = Move this component downwards.
 RocketActions.ExportOBJAct.ExportOBJ = Export as OBJ (.obj)
 RocketActions.ExportOBJAct.ttip.ExportOBJ = Export the selected components as a Wavefront OBJ 3D file.
 
+RocketActions.Visibility = Visibility
+RocketActions.VisibilityAct.ShowAll = Show all
+RocketActions.VisibilityAct.ttip.ShowAll = Show all components.
+RocketActions.VisibilityAct.HideAll = Hide all
+RocketActions.VisibilityAct.ttip.HideAll = Hide all components.
+RocketActions.VisibilityAct.ShowSelected = Show selected
+RocketActions.VisibilityAct.ttip.ShowSelected = Show selected components.
+RocketActions.VisibilityAct.HideSelected = Hide selected
+RocketActions.VisibilityAct.ttip.HideSelected = Hide selected components.
+
 ! RocketPanel
 RocketPanel.FigTypeAct.SideView = Side view
 RocketPanel.FigTypeAct.TopView = Top view

swing/src/main/java/info/openrocket/swing/gui/figure3d/RocketRenderer.java

@@ -215,6 +215,9 @@ public abstract class RocketRenderer {
 				throw new NullPointerException(" null motor from configuration.getActiveMotors...  this is a bug.");
 			}
 
+			if (!((RocketComponent) mount).isVisible()) {
+				continue;
+			}
 			double length = motor.getLength();
 		
 			Coordinate[] position = ((RocketComponent) mount).toAbsolute(new Coordinate(((RocketComponent) mount)

swing/src/main/java/info/openrocket/swing/gui/figure3d/geometry/ComponentRenderer.java

@@ -95,6 +95,9 @@ public class ComponentRenderer {
 		if (glu == null)
 			throw new IllegalStateException(this + " Not Initialized");
 
+		if (!c.isVisible()) {
+			return;
+		}
 		glu.gluQuadricNormals(q, GLU.GLU_SMOOTH);
 
 		if (c instanceof BodyTube) {

swing/src/main/java/info/openrocket/swing/gui/main/BasicFrame.java

@@ -52,8 +52,6 @@ import net.miginfocom.swing.MigLayout;
 
 import info.openrocket.core.file.wavefrontobj.export.OBJExportOptions;
 import info.openrocket.core.file.wavefrontobj.export.OBJExporterFactory;
-import info.openrocket.core.file.wavefrontobj.CoordTransform;
-import info.openrocket.core.file.wavefrontobj.DefaultCoordTransform;
 import info.openrocket.core.logging.ErrorSet;
 import info.openrocket.core.logging.WarningSet;
 import info.openrocket.core.appearance.DecalImage;
@@ -257,6 +255,7 @@ public class BasicFrame extends JFrame {
 
 			popupMenu.addSeparator();
 			popupMenu.add(actions.getScaleAction());
+			popupMenu.add(actions.getToggleVisibilityAction());
 
 			popupMenu.addSeparator();
 			popupMenu.add(actions.getExportOBJAction());
@@ -608,6 +607,15 @@ public class BasicFrame extends JFrame {
 		item = new JMenuItem(actions.getScaleAction());
 		editMenu.add(item);
 
+		////	Visibility
+		JMenu visibilitySubMenu = new JMenu(trans.get("RocketActions.Visibility"));
+		editMenu.add(visibilitySubMenu);
+		item = new JMenuItem(actions.getToggleVisibilityAction());
+		visibilitySubMenu.add(item);
+		item = new JMenuItem(actions.getShowAllComponentsAction());
+		visibilitySubMenu.add(item);
+
+		editMenu.addSeparator();
 
 		////	Preferences
 		item = new JMenuItem(trans.get("main.menu.edit.preferences"));

swing/src/main/java/info/openrocket/swing/gui/main/RocketActions.java

@@ -5,11 +5,7 @@ import java.awt.Toolkit;
 import java.awt.event.ActionEvent;
 import java.awt.event.KeyEvent;
 import java.io.Serial;
-import java.util.ArrayList;
+import java.util.*;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.LinkedList;
-import java.util.List;
 
 import javax.swing.AbstractAction;
 import javax.swing.Action;
@@ -18,8 +14,11 @@ import javax.swing.JOptionPane;
 import javax.swing.KeyStroke;
 import javax.swing.event.ListSelectionEvent;
 import javax.swing.event.ListSelectionListener;
+
+import info.openrocket.core.rocketcomponent.*;
 import info.openrocket.swing.gui.configdialog.ComponentConfigDialog;
 import info.openrocket.swing.gui.dialogs.ScaleDialog;
+import info.openrocket.swing.gui.util.GUIUtil;
 import info.openrocket.swing.gui.util.Icons;
 
 import org.slf4j.Logger;
@@ -31,12 +30,6 @@ import info.openrocket.core.document.OpenRocketDocument;
 import info.openrocket.core.document.Simulation;
 import info.openrocket.core.l10n.Translator;
 import info.openrocket.core.logging.Markers;
-import info.openrocket.core.rocketcomponent.ComponentChangeEvent;
-import info.openrocket.core.rocketcomponent.ComponentChangeListener;
-import info.openrocket.core.rocketcomponent.ParallelStage;
-import info.openrocket.core.rocketcomponent.Rocket;
-import info.openrocket.core.rocketcomponent.RocketComponent;
-import info.openrocket.core.rocketcomponent.AxialStage;
 import info.openrocket.core.startup.Application;
 import info.openrocket.core.util.ORColor;
 import info.openrocket.core.util.Pair;
@@ -81,6 +74,8 @@ public class RocketActions {
 	private final RocketAction moveUpAction;
 	private final RocketAction moveDownAction;
 	private final RocketAction exportOBJAction;
+	private final RocketAction toggleVisibilityAction;
+	private final RocketAction showAllComponentsAction;
 	private static final Translator trans = Application.getTranslator();
 	private static final Logger log = LoggerFactory.getLogger(RocketActions.class);
 
@@ -106,6 +101,8 @@ public class RocketActions {
 		this.moveUpAction = new MoveUpAction();
 		this.moveDownAction = new MoveDownAction();
 		this.exportOBJAction = new ExportOBJAction();
+		this.toggleVisibilityAction = new ToggleVisibilityAction();
+		this.showAllComponentsAction = new ShowAllComponentsAction();
 
 		OpenRocketClipboard.addClipboardListener(new ClipboardListener() {
 			@Override
@@ -154,6 +151,8 @@ public class RocketActions {
 		moveUpAction.clipboardChanged();
 		moveDownAction.clipboardChanged();
 		exportOBJAction.clipboardChanged();
+		toggleVisibilityAction.clipboardChanged();
+		showAllComponentsAction.clipboardChanged();
 	}
 	
 
@@ -207,6 +206,14 @@ public class RocketActions {
 		return exportOBJAction;
 	}
 
+	public Action getToggleVisibilityAction() {
+		return toggleVisibilityAction;
+	}
+
+	public Action getShowAllComponentsAction() {
+		return showAllComponentsAction;
+	}
+
 	/**
 	 * Tie an action to a JButton, without using the icon or text of the action for the button.
 	 *
@@ -482,7 +489,26 @@ public class RocketActions {
 		return result;
 	}
 
+	/**
+	 * Returns all descendants of the specified component.
+	 *
+	 * @param component Component to query
+	 * @return All descendants
+	 * @apiNote Returns an empty set if the component does not have children.
+	 */
+	private Set<RocketComponent> getDescendants(RocketComponent component) {
+		Objects.requireNonNull(component);
 
+		var result = new LinkedHashSet<RocketComponent>();
+		var queue = new ArrayDeque<>(component.getChildren());
+
+		while (!queue.isEmpty()) {
+			var node = queue.pop();
+			result.add(node);
+			node.getChildren().stream().filter(c -> !result.contains(c)).forEach(queue::add);
+		}
+		return result;
+	}
 	
 
 	///////  Action classes
@@ -1257,4 +1283,121 @@ public class RocketActions {
 		}
 	}
 
+	/**
+	 * Action to toggle the visibility of the selected components.
+	 * @see RocketComponent#isVisible()
+	 */
+	private class ToggleVisibilityAction extends RocketAction {
+		public ToggleVisibilityAction() {
+			super.putValue(NAME, trans.get("RocketActions.VisibilityAct.HideSelected"));
+			super.putValue(SHORT_DESCRIPTION, trans.get("RocketActions.VisibilityAct.ttip.HideSelected"));
+			super.putValue(SMALL_ICON, GUIUtil.getUITheme().getVisibilityHiddenIcon());
+			clipboardChanged();
+		}
+
+		@Override
+		public void clipboardChanged() {
+			var components = new ArrayList<>(selectionModel.getSelectedComponents());
+			super.setEnabled(!components.isEmpty());
+
+			if (components.isEmpty()) {
+				return;
+			}
+
+			if (isRocketSelected(components)) {
+				super.putValue(NAME, rocket.isVisible() ?
+						trans.get("RocketActions.VisibilityAct.HideAll") :
+						trans.get("RocketActions.VisibilityAct.ShowAll"));
+				super.putValue(SHORT_DESCRIPTION, rocket.isVisible() ?
+						trans.get("RocketActions.VisibilityAct.ttip.HideAll") :
+						trans.get("RocketActions.VisibilityAct.ttip.ShowAll"));
+				super.putValue(SMALL_ICON, rocket.isVisible() ?
+						GUIUtil.getUITheme().getVisibilityHiddenIcon() :
+						GUIUtil.getUITheme().getVisibilityShowingIcon());
+			} else {
+				var visibility = components.stream().anyMatch(RocketComponent::isVisible);
+				super.putValue(NAME, visibility ?
+						trans.get("RocketActions.VisibilityAct.HideSelected") :
+						trans.get("RocketActions.VisibilityAct.ShowSelected"));
+				super.putValue(SHORT_DESCRIPTION, visibility ?
+						trans.get("RocketActions.VisibilityAct.ttip.HideSelected") :
+						trans.get("RocketActions.VisibilityAct.ttip.ShowSelected"));
+				super.putValue(SMALL_ICON, visibility ?
+						GUIUtil.getUITheme().getVisibilityHiddenIcon() :
+						GUIUtil.getUITheme().getVisibilityShowingIcon());
+			}
+		}
+
+		@Override
+		public void actionPerformed(ActionEvent e) {
+			var components = new ArrayList<>(selectionModel.getSelectedComponents());
+
+			if (components.isEmpty()) {
+				return;
+			}
+
+			// Toggle the visibility of the rocket and its descendants
+			if (isRocketSelected(components)) {
+				var rocketVisibility = !rocket.isVisible();
+				rocket.setVisible(rocketVisibility);
+				getDescendants(rocket).forEach(descendant -> descendant.setVisible(rocketVisibility));
+				return;
+			}
+			var visibility = components.stream().noneMatch(RocketComponent::isVisible);
+
+			// Toggle the visibility of all non-stage and non-rocket components
+			components.stream().filter(c -> !(c instanceof AxialStage || c instanceof Rocket)).forEach(component -> {
+				component.setVisible(visibility);
+
+				// Update the visibility of this component's stage
+				var stage = component.getStage();
+				stage.setVisible(getDescendants(stage).stream().anyMatch(RocketComponent::isVisible));
+
+				// Update the visibility of the rocket
+				rocket.setVisible(getDescendants(rocket).stream().anyMatch(RocketComponent::isVisible));
+			});
+
+			// Toggle the visibility of all stage components and their descendants
+			components.stream().filter(AxialStage.class::isInstance).forEach(stage -> {
+				stage.setVisible(visibility);
+				getDescendants(stage).forEach(descendant -> descendant.setVisible(visibility));
+			});
+		}
+
+		/**
+		 * Returns true if the rocket or all descendant are in the specified list.
+		 *
+		 * @param components Components to query
+		 * @return True if all components are selected
+		 */
+		private boolean isRocketSelected(List<RocketComponent> components) {
+			var rocketSelected = components.stream().anyMatch(Rocket.class::isInstance);
+			var allComponentsSelected = getDescendants(rocket).size() == components.size();
+			return rocketSelected || allComponentsSelected;
+		}
+	}
+
+	/**
+	 * Action to show all hidden components.
+	 * @see RocketComponent#isVisible()
+	 */
+	private class ShowAllComponentsAction extends RocketAction {
+		public ShowAllComponentsAction() {
+			super.putValue(NAME, trans.get("RocketActions.VisibilityAct.ShowAll"));
+			super.putValue(SHORT_DESCRIPTION, trans.get("RocketActions.VisibilityAct.ttip.ShowAll"));
+			super.putValue(SMALL_ICON, GUIUtil.getUITheme().getVisibilityShowingIcon());
+			clipboardChanged();
+		}
+
+		@Override
+		public void clipboardChanged() {
+			super.setEnabled(getDescendants(rocket).stream().anyMatch(c -> !c.isVisible()));
+		}
+
+		@Override
+		public void actionPerformed(ActionEvent e) {
+			rocket.setVisible(true);
+			getDescendants(rocket).forEach(descendant -> descendant.setVisible(true));
+		}
+	}
 }

swing/src/main/java/info/openrocket/swing/gui/main/componenttree/ComponentTreeRenderer.java

@@ -3,23 +3,16 @@ package info.openrocket.swing.gui.main.componenttree;
 import java.awt.BorderLayout;
 import java.awt.Color;
 import java.awt.Component;
-import java.awt.FlowLayout;
-import java.awt.Font;
 import java.awt.Graphics;
 import java.util.LinkedList;
 import java.util.List;
 
-import javax.swing.BorderFactory;
-import javax.swing.BoxLayout;
 import javax.swing.Icon;
-import javax.swing.ImageIcon;
 import javax.swing.JComponent;
 import javax.swing.JLabel;
 import javax.swing.JPanel;
 import javax.swing.JTree;
-import javax.swing.SwingConstants;
 import javax.swing.UIManager;
-import javax.swing.border.Border;
 import javax.swing.tree.DefaultTreeCellRenderer;
 import javax.swing.tree.TreePath;
 
@@ -35,6 +28,7 @@ import info.openrocket.core.startup.Application;
 import info.openrocket.core.unit.UnitGroup;
 import info.openrocket.core.util.ArrayList;
 import info.openrocket.core.util.TextUtil;
+import info.openrocket.swing.gui.util.Icons;
 
 @SuppressWarnings("serial")
 public class ComponentTreeRenderer extends DefaultTreeCellRenderer {
@@ -45,6 +39,7 @@ public class ComponentTreeRenderer extends DefaultTreeCellRenderer {
 	private static Color textSelectionForegroundColor;
 	private static Color componentTreeBackgroundColor;
 	private static Color componentTreeForegroundColor;
+	private static Color visibilityHiddenForegroundColor;
 	private static Icon massOverrideSubcomponentIcon;
 	private static Icon massOverrideIcon;
 	private static Icon CGOverrideSubcomponentIcon;
@@ -92,6 +87,11 @@ public class ComponentTreeRenderer extends DefaultTreeCellRenderer {
 		RocketComponent c = (RocketComponent) value;
 		applyToolTipText(components, c, panel);
 
+		// Set the cell text color if component is hidden
+		if (!c.isVisible() && !sel) {
+			label.setForeground(visibilityHiddenForegroundColor);
+		}
+
 		// Set the tree icon
 		final Icon treeIcon;
 		if (c.getClass().isAssignableFrom(MassComponent.class)) {
@@ -103,10 +103,11 @@ public class ComponentTreeRenderer extends DefaultTreeCellRenderer {
 
 		panel.add(new JLabel(treeIcon), BorderLayout.WEST);
 
-		// Add mass/CG/CD overridden icons
+		// Add mass/CG/CD overridden and component hidden icons
 		if (c.isMassOverridden() || c.getMassOverriddenBy() != null ||
 				c.isCGOverridden() || c.getCGOverriddenBy() != null ||
-				c.isCDOverridden() || c.getCDOverriddenBy() != null) {
+				c.isCDOverridden() || c.getCDOverriddenBy() != null ||
+				!c.isVisible()) {
 			List<Icon> icons = new LinkedList<>();
 			if (c.getMassOverriddenBy() != null) {
 				icons.add(massOverrideSubcomponentIcon);
@@ -123,6 +124,9 @@ public class ComponentTreeRenderer extends DefaultTreeCellRenderer {
 			} else if (c.isCDOverridden()) {
 				icons.add(CDOverrideIcon);
 			}
+			if (!c.isVisible()) {
+				icons.add(Icons.COMPONENT_HIDDEN);
+			}
 
 			Icon combinedIcon = combineIcons(3, icons.toArray(new Icon[0]));
 			JLabel overrideIconsLabel = new JLabel(combinedIcon);
@@ -144,6 +148,7 @@ public class ComponentTreeRenderer extends DefaultTreeCellRenderer {
 		CGOverrideIcon = GUIUtil.getUITheme().getCGOverrideIcon();
 		CDOverrideSubcomponentIcon = GUIUtil.getUITheme().getCDOverrideSubcomponentIcon();
 		CDOverrideIcon = GUIUtil.getUITheme().getCDOverrideIcon();
+		visibilityHiddenForegroundColor = GUIUtil.getUITheme().getVisibilityHiddenForegroundColor();
 	}
 
 	private void applyToolTipText(List<RocketComponent> components, RocketComponent c, JComponent comp) {

swing/src/main/java/info/openrocket/swing/gui/scalefigure/RocketFigure.java

@@ -265,6 +265,10 @@ public class RocketFigure extends AbstractScaleFigure {
 		while (!figureShapesCopy.isEmpty()) {
 			RocketComponentShapes rcs = figureShapesCopy.poll();
 			RocketComponent c = rcs.getComponent();
+
+			if (!c.isVisible()) {
+				continue;
+			}
 			boolean selected = false;
 			
 			// Check if component is in the selection
@@ -322,6 +326,10 @@ public class RocketFigure extends AbstractScaleFigure {
 			double motorRadius = motor.getDiameter() / 2;
 			RocketComponent mountComponent = ((RocketComponent) mount);
 
+			if (!mountComponent.isVisible()) {
+				continue;
+			}
+
 			// <component>.getLocation() will return all the parent instances of this owning component,  AND all of it's own instances as well.
 			// so, just draw a motor once for each Coordinate returned... 
 			Coordinate[] mountLocations = mount.getLocations();

swing/src/main/java/info/openrocket/swing/gui/theme/UITheme.java

@@ -85,6 +85,7 @@ public class UITheme {
 
         Color getComponentTreeBackgroundColor();
         Color getComponentTreeForegroundColor();
+        Color getVisibilityHiddenForegroundColor();
 
         Color getFinPointGridMajorLineColor();
         Color getFinPointGridMinorLineColor();
@@ -99,6 +100,9 @@ public class UITheme {
         Icon getCDOverrideIcon();
         Icon getCDOverrideSubcomponentIcon();
 
+        Icon getVisibilityHiddenIcon();
+        Icon getVisibilityShowingIcon();
+
         Border getBorder();
         Border getMarginBorder();
         Border getUnitSelectorBorder();
@@ -369,6 +373,11 @@ public class UITheme {
                 return UIManager.getColor("Tree.textForeground");
             }
 
+            @Override
+            public Color getVisibilityHiddenForegroundColor() {
+                return UIManager.getColor("Tree.textForeground.hidden.light");
+            }
+
             @Override
             public Color getFinPointGridMajorLineColor() {
                 return new Color( 0, 0, 255, 80);
@@ -424,6 +433,16 @@ public class UITheme {
                 return Icons.CD_OVERRIDE_SUBCOMPONENT_LIGHT;
             }
 
+            @Override
+            public Icon getVisibilityHiddenIcon() {
+                return Icons.COMPONENT_HIDDEN_LIGHT;
+            }
+
+            @Override
+            public Icon getVisibilityShowingIcon() {
+                return Icons.COMPONENT_SHOWING_LIGHT;
+            }
+
             @Override
             public Border getBorder() {
                 return new FlatBorder();
@@ -755,6 +774,11 @@ public class UITheme {
                 return getTextColor();
             }
 
+            @Override
+            public Color getVisibilityHiddenForegroundColor() {
+                return UIManager.getColor("Tree.textForeground.hidden.dark");
+            }
+
             @Override
             public Color getFinPointGridMajorLineColor() {
                 return new Color(135, 135, 199, 197);
@@ -810,6 +834,16 @@ public class UITheme {
                 return Icons.CD_OVERRIDE_SUBCOMPONENT_DARK;
             }
 
+            @Override
+            public Icon getVisibilityHiddenIcon() {
+                return Icons.COMPONENT_HIDDEN_DARK;
+            }
+
+            @Override
+            public Icon getVisibilityShowingIcon() {
+                return Icons.COMPONENT_SHOWING_DARK;
+            }
+
             @Override
             public Border getBorder() {
                 return new FlatBorder();
@@ -1141,6 +1175,11 @@ public class UITheme {
                 return getTextColor();
             }
 
+            @Override
+            public Color getVisibilityHiddenForegroundColor() {
+                return UIManager.getColor("Tree.textForeground.hidden.dark");
+            }
+
             @Override
             public Color getFinPointGridMajorLineColor() {
                 return new Color(164, 164, 224, 197);
@@ -1196,6 +1235,16 @@ public class UITheme {
                 return Icons.CD_OVERRIDE_SUBCOMPONENT_DARK;
             }
 
+            @Override
+            public Icon getVisibilityHiddenIcon() {
+                return Icons.COMPONENT_HIDDEN_DARK;
+            }
+
+            @Override
+            public Icon getVisibilityShowingIcon() {
+                return Icons.COMPONENT_SHOWING_DARK;
+            }
+
             @Override
             public Border getBorder() {
                 return new FlatBorder();
@@ -1546,6 +1595,11 @@ public class UITheme {
                 return getCurrentTheme().getComponentTreeForegroundColor();
             }
 
+            @Override
+            public Color getVisibilityHiddenForegroundColor() {
+                return getCurrentTheme().getVisibilityHiddenForegroundColor();
+            }
+
             @Override
             public Color getFinPointGridMajorLineColor() {
                 return getCurrentTheme().getFinPointGridMajorLineColor();
@@ -1601,6 +1655,16 @@ public class UITheme {
                 return getCurrentTheme().getCDOverrideSubcomponentIcon();
             }
 
+            @Override
+            public Icon getVisibilityHiddenIcon() {
+                return getCurrentTheme().getVisibilityHiddenIcon();
+            }
+
+            @Override
+            public Icon getVisibilityShowingIcon() {
+                return getCurrentTheme().getVisibilityHiddenIcon();
+            }
+
             @Override
             public Border getBorder() {
                 return getCurrentTheme().getBorder();

swing/src/main/java/info/openrocket/swing/gui/util/Icons.java

@@ -117,6 +117,12 @@ public class Icons {
 	public static final Icon CD_OVERRIDE_SUBCOMPONENT_LIGHT = loadImageIcon("pix/icons/cd-override-subcomponent_light.png", "CD Override Subcomponent");
 	public static final Icon CD_OVERRIDE_SUBCOMPONENT_DARK = loadImageIcon("pix/icons/cd-override-subcomponent_dark.png", "CD Override Subcomponent");
 
+	public static final Icon COMPONENT_HIDDEN = loadImageIcon("pix/icons/component-hidden.png", "Component Hidden");
+	public static final Icon COMPONENT_HIDDEN_DARK = loadImageIcon("pix/icons/component-hidden_dark.png", "Component Hidden");
+	public static final Icon COMPONENT_HIDDEN_LIGHT = loadImageIcon("pix/icons/component-hidden_light.png", "Component Hidden");
+	public static final Icon COMPONENT_SHOWING_DARK = loadImageIcon("pix/icons/component-showing_dark.png", "Component Showing");
+	public static final Icon COMPONENT_SHOWING_LIGHT = loadImageIcon("pix/icons/component-showing_light.png", "Component Showing");
+
 	// MANUFACTURERS ICONS
 	public static final Icon RASAERO = loadImageIcon("pix/icons/RASAero_16.png", "RASAero Icon");
 	public static final Icon ROCKSIM = loadImageIcon("pix/icons/Rocksim_16.png", "Rocksim Icon");

swing/src/main/resources/themes/FlatLaf.properties

@@ -9,6 +9,8 @@ Tree.paintLines = true
 Tree.showCellFocusIndicator = true
 Tree.wideSelection = true
 Tree.paintSelection = true
+Tree.textForeground.hidden.dark = darken($Tree.textForeground, 25%)
+Tree.textForeground.hidden.light = lighten($Tree.textForeground, 25%)
 
 # Margin as top,left,bottom,right
 Tree.rendererMargins = 2, 0, 3, 0