TabbedPane: support specifying hiddenTabsNavigation type per tabbedpane via client property (issue #40)

flatlaf-core/src/main/java/com/formdev/flatlaf/FlatClientProperties.java

@@ -240,6 +240,30 @@ public interface FlatClientProperties
 	 */
 	String TABBED_PANE_TAB_HEIGHT = "JTabbedPane.tabHeight";
 
+	/**
+	 * Specifies how to navigate to hidden tabs.
+	 * <p>
+	 * <strong>Component</strong> {@link javax.swing.JTabbedPane}<br>
+	 * <strong>Value type</strong> {@link java.lang.String}
+	 * <strong>Allowed Values</strong> {@link #TABBED_PANE_HIDDEN_TABS_NAVIGATION_MORE_TABS_BUTTON}
+	 * or {@link #TABBED_PANE_HIDDEN_TABS_NAVIGATION_ARROW_BUTTONS}
+	 */
+	String TABBED_PANE_HIDDEN_TABS_NAVIGATION = "JTabbedPane.hiddenTabsNavigation";
+
+	/**
+	 * Use "more tabs" button for navigation to hidden tabs.
+	 *
+	 * @see #TABBED_PANE_HIDDEN_TABS_NAVIGATION
+	 */
+	String TABBED_PANE_HIDDEN_TABS_NAVIGATION_MORE_TABS_BUTTON = "moreTabsButton";
+
+	/**
+	 * Use forward/backward buttons for navigation to hidden tabs.
+	 *
+	 * @see #TABBED_PANE_HIDDEN_TABS_NAVIGATION
+	 */
+	String TABBED_PANE_HIDDEN_TABS_NAVIGATION_ARROW_BUTTONS = "arrowButtons";
+
 	/**
 	 * Specifies whether all text is selected when the text component gains focus.
 	 * <p>

flatlaf-core/src/main/java/com/formdev/flatlaf/ui/FlatTabbedPaneUI.java

@@ -268,13 +268,27 @@ public class FlatTabbedPaneUI
 			}
 		}
 
-		// initialize here because used in installHiddenTabsNavigation() before installDefaults() was invoked
-		hiddenTabsNavigation = parseHiddenTabsNavigation( UIManager.getString( "TabbedPane.hiddenTabsNavigation" ) );
-
 		installHiddenTabsNavigation();
 	}
 
-	private void installHiddenTabsNavigation() {
+	@Override
+	protected void uninstallComponents() {
+		// uninstall hidden tabs navigation before invoking super.uninstallComponents() for
+		// correct uninstallation of BasicTabbedPaneUI tab scroller support
+		uninstallHiddenTabsNavigation();
+
+		super.uninstallComponents();
+
+		tabViewport = null;
+	}
+
+	protected void installHiddenTabsNavigation() {
+		// initialize here because used in installHiddenTabsNavigation() before installDefaults() was invoked
+		String hiddenTabsNavigationStr = (String) tabPane.getClientProperty( TABBED_PANE_HIDDEN_TABS_NAVIGATION );
+		if( hiddenTabsNavigationStr == null )
+			hiddenTabsNavigationStr = UIManager.getString( "TabbedPane.hiddenTabsNavigation" );
+		hiddenTabsNavigation = parseHiddenTabsNavigation( hiddenTabsNavigationStr );
+
 		if( hiddenTabsNavigation != MORE_TABS_BUTTON ||
 			!isScrollTabLayout() ||
 			tabViewport == null )
@@ -293,21 +307,16 @@ public class FlatTabbedPaneUI
 		tabPane.add( moreTabsButton );
 	}
 
-	@Override
+	protected void uninstallHiddenTabsNavigation() {
-	protected void uninstallComponents() {
 		// restore layout manager before invoking super.uninstallComponents() for
 		// correct uninstallation of BasicTabbedPaneUI tab scroller support
 		if( tabPane.getLayout() instanceof FlatTabbedPaneScrollLayout )
 			tabPane.setLayout( ((FlatTabbedPaneScrollLayout)tabPane.getLayout()).delegate );
 
-		super.uninstallComponents();
-
 		if( moreTabsButton != null ) {
 			tabPane.remove( moreTabsButton );
 			moreTabsButton = null;
 		}
-
-		tabViewport = null;
 	}
 
 	@Override
@@ -1276,6 +1285,12 @@ public class FlatTabbedPaneUI
 					tabPane.revalidate();
 					tabPane.repaint();
 					break;
+
+				case TABBED_PANE_HIDDEN_TABS_NAVIGATION:
+					uninstallHiddenTabsNavigation();
+					installHiddenTabsNavigation();
+					tabPane.repaint();
+					break;
 			}
 		}
 

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatContainerTest.java

@@ -16,9 +16,7 @@
 
 package com.formdev.flatlaf.testing;
 
-import static com.formdev.flatlaf.FlatClientProperties.TABBED_PANE_HAS_FULL_BORDER;
+import static com.formdev.flatlaf.FlatClientProperties.*;
-import static com.formdev.flatlaf.FlatClientProperties.TABBED_PANE_SHOW_CONTENT_SEPARATOR;
-import static com.formdev.flatlaf.FlatClientProperties.TABBED_PANE_SHOW_TAB_SEPARATORS;
 import java.awt.*;
 import javax.swing.*;
 import javax.swing.border.*;
@@ -230,6 +228,19 @@ public class FlatContainerTest
 		tabbedPane4.setTabPlacement( (tabPlacement >= 0) ? tabPlacement : SwingConstants.RIGHT );
 	}
 
+	private void hiddenTabsNavigationChanged() {
+		String value = null;
+		switch( (String) hiddenTabsNavigationField.getSelectedItem() ) {
+			case "moreTabsButton":	value = TABBED_PANE_HIDDEN_TABS_NAVIGATION_MORE_TABS_BUTTON; break;
+			case "arrowButtons":	value = TABBED_PANE_HIDDEN_TABS_NAVIGATION_ARROW_BUTTONS; break;
+		}
+
+		tabbedPane1.putClientProperty( TABBED_PANE_HIDDEN_TABS_NAVIGATION, value );
+		tabbedPane2.putClientProperty( TABBED_PANE_HIDDEN_TABS_NAVIGATION, value );
+		tabbedPane3.putClientProperty( TABBED_PANE_HIDDEN_TABS_NAVIGATION, value );
+		tabbedPane4.putClientProperty( TABBED_PANE_HIDDEN_TABS_NAVIGATION, value );
+	}
+
 	private void tabBackForegroundChanged() {
 		boolean enabled = tabBackForegroundCheckBox.isSelected();
 		tabbedPane1.setBackgroundAt( 0, enabled ? Color.red : null );
@@ -267,6 +278,8 @@ public class FlatContainerTest
 		hasFullBorderCheckBox = new JCheckBox();
 		JLabel tabPlacementLabel = new JLabel();
 		tabPlacementField = new JComboBox<>();
+		JLabel hiddenTabsNavigationLabel = new JLabel();
+		hiddenTabsNavigationField = new JComboBox<>();
 		tabBackForegroundCheckBox = new JCheckBox();
 		CellConstraints cc = new CellConstraints();
 
@@ -452,6 +465,19 @@ public class FlatContainerTest
 				tabPlacementField.addActionListener(e -> tabPlacementChanged());
 				panel14.add(tabPlacementField, "cell 1 2");
 
+				//---- hiddenTabsNavigationLabel ----
+				hiddenTabsNavigationLabel.setText("Hidden tabs navigation:");
+				panel14.add(hiddenTabsNavigationLabel, "cell 2 2");
+
+				//---- hiddenTabsNavigationField ----
+				hiddenTabsNavigationField.setModel(new DefaultComboBoxModel<>(new String[] {
+					"default",
+					"moreTabsButton",
+					"arrowButtons"
+				}));
+				hiddenTabsNavigationField.addActionListener(e -> hiddenTabsNavigationChanged());
+				panel14.add(hiddenTabsNavigationField, "cell 3 2");
+
 				//---- tabBackForegroundCheckBox ----
 				tabBackForegroundCheckBox.setText("Tab back/foreground");
 				tabBackForegroundCheckBox.addActionListener(e -> tabBackForegroundChanged());
@@ -479,6 +505,7 @@ public class FlatContainerTest
 	private JCheckBox customTabsCheckBox;
 	private JCheckBox hasFullBorderCheckBox;
 	private JComboBox<String> tabPlacementField;
+	private JComboBox<String> hiddenTabsNavigationField;
 	private JCheckBox tabBackForegroundCheckBox;
 	// JFormDesigner - End of variables declaration  //GEN-END:variables
 

flatlaf-testing/src/main/java/com/formdev/flatlaf/testing/FlatContainerTest.jfd

@@ -275,6 +275,28 @@ new FormModel {
 					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
 						"value": "cell 1 2"
 					} )
+					add( new FormComponent( "javax.swing.JLabel" ) {
+						name: "hiddenTabsNavigationLabel"
+						"text": "Hidden tabs navigation:"
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 2 2"
+					} )
+					add( new FormComponent( "javax.swing.JComboBox" ) {
+						name: "hiddenTabsNavigationField"
+						"model": new javax.swing.DefaultComboBoxModel {
+							selectedItem: "default"
+							addElement( "default" )
+							addElement( "moreTabsButton" )
+							addElement( "arrowButtons" )
+						}
+						auxiliary() {
+							"JavaCodeGenerator.variableLocal": false
+							"JavaCodeGenerator.typeParameters": "String"
+						}
+						addEvent( new FormEvent( "java.awt.event.ActionListener", "actionPerformed", "hiddenTabsNavigationChanged", false ) )
+					}, new FormLayoutConstraints( class net.miginfocom.layout.CC ) {
+						"value": "cell 3 2"
+					} )
 					add( new FormComponent( "javax.swing.JCheckBox" ) {
 						name: "tabBackForegroundCheckBox"
 						"text": "Tab back/foreground"