[JavaFx] ContextMenu Example

1. ContextMenu Example

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import javafx.scene.control.ContextMenu; import javafx.scene.control.Menu; import javafx.scene.control.MenuItem; import javafx.scene.control.SeparatorMenuItem; public class FxContextMenu { ContextMenu rootMenu; Menu currMenu; int fontSize = 12; public FxContextMenu(int fontsize) { rootMenu = new ContextMenu(); currMenu = null; fontSize = fontsize; } public FxContextMenu() { this(12); } public ContextMenu getMenu() { return rootMenu; } public void addMenu(String text) { currMenu = new Menu(text); currMenu.setStyle("-fx-font-size: " + fontSize + " pt;"); rootMenu.getItems().add(currMenu); } public void addMenuItem(Menu menu, String text, Runnable runnable) { MenuItem item; if( text != null ) { item = new MenuItem(text); if( runnable != null ) { item.setOnAction(e -> runnable.run()); } } else { item = new SeparatorMenuItem(); } if( fontSize > 0 ) { item.setStyle("-fx-font-size: " + fontSize + " pt;"); } if( menu != null ) { menu.getItems().add(item); } else { rootMenu.getItems().add(item); } } public void addMenuItem(String text, Runnable runnable) { addMenuItem( currMenu, text, runnable ); } public void addRootMenuItem(String text, Runnable runnable) { currMenu = null; addMenuItem( currMenu, text, runnable ); } }