Javafx 2 使用FXML在窗格中创建上下文菜单
我有一个在JavaFXML中的窗格上定义ContextMenu的工作示例,但我不确定它是否是最佳的。目前,只有JavaFX标准控件(例如按钮、文本字段)定义用于指定弹出式上下文菜单的属性。然而,我想让弹出菜单出现在窗格中的任何位置,在我的例子中是VBox 我采用了扩展VBox的方法来支持上下文菜单。这是一个“笨重”的解决方案,但有效。有更好的方法吗?我是否遗漏了一些基本概念 这是我的解决方案 FXML: 控制器Javafx 2 使用FXML在窗格中创建上下文菜单,javafx-2,javafx,fxml,Javafx 2,Javafx,Fxml,我有一个在JavaFXML中的窗格上定义ContextMenu的工作示例,但我不确定它是否是最佳的。目前,只有JavaFX标准控件(例如按钮、文本字段)定义用于指定弹出式上下文菜单的属性。然而,我想让弹出菜单出现在窗格中的任何位置,在我的例子中是VBox 我采用了扩展VBox的方法来支持上下文菜单。这是一个“笨重”的解决方案,但有效。有更好的方法吗?我是否遗漏了一些基本概念 这是我的解决方案 FXML: 控制器 package custommenu.controller; import jav
package custommenu.controller;
import javafx.fxml.FXML;
import javafx.scene.control.ContextMenu;
import javafx.scene.input.ContextMenuEvent;
import javafx.scene.layout.VBox;
public class CustomMenuController {
@FXML private VBox vbox;
@FXML private ContextMenu menu;
@FXML public void add() {
System.out.println("add");
}
@FXML
public void showMenu(ContextMenuEvent event) {
System.out.println("showMenu");
menu.show(vbox, event.getScreenX(), event.getScreenY());
event.consume();
}
@FXML public void hideMenu() {
menu.hide();
}
}
主应用程序
package custommenu;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.Pane;
import javafx.stage.Stage;
public class CustomMenuApplication extends Application {
@Override
public void start(Stage primaryStage) throws Exception {
Pane myPane = (Pane)FXMLLoader.load(getClass().getResource("/custommenu/custom_menu_main.fxml"));
Scene scene = new Scene(myPane);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
launch(args);
}
}
是否尝试在弹出窗口中执行此操作?捕获MouseButton.SECONDARY的MouseEvent检查,并在弹出窗口中显示您的VBox
private void showContextMenu() // showContextMenu(MouseEvent event)
{
Popup popup = new Popup();
VBox content = new VBox();
Button b = new Button("Click Me!");
b.setOnAction(new EventHandler<ActionEvent>() { });
content.getChildren().addAll(b);
popup.getContent().add(content);
popup.setX(0); // or get mouse event x and y
popup.setY(0); // event.getY()
popup.setAutoHide(true);
popup.show(your popup owner);
}
private void showContextMenu()//showContextMenu(MouseEvent事件)
{
Popup Popup=新的Popup();
VBox内容=新的VBox();
按钮b=新按钮(“单击我!”);
b、 setOnAction(新的EventHandler(){});
content.getChildren().addAll(b);
popup.getContent().add(内容);
popup.setX(0);//或获取鼠标事件x和y
popup.setY(0);//event.getY()
popup.setAutoHide(true);
显示(您的弹出窗口所有者);
}
在本例中,当单击左/右按钮时,有一个按钮具有上下文菜单。当您单击除按钮之外的其他区域时,它将打开弹出窗口。它将隐藏弹出窗口上下文菜单
公共类主扩展应用程序{
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
Scene scene = new Scene(new Group(), 450, 250);
Button notification = new Button();
MenuItem item1 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item2 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
MenuItem item3 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item4 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
MenuItem item5 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item6 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
MenuItem item7 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item8 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
final ContextMenu contextMenu = new ContextMenu(item1, item2,item3, item4,item5, item6,item7, item8);
contextMenu.setMaxSize(50, 50);
contextMenu.setOnShowing(new EventHandler<WindowEvent>() {
public void handle(WindowEvent e) {
System.out.println("showing");
}
});
contextMenu.setOnShown(new EventHandler<WindowEvent>() {
public void handle(WindowEvent e) {
System.out.println("shown");
}
});
// contextMenu.hide();
notification.setContextMenu(contextMenu);
GridPane grid = new GridPane();
grid.setVgap(4);
grid.setHgap(10);
grid.setPadding(new Insets(5, 5, 5, 5));
grid.add(new Label("To: "), 0, 0);
grid.add(notification, 1, 0);
Group root = (Group) scene.getRoot();
root.getChildren().add(grid);
stage.setScene(scene);
stage.show();
notification.addEventHandler(MouseEvent.MOUSE_CLICKED, (MouseEvent me)->{
if(me.getButton()==MouseButton.PRIMARY ){
System.out.println("Mouse Left Pressed");
System.out.println(notification.getScaleX());
System.out.println(notification.getScaleY());
System.out.println(me.getScreenX());
System.out.println(me.getScreenY());
contextMenu.show(notification,me.getScreenX(),me.getScreenY());
}else{
contextMenu.hide();
}
});
}
publicstaticvoidmain(字符串[]args){
发射(args);
}
@凌驾
公众假期开始(阶段){
场景=新场景(新组(),450,250);
按钮通知=新按钮();
MenuItem1=新MenuItem(“关于”);
item1.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“关于”);
}
});
MenuItem2=新MenuItem(“首选项”);
item2.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“首选项”);
}
});
MenuItem3=新MenuItem(“关于”);
item1.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“关于”);
}
});
MenuItem4=新MenuItem(“首选项”);
item2.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“首选项”);
}
});
MenuItem5=新MenuItem(“关于”);
item1.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“关于”);
}
});
MenuItem6=新MenuItem(“首选项”);
item2.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“首选项”);
}
});
MenuItem7=新MenuItem(“关于”);
item1.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“关于”);
}
});
MenuItem8=新MenuItem(“首选项”);
item2.setOnAction(新的EventHandler(){
公共无效句柄(ActionEvent e){
System.out.println(“首选项”);
}
});
最终上下文菜单上下文菜单=新上下文菜单(项目1、项目2、项目3、项目4、项目5、项目6、项目7、项目8);
setMaxSize(50,50);
setOnShowing(新的EventHandler()){
公共无效句柄(WindowEvent e){
系统输出打印(“显示”);
}
});
setOnShown(新的EventHandler()){
公共无效句柄(WindowEvent e){
系统输出打印项次(“显示”);
}
});
//contextMenu.hide();
通知.setContextMenu(contextMenu);
GridPane grid=新建GridPane();
网格设置间隙(4);
网格。setHgap(10);
网格设置填充(新的插图(5,5,5,5));
添加(新标签(“到”)、0、0;
添加(通知,1,0);
组根=(组)scene.getRoot();
root.getChildren().add(网格);
舞台场景;
stage.show();
notification.addEventHandler(MouseEvent.MOUSE_单击,(MouseEvent me)->{
if(me.getButton()==MouseButton.PRIMARY){
System.out.println(“鼠标左键按下”);
System.out.println(notification.getScaleX());
System.out.println(notification.getScaleY());
System.out.println(me.getScreenX());
System.out.println(me.getScreenY());
show(通知,me.getScreenX(),me.getScreenY());
}否则{
contextMenu.hide();
}
});
}
}似乎非常错误,限制了对VBox的扩展,所以我修改了这个示例以扩展窗格。这使得在任何布局下都可以将该类作为自定义菜单移动。我认为它可以正常工作,我正在尝试它。但当我们调整场景大小时,会出现某些问题。如果你有一个修复窗格,我认为它工作得很好。@NaderNader如果你只是想减少文件,那么你可以使用
块
private void showContextMenu() // showContextMenu(MouseEvent event)
{
Popup popup = new Popup();
VBox content = new VBox();
Button b = new Button("Click Me!");
b.setOnAction(new EventHandler<ActionEvent>() { });
content.getChildren().addAll(b);
popup.getContent().add(content);
popup.setX(0); // or get mouse event x and y
popup.setY(0); // event.getY()
popup.setAutoHide(true);
popup.show(your popup owner);
}
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) {
Scene scene = new Scene(new Group(), 450, 250);
Button notification = new Button();
MenuItem item1 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item2 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
MenuItem item3 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item4 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
MenuItem item5 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item6 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
MenuItem item7 = new MenuItem("About");
item1.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("About");
}
});
MenuItem item8 = new MenuItem("Preferences");
item2.setOnAction(new EventHandler<ActionEvent>() {
public void handle(ActionEvent e) {
System.out.println("Preferences");
}
});
final ContextMenu contextMenu = new ContextMenu(item1, item2,item3, item4,item5, item6,item7, item8);
contextMenu.setMaxSize(50, 50);
contextMenu.setOnShowing(new EventHandler<WindowEvent>() {
public void handle(WindowEvent e) {
System.out.println("showing");
}
});
contextMenu.setOnShown(new EventHandler<WindowEvent>() {
public void handle(WindowEvent e) {
System.out.println("shown");
}
});
// contextMenu.hide();
notification.setContextMenu(contextMenu);
GridPane grid = new GridPane();
grid.setVgap(4);
grid.setHgap(10);
grid.setPadding(new Insets(5, 5, 5, 5));
grid.add(new Label("To: "), 0, 0);
grid.add(notification, 1, 0);
Group root = (Group) scene.getRoot();
root.getChildren().add(grid);
stage.setScene(scene);
stage.show();
notification.addEventHandler(MouseEvent.MOUSE_CLICKED, (MouseEvent me)->{
if(me.getButton()==MouseButton.PRIMARY ){
System.out.println("Mouse Left Pressed");
System.out.println(notification.getScaleX());
System.out.println(notification.getScaleY());
System.out.println(me.getScreenX());
System.out.println(me.getScreenY());
contextMenu.show(notification,me.getScreenX(),me.getScreenY());
}else{
contextMenu.hide();
}
});
}