TWaver With JavaFX

JavaFX Script被抛弃以后，很久不关心JavaFX了，偶然发现JavaFX已经发展到2.2，而且已经绑定到JDK7中，看来Oracle对它还是蛮重视的。

看到有人在论坛提问TWaver有没有JavaFX版本，于是去Oracle网站上逛了一下，发现可以将JavaFX集成进Swing程序中，真是福音啊，立马动手写了个Demo，集成起来还是很方便的。

运行效果

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代码分析

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窗体中间是个很典型的Network，上下各是一个JavaFX容器，上面容器中包含一个Slider，滑动时可以改变TWaver选中Node的RenderColor，下面的容器中包含一些Text，选中Network中的Node并拖动的时候在Text组件上显示Node的name和location。

在这个Demo里，程序架构还是Swing，JavaFX提供了一个名为JFXPanel的组件可以嵌入到Swing容器中，JFXPanel内可以放JavaFX的组件，需要注意，Swing和JavaFX的线程不同，官方的原文是："JavaFX data should be accessed only on the JavaFX User thread","Swing data should be changed only on the EDT"，所以如果要在Swing中修改JavaFX的数据，应该使用Platform#runLater包装，本例中，拖动Node时修改JavaFX的Text组件的相关代码：

network.getDataBox().addElementPropertyChangeListener(new PropertyChangeListener() {
            @Override
            public void propertyChange(PropertyChangeEvent evt) {
                if("location".equals(evt.getPropertyName())){
                    Element element= (Element) evt.getSource();
                    final String name=element.getName();
                    final double x=element.getX();
                    final double y=element.getY();
                    Platform.runLater(new Runnable() {
                        @Override
                        public void run() {
                            nameText.setText(name);
                            locationText.setText("X:"+x+"   Y:"+y);
                        }
                    });
                }
            }
        });

同样，如果要在JavaFX中修改Swing数据，也要用SwingUtilities#invokeLater包装，本例中，滑动Slider修改选中Node的Render Color代码如下：

slider.valueProperty().addListener(new ChangeListener<Number>() {
            public void changed(ObservableValue<? extends Number> ov,
                                Number old_val,final Number new_val) {
                SwingUtilities.invokeLater(new Runnable() {
                    @Override
                    public void run() {
                        Iterator it=network.getSelectionModel().selection();
                        while (it.hasNext()){
                            Element element= (Element) it.next();
                            element.putRenderColor(new java.awt.Color(new_val.intValue()));
                        }
                    }
                });
            }
        });

最后附上全部代码：

public class Test1 {
    static TNetwork network;
    static Text nameText;
    static Text locationText;
    static  Slider slider;
    private static void initAndShowGUI() {
        initNetwork();
        JFrame frame = new JFrame("TWaver With JavaFX");
        frame.getContentPane().setLayout(new BorderLayout());

        frame.setSize(500, 300);
        frame.setVisible(true);
        frame.getContentPane().add(network);

        final JFXPanel controlFXPanel = new JFXPanel();
        frame.add(controlFXPanel,BorderLayout.NORTH);

        final JFXPanel statusFXPanel = new JFXPanel();
        frame.add(statusFXPanel,BorderLayout.SOUTH);

        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        network.getDataBox().addElementPropertyChangeListener(new PropertyChangeListener() {
            @Override
            public void propertyChange(PropertyChangeEvent evt) {
                if("location".equals(evt.getPropertyName())){
                    Element element= (Element) evt.getSource();
                    final String name=element.getName();
                    final double x=element.getX();
                    final double y=element.getY();
                    Platform.runLater(new Runnable() {
                        @Override
                        public void run() {
                            nameText.setText(name);
                            locationText.setText("X:"+x+"   Y:"+y);
                        }
                    });
                }
            }
        });
        Platform.runLater(new Runnable() {
            @Override
            public void run() {
                initFX(statusFXPanel,controlFXPanel);
            }
        });
    }
    private static void initNetwork(){
        network=new TNetwork();
        twaver.Node node1=new Node();
        node1.setName("node1");
        twaver.Node node2=new Node();
        node2.setLocation(200,100);
        node2.setName("node2");
        Link link=new Link(node1,node2);
        network.getDataBox().addElement(node1);
        network.getDataBox().addElement(node2);
        network.getDataBox().addElement(link);

    }
    private static void initFX(JFXPanel statusFXPanel,JFXPanel controlFXPanel) {
        Scene scene = createStatusScene();
        statusFXPanel.setScene(scene);
        statusFXPanel.validate();

        Scene controlScene=createControlScene();
        controlFXPanel.setScene(controlScene);
        controlFXPanel.validate();

    }
    private static Scene createControlScene(){
        Group  root  =  new  Group();
        Scene  scene  =  new  Scene(root, Color.ALICEBLUE);
        HBox hbox=new HBox();
        slider =new Slider(0,16777215,0);
        slider.setPrefHeight(30);
        slider.setPrefWidth(300);
        slider.valueProperty().addListener(new ChangeListener<Number>() {
            public void changed(ObservableValue<? extends Number> ov,
                                Number old_val, final Number new_val) {
                SwingUtilities.invokeLater(new Runnable() {
                    @Override
                    public void run() {
                        Iterator it = network.getSelectionModel().selection();
                        while (it.hasNext()) {
                            Element element = (Element) it.next();
                            element.putRenderColor(new java.awt.Color(new_val.intValue()));
                        }
                    }
                });
            }
        });
        Label label=new Label("颜色：");
        label.setPrefHeight(30);
        hbox.getChildren().add(label);
        hbox.getChildren().add(slider);
        root.getChildren().add(hbox);
        return scene;
    }
    private static Scene createStatusScene() {
        Group  root  =  new  Group();
        Scene  scene  =  new  Scene(root, Color.ALICEBLUE);
        VBox vbox=new VBox();
        vbox.setPrefWidth(300);
        vbox.setPrefHeight(20);
        HBox hbox=new HBox();
        nameText=new Text();
        hbox.getChildren().add(new Label("  Name:"));
        hbox.getChildren().add(nameText);
        hbox.getChildren().add(new Text("   "));
        locationText=new Text();
        hbox.getChildren().add(new Label("Location:"));
        hbox.getChildren().add(locationText);
        vbox.getChildren().add(hbox);
        root.getChildren().add(vbox);
        return (scene);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                initAndShowGUI();
            }
        });
    }
}