Java从Swing拖放到JavaFX
我正在尝试将自定义对象从JPanel拖放到JavaFX场景。Java从Swing拖放到JavaFX,java,swing,javafx,drag-and-drop,Java,Swing,Javafx,Drag And Drop,我正在尝试将自定义对象从JPanel拖放到JavaFX场景。 为了实现这一点,我创建了一个带有自定义对象和自定义TransferHandler的简单应用程序。在本例中,我的问题是,当我在dragboard=event.getDragboard()设置断点时,JavaFX dragboard只有内容。在断点处停止后,我可以删除断点,并且DnD每次都在工作 有人能帮我在没有断点的情况下工作吗 先谢谢你 这是我的密码: 肌体 肌对象 swingndtofx 导入javafx.application.P
为了实现这一点,我创建了一个带有自定义对象和自定义TransferHandler的简单应用程序。在本例中,我的问题是,当我在
dragboard=event.getDragboard()设置断点时,JavaFX dragboard只有内容在onDragOver()
或ondragdroped()
方法中的code>。在断点处停止后,我可以删除断点,并且DnD每次都在工作
有人能帮我在没有断点的情况下工作吗
先谢谢你
这是我的密码:
肌体
肌对象
swingndtofx
导入javafx.application.Platform;
导入javafx.embed.swing.JFXPanel;
导入javafx.scene.scene;
导入javafx.scene.control.Label;
导入javafx.scene.input.DataFormat;
导入javafx.scene.input.Dragboard;
导入javafx.scene.input.TransferMode;
导入javafx.scene.layout.GridPane;
导入javax.swing.*;
导入java.awt.*;
导入java.awt.datatransfer.DataFlavor;
导入java.awt.datatransfer.transfer;
导入java.awt.dnd.DnDConstants;
导入java.awt.dnd.DragGestureListener;
导入java.awt.dnd.DragSource;
导入java.awt.dnd.DropTarget;
导入java.awt.dnd.DropTargetAdapter;
导入java.awt.dnd.DropTargetDropEvent;
导入java.awt.dnd.DropTargetListener;
导入java.awt.event.MouseAdapter;
导入java.awt.event.MouseEvent;
导入java.text.simpleDataFormat;
导入java.util.Date;
公共类swingndtofx
{
专用JLabel状态标签;
公共静态void main(字符串[]args)
{
新的swingndtofx().init();
}
私有void init()
{
最终JFrame=新JFrame();
框架设置尺寸(1000500);
frame.setContentPane(createPanel());
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setVisible(true);
}
私有JPanel createPanel()
{
最终JPanel小组;
最终JPanel太空小组;
最终尺寸;
panel=newjpanel(newborderlayout());
spacePanel=newjpanel(newborderlayout());
尺寸=新尺寸(300500);
statusLabel=新的JLabel();
spacePanel.setBackground(颜色:红色);
spacePanel.add(statusLabel、BorderLayout.CENTER);
添加(createDragPanel(维度),BorderLayout.WEST);
panel.add(spacePanel,BorderLayout.CENTER);
panel.add(createDropPanel(维度),BorderLayout.EAST);
返回面板;
}
专用JPanel createDragPanel(最终尺寸)
{
最终JPanel dragPanel;
最终JLabel-dragLabel;
最终Draggesturelelistener dgl;
最终DragSource DragSource;
dragPanel=newjpanel(newgridlayout());
dragLabel=新JLabel(“拖动我”);
dragSource=新的dragSource();
dgl=dge->
{
final MyObject obj=新的MyObject(dragLabel.getText());
最终MYOBJECTTRANSABLE=新MYOBJECTTRANSABLE(obj);
dge.startDrag(无效,可转让);
};
dragSource.CreateDefaultDraggestureRecogener(dragLabel,DnDConstants.ACTION_COPY,dgl);
setTransferHandler(新的TransferHandler(“dragLabel”));
dragLabel.addMouseListener(新的MouseAdapter()
{
@凌驾
公共无效鼠标按下(MouseEvent e)
{
最终JComponent c=(JComponent)e.getSource();
最终TransferHandler th=c.getTransferHandler();
exportAsDrag(c,e,TransferHandler.COPY);
}
});
拖板。背景(颜色。青色);
dragPanel.setPreferredSize(尺寸);
dragPanel.add(dragLabel);
返回拖板;
}
专用JPanel createDropPanel(最终尺寸)
{
最终JPanel dropPanel;
最终JLabel-dropLabel;
最终DropTargetListener dtl;
dropPanel=新的JPanel(新的GridLayout(0,1));
dropLabel=新的JLabel(“放在这里(摆动)”;
dtl=新的DropTargetAdapter()
{
@凌驾
公共作废删除(DropTargetDropEvent dtde)
{
最终可转让;
最终数据风味[]数据风味;
尝试
{
transferable=dtde.getTransferable();
dataFlavors=transferable.getTransferDataFlavors();
for(int i=0;i
{
最后一幕;
最终网格窗格;
最终标签;
最终标签名称;
窗玻璃
public class MyObject
{
private final String text;
public MyObject(String text)
{
this.text = text;
}
public String getText()
{
return text;
}
}
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
public class MyObjectTransferable implements Transferable
{
public static final DataFlavor DATAFLAVOR_MYOBJECT = new DataFlavor(MyObject.class, "myObject");
private final MyObject obj;
public MyObjectTransferable(MyObject obj)
{
this.obj = obj;
}
@Override
public DataFlavor[] getTransferDataFlavors()
{
return new DataFlavor[] {DATAFLAVOR_MYOBJECT};
}
@Override
public boolean isDataFlavorSupported(DataFlavor flavor)
{
return DATAFLAVOR_MYOBJECT.equals(flavor);
}
@Override
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException
{
return DATAFLAVOR_MYOBJECT.equals(flavor) ? obj : null;
}
}
import javafx.application.Platform;
import javafx.embed.swing.JFXPanel;
import javafx.scene.Scene;
import javafx.scene.control.Label;
import javafx.scene.input.DataFormat;
import javafx.scene.input.Dragboard;
import javafx.scene.input.TransferMode;
import javafx.scene.layout.GridPane;
import javax.swing.*;
import java.awt.*;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragSource;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetAdapter;
import java.awt.dnd.DropTargetDropEvent;
import java.awt.dnd.DropTargetListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.text.SimpleDateFormat;
import java.util.Date;
public class SwingDnDtoFX
{
private JLabel statusLabel;
public static void main(String[] args)
{
new SwingDnDtoFX().init();
}
private void init()
{
final JFrame frame = new JFrame();
frame.setSize(1000, 500);
frame.setContentPane(createPanel());
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.setVisible(true);
}
private JPanel createPanel()
{
final JPanel panel;
final JPanel spacePanel;
final Dimension dimension;
panel = new JPanel(new BorderLayout());
spacePanel = new JPanel(new BorderLayout());
dimension = new Dimension(300, 500);
statusLabel = new JLabel();
spacePanel.setBackground(Color.RED);
spacePanel.add(statusLabel, BorderLayout.CENTER);
panel.add(createDragPanel(dimension), BorderLayout.WEST);
panel.add(spacePanel, BorderLayout.CENTER);
panel.add(createDropPanel(dimension), BorderLayout.EAST);
return panel;
}
private JPanel createDragPanel(final Dimension dimension)
{
final JPanel dragPanel;
final JLabel dragLabel;
final DragGestureListener dgl;
final DragSource dragSource;
dragPanel = new JPanel(new GridLayout());
dragLabel = new JLabel("Drag me");
dragSource = new DragSource();
dgl = dge ->
{
final MyObject obj = new MyObject(dragLabel.getText());
final MyObjectTransferable transferable = new MyObjectTransferable(obj);
dge.startDrag(null, transferable);
};
dragSource.createDefaultDragGestureRecognizer(dragLabel, DnDConstants.ACTION_COPY, dgl);
dragLabel.setTransferHandler(new TransferHandler("dragLabel"));
dragLabel.addMouseListener(new MouseAdapter()
{
@Override
public void mousePressed(MouseEvent e)
{
final JComponent c = (JComponent) e.getSource();
final TransferHandler th = c.getTransferHandler();
th.exportAsDrag(c, e, TransferHandler.COPY);
}
});
dragPanel.setBackground(Color.CYAN);
dragPanel.setPreferredSize(dimension);
dragPanel.add(dragLabel);
return dragPanel;
}
private JPanel createDropPanel(final Dimension dimension)
{
final JPanel dropPanel;
final JLabel dropLabel;
final DropTargetListener dtl;
dropPanel = new JPanel(new GridLayout(0, 1));
dropLabel = new JLabel("Drop here (Swing)");
dtl = new DropTargetAdapter()
{
@Override
public void drop(DropTargetDropEvent dtde)
{
final Transferable transferable;
final DataFlavor[] dataFlavors;
try
{
transferable = dtde.getTransferable();
dataFlavors = transferable.getTransferDataFlavors();
for (int i = 0; i < dataFlavors.length; i++)
{
if (MyObjectTransferable.DATAFLAVOR_MYOBJECT.equals(dataFlavors[i]))
{
final MyObject data;
dtde.acceptDrop(dtde.getDropAction());
data = (MyObject) transferable.getTransferData(dataFlavors[i]);
showStatus(data, "Swing");
dtde.dropComplete(true);
}
}
}
catch (Exception e)
{
e.printStackTrace();
dtde.rejectDrop();
}
}
};
new DropTarget(dropLabel, dtl);
dropLabel.setOpaque(true);
dropLabel.setBackground(Color.CYAN);
dropPanel.setPreferredSize(dimension);
dropPanel.add(dropLabel);
dropPanel.add(createFX());
return dropPanel;
}
private JFXPanel createFX()
{
final JFXPanel fxPanel;
fxPanel = new JFXPanel();
Platform.runLater(() ->
{
final Scene scene;
final GridPane pane;
final Label label;
final Label title;
pane = new GridPane();
scene = new Scene(pane);
label = new Label();
title = new Label("Drop here (JavaFX)");
pane.add(title, 0, 0);
pane.add(label, 0, 1);
pane.setOnDragOver(event ->
{
final Dragboard dragboard;
final DataFormat dataFormat;
dragboard = event.getDragboard();
dataFormat = DataFormat.lookupMimeType("application/x-java-serialized-object");
if (dragboard.hasContent(dataFormat))
event.acceptTransferModes(TransferMode.COPY);
event.consume();
});
pane.setOnDragDropped(event ->
{
final Dragboard dragboard;
final DataFormat dataFormat;
boolean success = false;
dragboard = event.getDragboard();
dataFormat = DataFormat.lookupMimeType("application/x-java-serialized-object");
if (dragboard.hasContent(dataFormat))
{
final Object content;
final MyObject data;
content = dragboard.getContent(dataFormat);
if (content instanceof MyObject)
{
data = (MyObject) content;
label.setText(data.getText());
SwingUtilities.invokeLater(() -> showStatus(data, "JavaFX"));
success = true;
}
}
event.setDropCompleted(success);
event.consume();
});
fxPanel.setScene(scene);
});
return fxPanel;
}
private void showStatus(MyObject data, String framework)
{
final String date = new SimpleDateFormat("HH:mm:ss").format(new Date());
statusLabel.setText(date + " >> " + framework + " >> " + data.getText());
}
}
pane.setOnDragOver(event ->
{
final Dragboard dragboard;
final DataFormat dataFormat;
dragboard = event.getDragboard();
dataFormat = DataFormat.lookupMimeType("application/x-java-serialized-object");
for (DataFormat df : dragboard.getContentTypes())
{
// Do nothing...
}
if (dragboard.hasContent(dataFormat))
event.acceptTransferModes(TransferMode.COPY);
event.consume();
});