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如何使用JAVA处理跨多个窗口（不同的jframes）的事件？

2015-09-27 16 views
2

我正在创建一个包含workarea（一个jframe）和一个工具箱（另一个jframe）的ide。我如何完成处理这两个jframes中的事件？例如，如果我点击工具箱中的工具，则必须在工作区中执行一个操作。如何使用JAVA处理跨多个窗口（不同的jframes）的事件？

请帮我

CODE FOR工具箱：

import java.awt.EventQueue; 
import javax.swing.JFrame; 
import javax.swing.JPanel; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 
import javax.swing.border.EmptyBorder; 
import javax.swing.JButton; 
import javax.swing.ImageIcon; 
import java.awt.Color; 
import java.awt.event.ActionListener; 
import java.awt.event.ActionEvent; 


public class ToolboxForPDP extends JFrame { 

/** 
* 
*/ 
private static final long serialVersionUID = 1L; 
private JPanel contentPane; 

/** 
* Launch the application. 
*/ 
public static void main(String[] args) { 
    EventQueue.invokeLater(new Runnable() { 
     public void run() { 
      try { 
       ToolboxForPDP frame = new ToolboxForPDP(); 
       frame.setVisible(true); 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
     } 
    }); 
} 

/** 
* Create the frame. 
*/ 
public ToolboxForPDP() { 
    setResizable(false); 
    try { 
     UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
    } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException e) { 
     e.printStackTrace(); 
    } 

    setTitle("Toolbox"); 
    setType(Type.UTILITY); 
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    setBounds(100, 100, 157, 445); 
    contentPane = new JPanel(); 
    contentPane.setBackground(new Color(245, 245, 220)); 
    contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); 
    setContentPane(contentPane); 
    contentPane.setLayout(null); 

    JButton btnNewButton = new JButton(""); 
    btnNewButton.setToolTipText("Select an element in the work area"); 
    btnNewButton.setBackground(new Color(255, 255, 255)); 
    btnNewButton.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\select.jpg")); 
    btnNewButton.setBounds(10, 11, 55, 45); 
    contentPane.add(btnNewButton); 

    JButton btnNewButton_1 = new JButton(""); 
    btnNewButton_1.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent arg0) { 
     } 
    }); 
    btnNewButton_1.setToolTipText("Insert Image"); 
    btnNewButton_1.setBackground(new Color(255, 255, 255)); 
    btnNewButton_1.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\image.png")); 
    btnNewButton_1.setBounds(75, 11, 55, 45); 
    contentPane.add(btnNewButton_1); 

    JButton btnNewButton_2 = new JButton(""); 
    btnNewButton_2.setToolTipText("Insert Text"); 
    btnNewButton_2.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\text.jpg")); 
    btnNewButton_2.setBackground(new Color(255, 255, 255)); 
    btnNewButton_2.setBounds(10, 67, 55, 45); 
    contentPane.add(btnNewButton_2); 

    JButton btnNewButton_3 = new JButton(""); 
    btnNewButton_3.setToolTipText("Insert Hyperlink"); 
    btnNewButton_3.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\hyperlink.png")); 
    btnNewButton_3.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent arg0) { 
     } 
    }); 
    btnNewButton_3.setBackground(new Color(255, 255, 255)); 
    btnNewButton_3.setBounds(75, 67, 55, 45); 
    contentPane.add(btnNewButton_3); 

    JButton btnNewButton_4 = new JButton(""); 
    btnNewButton_4.setToolTipText("Change Page Background Properties"); 
    btnNewButton_4.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\fill color.png")); 
    btnNewButton_4.setBackground(new Color(255, 255, 255)); 
    btnNewButton_4.setBounds(10, 123, 55, 45); 
    contentPane.add(btnNewButton_4); 

    JButton btnNewButton_5 = new JButton(""); 
    btnNewButton_5.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\textbox.jpg")); 
    btnNewButton_5.setToolTipText("Insert Textbox"); 
    btnNewButton_5.setBackground(new Color(255, 255, 255)); 
    btnNewButton_5.setBounds(10, 179, 55, 45); 
    contentPane.add(btnNewButton_5); 

    JButton btnNewButton_6 = new JButton(""); 
    btnNewButton_6.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\radio Button.gif")); 
    btnNewButton_6.setToolTipText("Insert Radio Button"); 
    btnNewButton_6.setBackground(new Color(255, 255, 255)); 
    btnNewButton_6.setBounds(10, 235, 55, 45); 
    contentPane.add(btnNewButton_6); 

    JButton btnNewButton_7 = new JButton(""); 
    btnNewButton_7.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\checkbox.gif")); 
    btnNewButton_7.setToolTipText("Insert Checkbox"); 
    btnNewButton_7.setBackground(new Color(255, 255, 255)); 
    btnNewButton_7.setBounds(10, 291, 55, 45); 
    contentPane.add(btnNewButton_7); 

    JButton btnNewButton_8 = new JButton(""); 
    btnNewButton_8.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent e) { 
     } 
    }); 
    btnNewButton_8.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\hr.jpg")); 
    btnNewButton_8.setToolTipText("Insert Horizontal Rule"); 
    btnNewButton_8.setBackground(new Color(255, 255, 255)); 
    btnNewButton_8.setBounds(75, 123, 55, 45); 
    contentPane.add(btnNewButton_8); 

    JButton btnNewButton_9 = new JButton(""); 
    btnNewButton_9.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\button.jpg")); 
    btnNewButton_9.setToolTipText("Insert Button"); 
    btnNewButton_9.setBackground(new Color(255, 255, 255)); 
    btnNewButton_9.setBounds(75, 179, 55, 45); 
    contentPane.add(btnNewButton_9); 

    JButton btnNewButton_10 = new JButton(""); 
    btnNewButton_10.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\drop-down list.png")); 
    btnNewButton_10.setToolTipText("Insert Drop-Down List"); 
    btnNewButton_10.setBackground(new Color(255, 255, 255)); 
    btnNewButton_10.setBounds(75, 235, 55, 45); 
    contentPane.add(btnNewButton_10); 

    JButton btnNewButton_11 = new JButton(""); 
    btnNewButton_11.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\list.jpg")); 
    btnNewButton_11.setToolTipText("Insert List"); 
    btnNewButton_11.setBackground(new Color(255, 255, 255)); 
    btnNewButton_11.setBounds(75, 291, 55, 45); 
    contentPane.add(btnNewButton_11); 

    JButton btnNewButton_12 = new JButton(""); 
    btnNewButton_12.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent e) { 
     } 
    }); 
    btnNewButton_12.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\toolbox icons\\icoScript.png")); 
    btnNewButton_12.setToolTipText("Add Script"); 
    btnNewButton_12.setBackground(new Color(255, 255, 255)); 
    btnNewButton_12.setBounds(42, 347, 55, 45); 
    contentPane.add(btnNewButton_12); 
} 
}

CODE FOR WORKAREA：

import java.awt.EventQueue; 
import javax.swing.JFrame; 
import javax.swing.JPanel; 
import javax.swing.UIManager; 
import javax.swing.UnsupportedLookAndFeelException; 
import javax.swing.border.EmptyBorder; 
import javax.swing.ButtonGroup; 
import javax.swing.JMenuBar; 
import javax.swing.JMenu; 
import javax.swing.JMenuItem; 
import javax.swing.JRadioButtonMenuItem; 
import javax.swing.JCheckBoxMenuItem; 
import javax.swing.ImageIcon; 
import java.awt.Toolkit; 


public class StartScreen extends JFrame { 

/** 
* 
*/ 
private static final long serialVersionUID = 1L; 
private JPanel contentPane; 

/** 
* Launch the application. 
*/ 
public static void main(String[] args) { 
    EventQueue.invokeLater(new Runnable() { 
     public void run() { 
      try { 
       StartScreen frame = new StartScreen(); 
       frame.setVisible(true); 
      } catch (Exception e) { 
       e.printStackTrace(); 
      } 
     } 
    }); 
} 

/** 
* Create the frame. 
*/ 
public StartScreen() { 
    try { 
     UIManager.setLookAndFeel("javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
    } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException e) { 
     e.printStackTrace(); 
    } 

    setIconImage(Toolkit.getDefaultToolkit().getImage("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\logos\\swami_vivekananda2.png")); 
    setTitle("PageDesigner PRO(TM)"); 
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
    setBounds(10, 10, 1350, 700); 

    JMenuBar menuBar = new JMenuBar(); 
    setJMenuBar(menuBar); 

    JMenu mnFile = new JMenu("File"); 
    menuBar.add(mnFile); 

    JMenu mnNew = new JMenu("New"); 
    mnNew.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\menu icons\\Folder-New-icon.png")); 
    mnFile.add(mnNew); 

    JMenuItem mntmNewProject = new JMenuItem("New Project"); 
    mnNew.add(mntmNewProject); 

    JMenuItem mntmNewPage = new JMenuItem("New Page"); 
    mnNew.add(mntmNewPage); 
    mnFile.addSeparator(); 

    JMenuItem mntmSave = new JMenuItem("Save"); 
    mntmSave.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\menu icons\\save.png")); 
    mnFile.add(mntmSave); 

    JMenuItem mntmSaveAs = new JMenuItem("Save As..."); 
    mnFile.add(mntmSaveAs); 
    mnFile.addSeparator(); 

    JMenuItem mntmAddToProject = new JMenuItem("Add to project"); 
    mnFile.add(mntmAddToProject); 

    JMenuItem mntmTestThisPage = new JMenuItem("Test this page"); 
    mnFile.add(mntmTestThisPage); 
    mnFile.addSeparator(); 

    JCheckBoxMenuItem chckbxmntmShowWelcomeScreen = new JCheckBoxMenuItem("Show Welcome screen at startup"); 
    mnFile.add(chckbxmntmShowWelcomeScreen); 
    mnFile.addSeparator(); 

    JMenuItem mntmExit = new JMenuItem("Exit"); 
    mntmExit.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\menu icons\\exit.png")); 
    mnFile.add(mntmExit); 

    JMenu mnEdit = new JMenu("Edit"); 
    menuBar.add(mnEdit); 

    JMenuItem mntmModifyElementProperties = new JMenuItem("Modify Element Properties"); 
    mnEdit.add(mntmModifyElementProperties); 

    JMenu mnMode = new JMenu("Mode"); 
    menuBar.add(mnMode); 

    JRadioButtonMenuItem rdbtnmntmBeginnerMode = new JRadioButtonMenuItem("Beginner Mode"); 
    mnMode.add(rdbtnmntmBeginnerMode); 

    JRadioButtonMenuItem rdbtnmntmAdvancedMode = new JRadioButtonMenuItem("Advanced Mode"); 
    mnMode.add(rdbtnmntmAdvancedMode); 

    ButtonGroup modeMenuGroup = new ButtonGroup(); 
    modeMenuGroup.add(rdbtnmntmBeginnerMode); 
    modeMenuGroup.add(rdbtnmntmAdvancedMode); 

    JMenu mnHelp = new JMenu("Help"); 
    menuBar.add(mnHelp); 

    JMenuItem mntmUserGuide = new JMenuItem("User Guide"); 
    mntmUserGuide.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\menu icons\\manual icon.gif")); 
    mnHelp.add(mntmUserGuide); 

    JMenuItem mntmAbout = new JMenuItem("About..."); 
    mntmAbout.setIcon(new ImageIcon("D:\\KS\\4-1\\Mini-Project\\PageDesigner PRO(TM)\\PageDesigner PRO(TM)\\resources\\pics\\icons\\menu icons\\info_black.png")); 
    mnHelp.add(mntmAbout); 
    contentPane = new JPanel(); 
    contentPane.setBorder(new EmptyBorder(5, 5, 5, 5)); 
    setContentPane(contentPane); 
    contentPane.setLayout(null); 
} 
}

来源

2015-09-27 Konakanchi Saketh

+1

你到目前为止尝试了什么？发布它 –

+0

我已经使用windowBuilder插件的eclipse分别创建了两个jframes。我准备好了工作区和工具箱。现在，我如何链接它们？ –

+0

工具箱应该是一个对话窗口，如JDialog和**不是** JFrame，但无论如何，我与@YassinHajaj - 你到底做了什么？在不了解程序结构和代码的情况下很难提出建议。希望你使用某种类型的模型 - 视图 - 控制器程序结构，如果是这样，这应该使对象之间的信息传递变得容易。 –

回答

3

你的问题是如何从一个JFrame的信息传递到另一个，这样就可以只要有一个类调用另一个类的方法即可完成。你还没有这样做，而且你只发布了一个框架程序，其中一个带有组件，但没有任何逻辑，这意味着你仍然是一个初学Java程序员，所以我的主要建议是，首先和最重要的您努力学习编码，特别是了解面向对象的原理以及它们与Java的关系。如果没有这些基础，我们可以给你代码和指针，但它对你没有多大帮助。我建议你去Java Tutorials并从那里开始，但是你也可以在这个主题上得到一本好书，比如Bruce Eckel's Thinking in Java，和/或Head First Java。

至于你的实际代码，我建议你不要创建扩展JFrame的类，因为这会将你锁定到一个JFrame中，并且根据我上面的评论，你的工具窗口应该是非模态的JDialog而不是JFrame。如果您将代码转换为创建JPanel，那么您可以将它们放入JFrames，JDialogs和其他JPanel等等中，这样可以为您提供更多的灵活性。

您的程序情况的主要难点在于不会将信息从一个窗口传递到另一个窗口，而是将一个对象传递给另一个对象，而是时这样做，因为该程序是事件驱动的。我自己，我喜欢使用PropertyChangeListeners，基本上使用已经是Swing GUI结构一部分的观察者接口。例如，在下面的代码中，我创建了两个主JPanel，一个显示在JFrame中，另一个显示在非模态JDialog中，并且将按钮按下信息（按钮的actionCommand字符串）传递给主GUI中的JTextArea一个PropertyChangeListener：

import java.awt.BorderLayout; 
import java.awt.Dialog.ModalityType; 
import java.awt.GridLayout; 
import java.awt.event.ActionEvent; 
import java.beans.PropertyChangeEvent; 
import java.beans.PropertyChangeListener; 

import javax.swing.*; 

public class Foo3 { 
    private static void createAndShowGui() { 
     final MainPanel1 mainPanel1 = new MainPanel1(); 
     final ToolPanel1 toolPanel1 = new ToolPanel1(); 

     JFrame frame = new JFrame("Foo3"); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.getContentPane().add(mainPanel1); 
     frame.pack(); 
     frame.setLocationRelativeTo(null); 
     frame.setVisible(true); 

     JDialog dialog = new JDialog(frame, "Toolbar", ModalityType.MODELESS); 
     dialog.add(toolPanel1); 
     dialog.pack(); 
     dialog.setLocationByPlatform(true); 
     dialog.setVisible(true); 

     toolPanel1.addPropertyChangeListener(ToolPanel1.ACTION_COMMAND, new PropertyChangeListener() { 

      @Override 
      public void propertyChange(PropertyChangeEvent evt) { 
       mainPanel1.appendActionCommand((String) evt.getNewValue()); 
      } 
     }); 
    } 

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

class MainPanel1 extends JPanel { 
    private JTextArea actionCommandArea = new JTextArea(30, 50); 
    private JScrollPane scrollPane = new JScrollPane(actionCommandArea); 

    public MainPanel1() { 
     scrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS); 

     setLayout(new BorderLayout()); 
     add(scrollPane, BorderLayout.CENTER); 
    } 

    public void appendActionCommand(String text) { 
     actionCommandArea.append(text + "\n"); 
    } 
} 

class ToolPanel1 extends JPanel { 
    public static final String ACTION_COMMAND = "action command"; 
    public static final String[] BTN_TEXTS = { 
     "Select Element", 
     "Insert Image", 
     "Insert Text", 
     "Insert Hyperlink", 
     "Change Page Background", 
     "Insert Textbox", 
     "Insert Radio Button", 
     "Insert Checkbox", 
     "Insert Horizontal Rule", 
     "Insert Button", 
     "Insert Drop-Down List", 
     "Insert List", 
     "Add Script" 
    }; 
    private String actionCommand = ""; 

    public ToolPanel1() { 
     int rows = 0; // variable number of rows 
     int cols = 2; // 2 columns 
     int hgap = 5; 
     int vgap = hgap; 
     setLayout(new GridLayout(rows, cols, hgap, vgap)); 
     setBorder(BorderFactory.createEmptyBorder(hgap, hgap, hgap, hgap)); 

     for (String btnText : BTN_TEXTS) { 
      add(new JButton(new ButtonAction(btnText))); 
     } 
    } 

    public String getActionCommand() { 
     return actionCommand; 
    } 

    private class ButtonAction extends AbstractAction { 
     public ButtonAction(String name) { 
      super(name); 
     } 

     @Override 
     public void actionPerformed(ActionEvent e) { 
      String oldValue = ""; 
      String newValue = e.getActionCommand(); 
      actionCommand = newValue; 
      ToolPanel1.this.firePropertyChange(ACTION_COMMAND, oldValue, newValue); 
     } 
    } 
}

更可靠的设计是使用模型 - 视图 - 控制器式设计，但是这是更先进一点，你需要让你的腰带以前更多的代码经验我想这是使用这个。也检查出these links to similar questions/answers。

来源

2015-09-27 14:53:52

+0

非常感谢！ @Hovercraft全是鳗鱼。我会研究你的建议...... :-) –

+0

而且......你的代码真的很有帮助！ –

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