Java JToolBar跨越JFrame的一半

我正在创建一个类似于gedit的文本编辑器。在工具栏中，我使用了10个带有图标的按钮。我使用的是带边框布局的JFrame。工具栏位于北面。但问题是按钮变得太大，工具栏几乎覆盖了框架的一半。所有图标的大小均为512x512px。我试着调整图标的大小，但没有成功。如果图像的图标被移除，它将正常工作

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;

class RSP extends WindowAdapter implements ActionListener, CaretListener
{
private JFrame f;
private JMenuBar mb;
private JMenu m1, m2, m3, m4, m5, m6, m7, m16;
private JMenuItem m11, m12, m13, m14, m15, m17, m18, m21, m22, m23, m24, m25, m26, m27, m28, m31, m32, m33, m41, m42, m51, m52, m53, m61, m62, m71, m72, m161, m162, m163;
private JButton b1, b2, b3, b4, b5, b6, b7, b8, b9, b10;
private JToolBar tb;
private JTabbedPane tp;
private JLabel l;
private JTextArea[] ta;
private int caretPos, lineNum, columnNum;

public RSP()
{
    f=new JFrame("RSPEditor");
    mb=new JMenuBar();
    CreateMenuBar();
    tb=new JToolBar();
    tb.setFloatable(false);
    CreateToolbar();
    tp=new JTabbedPane(JTabbedPane.TOP,JTabbedPane.SCROLL_TAB_LAYOUT);
    l=new JLabel("",JLabel.TRAILING);
    ta=new JTextArea[10];
    f.setSize(800,550);
    f.setVisible(true);
    f.setJMenuBar(mb);
    f.add(tb,BorderLayout.NORTH);
    f.add(tp,BorderLayout.CENTER);
    f.add(l,BorderLayout.SOUTH);
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.addWindowListener(this);
}

public void CreateToolbar()
{
    tb.setLayout(new GridLayout(1,10,5,5));
    tb.setSize(f.getWidth(),20);
    b1=new JButton("New",new ImageIcon(getClass().getResource("new.png")));
    b2=new JButton("Open",new ImageIcon(getClass().getResource("open.png")));
    b3=new JButton("Save",new ImageIcon(getClass().getResource("save.png")));
    b4=new JButton("Undo",new ImageIcon(getClass().getResource("undo.png")));
    b5=new JButton("Redo",new ImageIcon(getClass().getResource("redo.png")));
    b6=new JButton("Cut",new ImageIcon(getClass().getResource("cut.png")));
    b7=new JButton("Copy",new ImageIcon(getClass().getResource("copy.png")));
    b8=new JButton("Paste",new ImageIcon(getClass().getResource("paste.png")));
    b9=new JButton("Find",new ImageIcon(getClass().getResource("find.png")));
    b10=new JButton("Replace",new ImageIcon(getClass().getResource("replace.png")));

    b1.addActionListener(this);
    b2.addActionListener(this);
    b3.addActionListener(this);
    b4.addActionListener(this);
    b5.addActionListener(this);
    b6.addActionListener(this);
    b7.addActionListener(this);
    b8.addActionListener(this);
    b9.addActionListener(this);
    b10.addActionListener(this);

    tb.add(b1);
    tb.add(b2);
    tb.add(b3);
    tb.add(b4);
    tb.add(b5);
    tb.add(b6);
    tb.add(b7);
    tb.add(b8);
    tb.add(b9);
    tb.add(b10);
}

public void CreateMenuBar()
{
    m1=new JMenu("File");
    m2=new JMenu("Edit");
    m3=new JMenu("Search");
    m4=new JMenu("Execute");
    m5=new JMenu("Tools");
    m6=new JMenu("Documents");
    m7=new JMenu("Help");

    mb.add(m1);
    mb.add(m2);
    mb.add(m3);
    mb.add(m4);
    mb.add(m5);
    mb.add(m6);
    mb.add(m7);

    m11=new JMenuItem("New");
    m12=new JMenuItem("Open");
    m13=new JMenuItem("Save");
    m14=new JMenuItem("Save As");
    m15=new JMenuItem("Print");
    m16=new JMenu("Recent Files");
    m161=new JMenuItem("A");
    m162=new JMenuItem("B");
    m163=new JMenuItem("C");
    m16.add(m161);
    m16.add(m162);
    m16.add(m163);
    m17=new JMenuItem("Close");
    m18=new JMenuItem("Quit");

    m21=new JMenuItem("Undo");
    m22=new JMenuItem("Redo");
    m23=new JMenuItem("Cut");
    m24=new JMenuItem("Cop[y");
    m25=new JMenuItem("Paste");
    m26=new JMenuItem("Delete");
    m27=new JMenuItem("Select All");
    m28=new JMenuItem("Insert Date and Time");

    m31=new JMenuItem("Find");
    m32=new JMenuItem("Replace");
    m33=new JMenuItem("Goto Line");

    m41=new JMenuItem("Compile");
    m42=new JMenuItem("Run");

    m51=new JMenuItem("Indent");
    m52=new JMenuItem("Spell Check");
    m53=new JMenuItem("Full Screen");

    m61=new JMenuItem("Save All");
    m62=new JMenuItem("Close All");

    m71=new JMenuItem("How To");
    m72=new JMenuItem("About");

    m1.add(m11);
    m1.add(m12);
    m1.addSeparator();
    m1.add(m13);
    m1.add(m14);
    m1.addSeparator();
    m1.add(m15);
    m1.addSeparator();
    m1.add(m16);
    m1.addSeparator();
    m1.add(m17);
    m1.add(m18);

    m2.add(m21);
    m2.add(m22);
    m2.addSeparator();
    m2.add(m23);
    m2.add(m24);
    m2.add(m25);
    m2.add(m26);
    m2.addSeparator();
    m2.add(m27);
    m2.addSeparator();
    m2.add(m28);

    m3.add(m31);
    m3.add(m32);
    m3.addSeparator();
    m3.add(m33);

    m4.add(m41);
    m4.add(m42);

    m5.add(m51);
    m5.add(m52);
    m5.addSeparator();
    m5.add(m53);

    m6.add(m61);
    m6.add(m62);

    m7.add(m71);
    m7.add(m72);

    m11.addActionListener(this);
    m11.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_N, ActionEvent.CTRL_MASK));
    m12.addActionListener(this);
    m12.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, ActionEvent.CTRL_MASK));
    m13.addActionListener(this);
    m13.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK));
    m14.addActionListener(this);
    m14.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, ActionEvent.CTRL_MASK | ActionEvent.SHIFT_MASK));
    m15.addActionListener(this);
    m15.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_P, ActionEvent.CTRL_MASK));
    m161.addActionListener(this);
    m162.addActionListener(this);
    m163.addActionListener(this);
    m17.addActionListener(this);
    m17.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_W, ActionEvent.CTRL_MASK));
    m18.addActionListener(this);
    m18.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_W, ActionEvent.CTRL_MASK));

    m21.addActionListener(this);
    m21.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_Z, ActionEvent.CTRL_MASK));
    m22.addActionListener(this);
    m23.addActionListener(this);
    m23.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, ActionEvent.CTRL_MASK));
    m24.addActionListener(this);
    m24.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_C, ActionEvent.CTRL_MASK));
    m25.addActionListener(this);
    m25.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_V, ActionEvent.CTRL_MASK));
    m26.addActionListener(this);
    m27.addActionListener(this);
    m27.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_A, ActionEvent.CTRL_MASK));
    m28.addActionListener(this);

    m31.addActionListener(this);
    m31.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F, ActionEvent.CTRL_MASK));
    m32.addActionListener(this);
    m32.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_H, ActionEvent.CTRL_MASK));
    m33.addActionListener(this);
    m33.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_I, ActionEvent.CTRL_MASK));

    m41.addActionListener(this);
    m42.addActionListener(this);
    m42.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_F9, ActionEvent.CTRL_MASK));

    m51.addActionListener(this);
    m52.addActionListener(this);
    m53.addActionListener(this);
    m61.addActionListener(this);
    m62.addActionListener(this);
    m71.addActionListener(this);
    m72.addActionListener(this);
}

public void createNewTab()
{
    ta[tp.getTabCount()]=new JTextArea();
    ta[tp.getTabCount()].addCaretListener(this);
    ta[tp.getTabCount()].setFont(new Font("Ariel",Font.PLAIN,20));
    tp.addTab("New File",new JScrollPane(ta[tp.getTabCount()]));
}

public void windowClosing(WindowEvent e)    //prompt for save
{
}


public void actionPerformed(ActionEvent e)
{
    if(e.getSource().equals(b1) || e.getSource().equals(m11))
        createNewTab();
    else if(e.getSource().equals(b2) || e.getSource().equals(m12));
        //fileOpen();
    else if(e.getSource().equals(b3) || e.getSource().equals(m13));
        //save;
    else if(e.getSource().equals(m14));
        //saveas
    else if(e.getSource().equals(m15));
        //print
    else if(e.getSource().equals(m161));
        //recent1
    else if(e.getSource().equals(m162));
        //recent2
    else if(e.getSource().equals(m163));
        //recent3
    else if(e.getSource().equals(m17));
        //close
    else if(e.getSource().equals(m18));
        //quit
    else if(e.getSource().equals(b4) || e.getSource().equals(m21));
        //undo
    else if(e.getSource().equals(b5) || e.getSource().equals(m22));
        //redo
    else if(e.getSource().equals(b6) || e.getSource().equals(m23));
        //cut
    else if(e.getSource().equals(b7) || e.getSource().equals(m24));
        //copy
    else if(e.getSource().equals(b8) || e.getSource().equals(m25));
        //paste
    else if(e.getSource().equals(m16));
        //delete
    else if(e.getSource().equals(m17));
        //select all
    else if(e.getSource().equals(m18));
        //insert d&t
    else if(e.getSource().equals(b9) || e.getSource().equals(m31));
        //find
    else if(e.getSource().equals(b10) || e.getSource().equals(m32));
        //replace
    else if(e.getSource().equals(m33));
        //goto
    else if(e.getSource().equals(m41));
        //compile
    else if(e.getSource().equals(m42));
        //run
    else if(e.getSource().equals(m51));
        //indent
    else if(e.getSource().equals(m52));
        //spell chk
    else if(e.getSource().equals(m53));
        //fullscreen
    else if(e.getSource().equals(m61));
        //saveall
    else if(e.getSource().equals(m62));
        //closeall
    else if(e.getSource().equals(m71));
        //howto
    else if(e.getSource().equals(m72));
        //about
}

public void caretUpdate(CaretEvent e) 
{ 
    JTextArea editArea=(JTextArea)e.getSource();
    lineNum=1;
    columnNum=1;
    try
    {
        caretPos=editArea.getCaretPosition();
        lineNum=editArea.getLineOfOffset(caretPos);
        columnNum=caretPos-editArea.getLineStartOffset(lineNum);
        lineNum++;
        l.setText("L "+lineNum+", C "+columnNum+"     ");;
    }
    catch(Exception ex) { }
}

public static void main(String args[])
{
    new RSP();
}
}

按以下方式缩放图像，应该可以正常工作

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我正在扩展到50X50您可以使用适合您的应用程序的任何适当大小

到目前为止您拥有的功能？我有一个菜单栏，一个标签在南部用作状态栏，而jtabbedpane在中心。tabbedpane的每个选项卡都有jscrollpane，其中包含一个jtextarea。发布您的代码以获得更好的解决方案那么您的屏幕宽度是多少，至少5120px？没有大多数系统，按钮往往是16-32或48px…请发布您的代码，可能是指向显示问题的图像的链接显示错误RSP。java:46:error:不兼容类型：图像无法转换为图标b1=new JButtonNew，new ImageIContClass.getResourcenew.png.getImage.getScaledInstance50，50，image.SCALE\u平滑@SanketB我已经更新了答案，希望它能起作用，它对我起作用：@SanketB我很高兴帮助你，你也可以投票支持我的答案：@Muhammad:他需要更多的声誉才能投票支持答案。为什么要实例化ImageIcon两次？一次获取图像并缩放它，第二次传递给JButton，因为它需要ImageIcon和字符串

new JButton("New", new ImageIcon(new ImageIcon(getClass().getResource("new.png")).getImage().getScaledInstance(50, 50, Image.SCALE_SMOOTH)));