我想改变按钮的大小。我想设置每个按钮的SQUARE类型视图,但不幸的是它给出了矩形外观。只有当我将行数设置为20或25时,才会得到方形外观。现在我的GUI看起来如下所示:。
我试图从按钮[i] [j] .setMaximumSize(new Dimension(20,20))中更改它,其中buttons是数组的名称。我也尝试过按钮[i] [j] .setsize,但它对它没有任何影响。我从以下设置:bPanel.setLayout(new GridLayout(x,y))我认为这是问题的主要原因。任何人都可以告诉我如何将其设置为布局管理器?
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComboBox;
import javax.swing.event.*;
import javax.swing.JFrame;
import sun.util.calendar.Gregorian;
public class Final_GUI extends JFrame implements ActionListener {
JLabel label;
ButtonGroup cbg;
JRadioButton radio_1;
JRadioButton radio_2;
JRadioButton radio_3;
JCheckBox checkbox_1;
JCheckBox checkbox_2;
JCheckBox checkbox_3;
JScrollPane scrollpane_1;
JComboBox combobox_1;
JList list_1;
JScrollPane sp_list_1;
JComboBox combobox_2;
JButton Orange;
JButton Exit;
JLabel for_text;
int x=200;
int y=100;
int check [][]= new int [x][y];
JFrame frame = new JFrame();
JButton[][] buttons = new JButton[x][y];
JPanel mPanel = new JPanel();
JPanel bPanel = new JPanel();
JPanel cPanel = new JPanel();
JTextArea scoreKeeper = new JTextArea();
int[][] intArray = new int[x][y];
public Final_GUI() {
butGen();
score();
Final_GUILayout customLayout = new Final_GUILayout();
getContentPane().setFont(new Font("Helvetica", Font.PLAIN, 12));
getContentPane().setLayout(customLayout);
label = new JLabel("Shortest Path Finding Algorithm");
getContentPane().add(label);
cbg = new ButtonGroup();
radio_1 = new JRadioButton("radio_1", false);
cbg.add(radio_1);
getContentPane().add(radio_1);
radio_2 = new JRadioButton("radio_2", false);
cbg.add(radio_2);
getContentPane().add(radio_2);
radio_3 = new JRadioButton("radio_3", false);
cbg.add(radio_3);
getContentPane().add(radio_3);
checkbox_1 = new JCheckBox("checkbox_1");
getContentPane().add(checkbox_1);
checkbox_2 = new JCheckBox("checkbox_2");
getContentPane().add(checkbox_2);
checkbox_3 = new JCheckBox("checkbox_3");
getContentPane().add(checkbox_3);
bPanel.setLayout(new GridLayout(x,y));
mPanel.setLayout(new BorderLayout());
mPanel.add(bPanel, BorderLayout.CENTER);
scrollpane_1 = new JScrollPane(mPanel);
scrollpane_1.setViewportView(mPanel);
getContentPane().add(scrollpane_1);
combobox_1 = new JComboBox();
combobox_1.addItem("Size1");
combobox_1.addItem("Size2");
getContentPane().add(combobox_1);
DefaultListModel listModel_list_1 = new DefaultListModel();
listModel_list_1.addElement("Black");
listModel_list_1.addElement("Green");
list_1 = new JList(listModel_list_1);
sp_list_1 = new JScrollPane(list_1);
getContentPane().add(sp_list_1);
combobox_2 = new JComboBox();
combobox_2.addItem("Additional Data");
combobox_2.addItem("Additional Data2");
getContentPane().add(combobox_2);
Orange = new JButton("Orange");
getContentPane().add(Orange);
Exit = new JButton("Exit");
getContentPane().add(Exit);
for_text = new JLabel("Just For some text");
getContentPane().add(for_text);
setSize(getPreferredSize());
addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
System.exit(0);
}
});
}
private void butGen()
{
for(int i=0;i<x;i++)
{
for(int j=0;j<y;j++)
{
buttons[i][j] = new JButton(String.valueOf(i)+"x"+String.valueOf(j));
buttons[i][j].setActionCommand("button" +i +"_" +j);
buttons[i][j].addActionListener(this);
buttons[i][j].setMaximumSize(new Dimension( 20, 20));
bPanel.add(buttons[i][j]);
}
}
}
public void actionPerformed(ActionEvent e)
{
if(e.getActionCommand().contains("button"))
{
String str = e.getActionCommand().replaceAll("button", "");
System.out.println(str);
String[] v = str.split("_");
int i = Integer.parseInt(v[0]);
int j = Integer.parseInt(v[1]);
intArray[i][j]++;
if(check[i][j]!=1){
buttons[i][j].setBackground(Color.black);
check[i][j]=1;
}
else{
buttons[i][j].setBackground(null);
check[i][j]=0;
}
System.out.println(e.getActionCommand() +" " +(i) +" " +(j));
score();
if(checkbox_1.isSelected())
{
buttons[i][j].setBackground(Color.GREEN);
}
}
}
private void score()
{
for(int i=0;i<x;i++)
for(int j=0;j<y;j++)
buttons[i][j].setText("");
}
public static void main(String args[]) {
Final_GUI window = new Final_GUI();
window.setTitle("SHORTEST PATH FINDING ALGORITHM");
window.setBackground(Color.black);
// window.setSize(800, 300);
window.setResizable(true);
window.resize(200, 500);
window.pack();
window.show();
}
}
GUI布局
class Final_GUILayout implements LayoutManager {
public Final_GUILayout() {
}
public void addLayoutComponent(String name, Component comp) {
}
public void removeLayoutComponent(Component comp) {
}
public Dimension preferredLayoutSize(Container parent) {
Dimension dim = new Dimension(0, 0);
Insets insets = parent.getInsets();
dim.width = 1053 + insets.left + insets.right;
dim.height = 621 + insets.top + insets.bottom;
return dim;
}
public Dimension minimumLayoutSize(Container parent) {
Dimension dim = new Dimension(0,0);
return dim;
}
public void layoutContainer(Container parent) {
Insets insets = parent.getInsets();
Component c;
c = parent.getComponent(0);
if (c.isVisible()) {c.setBounds(insets.left+368,insets.top+24,304,64);}
c = parent.getComponent(1);
if (c.isVisible()) {c.setBounds(insets.left+8,insets.top+120,72,24);}
c = parent.getComponent(2);
if (c.isVisible()) {c.setBounds(insets.left+8,insets.top+144,72,24);}
c = parent.getComponent(3);
if (c.isVisible()) {c.setBounds(insets.left+8,insets.top+168,72,24);}
c = parent.getComponent(4);
if (c.isVisible()) {c.setBounds(insets.left+88,insets.top+120,72,24);}
c = parent.getComponent(5);
if (c.isVisible()) {c.setBounds(insets.left+88,insets.top+144,72,24);}
c = parent.getComponent(6);
if (c.isVisible()) {c.setBounds(insets.left+88,insets.top+168,72,24);}
c = parent.getComponent(7);//Panel
if (c.isVisible()) {
c.setBounds(insets.left+168,insets.top+120,704,488);
}
c = parent.getComponent(8);
if (c.isVisible()) {c.setBounds(insets.left+880,insets.top+120,160,160);}
c = parent.getComponent(9);
if (c.isVisible()) {c.setBounds(insets.left+24,insets.top+232,128,216);}
c = parent.getComponent(10);
if (c.isVisible()) {c.setBounds(insets.left+880,insets.top+296,160,216);}
c = parent.getComponent(11);
if (c.isVisible()) {c.setBounds(insets.left+904,insets.top+528,112,24);}
c = parent.getComponent(12);
if (c.isVisible()) {c.setBounds(insets.left+888,insets.top+568,144,32);}
c = parent.getComponent(13);
if (c.isVisible()) {c.setBounds(insets.left+16,insets.top+472,120,48);}
}
}
答案 0 :(得分:3)
GridLayout
通过为每个组件提供相等的空间,使每个组件填充每个单元格来工作。
请查看How to use GridLayout了解详情。
如果你想要一个LayoutManager
为你提供最好的控制,但是(除非你另有说明)使用组件首选/最小/最大尺寸提示,你应该考虑尝试像{{{ 1}}而不是
请查看How to use GridBagLayout了解详情
答案 1 :(得分:0)
使用GridBagLayout,您可以设置内部组件的大小。
另一种方法是创建一个从JButton类继承的自定义按钮,并覆盖方法SetSize(int width,int height)和设置width = height。
您可以这样做:
public class SquareButton extends JButton{
@Override
public void setSize(int width, int height) {
super.setSize(width, width);
}
}
有了这个,你定义了一个JButton
的新类,它继承了JButton
的所有方法,但是这个SquareButton类的所有实例都具有相同的宽度和高度。
也许你不需要这样做,但我认为它有效。另一方面,使用这个新类,您无法为按钮设置其他大小关系。
另一种方法是在新的SquareButton
类中创建一个新方法来设置所需的大小(或关系宽度/高度),而不是覆盖SetSize(int width, int height)
。