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Copy pathfindJDialog.java
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Copy pathfindJDialog.java
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213 lines (189 loc) · 6.11 KB
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package notepad;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.FlowLayout;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import javax.swing.text.BadLocationException;
import javax.swing.text.DefaultHighlighter;
import javax.swing.text.Highlighter;
import javax.swing.text.Highlighter.HighlightPainter;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTextField;
import javax.swing.JCheckBox;
import javax.swing.JRadioButton;
import javax.swing.JTextArea;
import javax.swing.ButtonGroup;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.event.ActionEvent;
public class findJDialog extends JDialog {
private final JPanel contentPanel = new JPanel();
private JTextField textField;
private final ButtonGroup buttonGroup = new ButtonGroup();
private Highlighter highlighter;
private HighlightPainter painter_yellow = new DefaultHighlighter.DefaultHighlightPainter(Color.yellow);
private HighlightPainter painter_orange = new DefaultHighlighter.DefaultHighlightPainter(Color.orange);
int n;
int position;
static boolean isopen = false;
/**
* Launch the application.
*/
// public static void main(String[] args) {
// try {
// findJDialog dialog = new findJDialog();
// dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
// dialog.setVisible(true);
// } catch (Exception e) {
// e.printStackTrace();
// }
// }
/*
* 设置静态方法 判断是否打开
*/
public static boolean getisopen()
{
return isopen;
}
/**
* Create the dialog.
*/
public findJDialog(JTextArea textArea) {
setTitle("查找");
// 设置一直在前面
isopen = true;
setAlwaysOnTop(true);
setBounds(100, 100, 705, 339);
getContentPane().setLayout(new BorderLayout());
contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
getContentPane().add(contentPanel, BorderLayout.CENTER);
contentPanel.setLayout(null);
JLabel label = new JLabel("查找内容");
label.setBounds(57, 63, 72, 18);
contentPanel.add(label);
textField = new JTextField();
textField.setBounds(168, 57, 384, 24);
contentPanel.add(textField);
textField.setColumns(10);
JCheckBox checkword = new JCheckBox("区分大小写");
checkword.setBounds(64, 168, 133, 27);
contentPanel.add(checkword);
JRadioButton up = new JRadioButton("向上");
buttonGroup.add(up);
up.setBounds(345, 168, 59, 27);
contentPanel.add(up);
JRadioButton down = new JRadioButton("向下");
down.setSelected(true);
buttonGroup.add(down);
down.setBounds(413, 168, 72, 27);
contentPanel.add(down);
{
JPanel buttonPane = new JPanel();
buttonPane.setLayout(new FlowLayout(FlowLayout.RIGHT));
getContentPane().add(buttonPane, BorderLayout.SOUTH);
{
JButton okButton = new JButton("OK");
okButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
String s = textArea.getText();
String str = textField.getText();
highlighter = textArea.getHighlighter();
highlighter.removeAllHighlights();
/*
* 判断是否忽略大小写；
* 如果忽略大小写的话，把匹配和被匹配的字符全变成小写
* 否在不变
*/
if(checkword.isSelected() == false) {
s = s.toLowerCase();
str = str.toLowerCase();
}
/*
* 获取指针，找到下一个匹配字符，定位到此处并标橙色
* 具体做法是：判断是否存在匹配的字符 如果存在 就判断是否向上查找还是向上查找
* 其中我加上了循环查找
*/
position = textArea.getCaretPosition();
if(s.indexOf(str) == -1) {
setAlwaysOnTop(false);
JOptionPane.showMessageDialog(null, "没有找到匹配的字符", "查找", 0);
setAlwaysOnTop(true);
}else {
if(down.isSelected()) {
position = s.indexOf(str, position);
if(position == -1)position = s.indexOf(str);
System.out.println("index" + position);
textArea.setCaretPosition(position+str.length());
try {
highlighter.addHighlight(position, position+str.length(), painter_orange);
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}else {
position = s.lastIndexOf(str, position - str.length());
if(position == -1) {
position = s.lastIndexOf(str, s.length());
System.out.println("找不到的" + position);
}
System.out.println("last = " + position);
textArea.setCaretPosition(position);
try {
highlighter.addHighlight(position, position+str.length(), painter_orange);
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
/*
* 把其他匹配的字符标成黄色
*/
n = s.indexOf(str);
while(n != -1) {
try {
if(n != position)
{
highlighter.addHighlight(n, n+str.length(), painter_yellow);
}
} catch (BadLocationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
n = s.indexOf(str, n+str.length());
}
}
});
okButton.setActionCommand("OK");
buttonPane.add(okButton);
getRootPane().setDefaultButton(okButton);
}
JButton cancelButton = new JButton("Cancel");
cancelButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent arg0) {
isopen = false;
dispose();
}
});
cancelButton.setActionCommand("Cancel");
buttonPane.add(cancelButton);
}
/*
* 检测是否关闭查找窗口，如果是把isopen标志 改为false
*/
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
super.windowClosing(e);
isopen = false;
}
});
}
}