minieditor.java

记事本 编译四个源文件

ds.setSize(250,110); 
ds.setVisible(true); 
} 
else if(ae.getSource() == bs) { 
int a = 0, b = 0; 
String str1, str2, str3, str4, strA, strB; 
str1 = ta.getText(); 
str2 = str1.toLowerCase(); 
str3 = tfs.getText(); 
str4 = str3.toLowerCase(); 
if(dsMatchCase.getState()) { 
strA = str1; 
strB = str3; 
} 
else { 
strA = str2; 
strB = str4; 
} 
a = strA.indexOf(strB, FindStartPos); 
if(a > -1) { 
ta.setCaretPosition(a); 
b = tfs.getText().length(); 
ta.select(a, a + b); 
FindStartPos = a + b; 
foundCount++; 
dsMessage2.setText(foundCount+""); 
} 
else { 
if(dsLoop.getState()) { 
JOptionPane.showMessageDialog(null, "End of file.", "Find result",1); 
FindStartPos = 0; 
} 
else { 
JOptionPane.showMessageDialog(null, "End of file.", "Find result",1); 
} 
foundCount = 0; 
} 
} 
else if(ae.getSource() == menuEditReplace) { 
JDialog dr = new JDialog(this, "Replace", true); 
dr.getContentPane().setLayout(new GridBagLayout()); 
GridBagConstraints gbc = new GridBagConstraints(); 
gbc.gridx = 0; 
gbc.gridy = 0; 
gbc.gridwidth = 2; 
gbc.gridheight =1; 
//gbc.fill = gbc.HORIZONTAL; gbc.anchor = gbc.CENTER; 
Panel p1 = new Panel(); 
dr.getContentPane().add(p1); 
//drMatchCase = new Checkbox("Match Case"); 
//gbc.gridx = 1; 
//gbc.gridy = 1; 
//gbc.gridwidth = 1; 
//gbc.gridheight =1; 
//dr.getContentPane().add(drMatchCase); 
gbc.gridx = 2; 
gbc.gridy = 0; 
gbc.gridwidth = 1; 
gbc.gridheight =1; 
//gbc.fill = gbc.NONE; gbc.anchor = gbc.EAST; 
Panel p2 = new Panel(); 
p1.setLayout(new GridLayout(5, 1)); 
p2.setLayout(new GridLayout(4, 1)); 
dr.getContentPane().add(p2); 
JLabel drMessage1 = new JLabel("Replace: "); 
JLabel drMessage2 = new JLabel("With: "); 
drMatchCase = new Checkbox("Match Case"); 
tfro = new TextField(15); 
tfrn = new TextField(15); 
p1.add(drMessage1); 
p1.add(tfro); 
p1.add(drMessage2); 
p1.add(tfrn); 
p1.add(drMatchCase); 
brf = new Button("Find"); 
//brf.addActionListener(this); 
brf.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent brfe) { 
int a = 0, b = 0; 
String str1, str2, str3, str4, strA, strB; 
str1 = ta.getText(); 
str2 = str1.toLowerCase(); 
str3 = tfro.getText(); 
str4 = str3.toLowerCase(); 
if(drMatchCase.getState()) { 
strA = str1; 
strB = str3; 
} 
else { 
strA = str2; 
strB = str4; 
} 
a = strA.indexOf(strB, FindStartPos); 
if(a > -1) { 
ta.setCaretPosition(a); 
b = tfro.getText().length(); 
ta.select(a, a + b); 
FindStartPos = a + b; 
foundCount++; 
} 
else { 
JOptionPane.showMessageDialog(null, "End of file.", "Result",1); 
foundCount = 0; 
} 
} 
}); 
brr = new Button("Replace"); 
brr.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent brre) { 
if(tfrn.getText().length() == 0 && ta.getSelectedText() != null) 
ta.replaceSelection(""); 
if(tfrn.getText().length() > 0 && ta.getSelectedText() != null) 
ta.replaceSelection(tfrn.getText()); 
int a = 0, b = 0; 
String str1, str2, str3, str4, strA, strB; 
str1 = ta.getText(); 
str2 = str1.toLowerCase(); 
str3 = tfro.getText(); 
str4 = str3.toLowerCase(); 
if(drMatchCase.getState()) { 
strA = str1; 
strB = str3; 
} 
else { 
strA = str2; 
strB = str4; 
} 
a = strA.indexOf(strB, FindStartPos); 
if(a > -1) { 
ta.setCaretPosition(a); 
b = tfro.getText().length(); 
ta.select(a, a + b); 
FindStartPos = a + b; 
foundCount++; 
} 
else { 
JOptionPane.showMessageDialog(null, "End of file.", "Result",1); 
foundCount = 0; 
} 
} 
}); 
brra = new Button("Replace All"); 
brra.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent brrae) { 
int a = 0; 
while( a > -1) { 
int b = 0; 
String str1, str2, str3, str4, strA, strB; 
str1 = ta.getText(); 
str2 = str1.toLowerCase(); 
str3 = tfro.getText(); 
str4 = str3.toLowerCase(); 
if(drMatchCase.getState()) { 
strA = str1; 
strB = str3; 
} 
else { 
strA = str2; 
strB = str4; 
} 
a = strA.indexOf(strB, FindStartPos); 
if(a > -1) { 
ta.setCaretPosition(a); 
b = tfro.getText().length(); 
ta.select(a, a + b); 
FindStartPos = a + b; 
foundCount++; 
} 
else { 
JOptionPane.showMessageDialog(null, "End of file.", "Result",1); 
foundCount = 0; 
} 
if(tfrn.getText().length() == 0 && ta.getSelectedText() != null) 
ta.replaceSelection(""); 
if(tfrn.getText().length() > 0 && ta.getSelectedText() != null) 
ta.replaceSelection(tfrn.getText()); 
} 
} 
}); 
Button brc = new Button("Cancel"); 
brc.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent brce) { 
dispose(); 
} 
}); 
p2.add(brf); 
p2.add(brr); 
p2.add(brra); 
p2.add(brc); 
dr.setResizable(false); 
dr.setLocation(120, 120); 
dr.addWindowListener(new WindowAdapter() { 
public void windowClosing(WindowEvent e) { 
dispose(); 
FindStartPos = 0; 
} 
}); 
dr.setSize(220,138); 
dr.setVisible(true); 

} 
else if(ae.getSource() == menuEditGoTo) { 
JDialog dg = new JDialog(this, "Line Number", true); 
dg.getContentPane().setLayout(new FlowLayout()); 
final JTextField dgtf = new JTextField(4); 
Button dgOk = new Button("Go To"); 
dgOk.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent brce) { 
int totalLine = ta.getLineCount(); 
int[] lineNumber = new int[totalLine + 1]; 
String s = ta.getText(); 
int pos = 0, t = 0; 
while(true) { 
pos = s.indexOf(′\12′, pos); 
if(pos == -1) 
break; 
lineNumber[t++] = pos++; 
} 
int gt = 1; 
try { 
gt = Integer.parseInt(dgtf.getText()); 
} catch(NumberFormatException efe) { 
JOptionPane.showMessageDialog(null, "Please enter an integer.", "Input",1); 
} 
if(gt < 2 || gt >= totalLine) { 
if(gt < 2) 
ta.setCaretPosition(0); 
else 
ta.setCaretPosition(s.length()); 
} 
else 
ta.setCaretPosition(lineNumber[gt-2] + 1); 
dispose(); 
} 
}); 
Button dgCancel = new Button("Cancel"); 
dgCancel.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent brce) { 
dispose(); 
} 
}); 
dg.getContentPane().add(dgtf); 
dg.getContentPane().add(dgOk); 
dg.getContentPane().add(dgCancel); 
dg.setResizable(false); 
dg.setLocation(120, 120); 
dg.addWindowListener(new WindowAdapter() { 
public void windowClosing(WindowEvent e) { 
dispose(); 
} 
}); 
dg.setSize(180,60); 
dg.setVisible(true); 
} 
else if(ae.getSource() == menuEditSelectAll) { 
ta.selectAll(); 
} 
else if(ae.getSource() == menuViewFont) { 
MenuFont mf = new MenuFont(this, true); 
ta.setFont(mf.myLayout(ta.getFont())); 
} 
else if(ae.getSource() == menuViewColor) { 
MenuColor mc = new MenuColor(this, true); 
Color[] fbgc = new Color[2]; 
fbgc = mc.myLayout(ta.getForeground(), ta.getBackground()); 
ta.setForeground(fbgc[0]); 
ta.setBackground(fbgc[1]); 
ta.setCaretColor(fbgc[0]); 
} 
else if(ae.getSource() == menuViewClassic) { 
if(menuViewClassic.getState()) { 
ta.setForeground(new Color(0, 255, 0)); 
ta.setBackground(new Color(45, 0, 45)); 
ta.setFont(new Font("Serif", Font.BOLD, 16)); 
ta.setCaretColor(new Color(0, 255, 0)); 
} 
else { 
ta.setForeground(defaultForeground); 
ta.setBackground(defaultBackground); 
ta.setFont(defaultFont); 
ta.setCaretColor(defaultCaretColor); 
} 
} 
else if(ae.getSource() == menuViewStatus) { 
if(menuViewStatus.getState()) { 
showStatus(); 
} 
} 
else if(ae.getSource() == menuViewWordWrap) { 
if(menuViewWordWrap.getState()) { 
ta.setLineWrap(true); 
} 
else { 
ta.setLineWrap(false); 
} 
} 
else if(ae.getSource() == menuViewDoubleSpace) { 
int pos = 0, t = 0; 
String str = ta.getText(); 
while(true){ 
pos = str.indexOf(′\15′, pos); 
if(pos == -1) break; 
str = str.substring(0, pos) + ′\15′ + ′\12′ + str.substring(pos); 
pos = pos + 3; 
} 
ta.setText(str); 
} 
else if(ae.getSource() == menuHelpAbout) { 
dl = new JDialog(this,"About MiniEditor", true); 
dl.getContentPane().setLayout(new GridLayout(3,3)); 
dl.setBackground(new Color(212,208,200)); 
Button bOk = new Button("OK"); 
bOk.addActionListener(new ActionListener() { 
public void actionPerformed(ActionEvent bOke) { 
dispose(); 
} 
}); 
Label ver = new Label("Version .9"); 
Label null1 = new Label(); 
Label null2 = new Label(); 
Label null3 = new Label(); 
Label null4 = new Label(); 
Label null5 = new Label(); 
Label null6 = new Label(); 
Label null7 = new Label(); 
dl.getContentPane().add(null1); 
dl.getContentPane().add(ver); 
dl.getContentPane().add(null2); 
dl.getContentPane().add(null3); 
dl.getContentPane().add(bOk); 
dl.getContentPane().add(null4); 
dl.getContentPane().add(null5); 
dl.getContentPane().add(null6); 
dl.getContentPane().add(null7); 
bOk.addActionListener(this); 
dl.addWindowListener(new WindowAdapter() { 
public void windowClosing(WindowEvent e) { 
dispose(); 
} 
}); 
dl.setLocation(120, 120); 
dl.setResizable(false); 
dl.setSize(200,80); 
dl.setVisible(true); 

} 
}//end of ActionListener 

//DocumentListener 
public void removeUpdate(DocumentEvent e) { 
String s; 
s = fileStatus.getText(); 
if(!s.endsWith("*") & beginTextListener & !isNewFile) { 
fileStatus.setText("*"); 
} 
menuEditUndo.setEnabled(true); 
} 
public void insertUpdate(DocumentEvent e) { 
String s; 
s = fileStatus.getText(); 
if(!s.endsWith("*") & beginTextListener & !isNewFile) { 
fileStatus.setText("*"); 
} 
menuEditUndo.setEnabled(true); 
} 
public void changedUpdate(DocumentEvent e) { 
String s; 
s = fileStatus.getText(); 
if(!s.endsWith("*") & beginTextListener & !isNewFile) { 
fileStatus.setText("*"); 
} 
menuEditUndo.setEnabled(true); 
} 
//end of DocumentListener 

// Caretlistener 
public void caretUpdate(CaretEvent e) { 
if(menuViewStatus.getState()) 
showStatus(); 
}// end of Caretlistener 

// KeyListener 
public void keyPressed(KeyEvent e) { 
if(e.getKeyCode() == ′\10′) { 
BACKSPACE = true; 
} 
//if(menuViewStatus.getState()) 
// showStatus(); 
} 
public void keyReleased(KeyEvent e) { 
if(e.getKeyCode() == 155) { //ESCAPE = 155 
if(INSERTMODE) 
INSERTMODE = false; 
else 
INSERTMODE = true; 
} 
if(menuViewStatus.getState()) 
showStatus(); 
} 
public void keyTyped(KeyEvent e) { 
beginTextListener = true; 
isNewFile = false; 
if(!BACKSPACE) { 
if(!INSERTMODE) { 
int pos = ta.getCaretPosition(); 
char c = ta.getText().charAt(pos); 
if(c == ′\12′) { 
} 
else if(c == ′\15′) { 
} 
else { 
ta.replaceRange("", pos, pos + 1); 
} 
} 
} 
BACKSPACE = false; 
}// end of KeyListener 

void showStatus() { 
int rows, cols, from, current, to, fileSize; 
rows = cols = from = current = 0; 
to = ta.getCaretPosition(); 
fileSize = 0; 
String str = ta.getText(); 
cols = to - str.substring(0, to).lastIndexOf(10); 
fileSize = str.length(); 
String mode; 
if(INSERTMODE) { 
mode = "INSERT"; 
} 
else { 
mode = "OVERLAY"; 
} 
try { 
rows = ta.getLineOfOffset(to) + 1; 
} catch(BadLocationException ble) { 
} 
statusRow.setText("row: " + rows); 
statusCol.setText("col: " + cols); 
statusMode.setText("mode: " + mode); 
statusSize.setText("size: " + fileSize); 
//fileStatus.setText("file status: "); 
} 

int wordLocation(String str, int pos, boolean isToRight) { 
char c; 
if(isToRight) { 
c = str.charAt(pos); 
while(true) { 
if(c < 48) break; 
else if(c > 57 & c < 65) break; 
else if(c > 90 & c < 97) break; 
else if(c > 122) break; 
pos++; 
c = str.charAt(pos); 
} 
return pos--; 
} 
else { 
pos--; 
c = str.charAt(pos); 
while(true) { 
if(c < 48) break; 
else if(c > 57 & c < 65) break; 
else if(c > 90 & c < 97) break; 
else if(c > 122) break; 
pos--; 
c = str.charAt(pos); 
} 
return pos++; 
} 

} 

class UndoHandler implements UndoableEditListener { 
public void undoableEditHappened(UndoableEditEvent uee) { 
undo.addEdit(uee.getEdit()); 
} 
} 

}//end of class MiniEditor