public void insertString(FilterBypass fb, int offset, String string, AttributeSet attr)
throws BadLocationException {
StringBuilder builder = new StringBuilder(string);
for (int i = builder.length() - 1; i >= 0; i--) {
int cp = builder.codePointAt(i);
if (!Character.isDigit(cp) && cp != '-') {
builder.deleteCharAt(i);
if (Character.isSupplementaryCodePoint(cp)) {
i--;
builder.deleteCharAt(i);
}
}
}
super.insertString(fb, offset, builder.toString(), attr);
}
public void insertString(FilterBypass fb, int offset, String string, AttributeSet attr)
throws BadLocationException {
StringBuilder builder = new StringBuilder(string);
// 过滤用户输入的所有字符
filterInt(builder);
super.insertString(fb, offset, builder.toString(), attr);
}
public void replace(FilterBypass fb, int offset, int length, String string, AttributeSet attr)
throws BadLocationException {
if (string != null) {
StringBuilder builder = new StringBuilder(string);
// 过滤用户替换的所有字符
filterInt(builder);
string = builder.toString();
}
super.replace(fb, offset, length, string, attr);
}
public void replace(FilterBypass fb, int offs, int length, String str, AttributeSet a)
throws BadLocationException {
if ("\n".equals(str)) str = addWhiteSpace(fb.getDocument(), offs);
super.replace(fb, offs, length, str, a);
}