钩QLineEdit显示文本

Question

Here is my problem. I type some text into myLineEdit, for example "123456789 987654321", and I want to hide some substring in LineEdit, say "23" when displaying is hidden by another symbol "x". That's what i want to see "1x456789 987654321", but myLineEdit->text() must still return the correct string without replacements ("123456789 987654321"). So what what will help me to do this?

Answer 1

Hope this would be helpful. Instead of calling setText(QString) and text(), call setLineText(QString) and getText().

#include <qlineedit.h>
class LineEdit :public QLineEdit
{
    Q_OBJECT
        LineEdit();
       ~LineEdit();
       QString hide_txt="23";
     void setLineText(QString txt) {
         txt.replace(hide_txt, "x");
         setText(txt);}
     QString getText() {
         QString txt = text();
         txt.replace("x", hide_txt);
         return txt;
     }

};