Hook QLineEdit showing text
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Multi tool use
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?
c++ qt
add a comment |
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?
c++ qt
3
Create an inheritance class and implement there that kind of a behaviour
– Alexander Chernin
Dec 29 '18 at 21:44
add a comment |
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?
c++ qt
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?
c++ qt
c++ qt
asked Dec 29 '18 at 21:15
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Дмитрий СуворовДмитрий Суворов
83
83
3
Create an inheritance class and implement there that kind of a behaviour
– Alexander Chernin
Dec 29 '18 at 21:44
add a comment |
3
Create an inheritance class and implement there that kind of a behaviour
– Alexander Chernin
Dec 29 '18 at 21:44
3
3
Create an inheritance class and implement there that kind of a behaviour
– Alexander Chernin
Dec 29 '18 at 21:44
Create an inheritance class and implement there that kind of a behaviour
– Alexander Chernin
Dec 29 '18 at 21:44
add a comment |
1 Answer
1
active
oldest
votes
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;
}
};
Does it work if the user enters the text using the GUI non-programmatically?
– eyllanesc
Dec 29 '18 at 22:09
if the line edit is editable we have to use textChanged(const QString &text) signal and connect it to setLineText(QString)
– Veera
Dec 29 '18 at 22:14
and do not you think it generated an infinite loop? since according to your logic textChanged would call setLineText, and setLineText calls setText internally to call textChanged, textChanged would call setLineText and returned we will return to the beginning.
– eyllanesc
Dec 29 '18 at 22:17
you are correct. we have to use textEdited(const QString &text) to avoid infinite loop instead of textChanged()
– Veera
Dec 29 '18 at 22:20
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
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;
}
};
Does it work if the user enters the text using the GUI non-programmatically?
– eyllanesc
Dec 29 '18 at 22:09
if the line edit is editable we have to use textChanged(const QString &text) signal and connect it to setLineText(QString)
– Veera
Dec 29 '18 at 22:14
and do not you think it generated an infinite loop? since according to your logic textChanged would call setLineText, and setLineText calls setText internally to call textChanged, textChanged would call setLineText and returned we will return to the beginning.
– eyllanesc
Dec 29 '18 at 22:17
you are correct. we have to use textEdited(const QString &text) to avoid infinite loop instead of textChanged()
– Veera
Dec 29 '18 at 22:20
add a comment |
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;
}
};
Does it work if the user enters the text using the GUI non-programmatically?
– eyllanesc
Dec 29 '18 at 22:09
if the line edit is editable we have to use textChanged(const QString &text) signal and connect it to setLineText(QString)
– Veera
Dec 29 '18 at 22:14
and do not you think it generated an infinite loop? since according to your logic textChanged would call setLineText, and setLineText calls setText internally to call textChanged, textChanged would call setLineText and returned we will return to the beginning.
– eyllanesc
Dec 29 '18 at 22:17
you are correct. we have to use textEdited(const QString &text) to avoid infinite loop instead of textChanged()
– Veera
Dec 29 '18 at 22:20
add a comment |
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;
}
};
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;
}
};
answered Dec 29 '18 at 22:06
VeeraVeera
749
749
Does it work if the user enters the text using the GUI non-programmatically?
– eyllanesc
Dec 29 '18 at 22:09
if the line edit is editable we have to use textChanged(const QString &text) signal and connect it to setLineText(QString)
– Veera
Dec 29 '18 at 22:14
and do not you think it generated an infinite loop? since according to your logic textChanged would call setLineText, and setLineText calls setText internally to call textChanged, textChanged would call setLineText and returned we will return to the beginning.
– eyllanesc
Dec 29 '18 at 22:17
you are correct. we have to use textEdited(const QString &text) to avoid infinite loop instead of textChanged()
– Veera
Dec 29 '18 at 22:20
add a comment |
Does it work if the user enters the text using the GUI non-programmatically?
– eyllanesc
Dec 29 '18 at 22:09
if the line edit is editable we have to use textChanged(const QString &text) signal and connect it to setLineText(QString)
– Veera
Dec 29 '18 at 22:14
and do not you think it generated an infinite loop? since according to your logic textChanged would call setLineText, and setLineText calls setText internally to call textChanged, textChanged would call setLineText and returned we will return to the beginning.
– eyllanesc
Dec 29 '18 at 22:17
you are correct. we have to use textEdited(const QString &text) to avoid infinite loop instead of textChanged()
– Veera
Dec 29 '18 at 22:20
Does it work if the user enters the text using the GUI non-programmatically?
– eyllanesc
Dec 29 '18 at 22:09
Does it work if the user enters the text using the GUI non-programmatically?
– eyllanesc
Dec 29 '18 at 22:09
if the line edit is editable we have to use textChanged(const QString &text) signal and connect it to setLineText(QString)
– Veera
Dec 29 '18 at 22:14
if the line edit is editable we have to use textChanged(const QString &text) signal and connect it to setLineText(QString)
– Veera
Dec 29 '18 at 22:14
and do not you think it generated an infinite loop? since according to your logic textChanged would call setLineText, and setLineText calls setText internally to call textChanged, textChanged would call setLineText and returned we will return to the beginning.
– eyllanesc
Dec 29 '18 at 22:17
and do not you think it generated an infinite loop? since according to your logic textChanged would call setLineText, and setLineText calls setText internally to call textChanged, textChanged would call setLineText and returned we will return to the beginning.
– eyllanesc
Dec 29 '18 at 22:17
you are correct. we have to use textEdited(const QString &text) to avoid infinite loop instead of textChanged()
– Veera
Dec 29 '18 at 22:20
you are correct. we have to use textEdited(const QString &text) to avoid infinite loop instead of textChanged()
– Veera
Dec 29 '18 at 22:20
add a comment |
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3
Create an inheritance class and implement there that kind of a behaviour
– Alexander Chernin
Dec 29 '18 at 21:44