how to add smilies in QTextEdit

hi,

In QTextEdit if we enter ": )" it needs to change as image :) .. please guide me if u have any idea?

Thanks in advance.

Thanks & Regards,
Sivambigai.M

React on text changed signals or events.
Use setHtml and replace the :-) string with some html image tags.

hi

Thanks for your idea..

i have used

QObject::connect(textEdit, SIGNAL(textChanged()), this, SLOT(changePixmap()),Qt::QueuedConnection) ;

void CSmsWidget::changePixmap()
{
QString text =textEdit->toPlainText();
if (Qt::mightBeRichText(text)){
textEdit->setHtml(text);
}
}

but this is not working.. any idea?

Thanks in advance.

Do you think images come out of thin air?

replace the text :-) with something like <img source="...">

hi

Thanks for your reply :)


void CSmsWidget::changePixmap(){
QString text =textEdit->toPlainText();
if (text.contains(": )")){

QImage img(":/images/happy_smilie.png"); // todo: generate image in memory
m_currentMsg->document()->addResource(QTextDocument::HtmlResource, QUrl("happy_smilie.png" ), img);

text.replace(":)","<p><img src=\":/images/happy_smilie.png\"></p>");

m_currentMsg->setHtml(text);

}
}

This is working :) once again Thanks :)

---

Added after 6 minutes:

hi,

In the above code if i have entered two smiley character like this "hi :) (first one ) Hope you are fine :)(second)" .
In QTextEdit after entering the second smiley first image will get vanished.

Is it the problem because of both the smilies refers to the same image ?

Thanks in Advance

You are doing that in most possible wrong way. When you have multiple smileys then strange things will happen.
Take a look on that (QTextCursor is proper way of modifying editors/QTextDocument content):

Code:

---

void CSmsWidget::changePixmap()
{
    QRegExp reg(":\\)"); // you can improve regular expression
    QTextCursor cursor(textEdit->document()->find(reg));
 
    if (!cursor.isNull()) {
        cursor.insertHtml("<img src=\":/images/happy_smilie.png\">");
    }
}

---

hi MarekR22,

Thanks for your help :)

Please visit https://youtu.be/QXDfhien_vM

Please visit https://youtu.be/QXDfhien_vM for Emoticon widget to develop in Qt C++.