Recognize ~ in UNIX , with QCompleter

c0debreak

Hi,

It seems that QFileSystemModel doesn't recognize the starting "~" sign , and treat that as home folder , so i tried to replace it while using QLineEdit:

@
// ui->uri is a QLineEdit
connect (ui->uri , SIGNAL(textEdited(QString)) , SLOT(slotReplaceHomeSymbol(QString)));
@

@
void Window::slotReplaceHomeSymbol (QString text)
{
ui->uri->setText(text.replace(QRegExp("^~"), QDesktopServices::storageLocation(QDesktopServices::HomeLocation)));
}
@

After connecting that signal , completer never shows up again.

[Edit] code tags introduced. Please use "code wrapping":http://developer.qt.nokia.com/wiki/ForumHelp#e3f82045ad0f480d3fb9e0ac2d58fb01

miroslav

The completer shows up with a slight delay. Since you are setting the text right after it is edited, that probably interferes with the completer showing.

Instead, I would look at making a custom completer using the splitPath methods or something like that. Basically, instead of editing the text in the line edit, you would tell the completer how to interpret it.

See http://developer.qt.nokia.com/doc/qt-4.8/qcompleter.html#splitPath

c0debreak

@class UnixFsCompleter : public QCompleter
{
Q_OBJECT
public:
UnixFsCompleter (QObject *parent):
QCompleter (parent)
{}

QStringList splitPath(const QString &path) const
{
    if ( path.startsWith("~/") )
    {
        return QCompleter::splitPath(
                    QDesktopServices::storageLocation(QDesktopServices::HomeLocation) +
                    QDir::separator() +
                    path.right( path.length() - 2 )
                    );
    }

    return QCompleter::splitPath(path);
}

};@

It's not working , am i wrong here ?

goetz

bq. The [[Doc:QCompleter]] class provides completions based on an item model.

I doubt hat this class is what you need. I recommend looking at [[Doc:QValidator]], and especially its fixup() method.

c0debreak

@class UnixFsValidator : public QValidator
{
public:
UnixFsValidator(QObject *parent): QValidator (parent)
{}

virtual void fixup  (QString & path) const
{
    path.replace(QRegExp ("^~") , QDesktopServices::storageLocation(QDesktopServices::HomeLocation));
    qDebug() << "Replaced to: " << path;
}

virtual State validate (QString &, int &) const
{
    return QValidator::Acceptable;
}

};
@

So I'm wrong again ? This time i even see no output.