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ghostwriter/src/StringObserver.h at master · jackcoolpython/ghostwriter · GitHub
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StringObserver.h
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StringObserver.h
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/*
**********************************************************************
*
* Copyright (C) 2018-2019 wereturtle
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
**********************************************************************
*/
#
ifndef
STRINGOBSERVER_H
#
define
STRINGOBSERVER_H
#
include
<
QObject
>
#
include
<
QString
>
/*
*
* Observer pattern for a QString. Used in notifying web channel in
* QtWebEngine (Chromium) that a Qt C++ variable has been modified.
*/
class
StringObserver
:
public
QObject
{
Q_OBJECT
Q_PROPERTY
(QString text
MEMBER
mText
NOTIFY
textChanged
FINAL
)
public:
/*
*
* Constructor.
*/
explicit
StringObserver
(QObject* parent =
nullptr
);
/*
*
* Destructor.
*/
virtual
~StringObserver
();
/*
*
* Set the text of the string.
*/
void
setText
(
const
QString& text);
/*
*
* Get the text of the string.
*/
QString
getText
()
const
;
signals:
/*
*
* Emitted when the string value changes.
*/
void
textChanged
(
const
QString& text);
private:
/*
* Internal string being observed.
*/
QString
mText
;
};
#
endif
//
STRINGOBSERVER_H
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