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- /*
-
- Copyright (C) 2001 Stefan Westerfeld
- stefan@space.twc.de
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public License
- along with this library; see the file COPYING.LIB. If not, write to
- the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA.
-
- */
-
- #include "common.h"
- #include <qobject.h>
-
- class KArtsFloatWatchPrivate;
- namespace Arts { class KFloatWatchProxy_impl; }
-
- /**
- * KArtsFloatWatch offers an easy way to watch aRts streams via Qt signals.
- * For instance, if you have an object of the following type:
- *
- * \code
- * interface StereoVolumeControl : StereoEffect {
- * attribute float scaleFactor;
- * readonly attribute float currentVolumeLeft;
- * readonly attribute float currentVolumeRight;
- * };
- * \endcode
- *
- * and you want to get notified when scaleFactor changes, you could do it
- * like this:
- *
- * \code
- * StereoVolumeControl stereoVolumeControl = ...;
- * KArtsFloatWatch *w = new KArtsFloatWatch(stereoVolumeControl, "scaleFactor_changed", this);
- * connect(w, SIGNAL(valueChanged(float)), this, SLOT(setValue(float)));
- * \endcode
- */
- class KArtsFloatWatch : public QObject {
- Q_OBJECT
- private:
- KArtsFloatWatchPrivate *d;
- friend class Arts::KFloatWatchProxy_impl;
-
- /**
- * called by the proxy (internal)
- */
- void change(float newValue);
-
- public:
- /**
- * Constructor.
- *
- * @param object the aRts object that should be watched
- * @param stream the aRts stream that should be watched
- * @param parent the parent Qt object
- * @param name the Qt object name of this object
- */
- KArtsFloatWatch(Arts::Object object, const char *stream, QObject *parent = 0, const char *name = 0);
-
- /**
- * Destructor
- */
- ~KArtsFloatWatch();
-
- signals:
- /**
- * this signal will be emitted with values of the aRts stream
- */
- void valueChanged(float newValue);
- };
-