| 1 | /* This file is part of the KDE project |
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| 2 | Copyright (C) 2006-2008 Ricardo Villalba <rvm@escomposlinux.org> |
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| 3 | |
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| 4 | This library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) version 3, or any |
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| 8 | later version accepted by the membership of KDE e.V. (or its |
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| 9 | successor approved by the membership of KDE e.V.), Nokia Corporation |
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| 10 | (or its successors, if any) and the KDE Free Qt Foundation, which shall |
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| 11 | act as a proxy defined in Section 6 of version 3 of the license. |
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| 12 | |
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| 13 | This library is distributed in the hope that it will be useful, |
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| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 16 | Lesser General Public License for more details. |
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| 17 | |
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| 18 | You should have received a copy of the GNU Lesser General Public |
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| 19 | License along with this library. If not, see <http://www.gnu.org/licenses/>. |
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| 20 | |
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| 21 | */ |
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| 22 | |
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| 23 | #ifndef SWIFTSLIDER_H |
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| 24 | #define SWIFTSLIDER_H |
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| 25 | |
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| 26 | #include <QSlider> |
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| 27 | #include <QTimer> |
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| 28 | |
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| 29 | #if !defined(QT_NO_PHONON_SEEKSLIDER) && !defined(QT_NO_PHONON_VOLUMESLIDER) |
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| 30 | |
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| 31 | namespace Phonon |
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| 32 | { |
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| 33 | |
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| 34 | /** \class SwiftSlider swiftslider_p.h phonon/SwiftSlider |
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| 35 | * \short Modified QSlider that allows sudden/quick moves instead of stepped moves ("Click'n'Go" QSlider) |
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| 36 | * |
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| 37 | * This is an internal class used by SeekSlider and VolumeSlider. |
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| 38 | * |
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| 39 | * Ricardo Villalba, the original author of MySlider.cpp (from the SMPlayer project) |
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| 40 | * gave his permission for the inclusion of this code inside Phonon by |
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| 41 | * switching MySlider.cpp to the LGPLv2.1+ license. |
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| 42 | * See http://smplayer.svn.sourceforge.net/viewvc/smplayer/smplayer/trunk/src/myslider.cpp?revision=2406&view=markup |
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| 43 | * |
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| 44 | * The original discussion about a "Click'n'Go QSlider": http://lists.trolltech.com/qt-interest/2006-11/msg00363.html |
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| 45 | * |
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| 46 | * \ingroup PhononWidgets |
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| 47 | */ |
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| 48 | class SwiftSlider : public QSlider |
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| 49 | { |
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| 50 | Q_OBJECT |
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| 51 | public: |
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| 52 | SwiftSlider(Qt::Orientation orientation, QWidget * parent); |
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| 53 | ~SwiftSlider() override; |
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| 54 | |
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| 55 | signals: |
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| 56 | void scrollStart(); |
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| 57 | void scrollEnd(); |
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| 58 | |
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| 59 | private: |
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| 60 | void mousePressEvent(QMouseEvent *event) override; |
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| 61 | void wheelEvent(QWheelEvent *event) override; |
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| 62 | inline int pick(const QPoint &pt) const; |
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| 63 | int pixelPosToRangeValue(int pos) const; |
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| 64 | |
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| 65 | QTimer m_wheelTimer; |
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| 66 | }; |
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| 67 | |
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| 68 | } // namespace Phonon |
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| 69 | |
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| 70 | #endif //QT_NO_PHONON_VOLUMESLIDER && QT_NO_PHONON_VOLUMESLIDER |
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| 71 | |
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| 72 | #endif //SWIFTSLIDER_H |
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| 73 | |
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