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76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
/*
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* FadeButton.h - declaration of class fadeButton
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*
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* Copyright (c) 2005-2009 Tobias Doerffel <tobydox/at/users.sourceforge.net>
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*
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* This file is part of LMMS - https://lmms.io
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program (see COPYING); if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA.
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*
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*/
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#ifndef FADE_BUTTON_H
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#define FADE_BUTTON_H
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#include <QtCore/QTime>
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#include <QAbstractButton>
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#include <QColor>
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class FadeButton : public QAbstractButton
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{
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Q_OBJECT
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public:
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FadeButton( const QColor & _normal_color,
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const QColor & _activated_color,
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const QColor & _hold_color,
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QWidget * _parent );
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virtual ~FadeButton();
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void setActiveColor( const QColor & activated_color );
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public slots:
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void activate();
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void noteEnd();
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protected:
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void customEvent( QEvent * ) override;
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void paintEvent( QPaintEvent * _pe ) override;
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private:
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QTime m_stateTimer;
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QTime m_releaseTimer;
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// the default color of the widget
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QColor m_normalColor;
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// the color on note play
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QColor m_activatedColor;
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// the color after the "play" fade is done but a note is still playing
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QColor m_holdColor;
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int activeNotes;
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void signalUpdate();
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QColor fadeToColor(QColor, QColor, QTime, float);
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} ;
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#endif
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