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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "volumebutton.h"
#include <QtWidgets>
#include <QtWinExtras>
VolumeButton::VolumeButton(QWidget *parent) :
QToolButton(parent)
{
setIcon(style()->standardIcon(QStyle::SP_MediaVolume));
setPopupMode(QToolButton::InstantPopup);
QWidget *popup = new QWidget(this);
slider = new QSlider(Qt::Horizontal, popup);
slider->setRange(0, 100);
connect(slider, &QAbstractSlider::valueChanged, this, &VolumeButton::volumeChanged);
label = new QLabel(popup);
label->setAlignment(Qt::AlignCenter);
label->setNum(100);
label->setMinimumWidth(label->sizeHint().width());
typedef void(QLabel::*IntSlot)(int);
connect(slider, &QAbstractSlider::valueChanged, label, static_cast<IntSlot>(&QLabel::setNum));
QBoxLayout *popupLayout = new QHBoxLayout(popup);
popupLayout->setMargin(2);
popupLayout->addWidget(slider);
popupLayout->addWidget(label);
QWidgetAction *action = new QWidgetAction(this);
action->setDefaultWidget(popup);
menu = new QMenu(this);
menu->addAction(action);
setMenu(menu);
stylize();
}
void VolumeButton::increaseVolume()
{
slider->triggerAction(QSlider::SliderPageStepAdd);
}
void VolumeButton::descreaseVolume()
{
slider->triggerAction(QSlider::SliderPageStepSub);
}
int VolumeButton::volume() const
{
return slider->value();
}
void VolumeButton::setVolume(int volume)
{
slider->setValue(volume);
}
//! [0]
void VolumeButton::stylize()
{
if (QtWin::isCompositionEnabled()) {
QtWin::enableBlurBehindWindow(menu);
QString css("QMenu { border: 1px solid %1; border-radius: 2px; background: transparent; }");
menu->setStyleSheet(css.arg(QtWin::realColorizationColor().name()));
} else {
QtWin::disableBlurBehindWindow(menu);
QString css("QMenu { border: 1px solid black; background: %1; }");
menu->setStyleSheet(css.arg(QtWin::realColorizationColor().name()));
}
}
//! [0]
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