qt5base-lts/examples/widgets/sliders/slidersgroup.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** 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 Nokia Corporation and its Subsidiary(-ies) 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,
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** 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."
**
** $QT_END_LICENSE$
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****************************************************************************/
#include <QtWidgets>
#include "slidersgroup.h"
//! [0]
SlidersGroup::SlidersGroup(Qt::Orientation orientation, const QString &title,
QWidget *parent)
: QGroupBox(title, parent)
{
slider = new QSlider(orientation);
slider->setFocusPolicy(Qt::StrongFocus);
slider->setTickPosition(QSlider::TicksBothSides);
slider->setTickInterval(10);
slider->setSingleStep(1);
scrollBar = new QScrollBar(orientation);
scrollBar->setFocusPolicy(Qt::StrongFocus);
dial = new QDial;
dial->setFocusPolicy(Qt::StrongFocus);
connect(slider, SIGNAL(valueChanged(int)), scrollBar, SLOT(setValue(int)));
connect(scrollBar, SIGNAL(valueChanged(int)), dial, SLOT(setValue(int)));
connect(dial, SIGNAL(valueChanged(int)), slider, SLOT(setValue(int)));
//! [0] //! [1]
connect(dial, SIGNAL(valueChanged(int)), this, SIGNAL(valueChanged(int)));
//! [1] //! [2]
//! [2] //! [3]
QBoxLayout::Direction direction;
//! [3] //! [4]
if (orientation == Qt::Horizontal)
direction = QBoxLayout::TopToBottom;
else
direction = QBoxLayout::LeftToRight;
QBoxLayout *slidersLayout = new QBoxLayout(direction);
slidersLayout->addWidget(slider);
slidersLayout->addWidget(scrollBar);
slidersLayout->addWidget(dial);
setLayout(slidersLayout);
}
//! [4]
//! [5]
void SlidersGroup::setValue(int value)
//! [5] //! [6]
{
slider->setValue(value);
}
//! [6]
//! [7]
void SlidersGroup::setMinimum(int value)
//! [7] //! [8]
{
slider->setMinimum(value);
scrollBar->setMinimum(value);
dial->setMinimum(value);
}
//! [8]
//! [9]
void SlidersGroup::setMaximum(int value)
//! [9] //! [10]
{
slider->setMaximum(value);
scrollBar->setMaximum(value);
dial->setMaximum(value);
}
//! [10]
//! [11]
void SlidersGroup::invertAppearance(bool invert)
//! [11] //! [12]
{
slider->setInvertedAppearance(invert);
scrollBar->setInvertedAppearance(invert);
dial->setInvertedAppearance(invert);
}
//! [12]
//! [13]
void SlidersGroup::invertKeyBindings(bool invert)
//! [13] //! [14]
{
slider->setInvertedControls(invert);
scrollBar->setInvertedControls(invert);
dial->setInvertedControls(invert);
}
//! [14]