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91 lines
2.4 KiB
C++
91 lines
2.4 KiB
C++
/*
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* slider.cpp - slider control with read-only option
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* Program: kalarm
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* Copyright © 2004-2006 by David Jarvie <djarvie@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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
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* GNU 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 License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "slider.h"
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#include <QMouseEvent>
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Slider::Slider(QWidget* parent)
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: QSlider(parent),
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mReadOnly(false)
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{ }
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Slider::Slider(Qt::Orientation o, QWidget* parent)
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: QSlider(o, parent),
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mReadOnly(false)
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{ }
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Slider::Slider(int minval, int maxval, int pageStep, Qt::Orientation o, QWidget* parent)
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: QSlider(o, parent),
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mReadOnly(false)
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{
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setRange(minval, maxval);
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setPageStep(pageStep);
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}
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/******************************************************************************
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* Set the read-only status. If read-only, the slider can be moved by the
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* application, but not by the user.
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*/
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void Slider::setReadOnly(bool ro)
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{
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mReadOnly = ro;
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}
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/******************************************************************************
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* Event handlers to intercept events if in read-only mode.
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* Any events which could change the slider value are discarded.
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*/
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void Slider::mousePressEvent(QMouseEvent* e)
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{
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if (mReadOnly)
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{
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// Swallow up the event if it's the left button
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if (e->button() == Qt::LeftButton)
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return;
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}
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QSlider::mousePressEvent(e);
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}
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void Slider::mouseReleaseEvent(QMouseEvent* e)
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{
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if (!mReadOnly)
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QSlider::mouseReleaseEvent(e);
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}
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void Slider::mouseMoveEvent(QMouseEvent* e)
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{
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if (!mReadOnly)
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QSlider::mouseMoveEvent(e);
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}
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void Slider::keyPressEvent(QKeyEvent* e)
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{
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if (!mReadOnly || e->key() == Qt::Key_Escape)
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QSlider::keyPressEvent(e);
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}
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void Slider::keyReleaseEvent(QKeyEvent* e)
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{
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if (!mReadOnly)
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QSlider::keyReleaseEvent(e);
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}
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#include "moc_slider.cpp"
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// vim: et sw=4:
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