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/*
* slider.cpp - slider control with read-only option
* Program: kalarm
* Copyright (c) 2004 by David Jarvie <software@astrojar.org.uk>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "slider.moc"
Slider::Slider(QWidget* parent, const char* name)
: QSlider(parent, name),
mReadOnly(false)
{ }
Slider::Slider(Orientation o, QWidget* parent, const char* name)
: QSlider(o, parent, name),
mReadOnly(false)
{ }
Slider::Slider(int minval, int maxval, int pageStep, int value, Orientation o, QWidget* parent, const char* name)
: QSlider(minval, maxval, pageStep, value, o, parent, name),
mReadOnly(false)
{ }
/******************************************************************************
* Set the read-only status. If read-only, the slider can be moved by the
* application, but not by the user.
*/
void Slider::setReadOnly(bool ro)
{
mReadOnly = ro;
}
/******************************************************************************
* Event handlers to intercept events if in read-only mode.
* Any events which could change the slider value are discarded.
*/
void Slider::mousePressEvent(QMouseEvent* e)
{
if (mReadOnly)
{
// Swallow up the event if it's the left button
if (e->button() == Qt::LeftButton)
return;
}
QSlider::mousePressEvent(e);
}
void Slider::mouseReleaseEvent(QMouseEvent* e)
{
if (!mReadOnly)
QSlider::mouseReleaseEvent(e);
}
void Slider::mouseMoveEvent(QMouseEvent* e)
{
if (!mReadOnly)
QSlider::mouseMoveEvent(e);
}
void Slider::keyPressEvent(QKeyEvent* e)
{
if (!mReadOnly || e->key() == Qt::Key_Escape)
QSlider::keyPressEvent(e);
}
void Slider::keyReleaseEvent(QKeyEvent* e)
{
if (!mReadOnly)
QSlider::keyReleaseEvent(e);
}
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