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/***************************************************************************
*
* Copyright (C) 2005 Elad Lahav (elad_lahav@users.sourceforge.net)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
***************************************************************************/
#include "progressdlg.h"
/**
* Class constructor.
* @param sCaption The dialogue's title
* @param sText The text to display
* @param pParent The parent widget
* @param szName The widget's name
*/
ProgressDlg::ProgressDlg(const QString& sCaption, const QString& sText,
QWidget* pParent, const char* szName) :
KProgressDialog(pParent, szName, sCaption, sText, true),
m_nIdleValue(-1)
{
setAutoClose(false);
setAllowCancel(false);
// Create the idle-progress timer
m_pIdleTimer = new QTimer(this);
// Display a busy indicator by increasing the value of the idle counter
connect (m_pIdleTimer, SIGNAL(timeout()), this, SLOT(slotShowBusy()));
}
/**
* Class destructor.
*/
ProgressDlg::~ProgressDlg()
{
}
/**
* Sets a new value to the progress bar.
* If the new value is non-zero, the progress bar is advanced. Otherwise, the
* idle timer is initiated to display a busy indicator.
* @param nValue The new value to set.
*/
void ProgressDlg::setValue(int nValue)
{
KProgress* pProgress;
pProgress = progressBar();
if (nValue != 0) {
// Do nothing if the value hasn't changed
if (nValue == pProgress->progress())
return;
// Handle first non-zero value
if (m_nIdleValue >= 0) {
m_pIdleTimer->stop();
m_nIdleValue = -1;
pProgress->setPercentageVisible(true);
}
// Set the new value
pProgress->setValue(nValue);
}
else if (m_nIdleValue == -1) {
// Handle first 0 value
pProgress->setValue(0);
pProgress->setPercentageVisible(false);
m_nIdleValue = 0;
m_pIdleTimer->start(200);
}
}
void ProgressDlg::setIdle()
{
m_nIdleValue = -1;
setValue(0);
}
/**
* Increaes the value of the dummy counter by 1.
* This slot is called by the timeout() event of the idle timer.
*/
void ProgressDlg::slotShowBusy()
{
// Increase the counter
m_nIdleValue += 5;
if (m_nIdleValue == 100)
m_nIdleValue = 0;
// Set the value of the progress-bar
progressBar()->setValue(m_nIdleValue);
}
#include "progressdlg.moc"
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