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/***************************************************************************
krpleasewait.cpp
-------------------
copyright : (C) 2000 by Shie Erlich & Rafi Yanai
e-mail : krusader@users.sourceforge.net
web site : http://krusader.sourceforge.net
---------------------------------------------------------------------------
Description
***************************************************************************
A
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S o u r c e F i l e
***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "krpleasewait.h"
#include <qtimer.h>
#include <qdatetime.h>
#include <qapplication.h>
#include <qpushbutton.h>
#include <unistd.h>
#include "../krusader.h"
#include "klocale.h"
#include <kcursor.h>
KRPleaseWait::KRPleaseWait( QString msg, int count, bool cancel ):
QProgressDialog( cancel ? 0 : krApp,0, !cancel) , inc(true) {
timer = new QTimer(this);
setCaption( i18n( "Krusader::Wait" ) );
setMinimumDuration(500);
setAutoClose(false);
setAutoReset(false);
connect( timer,SIGNAL(timeout()), this, SLOT(cycleProgress()));
QProgressBar* progress = new QProgressBar(count,this);
progress->setCenterIndicator(true);
setBar(progress);
QLabel* label = new QLabel(this);
setLabel(label);
QPushButton* btn = new QPushButton(i18n("&Cancel"),this);
setCancelButton(btn);
btn->setEnabled(canClose = cancel);
setLabelText(msg);
show();
}
void KRPleaseWait::closeEvent ( QCloseEvent * e )
{
if( canClose ) {
emit cancelled();
e->accept();
} else /* if cancel is not allowed, we disable */
e->ignore(); /* the window closing [x] also */
}
void KRPleaseWait::incProgress(int howMuch){
setProgress(progress()+howMuch);
}
void KRPleaseWait::cycleProgress(){
if (inc) setProgress(progress()+1);
else setProgress(progress()-1);
if ( progress() >= 9 ) inc = false;
if ( progress() <= 0 ) inc = true;
}
KRPleaseWaitHandler::KRPleaseWaitHandler() : QObject(), job(), dlg( 0 ) {
}
void KRPleaseWaitHandler::stopWait(){
if( dlg != 0 ) delete dlg;
dlg=0;
cycleMutex=incMutex=false;
// return cursor to normal arrow
krApp->setCursor(KCursor::arrowCursor());
}
void KRPleaseWaitHandler::startWaiting( QString msg, int count , bool cancel){
if ( dlg == 0 ){
dlg = new KRPleaseWait( msg , count, cancel);
connect( dlg,SIGNAL(cancelled()),this,SLOT(killJob()) );
}
incMutex=cycleMutex=_wasCancelled=false;
dlg->setProgress(0);
dlg->setLabelText(msg);
if ( count == 0) {
dlg->setTotalSteps(10);
cycle = true ;
cycleProgress();
}
else {
dlg->setTotalSteps(count);
cycle = false;
}
}
void KRPleaseWaitHandler::cycleProgress(){
if (cycleMutex) return;
cycleMutex=true;
if (dlg) dlg->cycleProgress();
if (cycle) QTimer::singleShot(2000,this,SLOT(cycleProgress()));
cycleMutex=false;
}
void KRPleaseWaitHandler::killJob(){
if( !job.isNull() ) job->kill(false);
stopWait();
_wasCancelled = true;
}
void KRPleaseWaitHandler::setJob(KIO::Job* j){ job=j; }
void KRPleaseWaitHandler::incProgress(int i){
if (incMutex) return;
incMutex=true;
if(dlg) dlg->incProgress(i);
incMutex=false;
}
void KRPleaseWaitHandler::incProgress( KProcess *, char *buffer, int buflen ) {
int howMuch = 0;
for ( int i = 0 ; i < buflen; ++i )
if ( buffer[ i ] == '\n' )
++howMuch;
incProgress( howMuch );
}
#include "krpleasewait.moc"
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