certmanager/lib Library API Documentation

progressbar.cpp

00001 /*
00002     progressbar.cpp
00003 
00004     This file is part of libkleopatra, the KDE keymanagement library
00005     Copyright (c) 2004 Klarälvdalens Datakonsult AB
00006 
00007     Libkleopatra is free software; you can redistribute it and/or
00008     modify it under the terms of the GNU General Public License as
00009     published by the Free Software Foundation; either version 2 of the
00010     License, or (at your option) any later version.
00011 
00012     Libkleopatra is distributed in the hope that it will be useful,
00013     but WITHOUT ANY WARRANTY; without even the implied warranty of
00014     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015     General Public License for more details.
00016 
00017     You should have received a copy of the GNU General Public License
00018     along with this program; if not, write to the Free Software
00019     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00020 
00021     In addition, as a special exception, the copyright holders give
00022     permission to link the code of this program with any edition of
00023     the Qt library by Trolltech AS, Norway (or with modified versions
00024     of Qt that use the same license as Qt), and distribute linked
00025     combinations including the two.  You must obey the GNU General
00026     Public License in all respects for all of the code used other than
00027     Qt.  If you modify this file, you may extend this exception to
00028     your version of the file, but you are not obligated to do so.  If
00029     you do not wish to do so, delete this exception statement from
00030     your version.
00031 */
00032 
00033 #include "progressbar.h"
00034 
00035 #include <qtimer.h>
00036 
00037 static const int busyTimerTickInterval = 100;
00038 static const int busyTimerTickIncrement = 5;
00039 
00040 Kleo::ProgressBar::ProgressBar( QWidget * parent, const char * name, WFlags f )
00041   : QProgressBar( 0, parent, name, f ),
00042     mRealProgress( -1 )
00043 {
00044   mBusyTimer = new QTimer( this );
00045   connect( mBusyTimer, SIGNAL(timeout()), SLOT(slotBusyTimerTick()) );
00046   fixup( true );
00047 }
00048 
00049 void Kleo::ProgressBar::slotProgress( const QString &, int cur, int tot ) {
00050   setProgress( cur, tot );
00051 }
00052 
00053 void Kleo::ProgressBar::slotProgress( const QString &, int, int cur, int tot ) {
00054   setProgress( cur, tot );
00055 }
00056 
00057 void Kleo::ProgressBar::setTotalSteps( int total ) {
00058   qDebug( "Kleo::ProgressBar::setTotalSteps( %d )", total );
00059   if ( total == totalSteps() )
00060     return;
00061   QProgressBar::setTotalSteps( 0 );
00062   fixup( false );
00063 }
00064 
00065 void Kleo::ProgressBar::setProgress( int p ) {
00066   qDebug( "Kleo::ProgressBar::setProgress( %d )", p );
00067   mRealProgress = p;
00068   fixup( true );
00069 }
00070 
00071 void Kleo::ProgressBar::reset() {
00072   mRealProgress = -1;
00073   fixup( true );
00074 }
00075 
00076 void Kleo::ProgressBar::slotBusyTimerTick() {
00077   fixup( false );
00078   if ( mBusyTimer->isActive() )
00079     QProgressBar::setProgress( QProgressBar::progress() + busyTimerTickIncrement );
00080 }
00081 
00082 void Kleo::ProgressBar::fixup( bool newValue ) {
00083   const int cur = QProgressBar::progress();
00084   const int tot = QProgressBar::totalSteps();
00085 
00086   qDebug( "Kleo::ProgressBar::startStopBusyTimer() cur = %d; tot = %d; real = %d",
00087       cur, tot, mRealProgress );
00088 
00089   if ( ( newValue && mRealProgress < 0 ) || ( !newValue && cur < 0 ) ) {
00090     qDebug( "(new value) switch to reset" );
00091     mBusyTimer->stop();
00092     if ( newValue )
00093       QProgressBar::reset();
00094     mRealProgress = -1;
00095   } else if ( tot == 0 ) {
00096     qDebug( "(new value) switch or stay in busy" );
00097     if ( !mBusyTimer->isActive() ) {
00098       mBusyTimer->start( busyTimerTickInterval );
00099       if ( newValue )
00100     QProgressBar::setProgress( mRealProgress );
00101     }
00102   } else {
00103     qDebug( "(new value) normal progress" );
00104     mBusyTimer->stop();
00105     if ( QProgressBar::progress() != mRealProgress )
00106       QProgressBar::setProgress( mRealProgress );
00107   }
00108 }
00109 
00110 #include "progressbar.moc"
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This file is part of the documentation for certmanager/lib Library Version 3.3.2.
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