/*************************************************************************** krcalcspacedialog.cpp - description ------------------- begin : Fri Jan 2 2004 copyright : (C) 2004 by Shie Erlich & Rafi Yanai e-mail : krusader@users.sourceforge.net web site : http://krusader.sourceforge.net --------------------------------------------------------------------------- Description *************************************************************************** A db dD d8888b. db db .d8888. .d8b. d8888b. d88888b d8888b. 88 ,8P' 88 `8D 88 88 88' YP d8' `8b 88 `8D 88' 88 `8D 88,8P 88oobY' 88 88 `8bo. 88ooo88 88 88 88ooooo 88oobY' 88`8b 88`8b 88 88 `Y8b. 88~~~88 88 88 88~~~~~ 88`8b 88 `88. 88 `88. 88b d88 db 8D 88 88 88 .8D 88. 88 `88. YP YD 88 YD ~Y8888P' `8888Y' YP YP Y8888D' Y88888P 88 YD 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. * * * ***************************************************************************/ // TQt Includes #include #include #include // TDE Includes #include #include // Krusader Includes #include "krcalcspacedialog.h" #include "listpanel.h" #include "panelfunc.h" #include "../krusader.h" #include "../VFS/krpermhandler.h" /* --=={ Patch by Heiner }==-- */ KrCalcSpaceDialog::CalcThread::CalcThread(KrCalcSpaceDialog * parent, ListPanel * panel, const TQStringList & items) : m_totalSize(0), m_currentSize(0), m_totalFiles(0), m_totalDirs(0), m_items(items), m_files(panel->func->files()), m_view(panel->view), m_parent(parent), m_threadInUse(true), m_stop(false) {} void KrCalcSpaceDialog::CalcThread::cleanUp(){ if (m_threadInUse || !finished()) m_synchronizeUsageAccess.unlock(); else{ m_synchronizeUsageAccess.unlock(); // prevents a resource leak // otherwise: no one needs this instance any more: delete it delete this; } } void KrCalcSpaceDialog::CalcThread::deleteInstance(){ // synchronize to avoid race condition. m_synchronizeUsageAccess.lock(); m_threadInUse = false; cleanUp(); } void KrCalcSpaceDialog::CalcThread::run(){ if ( !m_items.isEmpty() ) // if something to do: do the calculation for ( TQStringList::ConstIterator it = m_items.begin(); it != m_items.end(); ++it ) { m_currentSize = 0; m_files->vfs_calcSpace( *it, &m_currentSize, &m_totalFiles, &m_totalDirs , & m_stop); if (m_stop) break; KrDetailedViewItem * viewItem = dynamic_cast(m_view->findItemByName ( *it ) ); if (viewItem){ KrCalcSpaceDialog::setDirSize(viewItem, m_currentSize); //viewItem->repaintItem(); // crash in KrDetailedViewItem::repaintItem(): setPixmap(_view->column(KrDetailedView::Name),KrView::getIcon(_vf)) } m_totalSize += m_currentSize; m_currentSize = 0; } // synchronize to avoid race condition. m_synchronizeUsageAccess.lock(); cleanUp(); // this does not need the instance any more } void KrCalcSpaceDialog::CalcThread::stop(){ // cancel was pressed m_stop = true; } KrCalcSpaceDialog::KrCalcSpaceDialog(TQWidget *parent, ListPanel * files, const TQStringList & items, bool autoclose) : KDialogBase(parent, "KrCalcSpaceDialog", true, i18n("Calculate Occupied Space"), Ok|Cancel), m_autoClose(autoclose), m_canceled(false), m_timerCounter(0){ // the dialog: The Ok button is hidden until it is needed showButtonOK(false); m_thread = new CalcThread(this, files, items); m_pollTimer = new TQTimer(this); TQWidget * mainWidget = new TQWidget( this ); setMainWidget(mainWidget); TQVBoxLayout *topLayout = new TQVBoxLayout( mainWidget, 0, spacingHint() ); m_label = new TQLabel( "", mainWidget, "caption" ); showResult(); // fill m_label with something usefull topLayout->addWidget( m_label ); topLayout->addStretch(10); } void KrCalcSpaceDialog::calculationFinished(){ // close dialog if auto close is true if (m_autoClose){ done(0); return; } // otherwise hide cancel and show ok button showButtonCancel(false); showButtonOK(true); showResult(); // and show final result } /* This timer has two jobs: it polls the thread if it is finished. Polling is better here as it might finish while the dialog builds up. Secondly it refreshes the displayed result. */ void KrCalcSpaceDialog::timer(){ // thread finished? if (m_thread->finished()){ // close dialog or switch buttons calculationFinished(); m_pollTimer->stop(); // stop the polling. No longer needed return; } // Every 10 pollings (1 second) refresh the displayed result if (++m_timerCounter > 10){ m_timerCounter = 0; showResult(); } } void KrCalcSpaceDialog::showResult(){ if (!m_thread) return; TQString msg; TQString fileName = ( ( m_thread->getItems().count() == 1 ) ? ( i18n( "Name: " ) + m_thread->getItems().first() + "\n" ) : TQString( "" ) ); msg = fileName + i18n( "Total occupied space: %1").arg( TDEIO::convertSize( m_thread->getTotalSize() ) ); if (m_thread->getTotalSize() >= 1024) msg += " (" + KRpermHandler::parseSize( m_thread->getTotalSize() ) + "bytes)"; msg += "\n"; msg += i18n("in %n directory", "in %n directories", m_thread->getTotalDirs() ); msg += " "; msg += i18n("and %n file", "and %n files", m_thread->getTotalFiles() ); m_label->setText(msg); } void KrCalcSpaceDialog::slotCancel(){ m_thread->stop(); // notify teh thread to stop m_canceled = true; // set the cancel flag KDialogBase::slotCancel(); // close the dialog } KrCalcSpaceDialog::~KrCalcSpaceDialog(){ CalcThread * tmp = m_thread; m_thread = 0; // do not access the thread anymore or core dump if smoe piece of code wrongly does tmp->deleteInstance(); // Notify the thread, that the dialog does not need anymore. } void KrCalcSpaceDialog::exec(){ m_thread->start(); // start the thread if (m_autoClose){ // autoclose // set the cursor to busy mode and wait 3 seconds or until the thread finishes krApp->setCursor( KCursor::waitCursor() ); bool result = m_thread->wait(3000); krApp->setCursor( KCursor::arrowCursor() ); // return the cursor to normal mode if (result) return;// thread finished: do not show the dialog showResult(); // fill the invisible dialog with usefull data } // prepare and start the poll timer connect(m_pollTimer, TQ_SIGNAL(timeout()), this, TQ_SLOT(timer())); m_pollTimer->start(100); KDialogBase::exec(); // show the dialog } /* --=={ End of patch by Heiner }==-- */ #include "krcalcspacedialog.moc"