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Diffstat (limited to 'src/scanstack.cpp')
| -rw-r--r-- | src/scanstack.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/src/scanstack.cpp b/src/scanstack.cpp new file mode 100644 index 0000000..7a49900 --- /dev/null +++ b/src/scanstack.cpp @@ -0,0 +1,194 @@ +/*************************************************************************** + * * + * Copyright (C) 2005, 2006 by Kevin Gilbert * + * kev.gilbert@cdu.edu.au * + * * + * 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., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + * * + ***************************************************************************/ + +#include <qdict.h> + +#include <kdebug.h> +#include <klocale.h> + +#include "htmlwidget.h" +#include "scanstack.h" +#include "scanwidget.h" + +// constructor +// =========== + +ScanStack::ScanStack( QWidget* parent, const char* name ) +: QWidgetStack( parent, name ), + m_dictSize( 29 ), + m_firstScanWidget( NULL ), + m_widgetId( 1 ) +{ m_scanWidgetDict = new QDict<ScanWidget>( m_dictSize ); + m_scanWidgetDict->setAutoDelete( true ); +} + +// appendAndRaiseWidget +// ==================== + +void ScanStack::appendAndRaiseWidget( ScanWidget* scanWidget ) +{ addWidget( scanWidget, m_widgetId ); + raiseWidget( m_widgetId ); + m_widgetId++; + + if( m_firstScanWidget == NULL ) + m_firstScanWidget = scanWidget; + + ushort index = m_scanWidgetDict->count( ); + + if( index == m_dictSize ) + { m_dictSize *= 2; // yes - i know it's supposed to be prime! + m_scanWidgetDict->resize( m_dictSize ); + } + + m_scanWidgetDict->insert( QString::number( index ), scanWidget ); +} + +// appendHTMLWidget +// ================ + +void ScanStack::appendHTMLWidget( HTMLWidget* htmlWidget ) +{ ASSERT( m_widgetId == 1 ); + addWidget( (QWidget*) htmlWidget, m_widgetId++ ); +} + +// findScanWidget +// ============== + +short ScanStack::findScanWidget( const ScanWidget* scanWidget ) +{ ushort i; + + for( resetScanWidgets( i ); moreScanWidgets( i ); nextScanWidget( i )) + if( scanWidget == currentScanWidget( i )) + return i; + + return -1; +} + +// indexOfVisibleScanWidget +// ======================== + +short ScanStack::indexOfVisibleScanWidget( ) +{ ushort i; + + for( resetScanWidgets( i ); moreScanWidgets( i ); nextScanWidget( i )) + if( isVisibleWidget( currentScanWidget( i ))) + break; + + if( !moreScanWidgets( i )) + { ASSERT( false ); + return -1; + } + + return i; +} + +// makeScanWidgetVisible +// ===================== + +ScanWidget* ScanStack::makeScanWidgetVisible( const ushort index ) +{ ScanWidget* current = scanWidget( index ); + + if( current == NULL ) + ASSERT( false ); + else + { current->ignoreTabChanges( true ); + raiseWidget( current ); + current->ignoreTabChanges( false ); + } + + return current; +} + +// moveScanWidget +// ============== + +ScanWidget* ScanStack::moveScanWidget( const ushort fromIndex ) +{ short toIndex = indexOfVisibleScanWidget( ); + + if( toIndex < 0 ) + return NULL; + + ScanWidget* scanWidget = m_scanWidgetDict->take( QString::number( fromIndex )); + + if( fromIndex < toIndex ) + for( ushort index = fromIndex + 1; index <= toIndex; index++ ) + { ScanWidget* scanWidget = m_scanWidgetDict->take( QString::number( index )); + m_scanWidgetDict->insert( QString::number( index - 1 ), scanWidget ); + } + else + for( short index = fromIndex - 1; index >= toIndex; index-- ) + { ScanWidget* scanWidget = m_scanWidgetDict->take( QString::number( index )); + m_scanWidgetDict->insert( QString::number( index + 1 ), scanWidget ); + } + + m_scanWidgetDict->insert( QString::number( toIndex ), scanWidget ); + return scanWidget; +} + +// removeScanWidget +// ================ + +void ScanStack::removeScanWidget( ScanWidget* scanWidgetToRemove ) +{ ushort n = m_scanWidgetDict->count( ); + + if( n == 1 ) + return; + + short index = findScanWidget( scanWidgetToRemove ); + + if( index < 0 ) + { ASSERT( false ); + return; + } + + m_scanWidgetDict->remove( QString::number( index )); + + for( ushort i = index + 1; i < n; i++ ) + { ScanWidget* scanWidget = m_scanWidgetDict->take( QString::number( i )); + m_scanWidgetDict->insert( QString::number( i - 1 ), scanWidget ); + } + + if( index >=short( m_scanWidgetDict->count( ))) + index = m_scanWidgetDict->count( ) - 1; + + ScanWidget* newVisibleWidget = scanWidget( index ); + newVisibleWidget->ignoreTabChanges( true ); + raiseWidget( newVisibleWidget ); + newVisibleWidget->ignoreTabChanges( false ); +} + +// visibleWidget +// ============= + +ScanWidget* ScanStack::visibleWidget( ) +{ return (ScanWidget*) QWidgetStack::visibleWidget( ); +} + +// wrapText +// ======== + +void ScanStack::wrapText( const bool wrap ) +{ ushort i; + + for( resetScanWidgets( i ); moreScanWidgets( i ); nextScanWidget( i )) + currentScanWidget( i )->wrapText( wrap ); +} |