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Diffstat (limited to 'kitchensync/src/kwidgetlist.cpp')
| -rw-r--r-- | kitchensync/src/kwidgetlist.cpp | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/kitchensync/src/kwidgetlist.cpp b/kitchensync/src/kwidgetlist.cpp new file mode 100644 index 000000000..450a719e8 --- /dev/null +++ b/kitchensync/src/kwidgetlist.cpp @@ -0,0 +1,305 @@ +/* + This file is part of KitchenSync. + + Copyright (c) 2005 Tobias Koenig <tokoe@kde.org> + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + This library 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public License + along with this library; see the file COPYING.LIB. If not, write to + the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + Boston, MA 02110-1301, USA. +*/ + +#include <qvbox.h> + +#include <kglobalsettings.h> + +#include "kwidgetlist.h" + +class KWidgetList::Private +{ + public: + Private() + : mSelectedItem( 0 ) + { + } + + QValueList<KWidgetListItem*> mItems; + KWidgetListItem *mSelectedItem; + QVBox *mBox; +}; + +KWidgetList::KWidgetList( QWidget *parent, const char *name ) + : QScrollView( parent, name ), + d( new Private ) +{ + d->mBox = new QVBox( viewport() ); + addChild( d->mBox ); + + setResizePolicy( AutoOneFit ); + setFocusPolicy( QWidget::StrongFocus ); + + viewport()->setFocus(); +} + +KWidgetList::~KWidgetList() +{ + clear(); + + delete d; + d = 0; +} + +uint KWidgetList::count() const +{ + return d->mItems.count(); +} + +void KWidgetList::appendItem( KWidgetListItem *item ) +{ + if ( !item ) + return; + + if ( !d->mItems.contains( item ) ) { + d->mItems.append( item ); + item->reparent( d->mBox, 0, QPoint( 0, 0 ), true ); + item->setSelected( false ); + item->installEventFilter( this ); + + if ( d->mItems.count() == 1 ) { + d->mSelectedItem = item; + } else { + if ( !d->mSelectedItem ) + setSelected( item ); + else + d->mSelectedItem->setSelected( true ); + } + } +} + +void KWidgetList::removeItem( int index ) +{ + if ( index < 0 || index >= (int)d->mItems.count() ) + return; + + KWidgetListItem *item = d->mItems[ index ]; + d->mItems.remove( item ); + + if ( d->mSelectedItem == item ) { + // TODO: smarter selection + if ( !d->mItems.isEmpty() ) + setSelected( d->mItems.first() ); + else + d->mSelectedItem = 0; + } + + delete item; + + if ( d->mItems.count() == 1 ) + d->mItems.first()->setSelected( false ); +} + +void KWidgetList::takeItem( KWidgetListItem *item ) +{ + d->mItems.remove( item ); + item->reparent( 0, 0, QPoint( 0, 0 ) ); + item->removeEventFilter( this ); + item->hide(); + + if ( d->mSelectedItem == item ) { + // TODO: smarter selection + if ( !d->mItems.isEmpty() ) + setSelected( d->mItems.first() ); + else + d->mSelectedItem = 0; + } +} + +void KWidgetList::setSelected( KWidgetListItem *item ) +{ + if ( !item ) + return; + + if ( d->mItems.contains( item ) == 0 ) + return; + + if ( d->mSelectedItem ) + d->mSelectedItem->setSelected( false ); + + item->setSelected( true ); + d->mSelectedItem = item; +} + +void KWidgetList::setSelected( int index ) +{ + setSelected( item( index ) ); +} + +bool KWidgetList::isSelected( KWidgetListItem *item ) const +{ + return ( d->mSelectedItem == item ); +} + +bool KWidgetList::isSelected( int index ) const +{ + return isSelected( item( index ) ); +} + +KWidgetListItem *KWidgetList::selectedItem() const +{ + return d->mSelectedItem; +} + +KWidgetListItem *KWidgetList::item( int index ) const +{ + if ( index < 0 || index >= (int)d->mItems.count() ) + return 0; + else + return d->mItems[ index ]; +} + +int KWidgetList::index( KWidgetListItem *item ) const +{ + return d->mItems.findIndex( item ); +} + +void KWidgetList::clear() +{ + QValueList<KWidgetListItem*>::Iterator it; + for ( it = d->mItems.begin(); it != d->mItems.end(); ++it ) + delete *it; + + d->mItems.clear(); + + d->mSelectedItem = 0; +} + +void KWidgetList::setFocus() +{ + viewport()->setFocus(); +} + +bool KWidgetList::eventFilter( QObject *object, QEvent *event ) +{ + if ( event->type() == QEvent::MouseButtonPress ) { + QMouseEvent *mouseEvent = static_cast<QMouseEvent*>( event ); + if ( mouseEvent->button() & LeftButton ) { + QValueList<KWidgetListItem*>::Iterator it; + for ( it = d->mItems.begin(); it != d->mItems.end(); ++it ) { + if ( *it == object ) { + if ( d->mItems.count() != 1 ) { + setSelected( *it ); + emit selectionChanged( *it ); + } + return true; + } + } + } + } else if ( event->type() == QEvent::MouseButtonDblClick ) { + QValueList<KWidgetListItem*>::Iterator it; + for ( it = d->mItems.begin(); it != d->mItems.end(); ++it ) { + if ( *it == object ) { + if ( d->mItems.count() != 1 ) { + setSelected( *it ); + emit doubleClicked( *it ); + } + return true; + } + } + } else if ( event->type() == QEvent::KeyPress ) { + QKeyEvent *keyEvent = static_cast<QKeyEvent*>( event ); + if ( keyEvent->key() == Qt::Key_Up ) { + if ( d->mSelectedItem == 0 ) { + if ( !d->mItems.isEmpty() ) { + setSelected( d->mItems.first() ); + return true; + } + } + + for ( int i = 0; i < (int)d->mItems.count(); ++i ) { + if ( d->mItems[ i ] == d->mSelectedItem ) { + if ( ( i - 1 ) >= 0 ) { + setSelected( d->mItems[ i - 1 ] ); + return true; + } + } + } + return true; + } else if ( keyEvent->key() == Qt::Key_Down ) { + if ( d->mSelectedItem == 0 ) { + if ( !d->mItems.isEmpty() ) { + setSelected( d->mItems.last() ); + return true; + } + } + + for ( int i = 0; i < (int)d->mItems.count(); ++i ) + if ( d->mItems[ i ] == d->mSelectedItem ) { + if ( ( i + 1 ) < (int)d->mItems.count() ) { + setSelected( d->mItems[ i + 1 ] ); + return true; + } + } + return true; + } + } + + return QScrollView::eventFilter( object, event ); +} + +KWidgetListItem::KWidgetListItem( KWidgetList *parent, const char *name ) + : QWidget( parent, name ) +{ + mForegroundColor = KGlobalSettings::textColor(); + mBackgroundColor = KGlobalSettings::baseColor(); + mSelectionForegroundColor = KGlobalSettings::highlightedTextColor(); + mSelectionBackgroundColor = KGlobalSettings::highlightColor(); + + setFocusPolicy( QWidget::StrongFocus ); +} + +KWidgetListItem::~KWidgetListItem() +{ +} + +void KWidgetListItem::setSelected( bool select ) +{ + if ( select ) { + setPaletteForegroundColor( mSelectionForegroundColor ); + setPaletteBackgroundColor( mSelectionBackgroundColor ); + } else { + setPaletteForegroundColor( mForegroundColor ); + setPaletteBackgroundColor( mBackgroundColor ); + } +} + +void KWidgetListItem::setForegroundColor( const QColor &color ) +{ + mForegroundColor = color; +} + +void KWidgetListItem::setBackgroundColor( const QColor &color ) +{ + mBackgroundColor = color; +} + +void KWidgetListItem::setSelectionForegroundColor( const QColor &color ) +{ + mSelectionForegroundColor = color; +} + +void KWidgetListItem::setSelectionBackgroundColor( const QColor &color ) +{ + mSelectionBackgroundColor = color; +} + +#include "kwidgetlist.moc" |