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Diffstat (limited to 'kdeui/klistbox.cpp')
| -rw-r--r-- | kdeui/klistbox.cpp | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/kdeui/klistbox.cpp b/kdeui/klistbox.cpp new file mode 100644 index 000000000..e32418149 --- /dev/null +++ b/kdeui/klistbox.cpp @@ -0,0 +1,266 @@ +/* This file is part of the KDE libraries + Copyright (C) 2000 Reginald Stadlbauer <reggie@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 version 2 as published by the Free Software Foundation. + + 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 "config.h" + +#include <qtimer.h> + +#include <kglobalsettings.h> +#include <kcursor.h> +#include <kapplication.h> +#include <kipc.h> +#include <kdebug.h> + +#include "klistbox.h" + +KListBox::KListBox( QWidget *parent, const char *name, WFlags f ) + : QListBox( parent, name, f ), d(0) +{ + connect( this, SIGNAL( onViewport() ), + this, SLOT( slotOnViewport() ) ); + connect( this, SIGNAL( onItem( QListBoxItem * ) ), + this, SLOT( slotOnItem( QListBoxItem * ) ) ); + slotSettingsChanged(KApplication::SETTINGS_MOUSE); + if (kapp) + { + connect( kapp, SIGNAL( settingsChanged(int) ), SLOT( slotSettingsChanged(int) ) ); + kapp->addKipcEventMask( KIPC::SettingsChanged ); + } + + m_pCurrentItem = 0L; + + m_pAutoSelect = new QTimer( this ); + connect( m_pAutoSelect, SIGNAL( timeout() ), + this, SLOT( slotAutoSelect() ) ); +} + +void KListBox::slotOnItem( QListBoxItem *item ) +{ + if ( item && m_bChangeCursorOverItem && m_bUseSingle ) + viewport()->setCursor( KCursor().handCursor() ); + + if ( item && (m_autoSelectDelay > -1) && m_bUseSingle ) { + m_pAutoSelect->start( m_autoSelectDelay, true ); + m_pCurrentItem = item; + } +} + +void KListBox::slotOnViewport() +{ + if ( m_bChangeCursorOverItem ) + viewport()->unsetCursor(); + + m_pAutoSelect->stop(); + m_pCurrentItem = 0L; +} + + +void KListBox::slotSettingsChanged(int category) +{ + if (category != KApplication::SETTINGS_MOUSE) + return; + m_bUseSingle = KGlobalSettings::singleClick(); + + disconnect( this, SIGNAL( mouseButtonClicked( int, QListBoxItem *, + const QPoint & ) ), + this, SLOT( slotMouseButtonClicked( int, QListBoxItem *, + const QPoint & ) ) ); +// disconnect( this, SIGNAL( doubleClicked( QListBoxItem *, +// const QPoint & ) ), +// this, SLOT( slotExecute( QListBoxItem *, +// const QPoint & ) ) ); + + if( m_bUseSingle ) + { + connect( this, SIGNAL( mouseButtonClicked( int, QListBoxItem *, + const QPoint & ) ), + this, SLOT( slotMouseButtonClicked( int, QListBoxItem *, + const QPoint & ) ) ); + } + else + { +// connect( this, SIGNAL( doubleClicked( QListBoxItem *, +// const QPoint & ) ), +// this, SLOT( slotExecute( QListBoxItem *, +// const QPoint & ) ) ); + } + + m_bChangeCursorOverItem = KGlobalSettings::changeCursorOverIcon(); + m_autoSelectDelay = KGlobalSettings::autoSelectDelay(); + + if( !m_bUseSingle || !m_bChangeCursorOverItem ) + viewport()->unsetCursor(); +} + +void KListBox::slotAutoSelect() +{ + // check that the item still exists + if( index( m_pCurrentItem ) == -1 ) + return; + + //Give this widget the keyboard focus. + if( !hasFocus() ) + setFocus(); + + ButtonState keybstate = KApplication::keyboardMouseState(); + + QListBoxItem* previousItem = item( currentItem() ); + setCurrentItem( m_pCurrentItem ); + + if( m_pCurrentItem ) { + //Shift pressed? + if( (keybstate & ShiftButton) ) { + bool block = signalsBlocked(); + blockSignals( true ); + + //No Ctrl? Then clear before! + if( !(keybstate & ControlButton) ) + clearSelection(); + + bool select = !m_pCurrentItem->isSelected(); + bool update = viewport()->isUpdatesEnabled(); + viewport()->setUpdatesEnabled( false ); + + bool down = index( previousItem ) < index( m_pCurrentItem ); + QListBoxItem* it = down ? previousItem : m_pCurrentItem; + for (;it ; it = it->next() ) { + if ( down && it == m_pCurrentItem ) { + setSelected( m_pCurrentItem, select ); + break; + } + if ( !down && it == previousItem ) { + setSelected( previousItem, select ); + break; + } + setSelected( it, select ); + } + + blockSignals( block ); + viewport()->setUpdatesEnabled( update ); + triggerUpdate( false ); + + emit selectionChanged(); + + if( selectionMode() == QListBox::Single ) + emit selectionChanged( m_pCurrentItem ); + } + else if( (keybstate & ControlButton) ) + setSelected( m_pCurrentItem, !m_pCurrentItem->isSelected() ); + else { + bool block = signalsBlocked(); + blockSignals( true ); + + if( !m_pCurrentItem->isSelected() ) + clearSelection(); + + blockSignals( block ); + + setSelected( m_pCurrentItem, true ); + } + } + else + kdDebug() << "Thatīs not supposed to happen!!!!" << endl; +} + +void KListBox::emitExecute( QListBoxItem *item, const QPoint &pos ) +{ + ButtonState keybstate = KApplication::keyboardMouseState(); + + m_pAutoSelect->stop(); + + //Donīt emit executed if in SC mode and Shift or Ctrl are pressed + if( !( m_bUseSingle && ((keybstate & ShiftButton) || (keybstate & ControlButton)) ) ) { + emit executed( item ); + emit executed( item, pos ); + } +} + +// +// 2000-16-01 Espen Sand +// This widget is used in dialogs. It should ignore +// F1 (and combinations) and Escape since these are used +// to start help or close the dialog. This functionality +// should be done in QListView but it is not (at least now) +// +void KListBox::keyPressEvent(QKeyEvent *e) +{ + if( e->key() == Key_Escape ) + { + e->ignore(); + } + else if( e->key() == Key_F1 ) + { + e->ignore(); + } + else + { + QListBox::keyPressEvent(e); + } +} + +void KListBox::focusOutEvent( QFocusEvent *fe ) +{ + m_pAutoSelect->stop(); + + QListBox::focusOutEvent( fe ); +} + +void KListBox::leaveEvent( QEvent *e ) +{ + m_pAutoSelect->stop(); + + QListBox::leaveEvent( e ); +} + +void KListBox::contentsMousePressEvent( QMouseEvent *e ) +{ + if( (selectionMode() == Extended) && (e->state() & ShiftButton) && !(e->state() & ControlButton) ) { + bool block = signalsBlocked(); + blockSignals( true ); + + clearSelection(); + + blockSignals( block ); + } + + QListBox::contentsMousePressEvent( e ); +} + +void KListBox::contentsMouseDoubleClickEvent ( QMouseEvent * e ) +{ + QListBox::contentsMouseDoubleClickEvent( e ); + + QListBoxItem* item = itemAt( contentsToViewport( e->pos() ) ); + + if( item ) { + emit doubleClicked( item, e->globalPos() ); + + if( (e->button() == LeftButton) && !m_bUseSingle ) + emitExecute( item, e->globalPos() ); + } +} + +void KListBox::slotMouseButtonClicked( int btn, QListBoxItem *item, const QPoint &pos ) +{ + if( (btn == LeftButton) && item ) + emitExecute( item, pos ); +} + +void KListBox::virtual_hook( int, void* ) +{ /*BASE::virtual_hook( id, data );*/ } + +#include "klistbox.moc" |