1 files changed, 408 insertions, 0 deletions

diff --git a/libopie2/qt3/opieui/ocompletionbox.cpp b/libopie2/qt3/opieui/ocompletionbox.cpp
new file mode 100644
index 0000000..b594b8e
--- a/dev/null
+++ b/libopie2/qt3/opieui/ocompletionbox.cpp
@@ -0,0 +1,408 @@
+/*
+  This file                  Copyright (C) 2003 Michael 'Mickey' Lauer <mickey@tm.informatik.uni-frankfurt.de>
+    is part of the           Copyright (C) 2000,2001 Carsten Pfeiffer <pfeiffer@kde.org>
+       Opie Project          Copyright (C) 2000 Stefan Schimanski <1Stein@gmx.de>
+                             Copyright (C) 2000,2001 Dawit Alemayehu <adawit@kde.org>
+              =.
+            .=l.             Originally part of the KDE Project
+           .>+-=
+ _;:,     .>    :=|.         This program is free software; you can
+.> <`_,   >  .   <=          redistribute it and/or  modify it under
+:`=1 )Y*s>-.--   :           the terms of the GNU Library General Public
+.="- .-=="i,     .._         License as published by the Free Software
+ - .   .-<_>     .<>         Foundation; either version 2 of the License,
+     ._= =}       :          or (at your option) any later version.
+    .%`+i>       _;_.
+    .i_,=:_.      -<s.       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
+..}^=.=       =       ;      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., 59 Temple Place - Suite 330,
+                             Boston, MA 02111-1307, USA.
+
+*/
+
+#include <qapplication.h>
+#include <qevent.h>
+#include <qstyle.h>
+
+#include <opie2/ocompletionbox.h>
+
+#define OListBox QListBox
+
+class OCompletionBox::OCompletionBoxPrivate
+{
+public:
+    QWidget *m_parent; // necessary to set the focus back
+    QString cancelText;
+    bool tabHandling;
+    bool down_workaround;
+};
+
+OCompletionBox::OCompletionBox( QWidget *parent, const char *name )
+    :OListBox( parent, name, WType_Popup )
+{
+    d = new OCompletionBoxPrivate;
+    d->m_parent        = parent;
+    d->tabHandling     = true;
+    d->down_workaround = false;
+
+    setColumnMode( 1 );
+    setLineWidth( 1 );
+    setFrameStyle( QFrame::Box | QFrame::Plain );
+
+    if ( parent )
+        setFocusProxy( parent );
+    else
+        setFocusPolicy( NoFocus );
+
+    setVScrollBarMode( Auto );
+    setHScrollBarMode( AlwaysOff );
+
+    connect( this, SIGNAL( doubleClicked( QListBoxItem * )),
+             SLOT( slotActivated( QListBoxItem * )) );
+
+    // grmbl, just QListBox workarounds :[ Thanks Volker.
+    connect( this, SIGNAL( currentChanged( QListBoxItem * )),
+             SLOT( slotCurrentChanged() ));
+    connect( this, SIGNAL( clicked( QListBoxItem * )),
+             SLOT( slotItemClicked( QListBoxItem * )) );
+}
+
+OCompletionBox::~OCompletionBox()
+{
+    d->m_parent = 0L;
+    delete d;
+}
+
+QStringList OCompletionBox::items() const
+{
+    QStringList list;
+    for ( uint i = 0; i < count(); i++ ) {
+        list.append( text( i ) );
+    }
+    return list;
+}
+
+void OCompletionBox::slotActivated( QListBoxItem *item )
+{
+    if ( !item )
+        return;
+
+    hide();
+    emit activated( item->text() );
+}
+
+bool OCompletionBox::eventFilter( QObject *o, QEvent *e )
+{
+    int type = e->type();
+
+    if ( o == d->m_parent ) {
+        if ( isVisible() ) {
+            if ( type == QEvent::KeyPress ) {
+                QKeyEvent *ev = static_cast<QKeyEvent *>( e );
+                switch ( ev->key() ) {
+                    case Key_BackTab:
+                        if ( d->tabHandling ) {
+                            up();
+                            ev->accept();
+                            return true;
+                        }
+                        break;
+                    case Key_Tab:
+                        if ( d->tabHandling ) {
+                            down(); // Only on TAB!!
+                            ev->accept();
+                            return true;
+                        }
+                        break;
+                    case Key_Down:
+                        down();
+                        ev->accept();
+                        return true;
+                    case Key_Up:
+                        up();
+                        ev->accept();
+                        return true;
+                    case Key_Prior:
+                        pageUp();
+                        ev->accept();
+                        return true;
+                    case Key_Next:
+                        pageDown();
+                        ev->accept();
+                        return true;
+                    case Key_Escape:
+                        cancelled();
+                        ev->accept();
+                        return true;
+                    case Key_Enter:
+                    case Key_Return:
+                        if ( ev->state() & ShiftButton ) {
+                            hide();
+                            ev->accept();  // Consume the Enter event
+                            return true;
+                        }
+                        break;
+                    default:
+                        break;
+                }
+            }
+            else if ( type == QEvent::AccelOverride ) {
+                // Override any acceleartors that match
+                // the key sequences we use here...
+                QKeyEvent *ev = static_cast<QKeyEvent *>( e );
+                switch ( ev->key() ) {
+                    case Key_Tab:
+                    case Key_BackTab:
+                    case Key_Down:
+                    case Key_Up:
+                    case Key_Prior:
+                    case Key_Next:
+                    case Key_Escape:
+                    case Key_Enter:
+                    case Key_Return:
+                      ev->accept();
+                      return true;
+                      break;
+                    default:
+                        break;
+                }
+            }
+
+            // parent loses focus or gets a click -> we hide
+            else if ( type == QEvent::FocusOut || type == QEvent::Resize ||
+                      type == QEvent::Close || type == QEvent::Hide ||
+                      type == QEvent::Move ) {
+                hide();
+            }
+            else if ( type == QEvent::Move )
+                move( d->m_parent->mapToGlobal(QPoint(0, d->m_parent->height())));
+            else if ( type == QEvent::Resize )
+                resize( sizeHint() );
+        }
+    }
+
+    // any mouse-click on something else than "this" makes us hide
+    else if ( type == QEvent::MouseButtonPress ) {
+        QMouseEvent *ev = static_cast<QMouseEvent *>( e );
+        if ( !rect().contains( ev->pos() )) // this widget
+            hide();
+    }
+
+    return OListBox::eventFilter( o, e );
+}
+
+
+void OCompletionBox::popup()
+{
+    if ( count() == 0 )
+        hide();
+    else {
+        ensureCurrentVisible();
+        bool block = signalsBlocked();
+        blockSignals( true );
+        setCurrentItem( 0 );
+        blockSignals( block );
+        clearSelection();
+        if ( !isVisible() )
+            show();
+        else if ( size().height() < sizeHint().height() )
+            resize( sizeHint() );
+    }
+}
+
+void OCompletionBox::show()
+{
+    resize( sizeHint() );
+
+    if ( d->m_parent )
+    {
+        //QDesktopWidget *screen = QApplication::desktop();
+        QWidget *screen = QApplication::desktop();
+
+        QPoint orig = d->m_parent->mapToGlobal( QPoint(0, d->m_parent->height()) );
+            int x = orig.x();
+        int y = orig.y();
+
+        if ( x + width() > screen->width() )
+            x = screen->width() - width();
+        if (y + height() > screen->height() )
+            y = y - height() - d->m_parent->height();
+
+            move( x, y);
+            qApp->installEventFilter( this );
+    }
+
+    // ### we shouldn't need to call this, but without this, the scrollbars
+    // are pretty b0rked.
+    //triggerUpdate( true );
+
+    OListBox::show();
+}
+
+void OCompletionBox::hide()
+{
+    if ( d->m_parent )
+        qApp->removeEventFilter( this );
+    d->cancelText = QString::null;
+    OListBox::hide();
+}
+
+QSize OCompletionBox::sizeHint() const
+{
+    int ih = itemHeight();
+    int h = QMIN( 15 * ih, (int) count() * ih ) +1;
+    h = QMAX( h, OListBox::minimumSizeHint().height() );
+
+    int w = (d->m_parent) ? d->m_parent->width() : OListBox::minimumSizeHint().width();
+    w = QMAX( OListBox::minimumSizeHint().width(), w );
+    return QSize( w, h );
+}
+
+void OCompletionBox::down()
+{
+    int i = currentItem();
+
+    if ( i == 0 && d->down_workaround ) {
+        d->down_workaround = false;
+        setCurrentItem( 0 );
+        setSelected( 0, true );
+        emit highlighted( currentText() );
+    }
+
+    else if ( i < (int) count() - 1 )
+        setCurrentItem( i + 1 );
+}
+
+void OCompletionBox::up()
+{
+    if ( currentItem() > 0 )
+        setCurrentItem( currentItem() - 1 );
+}
+
+void OCompletionBox::pageDown()
+{
+    int i = currentItem() + numItemsVisible();
+    i = i > (int)count() - 1 ? (int)count() - 1 : i;
+    setCurrentItem( i );
+}
+
+void OCompletionBox::pageUp()
+{
+    int i = currentItem() - numItemsVisible();
+    i = i < 0 ? 0 : i;
+    setCurrentItem( i );
+}
+
+void OCompletionBox::home()
+{
+    setCurrentItem( 0 );
+}
+
+void OCompletionBox::end()
+{
+    setCurrentItem( count() -1 );
+}
+
+void OCompletionBox::setTabHandling( bool enable )
+{
+    d->tabHandling = enable;
+}
+
+bool OCompletionBox::isTabHandling() const
+{
+    return d->tabHandling;
+}
+
+void OCompletionBox::setCancelledText( const QString& text )
+{
+    d->cancelText = text;
+}
+
+QString OCompletionBox::cancelledText() const
+{
+    return d->cancelText;
+}
+
+void OCompletionBox::cancelled()
+{
+    if ( !d->cancelText.isNull() )
+        emit userCancelled( d->cancelText );
+    if ( isVisible() )
+        hide();
+}
+
+class OCompletionBoxItem : public QListBoxItem
+{
+public:
+    void reuse( const QString &text ) { setText( text ); }
+};
+
+
+void OCompletionBox::insertItems( const QStringList& items, int index )
+{
+    bool block = signalsBlocked();
+    blockSignals( true );
+    insertStringList( items, index );
+    blockSignals( block );
+    d->down_workaround = true;
+}
+
+void OCompletionBox::setItems( const QStringList& items )
+{
+    bool block = signalsBlocked();
+    blockSignals( true );
+
+    QListBoxItem* item = firstItem();
+    if ( !item ) {
+        insertStringList( items );
+    }
+    else {
+        for ( QStringList::ConstIterator it = items.begin(); it != items.end(); it++) {
+            if ( item ) {
+                ((OCompletionBoxItem*)item)->reuse( *it );
+                item = item->next();
+            }
+            else {
+                insertItem( new QListBoxText( *it ) );
+            }
+        }
+        QListBoxItem* tmp = item;
+        while ( (item = tmp ) ) {
+            tmp = item->next();
+            delete item;
+        }
+        triggerUpdate( false );
+    }
+
+    blockSignals( block );
+    d->down_workaround = true;
+}
+
+void OCompletionBox::slotCurrentChanged()
+{
+    d->down_workaround = false;
+}
+
+void OCompletionBox::slotItemClicked( QListBoxItem *item )
+{
+    if ( item )
+    {
+        if ( d->down_workaround ) {
+            d->down_workaround = false;
+            emit highlighted( item->text() );
+        }
+    
+        hide();
+        emit activated( item->text() );
+    }
+}