Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 279 insertions, 0 deletions

diff --git a/kio/kfile/kfilepreview.cpp b/kio/kfile/kfilepreview.cpp
new file mode 100644
index 000000000..14065c3cb
--- /dev/null
+++ b/kio/kfile/kfilepreview.cpp
@@ -0,0 +1,279 @@
+/* This file is part of the KDE libraries
+    Copyright (C) 1998 Stephan Kulow <coolo@kde.org>
+                  1998 Daniel Grana <grana@ie.iwi.unibe.ch>
+                  2000 Werner Trobin <wtrobin@carinthia.com>
+
+    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 <kaction.h>
+#include <kfilepreview.h>
+#include <kfilepreview.moc>
+#include <klocale.h>
+
+#include <qlabel.h>
+
+#include "config-kfile.h"
+
+KFilePreview::KFilePreview(KFileView *view, QWidget *parent, const char *name)
+    : QSplitter(parent, name), KFileView()
+{
+    if ( view )
+        init( view );
+    else
+        init( new KFileIconView( (QSplitter*) this, "left" ));
+}
+
+
+KFilePreview::KFilePreview(QWidget *parent, const char *name) :
+                           QSplitter(parent, name), KFileView()
+{
+    init( new KFileIconView((QSplitter*)this, "left") );
+}
+
+KFilePreview::~KFilePreview()
+{
+    // Why copy the actions in the first place? --ellis, 13 Jan 02.
+    //// don't delete the view's actions (inserted into our collection)!
+    //for ( uint i = 0; i < left->actionCollection()->count(); i++ )
+    //    actionCollection()->take( left->actionCollection()->action( i ));
+
+    // don't delete the preview, we can reuse it
+    // (it will get deleted by ~KDirOperator)
+    if ( preview && preview->parentWidget() == this ) {
+        preview->reparent(0L, 0, QPoint(0, 0), false);
+    }
+}
+
+void KFilePreview::init( KFileView *view )
+{
+    setViewName( i18n("Preview") );
+
+    left = 0L;
+    setFileView( view );
+
+    preview = new QWidget((QSplitter*)this, "preview");
+    QString tmp = i18n("No preview available.");
+    QLabel *l = new QLabel(tmp, preview);
+    l->setMinimumSize(l->sizeHint());
+    l->move(10, 5);
+    preview->setMinimumWidth(l->sizeHint().width()+20);
+    setResizeMode(preview, QSplitter::KeepSize);
+
+    // Why copy the actions? --ellis, 13 Jan 02.
+    //for ( uint i = 0; i < view->actionCollection()->count(); i++ )
+    //    actionCollection()->insert( view->actionCollection()->action( i ));
+}
+
+void KFilePreview::setFileView( KFileView *view )
+{
+    Q_ASSERT( view );
+
+    // Why copy the actions? --ellis, 13 Jan 02.
+    //if ( left ) { // remove any previous actions
+    //    for ( uint i = 0; i < left->actionCollection()->count(); i++ )
+    //        actionCollection()->take( left->actionCollection()->action( i ));
+    //}
+
+    delete left;
+    view->widget()->reparent( this, QPoint(0,0) );
+    view->KFileView::setViewMode(All);
+    view->setParentView(this);
+    view->setSorting( sorting() );
+    left = view;
+
+    connect( left->signaler(), SIGNAL( fileHighlighted(const KFileItem*) ),
+             SLOT( slotHighlighted( const KFileItem * )));
+
+    // Why copy the actions? --ellis, 13 Jan 02.
+    //for ( uint i = 0; i < view->actionCollection()->count(); i++ )
+    //    actionCollection()->insert( view->actionCollection()->action( i ));
+}
+
+// this url parameter is useless... it's the url of the current directory.
+// what for?
+void KFilePreview::setPreviewWidget(const QWidget *w, const KURL &)
+{
+    left->setOnlyDoubleClickSelectsFiles( onlyDoubleClickSelectsFiles() );
+
+    if (w) {
+        connect(this, SIGNAL( showPreview(const KURL &) ),
+                w, SLOT( showPreview(const KURL &) ));
+        connect( this, SIGNAL( clearPreview() ),
+                w, SLOT( clearPreview() ));
+    }
+    else {
+        preview->hide();
+        return;
+    }
+
+    delete preview;
+    preview = const_cast<QWidget*>(w);
+    preview->reparent((QSplitter*)this, 0, QPoint(0, 0), true);
+    preview->resize(preview->sizeHint());
+    preview->show();
+}
+
+void KFilePreview::insertItem(KFileItem *item)
+{
+    KFileView::insertItem( item );
+    left->insertItem(item);
+}
+
+void KFilePreview::setSorting( QDir::SortSpec sort )
+{
+    left->setSorting( sort );
+    KFileView::setSorting( left->sorting() );
+}
+
+void KFilePreview::clearView()
+{
+    left->clearView();
+    emit clearPreview();
+}
+
+void KFilePreview::updateView(bool b)
+{
+    left->updateView(b);
+    if(preview)
+        preview->repaint(b);
+}
+
+void KFilePreview::updateView(const KFileItem *i)
+{
+    left->updateView(i);
+}
+
+void KFilePreview::removeItem(const KFileItem *i)
+{
+    if ( left->isSelected( i ) )
+        emit clearPreview();
+
+    left->removeItem(i);
+    KFileView::removeItem( i );
+}
+
+void KFilePreview::listingCompleted()
+{
+    left->listingCompleted();
+}
+
+void KFilePreview::clear()
+{
+    KFileView::clear();
+    left->KFileView::clear();
+}
+
+void KFilePreview::clearSelection()
+{
+    left->clearSelection();
+    emit clearPreview();
+}
+
+void KFilePreview::selectAll()
+{
+    left->selectAll();
+}
+
+void KFilePreview::invertSelection()
+{
+    left->invertSelection();
+}
+
+bool KFilePreview::isSelected( const KFileItem *i ) const
+{
+    return left->isSelected( i );
+}
+
+void KFilePreview::setSelectionMode(KFile::SelectionMode sm) {
+    left->setSelectionMode( sm );
+}
+
+void KFilePreview::setSelected(const KFileItem *item, bool enable) {
+    left->setSelected( item, enable );
+}
+
+void KFilePreview::setCurrentItem( const KFileItem *item )
+{
+    left->setCurrentItem( item );
+}
+
+KFileItem * KFilePreview::currentFileItem() const
+{
+    return left->currentFileItem();
+}
+
+void KFilePreview::slotHighlighted(const KFileItem* item)
+{
+    if ( item )
+        emit showPreview( item->url() );
+
+    else { // item = 0 -> multiselection mode
+        const KFileItemList *items = selectedItems();
+        if ( items->count() == 1 )
+            emit showPreview( items->getFirst()->url() );
+        else
+            emit clearPreview();
+    }
+
+    // the preview widget appears and takes some space of the left view,
+    // so we may have to scroll to make the current item visible
+    left->ensureItemVisible(item);
+ }
+
+void KFilePreview::ensureItemVisible(const KFileItem *item)
+{
+    left->ensureItemVisible(item);
+}
+
+KFileItem * KFilePreview::firstFileItem() const
+{
+    return left->firstFileItem();
+}
+
+KFileItem * KFilePreview::nextItem( const KFileItem *item ) const
+{
+    return left->nextItem( item );
+}
+
+KFileItem * KFilePreview::prevItem( const KFileItem *item ) const
+{
+    return left->prevItem( item );
+}
+
+KActionCollection * KFilePreview::actionCollection() const
+{
+    if ( left )
+        return left->actionCollection();
+    else {
+        kdWarning() << "KFilePreview::actionCollection(): called before setFileView()." << endl; //ellis
+        return KFileView::actionCollection();
+    }
+}
+
+void KFilePreview::readConfig( KConfig *config, const QString& group )
+{
+    left->readConfig( config, group );
+}
+
+void KFilePreview::writeConfig( KConfig *config, const QString& group )
+{
+    left->writeConfig( config, group );
+}
+
+void KFilePreview::virtual_hook( int id, void* data )
+{ KFileView::virtual_hook( id, data ); }
+