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/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 175 insertions, 0 deletions

diff --git a/kpdf/ui/toc.cpp b/kpdf/ui/toc.cpp
new file mode 100644
index 00000000..6db19933
--- /dev/null
+++ b/kpdf/ui/toc.cpp
@@ -0,0 +1,175 @@
+/***************************************************************************
+ *   Copyright (C) 2004-2006 by Albert Astals Cid <tsdgeos@terra.es>       *
+ *                                                                         *
+ *   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.                                   *
+ ***************************************************************************/
+
+// qt/kde includes
+#include <qheader.h>
+#include <qvariant.h>
+#include <klocale.h>
+
+// local includes
+#include "toc.h"
+#include "core/link.h"
+#include "core/page.h"
+
+// uncomment following to enable a 2nd column showing the page referred
+// by each tree entry note: PDF uses often references to viewports and
+// they're slow when converted to page number. drop the 2nd column idea.
+//#define TOC_ENABLE_PAGE_COLUMN
+
+class TOCItem : public KListViewItem
+{
+    public:
+        TOCItem( KListView *parent, TOCItem *after, const QDomElement & e )
+            : KListViewItem( parent, after, e.tagName() ), m_element( e )
+        {
+#ifdef TOC_ENABLE_PAGE_COLUMN
+            if ( e.hasAttribute( "Page" ) )
+                setText( 1, e.attribute( "Page" ) );
+#endif
+            setMultiLinesEnabled(true);
+        }
+
+        TOCItem( KListViewItem *parent, TOCItem *after, const QDomElement & e )
+            : KListViewItem( parent, after, e.tagName() ), m_element( e )
+        {
+#ifdef TOC_ENABLE_PAGE_COLUMN
+            if ( e.hasAttribute( "Page" ) )
+                setText( 1, e.attribute( "Page" ) );
+#endif
+            setMultiLinesEnabled(true);
+        }
+
+        const QDomElement & element() const
+        {
+            return m_element;
+        }
+
+    private:
+        QDomElement m_element;
+};
+
+TOC::TOC(QWidget *parent, KPDFDocument *document) : KListView(parent), m_document(document)
+{
+    addColumn( i18n("Topic") );
+#ifdef TOC_ENABLE_PAGE_COLUMN
+    addColumn( i18n("Page") );
+#else
+    header() -> hide();
+#endif
+    setSorting(-1);
+    setRootIsDecorated(true);
+    // the next line causes bug:147233
+//    setResizeMode(AllColumns);
+    setAllColumnsShowFocus(true);
+    connect(this, SIGNAL(clicked(QListViewItem *)), this, SLOT(slotExecuted(QListViewItem *)));
+    connect(this, SIGNAL(returnPressed(QListViewItem *)), this, SLOT(slotExecuted(QListViewItem *)));
+}
+
+TOC::~TOC()
+{
+    m_document->removeObserver( this );
+}
+
+uint TOC::observerId() const
+{
+    return TOC_ID;
+}
+
+void TOC::notifySetup( const QValueVector< KPDFPage * > & /*pages*/, bool documentChanged )
+{
+    if ( !documentChanged )
+        return;
+
+    // clear contents
+    clear();
+
+    // request synopsis description (is a dom tree)
+    const DocumentSynopsis * syn = m_document->documentSynopsis();
+
+    // if not present, disable the contents tab
+    if ( !syn )
+    {
+        emit hasTOC( false );
+        return;
+    }
+
+    // else populate the listview and enable the tab
+    addChildren( *syn );
+    emit hasTOC( true );
+}
+
+void TOC::addChildren( const QDomNode & parentNode, KListViewItem * parentItem )
+{
+    // keep track of the current listViewItem
+    TOCItem * currentItem = 0;
+    QDomNode n = parentNode.firstChild();
+    while( !n.isNull() )
+    {
+        // convert the node to an element (sure it is)
+        QDomElement e = n.toElement();
+
+        // insert the entry as top level (listview parented) or 2nd+ level
+        if ( !parentItem )
+            currentItem = new TOCItem( this, currentItem, e );
+        else
+            currentItem = new TOCItem( parentItem, currentItem, e );
+
+        // descend recursively and advance to the next node
+        if ( e.hasChildNodes() )
+            addChildren( n, currentItem );
+
+        // open/keep close the item
+        bool isOpen = false;
+        if ( e.hasAttribute( "Open" ) )
+            isOpen = QVariant( e.attribute( "Open" ) ).toBool();
+        currentItem->setOpen( isOpen );
+
+        n = n.nextSibling();
+    }
+}
+
+void TOC::slotExecuted( QListViewItem *i )
+{
+    TOCItem* tocItem = dynamic_cast<TOCItem*>( i );
+    // that filters clicks on [+] that for a strange reason don't seem to be TOCItem*
+    if (tocItem == NULL)
+        return;
+    const QDomElement & e = tocItem->element();
+
+    QString externalFileName = e.attribute( "ExternalFileName" );
+    if ( !externalFileName.isEmpty() )
+    {
+        KPDFLinkGoto link( externalFileName, getViewport( e ) );
+        m_document->processLink( &link );
+    }
+    else
+    {
+        m_document->setViewport( getViewport( e ), TOC_ID );
+    }
+}
+
+DocumentViewport TOC::getViewport( const QDomElement &e ) const
+{
+    if ( e.hasAttribute( "Viewport" ) )
+    {
+        // if the node has a viewport, set it
+        return DocumentViewport( e.attribute( "Viewport" ) );
+    }
+    else if ( e.hasAttribute( "ViewportName" ) )
+    {
+        // if the node references a viewport, get the reference and set it
+        const QString & page = e.attribute( "ViewportName" );
+        const QString & viewport = m_document->getMetaData( "NamedViewport", page );
+        if ( !viewport.isNull() )
+            return DocumentViewport( viewport );
+    }
+    return DocumentViewport();
+}
+
+#include "toc.moc"