okular/ui/toc.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2004-2006 by Albert Astals Cid <tsdgeos@terra.es>       *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  ***************************************************************************/
   9
  10 #include "toc.h"
  11
  12 // qt/kde includes
  13 #include <qdom.h>
  14 #include <qheaderview.h>
  15 #include <qlayout.h>
  16 #include <qtreeview.h>
  17
  18 #include <klineedit.h>
  19
  20 // local includes
  21 #include "ktreeviewsearchline.h"
  22 #include "pageitemdelegate.h"
  23 #include "tocmodel.h"
  24 #include "core/action.h"
  25 #include "core/document.h"
  26
  27 TOC::TOC(QWidget *parent, Okular::Document *document) : QWidget(parent), m_document(document), m_currentPage(-1)
  28 {
  29     QVBoxLayout *mainlay = new QVBoxLayout( this );
  30     mainlay->setMargin( 0 );
  31     mainlay->setSpacing( 6 );
  32
  33     m_searchLine = new KTreeViewSearchLine( this );
  34     mainlay->addWidget( m_searchLine );
  35
  36     m_treeView = new QTreeView( this );
  37     mainlay->addWidget( m_treeView );
  38     m_model = new TOCModel( document, m_treeView );
  39     m_treeView->setModel( m_model );
  40     m_treeView->setSortingEnabled( false );
  41     m_treeView->setRootIsDecorated( true );
  42     m_treeView->setAlternatingRowColors( true );
  43     m_treeView->setItemDelegate( new PageItemDelegate( m_treeView ) );
  44     m_treeView->header()->hide();
  45     m_treeView->setSelectionBehavior( QAbstractItemView::SelectRows );
  46     connect( m_treeView, SIGNAL( clicked( const QModelIndex & ) ), this, SLOT( slotExecuted( const QModelIndex & ) ) );
  47     connect( m_treeView, SIGNAL( activated( const QModelIndex & ) ), this, SLOT( slotExecuted( const QModelIndex & ) ) );
  48     m_searchLine->addTreeView( m_treeView );
  49 }
  50
  51 TOC::~TOC()
  52 {
  53     m_document->removeObserver( this );
  54 }
  55
  56 uint TOC::observerId() const
  57 {
  58     return TOC_ID;
  59 }
  60
  61 void TOC::notifySetup( const QVector< Okular::Page * > & /*pages*/, int setupFlags )
  62 {
  63     if ( !( setupFlags & Okular::DocumentObserver::DocumentChanged ) )
  64         return;
  65
  66     // clear contents
  67     m_model->clear();
  68     m_currentPage = -1;
  69
  70     // request synopsis description (is a dom tree)
  71     const Okular::DocumentSynopsis * syn = m_document->documentSynopsis();
  72
  73     // if not present, disable the contents tab
  74     if ( !syn )
  75     {
  76         emit hasTOC( false );
  77         return;
  78     }
  79
  80     // else populate the listview and enable the tab
  81     m_model->fill( syn );
  82     emit hasTOC( !m_model->isEmpty() );
  83 }
  84
  85 void TOC::notifyViewportChanged( bool /*smoothMove*/ )
  86 {
  87     int newpage = m_document->viewport().pageNumber;
  88     if ( m_currentPage == newpage )
  89         return;
  90
  91     m_currentPage = newpage;
  92
  93     m_model->setCurrentViewport( m_document->viewport() );
  94 }
  95
  96
  97 void TOC::reparseConfig()
  98 {
  99     m_treeView->update();
 100 }
 101
 102
 103 void TOC::slotExecuted( const QModelIndex &index )
 104 {
 105     if ( !index.isValid() )
 106         return;
 107
 108     QString url = m_model->urlForIndex( index );
 109     if ( !url.isEmpty() )
 110     {
 111         Okular::BrowseAction action( url );
 112         m_document->processAction( &action );
 113         return;
 114     }
 115
 116     QString externalFileName = m_model->externalFileNameForIndex( index );
 117     Okular::DocumentViewport viewport = m_model->viewportForIndex( index );
 118     if ( !externalFileName.isEmpty() )
 119     {
 120         Okular::GotoAction action( externalFileName, viewport );
 121         m_document->processAction( &action );
 122     }
 123     else if ( viewport.isValid() )
 124     {
 125         m_document->setViewport( viewport );
 126     }
 127 }
 128
 129 #include "toc.moc"