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tdeedu/libkdeedu/kdeeduui/kdeeduglossary.cpp

407 lines
10 KiB

/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "kdeeduglossary.h"
#include <kdebug.h>
#include <klocale.h>
#include <kiconloader.h>
#include <khtml_part.h>
#include <khtmlview.h>
#include <kglobal.h>
#include <klistview.h>
#include <klistviewsearchline.h>
#include <kstandarddirs.h>
#include <kactioncollection.h>
#include <qfile.h>
#include <qlabel.h>
#include <qheader.h>
#include <qlayout.h>
#include <qpushbutton.h>
#include <qsplitter.h>
#include <qstringlist.h>
#include <qtoolbutton.h>
Glossary::Glossary()
{
// setting a generic name for a new glossary
m_name = i18n( "Glossary" );
}
Glossary::~Glossary()
{
}
bool Glossary::loadLayout( QDomDocument &Document, const KURL& url )
{
QFile layoutFile( url.path() );
if (!layoutFile.exists())
{
kdDebug() << "no such file: " << layoutFile.name() << endl;
return false;
}
if (!layoutFile.open(IO_ReadOnly))
return false;
///Check if document is well-formed
if (!Document.setContent(&layoutFile))
{
kdDebug() << "wrong xml" << endl;
layoutFile.close();
return false;
}
layoutFile.close();
return true;
}
bool Glossary::isEmpty() const
{
return m_itemlist.count() == 0;
}
Glossary* Glossary::readFromXML( const KURL& url, const QString& path )
{
QDomDocument doc( "document" );
Glossary *glossary = new Glossary();
glossary->setPicturePath( path );
if ( glossary->loadLayout( doc, url ) )
{
QValueList<GlossaryItem*> itemList;
itemList = glossary->readItems( doc );
glossary->setItemlist( itemList );
glossary->fixImagePath();
}
return glossary;
}
void Glossary::fixImagePath()
{
kdDebug() << "Glossary::fixImagePath()" << endl;
QValueList<GlossaryItem*>::iterator it = m_itemlist.begin();
const QValueList<GlossaryItem*>::iterator itEnd = m_itemlist.end();
QString path = m_picturepath;
QString firstpart = "<img src=\"";
firstpart += path;
for ( ; it != itEnd ; ++it )
{
( *it )->setDesc( ( *it )->desc().replace("[img]", firstpart ) );
( *it )->setDesc( ( *it )->desc().replace("[/img]", "\" />" ) );
}
}
QValueList<GlossaryItem*> Glossary::readItems( QDomDocument &itemDocument )
{
QValueList<GlossaryItem*> list;
QDomNodeList itemList;
QDomNodeList refNodeList;
QDomElement itemElement;
QStringList reflist;
itemList = itemDocument.elementsByTagName( "item" );
const uint num = itemList.count();
for ( uint i = 0; i < num; ++i )
{
reflist.clear();
GlossaryItem *item = new GlossaryItem();
itemElement = ( const QDomElement& ) itemList.item( i ).toElement();
QDomNode nameNode = itemElement.namedItem( "name" );
QDomNode descNode = itemElement.namedItem( "desc" );
QString picName = itemElement.namedItem( "picture" ).toElement().text();
QDomElement refNode = ( const QDomElement& ) itemElement.namedItem( "references" ).toElement();
QString desc = i18n( descNode.toElement().text().utf8() );
if ( !picName.isEmpty() )
desc.prepend("[img]"+picName +"[/img]" );
item->setName( i18n( nameNode.toElement( ).text().utf8() ) );
item->setDesc( desc.replace("[b]", "<b>" ) );
item->setDesc( item->desc().replace("[/b]", "</b>" ) );
item->setDesc( item->desc().replace("[i]", "<i>" ) );
item->setDesc( item->desc().replace("[/i]", "</i>" ) );
item->setDesc( item->desc().replace("[sub]", "<sub>" ) );
item->setDesc( item->desc().replace("[/sub]", "</sub>" ) );
item->setDesc( item->desc().replace("[sup]", "<sup>" ) );
item->setDesc( item->desc().replace("[/sup]", "</sup>" ) );
item->setDesc( item->desc().replace("[br]", "<br />" ) );
refNodeList = refNode.elementsByTagName( "refitem" );
for ( uint it = 0; it < refNodeList.count(); it++ )
{
reflist << i18n( refNodeList.item( it ).toElement().text().utf8() );
}
reflist.sort();
item->setRef( reflist );
list.append( item );
}
return list;
}
GlossaryDialog::GlossaryDialog( bool folded, QWidget *parent, const char *name)
: KDialogBase( Plain, i18n( "Glossary" ), Close, NoDefault, parent, name, false )
{
//this string will be used for all items. If a backgroundpicture should
//be used call Glossary::setBackgroundPicture().
m_htmlbasestring = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\"><html><body>" ;
m_folded = folded;
QVBoxLayout *vbox = new QVBoxLayout( plainPage(), 0, KDialog::spacingHint() );
vbox->activate();
QHBoxLayout *hbox = new QHBoxLayout( 0L, 0, KDialog::spacingHint() );
hbox->activate();
QToolButton *clear = new QToolButton( plainPage() );
clear->setIconSet( SmallIconSet( "locationbar_erase" ) );
hbox->addWidget( clear );
QLabel *lbl = new QLabel( plainPage() );
lbl->setText( i18n( "Search:" ) );
hbox->addWidget( lbl );
m_search = new KListViewSearchLine( plainPage(), 0, "search-line" );
hbox->addWidget( m_search );
vbox->addLayout( hbox );
setFocusProxy(m_search);
QSplitter *vs = new QSplitter( plainPage() );
vbox->addWidget( vs );
m_glosstree = new KListView( vs, "treeview" );
m_glosstree->addColumn( "entries" );
m_glosstree->header()->hide();
m_glosstree->setFullWidth( true );
m_glosstree->setRootIsDecorated( true );
m_search->setListView( m_glosstree );
m_htmlpart = new KHTMLPart( vs, "html-part" );
connect( m_htmlpart->browserExtension(), SIGNAL( openURLRequestDelayed( const KURL &, const KParts::URLArgs & ) ), this, SLOT( displayItem( const KURL &, const KParts::URLArgs & ) ) );
connect( m_glosstree, SIGNAL(clicked( QListViewItem * )), this, SLOT(slotClicked( QListViewItem * )));
connect( clear, SIGNAL(clicked()), m_search, SLOT(clear()));
resize( 600, 400 );
}
GlossaryDialog::~GlossaryDialog()
{
}
void GlossaryDialog::keyPressEvent(QKeyEvent* e)
{
if (e->key() == Qt::Key_Return) {
e->ignore();
}
KDialogBase::keyPressEvent(e);
}
void GlossaryDialog::displayItem( const KURL& url, const KParts::URLArgs& )
{
// using the "host" part of a kurl as reference
QString myurl = url.host().lower();
m_search->setText( "" );
m_search->updateSearch( "" );
QListViewItem *found = 0;
QListViewItemIterator it( m_glosstree );
QListViewItem *item;
while ( it.current() )
{
item = it.current();
if ( item->text(0).lower() == myurl )
{
found = item;
break;
}
++it;
}
if ( found )
{
m_glosstree->ensureItemVisible( found );
m_glosstree->setCurrentItem( found );
slotClicked( found );
}
}
void GlossaryDialog::updateTree()
{
m_glosstree->clear();
QValueList<Glossary*>::const_iterator itGl = m_glossaries.begin();
const QValueList<Glossary*>::const_iterator itGlEnd = m_glossaries.end();
for ( ; itGl != itGlEnd ; ++itGl )
{
QValueList<GlossaryItem*> items = ( *itGl )->itemlist();
QValueList<GlossaryItem*>::iterator it = items.begin();
const QValueList<GlossaryItem*>::iterator itEnd = items.end();
QListViewItem *main = new QListViewItem( m_glosstree, ( *itGl )->name() );
main->setExpandable( true );
main->setSelectable( false );
//XXX TMP!!!
bool foldinsubtrees = m_folded;
for ( ; it != itEnd ; ++it )
{
if ( foldinsubtrees )
{
QChar thisletter = ( *it )->name().upper()[0];
QListViewItem *thisletteritem = findTreeWithLetter( thisletter, main );
if ( !thisletteritem )
{
thisletteritem = new QListViewItem( main, thisletter );
thisletteritem->setExpandable( true );
thisletteritem->setSelectable( false );
}
new QListViewItem( thisletteritem, ( *it )->name() );
}
else
new QListViewItem( main, ( *it )->name() );
}
main->sort();
}
}
void GlossaryDialog::addGlossary( Glossary* newgloss )
{
if ( !newgloss ) return;
if ( newgloss->isEmpty() ) return;
m_glossaries.append( newgloss );
kdDebug() << "Count of the new glossary: " << newgloss->itemlist().count() << endl;
kdDebug() << "Number of glossaries: " << m_glossaries.count() << endl;
updateTree();
}
QListViewItem* GlossaryDialog::findTreeWithLetter( const QChar& l, QListViewItem* i )
{
QListViewItem *it = i->firstChild();
while ( it )
{
if ( it->text(0)[0] == l )
return it;
it = it->nextSibling();
}
return 0;
}
void GlossaryDialog::slotClicked( QListViewItem *item )
{
if ( !item )
return;
/**
* The next lines are searching for the correct KnowledgeItem
* in the m_itemList. When it is found the HTML will be
* generated
*/
QValueList<Glossary*>::iterator itGl = m_glossaries.begin();
const QValueList<Glossary*>::iterator itGlEnd = m_glossaries.end();
bool found = false;
GlossaryItem *i = 0;
QString bg_picture;
while ( !found && itGl != itGlEnd )
{
QValueList<GlossaryItem*> items = ( *itGl )->itemlist();
QValueList<GlossaryItem*>::const_iterator it = items.begin();
const QValueList<GlossaryItem*>::const_iterator itEnd = items.end();
while ( !found && it != itEnd )
{
if ( ( *it )->name() == item->text( 0 ) )
{
i = *it;
bg_picture = ( *itGl )->backgroundPicture();
found = true;
}
++it;
}
++itGl;
}
if ( found && i )
{
QString html;
if ( !bg_picture.isEmpty() )
{
html = "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\"><html><body background=\"" ;
html.append( bg_picture );
html.append("\">");
}else
html = m_htmlbasestring;
html += i->toHtml() + "</body></html>";
m_htmlpart->begin();
m_htmlpart->write( html );
m_htmlpart->end();
return;
}
}
void GlossaryDialog::slotClose()
{
emit closed();
accept();
}
QString GlossaryItem::toHtml() const
{
QString code = "<h1>" + m_name + "</h1>" + m_desc;
if ( !m_ref.isEmpty() )
{
QString refcode = parseReferences();
code += refcode;
}
return code;
}
QString GlossaryItem::parseReferences() const
{
QString htmlcode = "<h3>" + i18n( "References" ) + "</h3>";
bool first = true;
for ( uint i = 0; i < m_ref.size(); i++ )
{
if ( !first )
htmlcode += "<br>";
else
first = false;
htmlcode += QString( "<a href=\"item://%1\">%2</a>" ).arg( m_ref[i], m_ref[i] );
}
return htmlcode;
}
#include "kdeeduglossary.moc"