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/****************************************************************************
**
** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
**
** This file is part of an example program for TQt. This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/
#include "outlinetree.h"
#include <ntqfile.h>
#include <ntqmessagebox.h>
OutlineTree::OutlineTree( const TQString fileName, TQWidget *parent, const char *name )
: TQListView( parent, name )
{
// div. configuration of the list view
addColumn( "Outlines" );
setSorting( -1 );
setRootIsDecorated( TRUE );
// read the XML file and create DOM tree
TQFile opmlFile( fileName );
if ( !opmlFile.open( IO_ReadOnly ) ) {
TQMessageBox::critical( 0,
tr( "Critical Error" ),
tr( "Cannot open file %1" ).arg( fileName ) );
return;
}
if ( !domTree.setContent( &opmlFile ) ) {
TQMessageBox::critical( 0,
tr( "Critical Error" ),
tr( "Parsing error for file %1" ).arg( fileName ) );
opmlFile.close();
return;
}
opmlFile.close();
// get the header information from the DOM
TQDomElement root = domTree.documentElement();
TQDomNode node;
node = root.firstChild();
while ( !node.isNull() ) {
if ( node.isElement() && node.nodeName() == "head" ) {
TQDomElement header = node.toElement();
getHeaderInformation( header );
break;
}
node = node.nextSibling();
}
// create the tree view out of the DOM
node = root.firstChild();
while ( !node.isNull() ) {
if ( node.isElement() && node.nodeName() == "body" ) {
TQDomElement body = node.toElement();
buildTree( 0, body );
break;
}
node = node.nextSibling();
}
}
OutlineTree::~OutlineTree()
{
}
void OutlineTree::getHeaderInformation( const TQDomElement &header )
{
// visit all children of the header element and look if you can make
// something with it
TQDomNode node = header.firstChild();
while ( !node.isNull() ) {
if ( node.isElement() ) {
// case for the different header entries
if ( node.nodeName() == "title" ) {
TQDomText textChild = node.firstChild().toText();
if ( !textChild.isNull() ) {
setColumnText( 0, textChild.nodeValue() );
}
}
}
node = node.nextSibling();
}
}
void OutlineTree::buildTree( TQListViewItem *parentItem, const TQDomElement &parentElement )
{
TQListViewItem *thisItem = 0;
TQDomNode node = parentElement.firstChild();
while ( !node.isNull() ) {
if ( node.isElement() && node.nodeName() == "outline" ) {
// add a new list view item for the outline
if ( parentItem == 0 )
thisItem = new TQListViewItem( this, thisItem );
else
thisItem = new TQListViewItem( parentItem, thisItem );
thisItem->setText( 0, node.toElement().attribute( "text" ) );
// recursive build of the tree
buildTree( thisItem, node.toElement() );
}
node = node.nextSibling();
}
}
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