protected function getResultText(SMWQueryResult $res, $outputmode)
{
if (!is_callable('renderGraphviz')) {
wfWarn('The SRF Graph printer needs the GraphViz extension to be installed.');
return '';
}
global $wgGraphVizSettings;
$this->isHTML = true;
$graphInput = "digraph {$this->m_graphName} {";
if ($this->m_graphSize != '') {
$graphInput .= "size=\"{$this->m_graphSize}\";";
}
if ($this->m_nodeShape) {
$graphInput .= "node [shape={$this->m_nodeShape}];";
}
$graphInput .= "rankdir={$this->m_rankdir};";
while ($row = $res->getNext()) {
$graphInput .= $this->getGVForItem($row, $outputmode);
}
$graphInput .= "}";
// Calls renderGraphViz function from MediaWiki GraphViz extension
$result = renderGraphviz($graphInput);
if ($this->m_graphLegend && $this->m_graphColor) {
$arrayCount = 0;
$arraySize = count($this->m_graphColors);
$result .= "<P>";
foreach ($this->m_labelArray as $m_label) {
if ($arrayCount >= $arraySize) {
$arrayCount = 0;
}
$color = $this->m_graphColors[$arrayCount];
$result .= "<font color={$color}>{$color}: {$m_label} </font><br />";
$arrayCount += 1;
}
$result .= "</P>";
}
return $result;
}
/**
* This method renders the result set provided by SMW according to the printer
*
* @param res SMWQueryResult, result set of the ask query provided by SMW
* @param outputmode ?
* @return String, rendered HTML output of this printer for the ask-query
*
*/
protected function getResultText( SMWQueryResult $res, $outputmode ) {
if ( !is_callable( 'renderGraphviz' ) ) {
wfWarn( 'The SRF Graph printer needs the GraphViz extension to be installed.' );
return '';
}
global $wgContLang; // content language object
//
// GraphViz settings
//
global $wgGraphVizSettings;
$this->isHTML = true;
//
// Iterate all rows in result set
//
$row = $res->getNext(); // get initial row (i.e. array of SMWResultArray)
while ( $row !== false ) {
$subject = $row[0]->getResultSubject(); // get Subject of the Result
// creates a new node if $val has type wikipage
if ( $subject->getTypeID() == '_wpg' ) {
$val = $subject->getShortWikiText();
$node = $this->m_process->makeNode( $val, $val );
}
//
// Iterate all colums of the row (which describe properties of the proces node)
//
foreach ( $row as $field ) {
// check column title
$req = $field->getPrintRequest();
switch ( ( strtolower( $req->getLabel() ) ) ) {
case strtolower( $wgContLang->getNsText( NS_CATEGORY ) ):
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
if ( $val == ( $wgContLang->getNsText( NS_CATEGORY ) . ':' . $this->m_processCategory ) ) $node->setAtomic( false );
}
break;
case "haslabel":
$value = current($field->getContent()); // save only the first
if (($value !== false)) {
$val = $value->getLongWikiText();
if ($this->m_process->getUseOtherLabels()) {
$val = str_replace("&","and",$val);
$node->setLabel($val);
}
}
break;
case "hasrole":
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$role = $this->m_process->makeRole( $val, $val );
$node->addRole( $role );
}
break;
case "usesresource":
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$xres = $this->m_process->makeRessource( $val, $val );
$node->addUsedRessource( $xres );
}
break;
case "producesresource":
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$xres = $this->m_process->makeRessource( $val, $val );
$node->addProducedRessource( $xres );
}
break;
case "hassuccessor":
if ( count( $field->getContent() ) > 1 ) {
// SplitParallel
$edge = new SplitParallelEdge();
$edge->setFrom( $node );
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$edge->addTo( $this->m_process->makeNode( $val, $val ) );
}
} else {
// Sequence
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$edge = new SequentialEdge();
$edge->setFrom( $node );
$edge->setTo( $this->m_process->makeNode( $val, $val ) );
}
}
break;
case "hasorsuccessor":
if ( count( $field->getContent() ) > 0 ) {
// SplitExclusiveOr
$edge = new SplitExclusiveOrEdge();
$edge->setFrom( $node );
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$edge->addTo( $this->m_process->makeNode( $val, $val ) );
}
}
break;
case "hascontruesuccessor":
if ( count( $field->getContent() ) > 0 ) {
// SplitConditional
if ( !isset( $cond_edge ) ) {
$cond_edge = new SplitConditionalOrEdge();
$cond_edge->setFrom( $node );
}
// should be only one
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$cond_edge->setToTrue( $this->m_process->makeNode( $val, $val ) );
}
}
break;
case "hasconfalsesuccessor":
if ( count( $field->getContent() ) > 0 ) {
// SplitConditional
if ( !isset( $cond_edge ) ) {
$cond_edge = new SplitConditionalOrEdge();
$cond_edge->setFrom( $node );
}
// should be only one
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$cond_edge->setToFalse( $this->m_process->makeNode( $val, $val ) );
}
}
break;
case "hascondition":
if ( count( $field->getContent() ) > 0 ) {
// SplitConditional
if ( !isset( $cond_edge ) ) {
$cond_edge = new SplitConditionalOrEdge();
$cond_edge->setFrom( $node );
}
// should be only one
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$cond_edge->setConditionText( $val );
}
}
break;
case "hasstatus":
// should be only one
foreach ( $field->getContent() as $value ) {
$val = $value->getShortWikiText();
$node->setStatus( $val );
}
break;
default:
// TODO - redundant column in result
}
}
// reset row variables
unset( $node );
unset( $cond_edge );
$row = $res->getNext(); // switch to next row
}
//
// generate graphInput
//
$graphInput = $this->m_process->getGraphVizCode();
//
// render graphViz code
//
$result = renderGraphviz( $graphInput );
$debug = '';
if ( $this->m_isDebugSet ) $debug = '<pre>' . $graphInput . '</pre>';
return $result . $debug;
}
