static void _readOldLegendGroup( const QDomElement &groupElem, QgsLayerTreeGroup *parent )
{
QDomNodeList groupChildren = groupElem.childNodes();
QgsLayerTreeGroup *groupNode = new QgsLayerTreeGroup( groupElem.attribute( QStringLiteral( "name" ) ) );
groupNode->setItemVisibilityChecked( QgsLayerTreeUtils::checkStateFromXml( groupElem.attribute( QStringLiteral( "checked" ) ) ) != Qt::Unchecked );
groupNode->setExpanded( groupElem.attribute( QStringLiteral( "open" ) ) == QLatin1String( "true" ) );
if ( groupElem.attribute( QStringLiteral( "embedded" ) ) == QLatin1String( "1" ) )
{
groupNode->setCustomProperty( QStringLiteral( "embedded" ), 1 );
groupNode->setCustomProperty( QStringLiteral( "embedded_project" ), groupElem.attribute( QStringLiteral( "project" ) ) );
}
for ( int i = 0; i < groupChildren.size(); ++i )
{
QDomElement currentChildElem = groupChildren.at( i ).toElement();
if ( currentChildElem.tagName() == QLatin1String( "legendlayer" ) )
{
_readOldLegendLayer( currentChildElem, groupNode );
}
else if ( currentChildElem.tagName() == QLatin1String( "legendgroup" ) )
{
_readOldLegendGroup( currentChildElem, groupNode );
}
}
parent->addChildNode( groupNode );
}
bool QgsLayerTreeUtils::readOldLegend( QgsLayerTreeGroup* root, const QDomElement& legendElem )
{
if ( legendElem.isNull() )
return false;
QDomNodeList legendChildren = legendElem.childNodes();
for ( int i = 0; i < legendChildren.size(); ++i )
{
QDomElement currentChildElem = legendChildren.at( i ).toElement();
if ( currentChildElem.tagName() == "legendlayer" )
{
_readOldLegendLayer( currentChildElem, root );
}
else if ( currentChildElem.tagName() == "legendgroup" )
{
_readOldLegendGroup( currentChildElem, root );
}
}
return true;
}
static void _readOldLegendGroup( QDomElement& elem, QgsLayerTreeGroup* parentGroup, QgsProject* project )
{
QDomElement itemElem = elem.firstChildElement();
while ( !itemElem.isNull() )
{
if ( itemElem.tagName() == QLatin1String( "LayerItem" ) )
{
QString layerId = itemElem.attribute( QStringLiteral( "layerId" ) );
if ( QgsMapLayer* layer = project->mapLayer( layerId ) )
{
QgsLayerTreeLayer* nodeLayer = parentGroup->addLayer( layer );
QString userText = itemElem.attribute( QStringLiteral( "userText" ) );
if ( !userText.isEmpty() )
nodeLayer->setCustomProperty( QStringLiteral( "legend/title-label" ), userText );
QString style = itemElem.attribute( QStringLiteral( "style" ) );
if ( !style.isEmpty() )
nodeLayer->setCustomProperty( QStringLiteral( "legend/title-style" ), style );
QString showFeatureCount = itemElem.attribute( QStringLiteral( "showFeatureCount" ) );
if ( showFeatureCount.toInt() )
nodeLayer->setCustomProperty( QStringLiteral( "showFeatureCount" ), 1 );
// support for individual legend items (user text, order) not implemented yet
}
}
else if ( itemElem.tagName() == QLatin1String( "GroupItem" ) )
{
QgsLayerTreeGroup* nodeGroup = parentGroup->addGroup( itemElem.attribute( QStringLiteral( "userText" ) ) );
QString style = itemElem.attribute( QStringLiteral( "style" ) );
if ( !style.isEmpty() )
nodeGroup->setCustomProperty( QStringLiteral( "legend/title-style" ), style );
_readOldLegendGroup( itemElem, nodeGroup, project );
}
itemElem = itemElem.nextSiblingElement();
}
}
bool QgsComposerLegend::readXml( const QDomElement& itemElem, const QDomDocument& doc )
{
if ( itemElem.isNull() )
{
return false;
}
//read general properties
mSettings.setTitle( itemElem.attribute( QStringLiteral( "title" ) ) );
if ( !itemElem.attribute( QStringLiteral( "titleAlignment" ) ).isEmpty() )
{
mSettings.setTitleAlignment( static_cast< Qt::AlignmentFlag >( itemElem.attribute( QStringLiteral( "titleAlignment" ) ).toInt() ) );
}
int colCount = itemElem.attribute( QStringLiteral( "columnCount" ), QStringLiteral( "1" ) ).toInt();
if ( colCount < 1 ) colCount = 1;
mSettings.setColumnCount( colCount );
mSettings.setSplitLayer( itemElem.attribute( QStringLiteral( "splitLayer" ), QStringLiteral( "0" ) ).toInt() == 1 );
mSettings.setEqualColumnWidth( itemElem.attribute( QStringLiteral( "equalColumnWidth" ), QStringLiteral( "0" ) ).toInt() == 1 );
QDomNodeList stylesNodeList = itemElem.elementsByTagName( QStringLiteral( "styles" ) );
if ( !stylesNodeList.isEmpty() )
{
QDomNode stylesNode = stylesNodeList.at( 0 );
for ( int i = 0; i < stylesNode.childNodes().size(); i++ )
{
QDomElement styleElem = stylesNode.childNodes().at( i ).toElement();
QgsLegendStyle style;
style.readXml( styleElem, doc );
QString name = styleElem.attribute( QStringLiteral( "name" ) );
QgsLegendStyle::Style s;
if ( name == QLatin1String( "title" ) ) s = QgsLegendStyle::Title;
else if ( name == QLatin1String( "group" ) ) s = QgsLegendStyle::Group;
else if ( name == QLatin1String( "subgroup" ) ) s = QgsLegendStyle::Subgroup;
else if ( name == QLatin1String( "symbol" ) ) s = QgsLegendStyle::Symbol;
else if ( name == QLatin1String( "symbolLabel" ) ) s = QgsLegendStyle::SymbolLabel;
else continue;
setStyle( s, style );
}
}
//font color
QColor fontClr;
fontClr.setNamedColor( itemElem.attribute( QStringLiteral( "fontColor" ), QStringLiteral( "#000000" ) ) );
mSettings.setFontColor( fontClr );
//spaces
mSettings.setBoxSpace( itemElem.attribute( QStringLiteral( "boxSpace" ), QStringLiteral( "2.0" ) ).toDouble() );
mSettings.setColumnSpace( itemElem.attribute( QStringLiteral( "columnSpace" ), QStringLiteral( "2.0" ) ).toDouble() );
mSettings.setSymbolSize( QSizeF( itemElem.attribute( QStringLiteral( "symbolWidth" ), QStringLiteral( "7.0" ) ).toDouble(), itemElem.attribute( QStringLiteral( "symbolHeight" ), QStringLiteral( "14.0" ) ).toDouble() ) );
mSettings.setWmsLegendSize( QSizeF( itemElem.attribute( QStringLiteral( "wmsLegendWidth" ), QStringLiteral( "50" ) ).toDouble(), itemElem.attribute( QStringLiteral( "wmsLegendHeight" ), QStringLiteral( "25" ) ).toDouble() ) );
mSettings.setLineSpacing( itemElem.attribute( QStringLiteral( "lineSpacing" ), "1.0" ).toDouble() );
mSettings.setDrawRasterBorder( itemElem.attribute( QStringLiteral( "rasterBorder" ), QStringLiteral( "1" ) ) != QLatin1String( "0" ) );
mSettings.setRasterBorderColor( QgsSymbolLayerUtils::decodeColor( itemElem.attribute( QStringLiteral( "rasterBorderColor" ), QStringLiteral( "0,0,0" ) ) ) );
mSettings.setRasterBorderWidth( itemElem.attribute( QStringLiteral( "rasterBorderWidth" ), QStringLiteral( "0" ) ).toDouble() );
mSettings.setWrapChar( itemElem.attribute( QStringLiteral( "wrapChar" ) ) );
mSizeToContents = itemElem.attribute( QStringLiteral( "resizeToContents" ), QStringLiteral( "1" ) ) != QLatin1String( "0" );
//composer map
mLegendFilterByMap = itemElem.attribute( QStringLiteral( "legendFilterByMap" ), QStringLiteral( "0" ) ).toInt();
if ( !itemElem.attribute( QStringLiteral( "map" ) ).isEmpty() )
{
setComposerMap( mComposition->getComposerMapById( itemElem.attribute( QStringLiteral( "map" ) ).toInt() ) );
}
QDomElement oldLegendModelElem = itemElem.firstChildElement( QStringLiteral( "Model" ) );
if ( !oldLegendModelElem.isNull() )
{
// QGIS <= 2.4
QgsLayerTreeGroup* nodeRoot = new QgsLayerTreeGroup();
_readOldLegendGroup( oldLegendModelElem, nodeRoot, mComposition->project() );
setCustomLayerTree( nodeRoot );
}
else
{
// QGIS >= 2.6
QDomElement layerTreeElem = itemElem.firstChildElement( QStringLiteral( "layer-tree-group" ) );
setCustomLayerTree( QgsLayerTreeGroup::readXml( layerTreeElem ) );
}
//restore general composer item properties
QDomNodeList composerItemList = itemElem.elementsByTagName( QStringLiteral( "ComposerItem" ) );
if ( !composerItemList.isEmpty() )
{
QDomElement composerItemElem = composerItemList.at( 0 ).toElement();
_readXml( composerItemElem, doc );
}
// < 2.0 projects backward compatibility >>>>>
//title font
QString titleFontString = itemElem.attribute( QStringLiteral( "titleFont" ) );
if ( !titleFontString.isEmpty() )
{
rstyle( QgsLegendStyle::Title ).rfont().fromString( titleFontString );
}
//group font
QString groupFontString = itemElem.attribute( QStringLiteral( "groupFont" ) );
if ( !groupFontString.isEmpty() )
{
rstyle( QgsLegendStyle::Group ).rfont().fromString( groupFontString );
}
//layer font
QString layerFontString = itemElem.attribute( QStringLiteral( "layerFont" ) );
if ( !layerFontString.isEmpty() )
{
rstyle( QgsLegendStyle::Subgroup ).rfont().fromString( layerFontString );
}
//item font
QString itemFontString = itemElem.attribute( QStringLiteral( "itemFont" ) );
if ( !itemFontString.isEmpty() )
{
rstyle( QgsLegendStyle::SymbolLabel ).rfont().fromString( itemFontString );
}
if ( !itemElem.attribute( QStringLiteral( "groupSpace" ) ).isEmpty() )
{
rstyle( QgsLegendStyle::Group ).setMargin( QgsLegendStyle::Top, itemElem.attribute( QStringLiteral( "groupSpace" ), QStringLiteral( "3.0" ) ).toDouble() );
}
if ( !itemElem.attribute( QStringLiteral( "layerSpace" ) ).isEmpty() )
{
rstyle( QgsLegendStyle::Subgroup ).setMargin( QgsLegendStyle::Top, itemElem.attribute( QStringLiteral( "layerSpace" ), QStringLiteral( "3.0" ) ).toDouble() );
}
if ( !itemElem.attribute( QStringLiteral( "symbolSpace" ) ).isEmpty() )
{
rstyle( QgsLegendStyle::Symbol ).setMargin( QgsLegendStyle::Top, itemElem.attribute( QStringLiteral( "symbolSpace" ), QStringLiteral( "2.0" ) ).toDouble() );
rstyle( QgsLegendStyle::SymbolLabel ).setMargin( QgsLegendStyle::Top, itemElem.attribute( QStringLiteral( "symbolSpace" ), QStringLiteral( "2.0" ) ).toDouble() );
}
// <<<<<<< < 2.0 projects backward compatibility
emit itemChanged();
return true;
}