org.eclipse.osbp.xtext.datamartdsl/src/org/eclipse/osbp/xtext/datamartdsl/formatting/DatamartDSLFormatter.xtend

/*
 *
 *  Copyright (c) 2011, 2016 - Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *
 *  All rights reserved. This program and the accompanying materials
 *  are made available under the terms of the Eclipse Public License v1.0
 *  which accompanies this distribution, and is available at
 *  http://www.eclipse.org/legal/epl-v10.html
 *
 *  Contributors:
 * 	   Christophe Loetz (Loetz GmbH&Co.KG) - initial implementation
 *
 */
package org.eclipse.osbp.xtext.datamartdsl.formatting

import com.google.inject.Inject
import org.eclipse.osbp.utils.xtext.GenericFormatter
import org.eclipse.xtext.formatting.impl.AbstractDeclarativeFormatter
import org.eclipse.xtext.formatting.impl.FormattingConfig
import org.eclipse.xtext.xbase.services.XtypeGrammarAccess
import org.eclipse.xtext.ParserRule
import org.eclipse.xtext.GrammarUtil

//import org.eclipse.osbp.xtext.datamartdsl.services.DatamartDSLGrammarAccess

/**
 * This class contains custom formatting description.
 *
 * see : http://www.eclipse.org/Xtext/documentation.html#formatting
 * on how and when to use it
 *
 * Also see {@link org.eclipse.xtext.xtext.XtextFormattingTokenSerializer} as an example
 */
class DatamartDSLFormatter extends AbstractDeclarativeFormatter {

//	@Inject extension DatamartDSLGrammarAccess
	@Inject XtypeGrammarAccess grammarAccess

	override protected void configureFormatting(FormattingConfig c) {
		val genericFormatter	         = new GenericFormatter()
		var ParserRule referenceDef      = GrammarUtil.findRuleForName( grammar.grammar, "DatamartReference"             ) as ParserRule
		var ParserRule slicerDef         = GrammarUtil.findRuleForName( grammar.grammar, "DatamartSlicer"                ) as ParserRule
		var ParserRule hierarchyDef      = GrammarUtil.findRuleForName( grammar.grammar, "DatamartHierarchy"             ) as ParserRule
		var ParserRule measureDef        = GrammarUtil.findRuleForName( grammar.grammar, "DatamartMeasure"               ) as ParserRule
		var ParserRule numOrElementDef   = GrammarUtil.findRuleForName( grammar.grammar, "DatamartNumberOrElement"       ) as ParserRule
		var ParserRule conditionDef      = GrammarUtil.findRuleForName( grammar.grammar, "DatamartCondition"             ) as ParserRule
		var ParserRule condExprDef       = GrammarUtil.findRuleForName( grammar.grammar, "DatamartConditionalExpression" ) as ParserRule
//		var ParserRule propertyDef       = GrammarUtil.findRuleForName( grammar.grammar, "DatamartProperty"              ) as ParserRule
//		var ParserRule DerivedMeasureDef = GrammarUtil.findRuleForName( grammar.grammar, "DatamartDerivedMeasure"        ) as ParserRule
//		var ParserRule expressionDef     = GrammarUtil.findRuleForName( grammar.grammar, "Expression"                    ) as ParserRule
//		var ParserRule cubeElementDef    = GrammarUtil.findRuleForName( grammar.grammar, "DatamartCubeElement"           ) as ParserRule
//		var ParserRule paramFuncDef      = GrammarUtil.findRuleForName( grammar.grammar, "DatamartParameterFunction"     ) as ParserRule

		//	dsl-specific formatting:
		c.setNoLinewrap().before ( referenceDef    )
//		c.setNoLinewrap().before ( expressionDef   )
		c.setNoLinewrap().between( slicerDef   , hierarchyDef )
//		c.setNoLinewrap().between( conditionDef, propertyDef  )
		c.setNoLinewrap().between( conditionDef, condExprDef  )
		c.setNoLinewrap().between( hierarchyDef, measureDef   )
		c.setNoLinewrap().before ( numOrElementDef )

		//	common formatting:
		genericFormatter.formatFirstLevelBlocks( c, grammar.grammar, "DatamartDefinition", "DatamartImport" )
		genericFormatter.genericFormatting( c, grammar, grammarAccess )
	}
}