Refactoring to get ride of 900 line method

CupPlugin/src/de/tum/in/www2/cupplugin/views/CupConflictsView.java

@@ -73,6 +73,42 @@ public class CupConflictsView extends FailableView implements ICupEditorPageVisi
 	class ShiftReduceDetails {
 		terminal shift,reduce;
 		boolean shiftAffectsOthers,reduceAffectsOthers;
+		
+		ShiftReduceDetails(ShiftReduceConflict src,ConflictResolutionManager crm){
+			shift = src.getTerminal();
+			reduce = null; 
+			
+			ProductionRight conflict1Ast = src.getConflictItem1().the_production().getAstNode();
+			
+			// If the precedence is specifically set via %prec
+			if(conflict1Ast.hasSpecifiedPrecedence()){
+				reduce = terminal.getShared(crm.getLaLrContext()).find(
+						conflict1Ast.getPrecedenceLike().getNameStringOrNull());
+			}
+			// Terminal defining precedence is the last one in the current production
+			else {
+				for(IProductionRightPart part : conflict1Ast.getList()){
+					if(part instanceof ProductionSymbolRef){
+						ProductionSymbolRef ppsr = (ProductionSymbolRef)part; 
+						
+						terminal candidate =  terminal.getShared(crm.getLaLrContext()).find(
+								ppsr.getNameStringOrNull());
+						
+						if(candidate != null){
+							reduce = candidate;
+						}
+					}
+				}
+			}
+			// RHS is only nonterminal and no %prec directive => sourceOfReducePrec == null
+			
+			shiftAffectsOthers = insertingPrecAffectsOtherConflicts(shift);
+			reduceAffectsOthers = insertingPrecAffectsOtherConflicts(reduce);
+		}
+		
+		boolean shiftAndReducePrecedenceFromSameTerminal(){
+			return shift.equals(reduce);
+		}
 	}
 	
 	public CupConflictsView(Composite realParent, Jumper jumper,CupTextEditor editor) {
@@ -252,7 +288,6 @@ public class CupConflictsView extends FailableView implements ICupEditorPageVisi
 		scrolled.setMinSize(list.computeSize(SWT.DEFAULT, SWT.DEFAULT));
 	}
 	
-
 	public void dispose() {
 		editor.getModel().unregisterModelObserver(this);		
 		Controller.getInstance(editor).unregisterObserver(this);
@@ -374,15 +409,13 @@ public class CupConflictsView extends FailableView implements ICupEditorPageVisi
 		
 		// Conflicts are part of current connected conflicts that are not resolved yet.
 		for(ConflictPanel p: conflictPanels){
-			if(p.partOfCurrentConnected){
-				if(p.resolutionOptions.getSelectionIndex() == 0){
+			if(p.requiresResolutionButNotChosen()) {
 					Shell shell = new Shell(Display.getCurrent());
 					MessageBox box = new MessageBox(shell,SWT.ICON_WARNING | SWT.OK);
 					box.setText("Information");
 					box.setMessage("Please choose a way to resolve all conflicts that are affected. Then click this button again.");
 					box.open();
 					return;
-				}
 			}
 		}