avoid magic numbers

Change-Id: I6c60a17faad4d30ee64032568dca155d8677cb7d
diff --git a/dsl/org.eclipse.emf.parsley.dsl.ui/src/org/eclipse/emf/parsley/dsl/ui/wizard/EmfParsleyDslProjectCreatorCustom.java b/dsl/org.eclipse.emf.parsley.dsl.ui/src/org/eclipse/emf/parsley/dsl/ui/wizard/EmfParsleyDslProjectCreatorCustom.java
index 253fe55..fadd796 100644
--- a/dsl/org.eclipse.emf.parsley.dsl.ui/src/org/eclipse/emf/parsley/dsl/ui/wizard/EmfParsleyDslProjectCreatorCustom.java
+++ b/dsl/org.eclipse.emf.parsley.dsl.ui/src/org/eclipse/emf/parsley/dsl/ui/wizard/EmfParsleyDslProjectCreatorCustom.java
@@ -32,6 +32,8 @@
  * 
  */
 public class EmfParsleyDslProjectCreatorCustom extends EmfParsleyDslProjectCreator {
+	private static final int CREATING_PROJECT_WORK_STEPS = 5;
+
 	static EmfParsleyDslNewProjectFiles filesGenerator = new EmfParsleyDslNewProjectFiles();
 
 	static EmfParsleyProjectFilesGenerator projectFilesGenerator = new EmfParsleyProjectFilesGenerator();
@@ -107,7 +109,7 @@
 		
 		SubMonitor subMonitor = SubMonitor.convert(monitor, 
 				"Creating project " + projectName, 
-				5);
+				CREATING_PROJECT_WORK_STEPS);
 
 		String[] paths = { projectPackagePath };
 		NewEmfParsleyProjectSupport.addToProjectStructure(project, paths,
diff --git a/plugins/org.eclipse.emf.parsley.common/src/org/eclipse/emf/parsley/composite/AbstractControlFactory.java b/plugins/org.eclipse.emf.parsley.common/src/org/eclipse/emf/parsley/composite/AbstractControlFactory.java
index 2314aa9..41f48e6 100644
--- a/plugins/org.eclipse.emf.parsley.common/src/org/eclipse/emf/parsley/composite/AbstractControlFactory.java
+++ b/plugins/org.eclipse.emf.parsley.common/src/org/eclipse/emf/parsley/composite/AbstractControlFactory.java
@@ -77,6 +77,8 @@
  */
 public abstract class AbstractControlFactory implements IWidgetFactory {
 
+	private static final int GRID_DATA_HORIZONTAL_INDENT = 10;
+
 	private static final String OBSERVE_PREFIX = "observe_";
 
 	private static final String CONTROL_PREFIX = "control_";
@@ -486,7 +488,7 @@
 			// polymorphic implementation or from the DSL
 			if (c.getLayoutData()==null) {
 				GridData deafultLayout = new GridData(GridData.FILL_HORIZONTAL);
-				deafultLayout.horizontalIndent=10;
+				deafultLayout.horizontalIndent=GRID_DATA_HORIZONTAL_INDENT;
 				c.setLayoutData(deafultLayout);
 			}
 		}