Case Study: adding data and statistics

[ifi-stolz-refaktor.git] / case-study / jdt-before / ui / org / eclipse / jdt / internal / ui / wizards / dialogfields / Separator.java

diff --git a/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/Separator.java b/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/Separator.java
new file mode 100644 (file)
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+++ b/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/Separator.java
@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2011 IBM Corporation and others.
+ * 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:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.ui.wizards.dialogfields;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Label;
+
+/**
+ * Dialog field describing a separator.
+ */
+public class Separator extends DialogField {
+
+       private Label fSeparator;
+       private int fStyle;
+
+       public Separator() {
+               this(SWT.NONE);
+       }
+
+       /**
+        * @param style of the separator. See <code>Label</code> for possible
+        * styles.
+        */
+       public Separator(int style) {
+               super();
+               fStyle= style;
+       }
+
+       // ------- layout helpers
+
+       /**
+        * Creates the separator and fills it in a MGridLayout.
+        * @param height The height of the separator
+        */
+       public Control[] doFillIntoGrid(Composite parent, int nColumns, int height) {
+               assertEnoughColumns(nColumns);
+
+               Control separator= getSeparator(parent);
+               separator.setLayoutData(gridDataForSeperator(nColumns, height));
+
+               return new Control[] { separator };
+       }
+
+       /*
+        * @see DialogField#doFillIntoGrid
+        */
+       @Override
+       public Control[] doFillIntoGrid(Composite parent, int nColumns) {
+               return doFillIntoGrid(parent, nColumns, 4);
+       }
+
+       /*
+        * @see DialogField#getNumberOfControls
+        */
+       @Override
+       public int getNumberOfControls() {
+               return 1;
+       }
+
+       protected static GridData gridDataForSeperator(int span, int height) {
+               GridData gd= new GridData();
+               gd.horizontalAlignment= GridData.FILL;
+               gd.verticalAlignment= GridData.BEGINNING;
+               gd.heightHint= height;
+               gd.horizontalSpan= span;
+               return gd;
+       }
+
+       // ------- ui creation
+
+       /**
+        * Creates or returns the created separator.
+        * @param parent The parent composite or <code>null</code> if the widget has
+        * already been created.
+        */
+       public Control getSeparator(Composite parent) {
+               if (fSeparator == null) {
+                       assertCompositeNotNull(parent);
+                       fSeparator= new Label(parent, fStyle);
+               }
+               return fSeparator;
+       }
+
+}