Case Study: adding data and statistics

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

diff --git a/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/LayoutUtil.java b/case-study/jdt-before/ui/org/eclipse/jdt/internal/ui/wizards/dialogfields/LayoutUtil.java
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+/*******************************************************************************
+ * Copyright (c) 2000, 2010 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
+ *     Guven Demir <guven.internet+eclipse@gmail.com> - [package explorer] Alternative package name shortening: abbreviation - https://bugs.eclipse.org/bugs/show_bug.cgi?id=299514
+ *******************************************************************************/
+package org.eclipse.jdt.internal.ui.wizards.dialogfields;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+
+public class LayoutUtil {
+
+       /**
+        * Calculates the number of columns needed by field editors
+        */
+       public static int getNumberOfColumns(DialogField[] editors) {
+               int nCulumns= 0;
+               for (int i= 0; i < editors.length; i++) {
+                       nCulumns= Math.max(editors[i].getNumberOfControls(), nCulumns);
+               }
+               return nCulumns;
+       }
+
+       /**
+        * Creates a composite and fills in the given editors.
+        * @param labelOnTop Defines if the label of all fields should be on top of the fields
+        */
+       public static void doDefaultLayout(Composite parent, DialogField[] editors, boolean labelOnTop) {
+               doDefaultLayout(parent, editors, labelOnTop, 0, 0);
+       }
+
+       /**
+        * Creates a composite and fills in the given editors.
+        * @param labelOnTop Defines if the label of all fields should be on top of the fields
+        * @param marginWidth The margin width to be used by the composite
+        * @param marginHeight The margin height to be used by the composite
+        */
+       public static void doDefaultLayout(Composite parent, DialogField[] editors, boolean labelOnTop, int marginWidth, int marginHeight) {
+               int nCulumns= getNumberOfColumns(editors);
+               Control[][] controls= new Control[editors.length][];
+               for (int i= 0; i < editors.length; i++) {
+                       controls[i]= editors[i].doFillIntoGrid(parent, nCulumns);
+               }
+               if (labelOnTop) {
+                       nCulumns--;
+                       modifyLabelSpans(controls, nCulumns);
+               }
+               GridLayout layout= null;
+               if (parent.getLayout() instanceof GridLayout) {
+                       layout= (GridLayout) parent.getLayout();
+               } else {
+                       layout= new GridLayout();
+               }
+               if (marginWidth != SWT.DEFAULT) {
+                       layout.marginWidth= marginWidth;
+               }
+               if (marginHeight != SWT.DEFAULT) {
+                       layout.marginHeight= marginHeight;
+               }
+               layout.numColumns= nCulumns;
+               parent.setLayout(layout);
+       }
+
+       private static void modifyLabelSpans(Control[][] controls, int nCulumns) {
+               for (int i= 0; i < controls.length; i++) {
+                       setHorizontalSpan(controls[i][0], nCulumns);
+               }
+       }
+
+       /**
+        * Sets the span of a control. Assumes that GridData is used.
+        */
+       public static void setHorizontalSpan(Control control, int span) {
+               Object ld= control.getLayoutData();
+               if (ld instanceof GridData) {
+                       ((GridData)ld).horizontalSpan= span;
+               } else if (span != 1) {
+                       GridData gd= new GridData();
+                       gd.horizontalSpan= span;
+                       control.setLayoutData(gd);
+               }
+       }
+
+       /**
+        * Sets the width hint of a control. Assumes that GridData is used.
+        */
+       public static void setWidthHint(Control control, int widthHint) {
+               Object ld= control.getLayoutData();
+               if (ld instanceof GridData) {
+                       ((GridData)ld).widthHint= widthHint;
+               }
+       }
+
+       /**
+        * Sets the heightHint hint of a control. Assumes that GridData is used.
+        */
+       public static void setHeightHint(Control control, int heightHint) {
+               Object ld= control.getLayoutData();
+               if (ld instanceof GridData) {
+                       ((GridData)ld).heightHint= heightHint;
+               }
+       }
+
+       /**
+        * Sets the horizontal indent of a control. Assumes that GridData is used.
+        */
+       public static void setHorizontalIndent(Control control, int horizontalIndent) {
+               Object ld= control.getLayoutData();
+               if (ld instanceof GridData) {
+                       ((GridData)ld).horizontalIndent= horizontalIndent;
+               }
+       }
+
+       /**
+        * Sets the horizontal grabbing of a control to true. Assumes that GridData is used.
+        */
+       public static void setHorizontalGrabbing(Control control) {
+               Object ld= control.getLayoutData();
+               if (ld instanceof GridData) {
+                       ((GridData)ld).grabExcessHorizontalSpace= true;
+               }
+       }
+
+       /**
+        * Sets the vertical grabbing of a control to true. Assumes that GridData is used.
+        * @since 3.6
+        */
+       public static void setVerticalGrabbing(Control control) {
+               Object ld= control.getLayoutData();
+               if (ld instanceof GridData) {
+                       GridData gd= ((GridData)ld);
+                       gd.grabExcessVerticalSpace= true;
+                       gd.verticalAlignment= SWT.FILL;
+               }
+       }
+
+}