arthemus · August 29, 2015 14:15 · Jul 25, 2013
diff --git a/GridDataUtil.java b/GridDataUtil.java
@@ -0,0 +1,126 @@
+package com.eclipsesource.swt.util;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Control;
+
+public class GridDataUtil {
+
+  private final GridData gridData;
+
+  private GridDataUtil( GridData gridData ) {
+    this.gridData = gridData;
+  }
+
+  public static GridDataUtil applyGridData( Control control ) {
+    GridData gridData = new GridData();
+    control.setLayoutData( gridData );
+    return new GridDataUtil( gridData );
+  }
+
+  public static GridDataUtil onGridData( Control control ) {
+    Object layoutData = control.getLayoutData();
+    if( layoutData instanceof GridData ) {
+      return new GridDataUtil( ( GridData )layoutData );
+    }
+    throw new IllegalStateException( "Control must have GridData layout data. Has " + layoutData );
+  }
+
+  public GridDataUtil withHorizontalFill() {
+    gridData.horizontalAlignment = SWT.FILL;
+    gridData.verticalAlignment = SWT.CENTER;
+    gridData.grabExcessHorizontalSpace = true;
+    gridData.grabExcessVerticalSpace = false;
+    return this;
+  }
+
+  public GridDataUtil withVerticalFill() {
+    gridData.horizontalAlignment = SWT.TOP;
+    gridData.verticalAlignment = SWT.FILL;
+    gridData.grabExcessHorizontalSpace = false;
+    gridData.grabExcessVerticalSpace = true;
+    return this;
+  }
+
+  public GridDataUtil withFill() {
+    gridData.horizontalAlignment = SWT.FILL;
+    gridData.verticalAlignment = SWT.FILL;
+    gridData.grabExcessHorizontalSpace = true;
+    gridData.grabExcessVerticalSpace = true;
+    return this;
+  }
+
+  public GridDataUtil withCenterCollapse() {
+    gridData.horizontalAlignment = SWT.CENTER;
+    gridData.verticalAlignment = SWT.CENTER;
+    gridData.grabExcessHorizontalSpace = false;
+    gridData.grabExcessVerticalSpace = false;
+    return this;
+  }
+
+  public GridDataUtil grabExcessHorizontalSpace( boolean grabExcessHorizontalSpace ) {
+    gridData.grabExcessHorizontalSpace = grabExcessHorizontalSpace;
+    return this;
+  }
+
+  public GridDataUtil grabExcessVerticalSpace( boolean grabExcessVerticalSpace ) {
+    gridData.grabExcessVerticalSpace = grabExcessVerticalSpace;
+    return this;
+  }
+
+  public GridDataUtil horizontalSpan( int horizontalSpan ) {
+    gridData.horizontalSpan = horizontalSpan;
+    return this;
+  }
+
+  public GridDataUtil verticalSpan( int verticalSpan ) {
+    gridData.verticalSpan = verticalSpan;
+    return this;
+  }
+
+  public GridDataUtil minimumHeight( int minimumHeight ) {
+    gridData.minimumHeight = minimumHeight;
+    return this;
+  }
+
+  public GridDataUtil minimumWidth( int minimumWidth ) {
+    gridData.minimumWidth = minimumWidth;
+    return this;
+  }
+
+  public GridDataUtil verticalIndent( int verticalIndent ) {
+    gridData.verticalIndent = verticalIndent;
+    return this;
+  }
+
+  public GridDataUtil horizontalIndent( int horizontalIndent ) {
+    gridData.horizontalIndent = horizontalIndent;
+    return this;
+  }
+
+  public GridDataUtil heightHint( int heightHint ) {
+    gridData.heightHint = heightHint;
+    return this;
+  }
+
+  public GridDataUtil widthHint( int widthHint ) {
+    gridData.widthHint = widthHint;
+    return this;
+  }
+
+  public GridDataUtil verticalAlignment( int verticalAlignment ) {
+    gridData.verticalAlignment = verticalAlignment;
+    return this;
+  }
+
+  public GridDataUtil horizontalAlignment( int horizontalAlignment ) {
+    gridData.horizontalAlignment = horizontalAlignment;
+    return this;
+  }
+
+  public GridDataUtil exclude( boolean exclude ) {
+    gridData.exclude = exclude;
+    return this;
+  }
+
+}
diff --git a/GridLayoutUtil.java b/GridLayoutUtil.java
@@ -0,0 +1,83 @@
+package com.eclipsesource.swt.util;
+
+import org.eclipse.swt.layout.GridLayout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Layout;
+
+public class GridLayoutUtil {
+
+  private final GridLayout gridLayout;
+
+  private GridLayoutUtil( GridLayout gridLayout ) {
+    this.gridLayout = gridLayout;
+  }
+
+  public static GridLayoutUtil applyGridLayout( Composite composite ) {
+    GridLayout gridLayout = new GridLayout();
+    gridLayout.marginHeight = 0;
+    gridLayout.marginWidth = 0;
+    gridLayout.verticalSpacing = 0;
+    gridLayout.horizontalSpacing = 0;
+    composite.setLayout( gridLayout );
+    return new GridLayoutUtil( gridLayout );
+  }
+
+  public static GridLayoutUtil onGridLayout( Composite composite ) {
+    Layout layout = composite.getLayout();
+    if( layout instanceof GridLayout ) {
+      return new GridLayoutUtil( ( GridLayout )layout );
+    }
+    throw new IllegalStateException( "Composite has to have a GridLayout. Has " + layout );
+  }
+
+  public GridLayoutUtil numColumns( int numColumns ) {
+    gridLayout.numColumns = numColumns;
+    return this;
+  }
+
+  public GridLayoutUtil columnsEqualWidth( boolean columnsEqualWidth ) {
+    gridLayout.makeColumnsEqualWidth = columnsEqualWidth;
+    return this;
+  }
+
+  public GridLayoutUtil horizontalSpacing( int horizontalSpacing ) {
+    gridLayout.horizontalSpacing = horizontalSpacing;
+    return this;
+  }
+
+  public GridLayoutUtil verticalSpacing( int verticalSpacing ) {
+    gridLayout.verticalSpacing = verticalSpacing;
+    return this;
+  }
+
+  public GridLayoutUtil marginWidth( int marginWidth ) {
+    gridLayout.marginWidth = marginWidth;
+    return this;
+  }
+
+  public GridLayoutUtil marginHeight( int marginHeight ) {
+    gridLayout.marginHeight = marginHeight;
+    return this;
+  }
+
+  public GridLayoutUtil marginTop( int marginTop ) {
+    gridLayout.marginTop = marginTop;
+    return this;
+  }
+
+  public GridLayoutUtil marginBottom( int marginBottom ) {
+    gridLayout.marginBottom = marginBottom;
+    return this;
+  }
+
+  public GridLayoutUtil marginLeft( int marginLeft ) {
+    gridLayout.marginLeft = marginLeft;
+    return this;
+  }
+
+  public GridLayoutUtil marginRight( int marginRight ) {
+    gridLayout.marginRight = marginRight;
+    return this;
+  }
+
+}