| /******************************************************************************* |
| * Copyright (c) 2011 Google, Inc. |
| * 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: |
| * Google, Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.wb.internal.core.utils.ui; |
| |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Layout; |
| |
| /** |
| * GridLayoutFactory provides a convenient shorthand for creating and initializing GridLayout. |
| * |
| * @author scheglov_ke |
| */ |
| public final class GridLayoutFactory { |
| private final GridLayout m_layout; |
| |
| //////////////////////////////////////////////////////////////////////////// |
| // |
| // Constructor |
| // |
| //////////////////////////////////////////////////////////////////////////// |
| private GridLayoutFactory(Composite composite, GridLayout layout) { |
| m_layout = layout; |
| composite.setLayout(m_layout); |
| } |
| |
| public static GridLayoutFactory create(Composite composite) { |
| return new GridLayoutFactory(composite, new GridLayout()); |
| } |
| |
| public static GridLayoutFactory modify(Composite composite) { |
| Layout layout = composite.getLayout(); |
| if (layout instanceof GridLayout) { |
| return new GridLayoutFactory(composite, (GridLayout) layout); |
| } |
| return create(composite); |
| } |
| |
| //////////////////////////////////////////////////////////////////////////// |
| // |
| // Access |
| // |
| //////////////////////////////////////////////////////////////////////////// |
| /** |
| * Sets number of columns in {@link GridLayout}. |
| */ |
| public GridLayoutFactory columns(int numColumns) { |
| m_layout.numColumns = numColumns; |
| return this; |
| } |
| |
| /** |
| * Specifies whether all columns in the layout will be forced to have the same width. |
| */ |
| public GridLayoutFactory equalColumns() { |
| m_layout.makeColumnsEqualWidth = true; |
| return this; |
| } |
| |
| /** |
| * Sets the horizontal margins. |
| */ |
| public GridLayoutFactory marginsH(int margins) { |
| m_layout.marginWidth = margins; |
| return this; |
| } |
| |
| /** |
| * Sets the vertical margins. |
| */ |
| public GridLayoutFactory marginsV(int margins) { |
| m_layout.marginHeight = margins; |
| return this; |
| } |
| |
| /** |
| * Sets the horizontal/vertical margins. |
| */ |
| public GridLayoutFactory margins(int margins) { |
| m_layout.marginWidth = m_layout.marginHeight = margins; |
| return this; |
| } |
| |
| /** |
| * Sets zero horizontal and vertical margins. |
| */ |
| public GridLayoutFactory noMargins() { |
| m_layout.marginWidth = m_layout.marginHeight = 0; |
| return this; |
| } |
| |
| /** |
| * Sets zero horizontal and vertical spacing. |
| */ |
| public GridLayoutFactory noSpacing() { |
| m_layout.horizontalSpacing = m_layout.verticalSpacing = 0; |
| return this; |
| } |
| |
| /** |
| * Sets horizontal spacing. |
| */ |
| public GridLayoutFactory spacingH(int spacing) { |
| m_layout.horizontalSpacing = spacing; |
| return this; |
| } |
| |
| /** |
| * Sets vertical spacing. |
| */ |
| public GridLayoutFactory spacingV(int spacing) { |
| m_layout.verticalSpacing = spacing; |
| return this; |
| } |
| } |