/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.eclipse.org/org/documents/epl-v10.php
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.ide.eclipse.adt.internal.editors.ui;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
/**
* A little helper to create a new {@link GridLayout}, associate to a {@link Composite}
* and set its common attributes.
* <p/>
* Example of usage: <br/>
* <code>
* GridLayoutHelper.create(myComposite).noMargins().vSpacing(0).columns(2);
* </code>
*/
public final class GridLayoutBuilder {
private static GridLayout mGL;
private GridLayoutBuilder() {
mGL = new GridLayout();
}
/**
* Creates new {@link GridLayout} and associates it on the <code>parent</code> composite.
*/
static public GridLayoutBuilder create(Composite parent) {
GridLayoutBuilder glh = new GridLayoutBuilder();
parent.setLayout(glh.mGL);
return glh;
}
/** Sets all margins to 0. */
public GridLayoutBuilder noMargins() {
mGL.marginHeight = 0;
mGL.marginWidth = 0;
mGL.marginLeft = 0;
mGL.marginTop = 0;
mGL.marginRight = 0;
mGL.marginBottom = 0;
return this;
}
/** Sets all margins to <code>n</code>. */
public GridLayoutBuilder margins(int n) {
mGL.marginHeight = n;
mGL.marginWidth = n;
mGL.marginLeft = n;
mGL.marginTop = n;
mGL.marginRight = n;
mGL.marginBottom = n;
return this;
}
/** Sets <code>numColumns</code> to <code>n</code>. */
public GridLayoutBuilder columns(int n) {
mGL.numColumns = n;
return this;
}
/** Sets <code>makeColumnsEqualWidth</code> to true. */
public GridLayoutBuilder columnsEqual() {
mGL.makeColumnsEqualWidth = true;
return this;
}
/** Sets <code>verticalSpacing</code> to <code>v</code>. */
public GridLayoutBuilder vSpacing(int v) {
mGL.verticalSpacing = v;
return this;
}
/** Sets <code>horizontalSpacing</code> to <code>h</code>. */
public GridLayoutBuilder hSpacing(int h) {
mGL.horizontalSpacing = h;
return this;
}
/**
* Sets <code>horizontalSpacing</code> and <code>verticalSpacing</code>
* to <code>s</code>.
*/
public GridLayoutBuilder spacing(int s) {
mGL.verticalSpacing = s;
mGL.horizontalSpacing = s;
return this;
}
}