com.google.gdt.eclipse.designer.gwtext.model.layout.AnchorLayoutDataInfo.java Source code

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Here is the source code for com.google.gdt.eclipse.designer.gwtext.model.layout.AnchorLayoutDataInfo.java

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/*******************************************************************************
 * Copyright 2011 Google Inc. All Rights Reserved.
 *
 * 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
 *
 * 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.google.gdt.eclipse.designer.gwtext.model.layout;

import org.eclipse.wb.internal.core.model.JavaInfoEvaluationHelper;
import org.eclipse.wb.internal.core.model.creation.ConstructorCreationSupport;
import org.eclipse.wb.internal.core.model.creation.CreationSupport;
import org.eclipse.wb.internal.core.model.description.ComponentDescription;
import org.eclipse.wb.internal.core.model.property.Property;
import org.eclipse.wb.internal.core.model.util.PropertyUtils;
import org.eclipse.wb.internal.core.utils.ast.AstEditor;
import org.eclipse.wb.internal.core.utils.ast.DomGenerics;

import org.eclipse.jdt.core.dom.ClassInstanceCreation;
import org.eclipse.jdt.core.dom.Expression;

import org.apache.commons.lang.StringUtils;

/**
 * Model for <code>com.gwtext.client.widgets.layout.AnchorLayoutData</code>.
 * 
 * @author scheglov_ke
 * @coverage GWTExt.model.layout
 */
public final class AnchorLayoutDataInfo extends LayoutDataInfo {
    ////////////////////////////////////////////////////////////////////////////
    //
    // Constructor
    //
    ////////////////////////////////////////////////////////////////////////////
    public AnchorLayoutDataInfo(AstEditor editor, ComponentDescription description, CreationSupport creationSupport)
            throws Exception {
        super(editor, description, creationSupport);
    }

    ////////////////////////////////////////////////////////////////////////////
    //
    // Anchor
    //
    ////////////////////////////////////////////////////////////////////////////
    public Object getAnchor() throws Exception {
        if (getCreationSupport() instanceof ConstructorCreationSupport) {
            ConstructorCreationSupport creationSupport = (ConstructorCreationSupport) getCreationSupport();
            ClassInstanceCreation creation = creationSupport.getCreation();
            Expression anchorExpression = DomGenerics.arguments(creation).get(0);
            return JavaInfoEvaluationHelper.getValue(anchorExpression);
        }
        return Property.UNKNOWN_VALUE;
    }

    public void setAnchor(Object anchor) throws Exception {
        materialize();
        PropertyUtils.getByPath(this, "Constructor/anchor").setValue(anchor);
    }

    public void setAnchorWidth(String width) throws Exception {
        Object anchorObject = getAnchor();
        if (anchorObject == Property.UNKNOWN_VALUE) {
            setAnchor(width);
        } else {
            String anchor = (String) anchorObject;
            String[] anchorParts = StringUtils.split(anchor);
            if (anchorParts.length == 1) {
                if (anchor.startsWith(" ")) {
                    setAnchor(width + " " + anchor.trim());
                } else {
                    setAnchor(width);
                }
            } else if (anchorParts.length == 2) {
                setAnchor(width + " " + anchorParts[1]);
            }
        }
    }

    public void setAnchorHeight(String height) throws Exception {
        Object anchorObject = getAnchor();
        if (anchorObject == Property.UNKNOWN_VALUE) {
            setAnchor(" " + height);
        } else {
            String anchor = (String) anchorObject;
            String[] anchorParts = StringUtils.split(anchor);
            if (anchorParts.length == 1 && anchor.startsWith(" ")) {
                setAnchor(" " + height);
            } else if (anchorParts.length != 0) {
                setAnchor(anchorParts[0] + " " + height);
            }
        }
    }
}