trunk/simple/src/main/java/org/odftoolkit/simple/draw/ControlStyleHandler.java

/* 
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements.  See the NOTICE file
distributed with this work for additional information
regarding copyright ownership.  The ASF licenses this file
to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0

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 org.odftoolkit.simple.draw;

import org.odftoolkit.odfdom.dom.element.draw.DrawControlElement;
import org.odftoolkit.simple.Document;
import org.odftoolkit.simple.style.DefaultStyleHandler;
import org.odftoolkit.simple.style.GraphicProperties;
import org.odftoolkit.simple.style.StyleTypeDefinitions;
import org.odftoolkit.simple.style.StyleTypeDefinitions.FrameHorizontalPosition;
import org.odftoolkit.simple.style.StyleTypeDefinitions.FrameVerticalPosition;
import org.odftoolkit.simple.style.StyleTypeDefinitions.HorizontalRelative;
import org.odftoolkit.simple.style.StyleTypeDefinitions.VerticalRelative;

/**
 * This class provides functions to handle the style of a form control.
 * 
 * @since 0.8
 */
public class ControlStyleHandler extends DefaultStyleHandler {

	private Control mControl;

	public ControlStyleHandler(Control control) {
		super(control.getOdfElement());
		mControl = control;
	}

	/**
	 * Set how a form control is bound to a text document. Default position
	 * relative and alignment will be set.
	 * 
	 * <p>
	 * If the document is not text document, nothing will happen.
	 * 
	 * @param achorType
	 *            - the point at which a form control is bound to a text
	 *            document
	 */
	public void setAchorType(StyleTypeDefinitions.AnchorType achorType) {
		if (!mDocument.getMediaTypeString().equals(
				Document.OdfMediaType.TEXT.getMediaTypeString())
				&& !mDocument.getMediaTypeString().equals(
						Document.OdfMediaType.TEXT_TEMPLATE
								.getMediaTypeString()))
			return;
		GraphicProperties graphicPropertiesForWrite = getGraphicPropertiesForWrite();

		DrawControlElement controlElement = (DrawControlElement) mOdfElement;
		controlElement.setTextAnchorTypeAttribute(achorType.toString());

		// set default relative
		switch (achorType) {
		case AS_CHARACTER:
			graphicPropertiesForWrite
					.setVerticalRelative(VerticalRelative.BASELINE);
			graphicPropertiesForWrite
					.setVerticalPosition(FrameVerticalPosition.TOP);
			break;
		case TO_CHARACTER:
			graphicPropertiesForWrite
					.setVerticalRelative(VerticalRelative.PARAGRAPH);
			graphicPropertiesForWrite
					.setVerticalPosition(FrameVerticalPosition.TOP);
			graphicPropertiesForWrite
					.setHorizontalRelative(HorizontalRelative.PARAGRAPH);
			graphicPropertiesForWrite
					.setHorizontalPosition(FrameHorizontalPosition.CENTER);
			break;
		case TO_PAGE:
			controlElement.setTextAnchorPageNumberAttribute(Integer.valueOf(1));
			graphicPropertiesForWrite
					.setVerticalRelative(VerticalRelative.PAGE);
			graphicPropertiesForWrite
					.setVerticalPosition(FrameVerticalPosition.FROMTOP);
			graphicPropertiesForWrite
					.setHorizontalRelative(HorizontalRelative.PARAGRAPH);
			graphicPropertiesForWrite
					.setHorizontalPosition(FrameHorizontalPosition.FROMLEFT);
			break;
		case TO_PARAGRAPH:
			graphicPropertiesForWrite
					.setVerticalRelative(VerticalRelative.PARAGRAPH);
			graphicPropertiesForWrite
					.setVerticalPosition(FrameVerticalPosition.TOP);
			graphicPropertiesForWrite
					.setHorizontalRelative(HorizontalRelative.PARAGRAPH);
			graphicPropertiesForWrite
					.setHorizontalPosition(FrameHorizontalPosition.CENTER);
			break;
		case TO_FRAME:
			break;
		}
	}
}