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/**
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*
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*/
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package eu.etaxonomy.taxeditor.ui.element;
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import java.net.URI;
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import org.eclipse.swt.SWT;
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import org.eclipse.swt.browser.Browser;
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import org.eclipse.swt.events.ControlEvent;
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import org.eclipse.swt.events.ControlListener;
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import org.eclipse.swt.graphics.Rectangle;
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import org.eclipse.ui.forms.widgets.TableWrapData;
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/**
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* <p>BrowserElement class.</p>
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*
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* @author n.hoffmann
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* @version $Id: $
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*/
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public class BrowserElement extends AbstractCdmFormElement implements ControlListener{
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private Browser browser;
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private String imageUriString;
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/**
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* <p>Constructor for BrowserElement.</p>
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*
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* @param style a int.
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* @param formFactory a {@link eu.etaxonomy.taxeditor.ui.element.CdmFormFactory} object.
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* @param parentElement a {@link eu.etaxonomy.taxeditor.ui.element.ICdmFormElement} object.
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* @param imageUri a {@link java.net.URI} object.
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*/
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protected BrowserElement(CdmFormFactory formFactory, ICdmFormElement parentElement, URI imageUri, int style) {
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super(formFactory, parentElement);
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formFactory.createLabel(getLayoutComposite(), "");
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browser = new Browser(getLayoutComposite(), SWT.NONE);
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addControl(browser);
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getLayoutComposite().setLayoutData(LayoutConstants.FILL());
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layoutBrowser();
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showBrowser();
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browser.addControlListener(this);
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this.setImageUri(imageUri);
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}
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/**
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*
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*/
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private void layoutBrowser() {
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TableWrapData layoutData = LayoutConstants.FILL();
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layoutData.heightHint = 1000;
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browser.setLayoutData(layoutData);
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}
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/**
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*
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*/
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private void showBrowser() {
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String html = "";
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html = "<HTML><HEAD><TITLE></TITLE></HEAD><BODY marginwidth=0 marginheight=0 leftmargin=0 topmargin=0>";
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html += "<img width=\"" + calculateWidth() + "\" src=\"" + getImageUriString() + "\" />";
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html += "</BODY></HTML>";
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browser.setText(html);
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}
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/**
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* <p>calculateWidth</p>
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*
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* @return a int.
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*/
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public int calculateWidth() {
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Rectangle boundaries = browser.getBounds();
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return boundaries.width;
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}
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/* (non-Javadoc)
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* @see org.eclipse.swt.events.ControlListener#controlMoved(org.eclipse.swt.events.ControlEvent)
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*/
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/** {@inheritDoc} */
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public void controlMoved(ControlEvent e) {
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showBrowser();
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}
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/* (non-Javadoc)
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* @see org.eclipse.swt.events.ControlListener#controlResized(org.eclipse.swt.events.ControlEvent)
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*/
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/** {@inheritDoc} */
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public void controlResized(ControlEvent e) {
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showBrowser();
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}
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/**
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* <p>setImageUri</p>
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*
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* @param imageUri the imageUri to set
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*/
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public void setImageUri(URI imageUri) {
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setImageUriString(imageUri != null ? imageUri.toString() : "");
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}
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/**
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* <p>Setter for the field <code>imageUriString</code>.</p>
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*
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* @param imageUriString a {@link java.lang.String} object.
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*/
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public void setImageUriString(String imageUriString){
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this.imageUriString = imageUriString;
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showBrowser();
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}
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/**
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* <p>Getter for the field <code>imageUriString</code>.</p>
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*
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* @return the imageUri
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*/
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public String getImageUriString() {
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return imageUriString;
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}
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}
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