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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
* 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.css.provider;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.papyrus.infra.emf.appearance.helper.VisualInformationPapyrusConstants;
import org.eclipse.papyrus.infra.emf.appearance.style.AnnotationStyleProvider;
import org.eclipse.papyrus.infra.emf.appearance.style.AppearanceStyleProvider;
import org.eclipse.papyrus.infra.gmfdiag.css.engine.ExtendedCSSEngine;
import org.eclipse.papyrus.infra.gmfdiag.css.helper.CSSDOMSemanticElementHelper;
import org.eclipse.papyrus.infra.gmfdiag.css.helper.StringHelper;
import org.w3c.dom.Element;
import org.w3c.dom.css.CSSValue;
/**
* Standard implementation of Papyrus Custom Style, CSS-based
*
* @author Camille Letavernier
*/
//FIXME: Use constants for the CSS Properties elementIcon, qualifiedNameDepth and shadow
@SuppressWarnings("restriction")
public class CSSCustomStyleDelegate implements CustomStyle {
private View view;
private ExtendedCSSEngine engine;
private Element element;
private static final String NONE = "none";
private static final String FULL = "full";
private static int NONE_VALUE = 1000;
private static int FULL_VALUE = 0;
private static final AppearanceStyleProvider provider = new AnnotationStyleProvider();
/**
* Constructor
*
* @param view
* The GMF view on which the custom style is applied
* @param engine
* The CSS engine used to handle the custom properties
*/
public CSSCustomStyleDelegate(View view, ExtendedCSSEngine engine) {
this.view = CSSDOMSemanticElementHelper.findPrimaryView(view);
this.engine = engine;
this.element = engine.getElement(this.view);
}
@Override
public boolean showElementIcon() {
EAnnotation displayNameLabelIcon = view.getEAnnotation(VisualInformationPapyrusConstants.DISPLAY_NAMELABELICON);
if(displayNameLabelIcon != null) {
return provider.showElementIcon(view);
}
CSSValue cssValue = engine.retrievePropertyValue(element, "elementIcon");
if(cssValue == null) {
return false;
}
return (Boolean)engine.convert(cssValue, Boolean.class, null);
}
@Override
public int getQualifiedNameDepth() {
EAnnotation qualifiedNameAnnotation = view.getEAnnotation(VisualInformationPapyrusConstants.QUALIFIED_NAME);
if(qualifiedNameAnnotation != null) {
return provider.getQualifiedNameDepth(view);
}
CSSValue cssValue = engine.retrievePropertyValue(element, "qualifiedNameDepth");
if(cssValue == null) {
return NONE_VALUE;
}
String cssText = cssValue.getCssText();
if(StringHelper.equals(FULL, cssText)) {
return FULL_VALUE;
}
if(StringHelper.equals(NONE, cssText)) {
return NONE_VALUE;
}
try {
int value = Integer.parseInt(cssText);
return value > 0 ? -value : value;
} catch (NumberFormatException ex) {
engine.handleExceptions(ex);
return NONE_VALUE;
}
}
@Override
public boolean showShadow() {
EAnnotation shadowAnnotation = view.getEAnnotation(VisualInformationPapyrusConstants.SHADOWFIGURE);
if(shadowAnnotation != null) {
return provider.showShadow(view);
}
CSSValue cssValue = engine.retrievePropertyValue(element, "shadow");
if(cssValue == null) {
return false;
}
return (Boolean)engine.convert(cssValue, Boolean.class, null);
}
}
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