ElementWithLabelPropertySection.java example

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gmf-tooling-master
/**
 * Copyright (c) 2010-2012 ISBAN S.L
 * 
 * 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:
 * 		Ruben De Dios (ISBAN S.L)
 * 		Andrez Alvarez Mattos (ISBAN S.L)
 */
package org.eclipse.gmf.tooling.simplemap.diagram.properties.figure;

import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.UpdateValueStrategy;
import org.eclipse.emf.databinding.EMFProperties;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.gmfgraph.DiagramLabel;
import org.eclipse.gmf.gmfgraph.Figure;
import org.eclipse.gmf.gmfgraph.FontStyle;
import org.eclipse.gmf.gmfgraph.GMFGraphPackage;
import org.eclipse.gmf.runtime.diagram.ui.internal.util.FontHelper;
import org.eclipse.gmf.runtime.diagram.ui.l10n.DiagramUIMessages;
import org.eclipse.gmf.runtime.diagram.ui.properties.internal.l10n.DiagramUIPropertiesImages;
import org.eclipse.gmf.runtime.diagram.ui.properties.internal.l10n.DiagramUIPropertiesMessages;
import org.eclipse.gmf.tooling.simplemap.diagram.properties.AbstractExtendedPropertiesSection;
import org.eclipse.gmf.tooling.simplemap.simplemappings.SimpleCompartment;
import org.eclipse.gmf.tooling.simplemap.simplemappings.SimpleLabelNode;
import org.eclipse.gmf.tooling.simplemap.simplemappings.SimpleLinkMapping;
import org.eclipse.gmf.tooling.simplemap.simplemappings.SimpleNode;
import org.eclipse.jface.databinding.swt.WidgetProperties;
import org.eclipse.swt.SWT;
import org.eclipse.swt.accessibility.AccessibleAdapter;
import org.eclipse.swt.accessibility.AccessibleEvent;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;

public abstract class ElementWithLabelPropertySection extends AbstractExtendedPropertiesSection {

	protected static final String FONTS_AND_COLORS_LABEL = DiagramUIPropertiesMessages.FontAndColor_nameLabel;

	// font family drop down
	protected CCombo fontFamilyCombo;

	// font size drop down
	private CCombo fontSizeCombo;

	private Button fontBoldButton;

	private Button fontItalicButton;

	protected Group fontsGroup;

	private DataBindingContext bindingContext = new DataBindingContext();;

	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.gmf.runtime.diagram.ui.properties.sections.
	 * AbstractNotationPropertiesSection
	 * #initializeControls(org.eclipse.swt.widgets.Composite)
	 */
	protected void initializeControls(Composite parent) {
		super.initializeControls(parent);
		createFontsAndColorsGroups(composite);
	}

	/**
	 * Create  fonts and colors group
	 * 
	 * @param parent - parent composite
	 */
	protected Group createFontsAndColorsGroups(Composite parent) {
		fontsGroup = getWidgetFactory().createGroup(parent, FONTS_AND_COLORS_LABEL);
		GridLayout layout = new GridLayout(1, false);
		fontsGroup.setLayout(layout);

		createFontsGroup(fontsGroup);

		return fontsGroup;

	}

	/**
	 * Create  font tool bar group
	 * 
	 * @param parent - parent composite
	 * @return - font tool bar
	 */
	protected Composite createFontsGroup(Composite parent) {
		Composite familySize = getWidgetFactory().createComposite(parent);
		GridLayout layout = new GridLayout(2, false);
		layout.horizontalSpacing = 0;
		layout.verticalSpacing = 0;
		layout.marginHeight = 0;
		layout.marginWidth = 0;
		familySize.setLayout(layout);

		fontFamilyCombo = getWidgetFactory().createCCombo(familySize, SWT.DROP_DOWN | SWT.READ_ONLY | SWT.BORDER);
		fontFamilyCombo.setItems(FontHelper.getFontNames());

		fontSizeCombo = getWidgetFactory().createCCombo(familySize, SWT.DROP_DOWN | SWT.READ_ONLY | SWT.BORDER);
		fontSizeCombo.setItems(FontHelper.getFontSizes());

		Composite toolBar = new Composite(parent, SWT.SHADOW_NONE);
		toolBar.setLayout(new GridLayout(7, false));
		toolBar.setBackground(parent.getBackground());

		fontBoldButton = new Button(toolBar, SWT.TOGGLE);
		fontBoldButton.setImage(DiagramUIPropertiesImages.get(DiagramUIPropertiesImages.IMG_BOLD));
		fontBoldButton.getAccessible().addAccessibleListener(new AccessibleAdapter() {

			public void getName(AccessibleEvent e) {
				e.result = DiagramUIMessages.PropertyDescriptorFactory_FontStyle_Bold;
			}
		});

		fontItalicButton = new Button(toolBar, SWT.TOGGLE);
		fontItalicButton.setImage(DiagramUIPropertiesImages.get(DiagramUIPropertiesImages.IMG_ITALIC));
		fontItalicButton.getAccessible().addAccessibleListener(new AccessibleAdapter() {

			public void getName(AccessibleEvent e) {
				e.result = DiagramUIMessages.PropertyDescriptorFactory_FontStyle_Italic;
			}
		});

		return toolBar;
	}

	protected Figure getLabelFigure(Object transformSelection) {
		Figure figure = null;

		if (transformSelection instanceof SimpleNode) {
			DiagramLabel diagramLabel = ((SimpleNode) transformSelection).getDiagramLabel();
			if (diagramLabel != null && diagramLabel.getAccessor() != null)
				figure = diagramLabel.getAccessor().getFigure();
		}

		if (transformSelection instanceof SimpleLabelNode) {
			figure = ((SimpleNode) transformSelection).getDiagramLabel().getFigure().getActualFigure();
		}

		if (transformSelection instanceof SimpleCompartment) {
			figure = ((SimpleCompartment) transformSelection).getCompartment().getFigure().getActualFigure();
		}

		if (transformSelection instanceof SimpleLinkMapping) {
			figure = ((SimpleLinkMapping) transformSelection).getDiagramLabel().getFigure().getActualFigure();

		}

		return figure;
	}

	@Override
	public void dispose() {

		if (bindingContext != null)
			bindingContext.dispose();

		if (fontFamilyCombo != null)
			fontFamilyCombo.dispose();

		if (fontSizeCombo != null)
			fontSizeCombo.dispose();

		if (fontBoldButton != null)
			fontBoldButton.dispose();

		if (fontItalicButton != null)
			fontItalicButton.dispose();

		super.dispose();
	}

	/**
	 * @param object
	 *            The eObject to set.
	 */
	protected void setEObject(EObject object) {
		this.eObject = object;

		bindingContext.bindValue(WidgetProperties.selection().observe(fontFamilyCombo), EMFProperties.value(GMFGraphPackage.eINSTANCE.getBasicFont_FaceName()).observe(eObject));

		bindingContext.bindValue(WidgetProperties.selection().observe(fontSizeCombo), EMFProperties.value(GMFGraphPackage.eINSTANCE.getBasicFont_Height()).observe(eObject),
				new UpdateSizeTargetToModel(), new UpdateSizeModelToTarget());

		bindingContext.bindValue(WidgetProperties.selection().observe(fontBoldButton), EMFProperties.value(GMFGraphPackage.eINSTANCE.getBasicFont_Style()).observe(eObject),
				new UpdateBoldButtonTargetToModel(), new UpdateBoldButtonModelToTarget());

	}

	class UpdateSizeTargetToModel extends UpdateValueStrategy {

		@Override
		public Object convert(Object value) {
			// TODO Auto-generated method stub
			return Integer.parseInt((String) value);
		}

	}

	class UpdateSizeModelToTarget extends UpdateValueStrategy {

		@Override
		public Object convert(Object value) {
			// TODO Auto-generated method stub
			return Integer.toString((Integer) value);
		}

	}

	class UpdateBoldButtonTargetToModel extends UpdateValueStrategy {

		@Override
		public Object convert(Object value) {
			boolean isBold = (Boolean) value;
			FontStyle style = isBold ? FontStyle.BOLD_LITERAL : FontStyle.NORMAL_LITERAL;
			return style;
		}

	}

	class UpdateBoldButtonModelToTarget extends UpdateValueStrategy {

		@Override
		public Object convert(Object value) {
			return value == FontStyle.BOLD_LITERAL;
		}

	}
}