bundles/org.eclipse.emf.ecp.view.label.ui.swt/src/org/eclipse/emf/ecp/view/spi/label/swt/LabelSWTRenderer.java - emfclient/org.eclipse.emf.ecp.core - Git at Google

 /**
  * Copyright (c) 2011-2013 EclipseSource Muenchen GmbH and others.
  *
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License 2.0
  * which accompanies this distribution, and is available at
  * https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  * Eugen Neufeld - initial API and implementation
  */
 package org.eclipse.emf.ecp.view.spi.label.swt;

 import java.util.HashMap;
 import java.util.Map;
 import java.util.Set;

 import javax.inject.Inject;

 import org.eclipse.core.databinding.Binding;
 import org.eclipse.core.databinding.DataBindingContext;
 import org.eclipse.core.databinding.observable.value.IObservableValue;
 import org.eclipse.emf.databinding.EMFDataBindingContext;
 import org.eclipse.emf.databinding.edit.EMFEditObservables;
 import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
 import org.eclipse.emf.ecp.view.spi.label.model.VLabel;
 import org.eclipse.emf.ecp.view.spi.label.model.VLabelStyle;
 import org.eclipse.emf.ecp.view.spi.model.VViewPackage;
 import org.eclipse.emf.ecp.view.spi.renderer.NoPropertyDescriptorFoundExeption;
 import org.eclipse.emf.ecp.view.spi.renderer.NoRendererFoundException;
 import org.eclipse.emf.ecp.view.spi.swt.reporting.RenderingFailedReport;
 import org.eclipse.emf.ecp.view.template.model.VTStyleProperty;
 import org.eclipse.emf.ecp.view.template.model.VTViewTemplateProvider;
 import org.eclipse.emf.ecp.view.template.style.fontProperties.model.VTFontPropertiesFactory;
 import org.eclipse.emf.ecp.view.template.style.fontProperties.model.VTFontPropertiesStyleProperty;
 import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
 import org.eclipse.emfforms.spi.common.report.ReportService;
 import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
 import org.eclipse.emfforms.spi.core.services.databinding.EMFFormsDatabinding;
 import org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer;
 import org.eclipse.emfforms.spi.swt.core.layout.GridDescriptionFactory;
 import org.eclipse.emfforms.spi.swt.core.layout.SWTGridCell;
 import org.eclipse.emfforms.spi.swt.core.layout.SWTGridDescription;
 import org.eclipse.jface.databinding.swt.ISWTObservableValue;
 import org.eclipse.jface.databinding.swt.WidgetProperties;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.DisposeEvent;
 import org.eclipse.swt.events.DisposeListener;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.graphics.FontData;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Label;

 /**
  * Renders an {@link VLabel} to a SWT {@link Label}.
  *
  * @since 1.5
  *
  */
 public class LabelSWTRenderer extends AbstractSWTRenderer<VLabel> {
 	private final EMFDataBindingContext dbc;
 	private final EMFFormsDatabinding emfFormsDatabinding;
 	private final VTViewTemplateProvider vtViewTemplateProvider;

 	/**
 	 * Default Constructor.
 	 *
 	 * @param vElement the view element to be rendered
 	 * @param viewContext The view model context
 	 * @param reportService the ReportService to use
 	 * @param emfFormsDatabinding the EMFFormsDatabinding to use
 	 * @param vtViewTemplateProvider the VTViewTemplateProvider to use
 	 * @since 1.6
 	 */
 	@Inject
 	public LabelSWTRenderer(final VLabel vElement, final ViewModelContext viewContext, ReportService reportService,
 		EMFFormsDatabinding emfFormsDatabinding, VTViewTemplateProvider vtViewTemplateProvider) {
 		super(vElement, viewContext, reportService);
 		this.emfFormsDatabinding = emfFormsDatabinding;
 		this.vtViewTemplateProvider = vtViewTemplateProvider;
 		dbc = new EMFDataBindingContext();
 	}

 	private SWTGridDescription rendererGridDescription;
 	private Font font;
 	private org.eclipse.swt.graphics.Color labelColor;

 	private Map<VLabelStyle, VTFontPropertiesStyleProperty> defaultStyles;
 	private Composite parent;
 	private EMFDataBindingContext dataBindingContext;

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#dispose()
 	 */
 	@Override
 	protected void dispose() {
 		rendererGridDescription = null;
 		if (font != null) {
 			font.dispose();
 		}
 		if (labelColor != null) {
 			labelColor.dispose();
 		}
 		if (dataBindingContext != null) {
 			dataBindingContext.dispose();
 			dataBindingContext = null;
 		}
 		dbc.dispose();
 		super.dispose();
 	}

 	/**
 	 * {@inheritDoc}
 	 *
 	 * @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#getGridDescription(SWTGridDescription)
 	 */
 	@Override
 	public SWTGridDescription getGridDescription(SWTGridDescription gridDescription) {
 		if (rendererGridDescription == null) {
 			rendererGridDescription = GridDescriptionFactory.INSTANCE.createSimpleGrid(1, 1, this);
 			final SWTGridCell gridCell = rendererGridDescription.getGrid().get(0);
 			gridCell.setVerticalGrab(false);
 			gridCell.setVerticalFill(false);
 			gridCell.setHorizontalFill(true);
 			gridCell.setHorizontalGrab(true);
 		}
 		return rendererGridDescription;
 	}

 	@Override
 	protected Control renderControl(SWTGridCell cell, Composite parent)
 		throws NoRendererFoundException, NoPropertyDescriptorFoundExeption {
 		this.parent = parent;
 		final Label label;
 		if (getVElement().getStyle() == VLabelStyle.SEPARATOR) {
 			label = new Label(parent, SWT.SEPARATOR | SWT.HORIZONTAL);
 		} else {
 			label = new Label(parent, SWT.NONE);
 			setText(label);
 			applyStyle(label);
 		}
 		return label;
 	}

 	private void setText(Label label) {
 		if (getVElement().getDomainModelReference() != null) {
 			try {
 				final IObservableValue observableValue = emfFormsDatabinding
 					.getObservableValue(getVElement().getDomainModelReference(),
 						getViewModelContext().getDomainModel());
 				final ISWTObservableValue observeText = WidgetProperties.text().observe(label);
 				final Binding binding = getDataBindingContext().bindValue(observeText, observableValue);

 				label.addDisposeListener(new DisposeListener() {
 					@Override
 					public void widgetDisposed(DisposeEvent e) {
 						binding.dispose();
 					}
 				});
 			} catch (final DatabindingFailedException ex) {
 				getReportService().report(new RenderingFailedReport(ex));
 				label.setText(ex.getMessage());
 			}
 		} else {
 			final IObservableValue modelValue = EMFEditObservables.observeValue(
 				AdapterFactoryEditingDomain.getEditingDomainFor(getVElement()), getVElement(),
 				VViewPackage.eINSTANCE.getElement_Label());
 			final IObservableValue targetValue = WidgetProperties.text().observe(label);

 			dbc.bindValue(targetValue, modelValue);
 		}
 	}

 	private DataBindingContext getDataBindingContext() {
 		if (dataBindingContext == null) {
 			dataBindingContext = new EMFDataBindingContext();
 		}
 		return dataBindingContext;
 	}

 	/**
 	 * Applies the style defined in the StyleProperty.
 	 *
 	 * @param label the {@link Label} to apply the styles onto
 	 */
 	protected void applyStyle(Label label) {
 		final VTFontPropertiesStyleProperty fontProperties = getFontProperty();
 		if (fontProperties == null) {
 			return;
 		}
 		final FontData[] fD = label.getFont().getFontData();

 		int style = SWT.NORMAL;
 		if (fontProperties.isBold()) {
 			style = style | SWT.BOLD;
 		}
 		if (fontProperties.isItalic()) {
 			style = style | SWT.ITALIC;
 		}

 		fD[0].setStyle(style);

 		fD[0].setHeight(fontProperties.getHeight());

 		if (font != null) {
 			font.dispose();
 		}
 		if (labelColor != null) {
 			labelColor.dispose();
 		}
 		String fontName = fontProperties.getFontName();
 		if (fontName == null) {
 			fontName = getDefaultFontName(label);
 		}
 		font = new Font(label.getDisplay(), fontName, fontProperties.getHeight(), style);
 		label.setFont(font);
 		labelColor = getColor(fontProperties.getColorHEX());
 		label.setForeground(labelColor);

 	}

 	private Color getColor(String colorHex) {
 		final String redString = colorHex.substring(0, 2);
 		final String greenString = colorHex.substring(2, 4);
 		final String blueString = colorHex.substring(4, 6);
 		final int red = Integer.parseInt(redString, 16);
 		final int green = Integer.parseInt(greenString, 16);
 		final int blue = Integer.parseInt(blueString, 16);
 		return new Color(Display.getDefault(), red, green, blue);
 	}

 	private VTFontPropertiesStyleProperty getFontProperty() {
 		VTFontPropertiesStyleProperty fontProperties;
 		final Set<VTStyleProperty> styleProperties = vtViewTemplateProvider
 			.getStyleProperties(getVElement(), getViewModelContext());
 		for (final VTStyleProperty styleProperty : styleProperties) {
 			if (VTFontPropertiesStyleProperty.class.isInstance(styleProperty)) {
 				fontProperties = VTFontPropertiesStyleProperty.class
 					.cast(styleProperty);
 				return fontProperties;
 			}
 		}

 		fontProperties = getDefaultFontProperties().get(getVElement().getStyle());
 		return fontProperties;
 	}

 	private Map<VLabelStyle, VTFontPropertiesStyleProperty> getDefaultFontProperties() {
 		if (defaultStyles == null) {
 			defaultStyles = new HashMap<VLabelStyle, VTFontPropertiesStyleProperty>();
 			final String defaultFontName = parent.getDisplay().getSystemFont().getFontData()[0].getName();
 			defaultStyles.put(VLabelStyle.H0, createStyle(false, false, "000000", defaultFontName, 10)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H1, createStyle(false, false, "000000", defaultFontName, 12)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H2, createStyle(false, false, "000000", defaultFontName, 14)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H3, createStyle(true, true, "000000", defaultFontName, 10)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H4, createStyle(true, false, "000000", defaultFontName, 10)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H5, createStyle(true, false, "000000", defaultFontName, 12)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H6, createStyle(true, false, "000000", defaultFontName, 14)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H7, createStyle(false, true, "000000", defaultFontName, 10)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H8, createStyle(false, true, "000000", defaultFontName, 12)); //$NON-NLS-1$
 			defaultStyles.put(VLabelStyle.H9, createStyle(false, true, "000000", defaultFontName, 14)); //$NON-NLS-1$
 		}
 		return defaultStyles;
 	}

 	private VTFontPropertiesStyleProperty createStyle(boolean bold, boolean italic, String colorHex, String fontName,
 		int fontHeight) {

 		final VTFontPropertiesStyleProperty fontProp = VTFontPropertiesFactory.eINSTANCE
 			.createFontPropertiesStyleProperty();

 		fontProp.setBold(bold);
 		fontProp.setColorHEX(colorHex); // "ff0000"
 		fontProp.setFontName(fontName);
 		fontProp.setHeight(fontHeight);
 		fontProp.setItalic(italic);

 		return fontProp;

 	}
 }
	/**
	* Copyright (c) 2011-2013 EclipseSource Muenchen GmbH and others.
	*
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License 2.0
	* which accompanies this distribution, and is available at
	* https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Eugen Neufeld - initial API and implementation
	*/
	package org.eclipse.emf.ecp.view.spi.label.swt;

	import java.util.HashMap;
	import java.util.Map;
	import java.util.Set;

	import javax.inject.Inject;

	import org.eclipse.core.databinding.Binding;
	import org.eclipse.core.databinding.DataBindingContext;
	import org.eclipse.core.databinding.observable.value.IObservableValue;
	import org.eclipse.emf.databinding.EMFDataBindingContext;
	import org.eclipse.emf.databinding.edit.EMFEditObservables;
	import org.eclipse.emf.ecp.view.spi.context.ViewModelContext;
	import org.eclipse.emf.ecp.view.spi.label.model.VLabel;
	import org.eclipse.emf.ecp.view.spi.label.model.VLabelStyle;
	import org.eclipse.emf.ecp.view.spi.model.VViewPackage;
	import org.eclipse.emf.ecp.view.spi.renderer.NoPropertyDescriptorFoundExeption;
	import org.eclipse.emf.ecp.view.spi.renderer.NoRendererFoundException;
	import org.eclipse.emf.ecp.view.spi.swt.reporting.RenderingFailedReport;
	import org.eclipse.emf.ecp.view.template.model.VTStyleProperty;
	import org.eclipse.emf.ecp.view.template.model.VTViewTemplateProvider;
	import org.eclipse.emf.ecp.view.template.style.fontProperties.model.VTFontPropertiesFactory;
	import org.eclipse.emf.ecp.view.template.style.fontProperties.model.VTFontPropertiesStyleProperty;
	import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain;
	import org.eclipse.emfforms.spi.common.report.ReportService;
	import org.eclipse.emfforms.spi.core.services.databinding.DatabindingFailedException;
	import org.eclipse.emfforms.spi.core.services.databinding.EMFFormsDatabinding;
	import org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer;
	import org.eclipse.emfforms.spi.swt.core.layout.GridDescriptionFactory;
	import org.eclipse.emfforms.spi.swt.core.layout.SWTGridCell;
	import org.eclipse.emfforms.spi.swt.core.layout.SWTGridDescription;
	import org.eclipse.jface.databinding.swt.ISWTObservableValue;
	import org.eclipse.jface.databinding.swt.WidgetProperties;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.DisposeEvent;
	import org.eclipse.swt.events.DisposeListener;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.graphics.FontData;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Label;

	/**
	* Renders an {@link VLabel} to a SWT {@link Label}.
	*
	* @since 1.5
	*
	*/
	public class LabelSWTRenderer extends AbstractSWTRenderer<VLabel> {
	private final EMFDataBindingContext dbc;
	private final EMFFormsDatabinding emfFormsDatabinding;
	private final VTViewTemplateProvider vtViewTemplateProvider;

	/**
	* Default Constructor.
	*
	* @param vElement the view element to be rendered
	* @param viewContext The view model context
	* @param reportService the ReportService to use
	* @param emfFormsDatabinding the EMFFormsDatabinding to use
	* @param vtViewTemplateProvider the VTViewTemplateProvider to use
	* @since 1.6
	*/
	@Inject
	public LabelSWTRenderer(final VLabel vElement, final ViewModelContext viewContext, ReportService reportService,
	EMFFormsDatabinding emfFormsDatabinding, VTViewTemplateProvider vtViewTemplateProvider) {
	super(vElement, viewContext, reportService);
	this.emfFormsDatabinding = emfFormsDatabinding;
	this.vtViewTemplateProvider = vtViewTemplateProvider;
	dbc = new EMFDataBindingContext();
	}

	private SWTGridDescription rendererGridDescription;
	private Font font;
	private org.eclipse.swt.graphics.Color labelColor;

	private Map<VLabelStyle, VTFontPropertiesStyleProperty> defaultStyles;
	private Composite parent;
	private EMFDataBindingContext dataBindingContext;

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#dispose()
	*/
	@Override
	protected void dispose() {
	rendererGridDescription = null;
	if (font != null) {
	font.dispose();
	}
	if (labelColor != null) {
	labelColor.dispose();
	}
	if (dataBindingContext != null) {
	dataBindingContext.dispose();
	dataBindingContext = null;
	}
	dbc.dispose();
	super.dispose();
	}

	/**
	* {@inheritDoc}
	*
	* @see org.eclipse.emfforms.spi.swt.core.AbstractSWTRenderer#getGridDescription(SWTGridDescription)
	*/
	@Override
	public SWTGridDescription getGridDescription(SWTGridDescription gridDescription) {
	if (rendererGridDescription == null) {
	rendererGridDescription = GridDescriptionFactory.INSTANCE.createSimpleGrid(1, 1, this);
	final SWTGridCell gridCell = rendererGridDescription.getGrid().get(0);
	gridCell.setVerticalGrab(false);
	gridCell.setVerticalFill(false);
	gridCell.setHorizontalFill(true);
	gridCell.setHorizontalGrab(true);
	}
	return rendererGridDescription;
	}

	@Override
	protected Control renderControl(SWTGridCell cell, Composite parent)
	throws NoRendererFoundException, NoPropertyDescriptorFoundExeption {
	this.parent = parent;
	final Label label;
	if (getVElement().getStyle() == VLabelStyle.SEPARATOR) {
	label = new Label(parent, SWT.SEPARATOR \| SWT.HORIZONTAL);
	} else {
	label = new Label(parent, SWT.NONE);
	setText(label);
	applyStyle(label);
	}
	return label;
	}

	private void setText(Label label) {
	if (getVElement().getDomainModelReference() != null) {
	try {
	final IObservableValue observableValue = emfFormsDatabinding
	.getObservableValue(getVElement().getDomainModelReference(),
	getViewModelContext().getDomainModel());
	final ISWTObservableValue observeText = WidgetProperties.text().observe(label);
	final Binding binding = getDataBindingContext().bindValue(observeText, observableValue);

	label.addDisposeListener(new DisposeListener() {
	@Override
	public void widgetDisposed(DisposeEvent e) {
	binding.dispose();
	}
	});
	} catch (final DatabindingFailedException ex) {
	getReportService().report(new RenderingFailedReport(ex));
	label.setText(ex.getMessage());
	}
	} else {
	final IObservableValue modelValue = EMFEditObservables.observeValue(
	AdapterFactoryEditingDomain.getEditingDomainFor(getVElement()), getVElement(),
	VViewPackage.eINSTANCE.getElement_Label());
	final IObservableValue targetValue = WidgetProperties.text().observe(label);

	dbc.bindValue(targetValue, modelValue);
	}
	}

	private DataBindingContext getDataBindingContext() {
	if (dataBindingContext == null) {
	dataBindingContext = new EMFDataBindingContext();
	}
	return dataBindingContext;
	}

	/**
	* Applies the style defined in the StyleProperty.
	*
	* @param label the {@link Label} to apply the styles onto
	*/
	protected void applyStyle(Label label) {
	final VTFontPropertiesStyleProperty fontProperties = getFontProperty();
	if (fontProperties == null) {
	return;
	}
	final FontData[] fD = label.getFont().getFontData();

	int style = SWT.NORMAL;
	if (fontProperties.isBold()) {
	style = style \| SWT.BOLD;
	}
	if (fontProperties.isItalic()) {
	style = style \| SWT.ITALIC;
	}

	fD[0].setStyle(style);

	fD[0].setHeight(fontProperties.getHeight());

	if (font != null) {
	font.dispose();
	}
	if (labelColor != null) {
	labelColor.dispose();
	}
	String fontName = fontProperties.getFontName();
	if (fontName == null) {
	fontName = getDefaultFontName(label);
	}
	font = new Font(label.getDisplay(), fontName, fontProperties.getHeight(), style);
	label.setFont(font);
	labelColor = getColor(fontProperties.getColorHEX());
	label.setForeground(labelColor);

	}

	private Color getColor(String colorHex) {
	final String redString = colorHex.substring(0, 2);
	final String greenString = colorHex.substring(2, 4);
	final String blueString = colorHex.substring(4, 6);
	final int red = Integer.parseInt(redString, 16);
	final int green = Integer.parseInt(greenString, 16);
	final int blue = Integer.parseInt(blueString, 16);
	return new Color(Display.getDefault(), red, green, blue);
	}

	private VTFontPropertiesStyleProperty getFontProperty() {
	VTFontPropertiesStyleProperty fontProperties;
	final Set<VTStyleProperty> styleProperties = vtViewTemplateProvider
	.getStyleProperties(getVElement(), getViewModelContext());
	for (final VTStyleProperty styleProperty : styleProperties) {
	if (VTFontPropertiesStyleProperty.class.isInstance(styleProperty)) {
	fontProperties = VTFontPropertiesStyleProperty.class
	.cast(styleProperty);
	return fontProperties;
	}
	}

	fontProperties = getDefaultFontProperties().get(getVElement().getStyle());
	return fontProperties;
	}

	private Map<VLabelStyle, VTFontPropertiesStyleProperty> getDefaultFontProperties() {
	if (defaultStyles == null) {
	defaultStyles = new HashMap<VLabelStyle, VTFontPropertiesStyleProperty>();
	final String defaultFontName = parent.getDisplay().getSystemFont().getFontData()[0].getName();
	defaultStyles.put(VLabelStyle.H0, createStyle(false, false, "000000", defaultFontName, 10)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H1, createStyle(false, false, "000000", defaultFontName, 12)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H2, createStyle(false, false, "000000", defaultFontName, 14)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H3, createStyle(true, true, "000000", defaultFontName, 10)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H4, createStyle(true, false, "000000", defaultFontName, 10)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H5, createStyle(true, false, "000000", defaultFontName, 12)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H6, createStyle(true, false, "000000", defaultFontName, 14)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H7, createStyle(false, true, "000000", defaultFontName, 10)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H8, createStyle(false, true, "000000", defaultFontName, 12)); //$NON-NLS-1$
	defaultStyles.put(VLabelStyle.H9, createStyle(false, true, "000000", defaultFontName, 14)); //$NON-NLS-1$
	}
	return defaultStyles;
	}

	private VTFontPropertiesStyleProperty createStyle(boolean bold, boolean italic, String colorHex, String fontName,
	int fontHeight) {

	final VTFontPropertiesStyleProperty fontProp = VTFontPropertiesFactory.eINSTANCE
	.createFontPropertiesStyleProperty();

	fontProp.setBold(bold);
	fontProp.setColorHEX(colorHex); // "ff0000"
	fontProp.setFontName(fontName);
	fontProp.setHeight(fontHeight);
	fontProp.setItalic(italic);

	return fontProp;

	}
	}