Java tutorial
/** * Copyright (C) 2009-2012 BonitaSoft S.A. * BonitaSoft, 32 rue Gustave Eiffel - 38000 Grenoble * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2.0 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.bonitasoft.studio.properties.form.sections.general.contributions; import org.bonitasoft.studio.common.ExpressionConstants; import org.bonitasoft.studio.common.properties.ExtensibleGridPropertySection; import org.bonitasoft.studio.common.properties.IExtensibleGridPropertySectionContribution; import org.bonitasoft.studio.expression.editor.filter.AvailableExpressionTypeFilter; import org.bonitasoft.studio.expression.editor.viewer.ExpressionViewer; import org.bonitasoft.studio.form.properties.i18n.Messages; import org.bonitasoft.studio.model.expression.Expression; import org.bonitasoft.studio.model.expression.ExpressionFactory; import org.bonitasoft.studio.model.form.FormButton; import org.bonitasoft.studio.model.form.FormPackage; import org.bonitasoft.studio.model.form.HiddenWidget; import org.bonitasoft.studio.model.form.HtmlWidget; import org.bonitasoft.studio.model.form.IFrameWidget; import org.bonitasoft.studio.model.form.MessageInfo; import org.bonitasoft.studio.model.form.Widget; import org.bonitasoft.studio.properties.sections.general.ExpressionNotEmptyValidator; import org.eclipse.emf.databinding.EMFDataBindingContext; import org.eclipse.emf.databinding.edit.EMFEditObservables; import org.eclipse.emf.databinding.edit.EMFEditProperties; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.edit.command.SetCommand; import org.eclipse.emf.transaction.TransactionalEditingDomain; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.databinding.viewers.ViewerProperties; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.viewers.ISelection; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory; /** * @author Aurelien Pupier * @author Baptiste Mesta * */ public class ShowLabelGridPropertySectionContribution implements IExtensibleGridPropertySectionContribution { private Widget element; private TransactionalEditingDomain editingDomain; private EMFDataBindingContext dataBindingContext; /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution * #createControl(org.eclipse.swt.widgets.Composite, * org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory, * org.bonitasoft.studio.common.properties.ExtensibleGridPropertySection) */ public void createControl(Composite composite, TabbedPropertySheetWidgetFactory widgetFactory, ExtensibleGridPropertySection extensibleGridPropertySection) { composite.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, true, false)); composite.setLayout(new GridLayout(3, false)); if (dataBindingContext != null) { dataBindingContext.dispose(); } dataBindingContext = new EMFDataBindingContext(); Button enableLabel = null; if (!(element instanceof FormButton)) { /* Create the checkbox to hide/show the label */ enableLabel = widgetFactory.createButton(composite, "", SWT.CHECK); //$NON-NLS-1$ enableLabel.setLayoutData(new GridData(SWT.BEGINNING, SWT.CENTER, false, false)); enableLabel.setToolTipText(Messages.GeneralSection_EnableLabel_tooltip); dataBindingContext.bindValue(SWTObservables.observeSelection(enableLabel), EMFEditObservables .observeValue(editingDomain, element, FormPackage.Literals.WIDGET__SHOW_DISPLAY_LABEL)); } ExpressionViewer displayLabelViewer = new ExpressionViewer(composite, SWT.BORDER, widgetFactory, editingDomain, FormPackage.Literals.WIDGET__DISPLAY_LABEL); displayLabelViewer.addFilter(new AvailableExpressionTypeFilter(new String[] { ExpressionConstants.CONSTANT_TYPE, ExpressionConstants.I18N_TYPE, ExpressionConstants.SCRIPT_TYPE, ExpressionConstants.PARAMETER_TYPE, ExpressionConstants.VARIABLE_TYPE })); Expression displayLabelExpression = element.getDisplayLabel(); if (displayLabelExpression == null) { displayLabelExpression = ExpressionFactory.eINSTANCE.createExpression(); editingDomain.getCommandStack().execute(SetCommand.create(editingDomain, element, FormPackage.Literals.WIDGET__DISPLAY_LABEL, displayLabelExpression)); } // add validator on the show label field when it is a form button - expression can't be empty if (element instanceof FormButton) { displayLabelViewer.addExpressionValidator(ExpressionConstants.CONSTANT_TYPE, new ExpressionNotEmptyValidator()); } displayLabelViewer.getControl() .setLayoutData(GridDataFactory.fillDefaults().grab(true, false).hint(300, SWT.DEFAULT).create()); displayLabelViewer.setInput(element); dataBindingContext.bindValue(ViewerProperties.singleSelection().observe(displayLabelViewer), EMFEditProperties.value(editingDomain, FormPackage.Literals.WIDGET__DISPLAY_LABEL) .observe(element)); if (!(element instanceof FormButton)) { /* Create the chekbox to allow HTML for the label or not */ Button allowHtmlButton = widgetFactory.createButton(composite, Messages.GeneralSection_allowHTML, SWT.CHECK); dataBindingContext.bindValue(SWTObservables.observeSelection(allowHtmlButton), EMFEditObservables.observeValue(editingDomain, element, FormPackage.Literals.WIDGET__ALLOW_HTML_FOR_DISPLAY_LABEL)); dataBindingContext.bindValue(SWTObservables.observeEnabled(allowHtmlButton), SWTObservables.observeSelection(enableLabel)); /* Enable/disable the combo for the text and the allow html */ dataBindingContext.bindValue(SWTObservables.observeEnabled(displayLabelViewer.getControl()), SWTObservables.observeSelection(enableLabel)); dataBindingContext.bindValue(SWTObservables.observeEnabled(displayLabelViewer.getTextControl()), SWTObservables.observeSelection(enableLabel)); dataBindingContext.bindValue(SWTObservables.observeEnabled(displayLabelViewer.getButtonControl()), SWTObservables.observeSelection(enableLabel)); } } /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution#getLabel() */ public String getLabel() { return Messages.GeneralSection_EnableLabel; } /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution * #isRelevantFor(org.eclipse.emf.ecore.EObject) */ public boolean isRelevantFor(EObject eObject) { return eObject instanceof Widget && !(eObject instanceof IFrameWidget) && !(eObject instanceof HiddenWidget) && !(eObject instanceof MessageInfo) && !(eObject instanceof HtmlWidget); } /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution#refresh() */ public void refresh() { } /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution * #setEObject(org.eclipse.emf.ecore.EObject) */ public void setEObject(EObject object) { element = (Widget) object; } /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution * #setEditingDomain(org.eclipse.emf.transaction.TransactionalEditingDomain) */ public void setEditingDomain(TransactionalEditingDomain editingDomain) { this.editingDomain = editingDomain; } /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution * #setSelection(org.eclipse.jface.viewers.ISelection) */ public void setSelection(ISelection selection) { // NOTHING } /* * (non-Javadoc) * * @see org.bonitasoft.studio.common.properties. * IExtensibleGridPropertySectionContribution#dispose() */ public void dispose() { if (dataBindingContext != null) { dataBindingContext.dispose(); } } }