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.useraids.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.Group; 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.eclipse.core.runtime.IStatus; import org.eclipse.emf.databinding.EMFDataBindingContext; 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.viewers.ViewerProperties; import org.eclipse.jface.layout.GridDataFactory; import org.eclipse.jface.layout.GridLayoutFactory; import org.eclipse.jface.viewers.ISelection; import org.eclipse.swt.SWT; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory; /** * @author Aurelien Pupier * @author Baptiste Mesta * */ public class HintGridPropertySectionContribution 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.FILL, SWT.CENTER, true, false)); composite.setLayout(GridLayoutFactory.fillDefaults().numColumns(1).margins(20, 0).create()); if (dataBindingContext != null) { dataBindingContext.dispose(); } dataBindingContext = new EMFDataBindingContext(); ExpressionViewer hintViewer = new ExpressionViewer(composite, SWT.BORDER, widgetFactory, editingDomain, FormPackage.Literals.WIDGET__HELP_MESSAGE); hintViewer.getControl().setLayoutData(GridDataFactory.fillDefaults().grab(true, false).create()); Expression hintExpression = element.getHelpMessage(); if (hintExpression == null) { hintExpression = ExpressionFactory.eINSTANCE.createExpression(); editingDomain.getCommandStack().execute(SetCommand.create(editingDomain, element, FormPackage.Literals.WIDGET__HELP_MESSAGE, hintExpression)); } dataBindingContext.bindValue(ViewerProperties.singleSelection().observe(hintViewer), EMFEditProperties.value(editingDomain, FormPackage.Literals.WIDGET__HELP_MESSAGE).observe(element)); hintViewer.addFilter(new AvailableExpressionTypeFilter( new String[] { ExpressionConstants.CONSTANT_TYPE, ExpressionConstants.VARIABLE_TYPE, ExpressionConstants.PARAMETER_TYPE, ExpressionConstants.SCRIPT_TYPE })); hintViewer.setInput(element); hintViewer.setMessage(Messages.UserAidsSection_Hint_tooltip, IStatus.INFO); } /* (non-Javadoc) * @see org.bonitasoft.studio.common.properties.IExtensibleGridPropertySectionContribution#getLabel() */ public String getLabel() { return Messages.UserAidsSection_Hint; } /* (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 HiddenWidget) && !(eObject instanceof Group) && !(eObject instanceof IFrameWidget) && !(eObject instanceof MessageInfo) && !(eObject instanceof FormButton) && !(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(); } } }