Java tutorial
/******************************************************************************* * Copyright (c) Jun 25, 2011 NetXForge. * * 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 3 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/> * * Contributors: Christophe Bouhier - initial API and implementation and/or * initial documentation *******************************************************************************/ package com.netxforge.netxstudio.screens.f3; import java.util.List; import org.eclipse.core.databinding.observable.list.IObservableList; import org.eclipse.core.databinding.observable.map.IObservableMap; import org.eclipse.core.databinding.observable.set.IObservableSet; import org.eclipse.emf.databinding.EMFDataBindingContext; import org.eclipse.emf.databinding.EMFProperties; import org.eclipse.emf.databinding.IEMFListProperty; import org.eclipse.emf.databinding.edit.EMFEditProperties; import org.eclipse.emf.ecore.resource.Resource; import org.eclipse.jface.action.Action; import org.eclipse.jface.action.IAction; import org.eclipse.jface.databinding.viewers.ObservableListTreeContentProvider; import org.eclipse.jface.databinding.viewers.ObservableMapLabelProvider; import org.eclipse.jface.resource.ImageDescriptor; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.TreeViewer; import org.eclipse.jface.viewers.TreeViewerColumn; import org.eclipse.jface.viewers.Viewer; import org.eclipse.jface.viewers.ViewerFilter; import org.eclipse.swt.SWT; import org.eclipse.swt.events.DisposeEvent; import org.eclipse.swt.events.DisposeListener; import org.eclipse.swt.events.KeyAdapter; import org.eclipse.swt.events.KeyEvent; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Text; import org.eclipse.swt.widgets.Tree; import org.eclipse.swt.widgets.TreeColumn; import org.eclipse.ui.forms.events.HyperlinkEvent; import org.eclipse.ui.forms.events.IHyperlinkListener; import org.eclipse.ui.forms.widgets.Form; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.ImageHyperlink; import org.eclipse.wb.swt.ResourceManager; import com.google.common.collect.Lists; import com.netxforge.netxstudio.geo.Country; import com.netxforge.netxstudio.geo.GeoFactory; import com.netxforge.netxstudio.geo.GeoPackage; import com.netxforge.netxstudio.geo.Site; import com.netxforge.netxstudio.screens.AbstractScreen; import com.netxforge.netxstudio.screens.editing.filter.CDOSearchFilter; import com.netxforge.netxstudio.screens.editing.tables.CDOElementComparer; import com.netxforge.netxstudio.screens.f3.support.SiteTreeFactory; import com.netxforge.netxstudio.screens.f3.support.SiteTreeStructureAdvisor; import com.netxforge.screens.editing.base.IDataServiceInjection; import com.netxforge.screens.editing.base.ScreenUtil; import com.netxforge.screens.editing.base.actions.BaseSelectionListenerAction; import com.netxforge.screens.editing.base.filter.ISearchFilter; public class SitesTree extends AbstractScreen implements IDataServiceInjection { private final FormToolkit toolkit = new FormToolkit(Display.getCurrent()); private Text txtFilterText; private Resource countryResource; @SuppressWarnings("unused") private EMFDataBindingContext bindingContext; private Form frmSites; private TreeViewer sitesTreeViewer; private ObservableListTreeContentProvider listTreeContentProvider; /** * Create the composite. * * @param parent * @param style */ public SitesTree(Composite parent, int style) { super(parent, style); addDisposeListener(new DisposeListener() { public void widgetDisposed(DisposeEvent e) { toolkit.dispose(); } }); toolkit.adapt(this); toolkit.paintBordersFor(this); } public EMFDataBindingContext initDataBindings_() { listTreeContentProvider = new ObservableListTreeContentProvider( new SiteTreeFactory(editingService.getEditingDomain()), new SiteTreeStructureAdvisor()); sitesTreeViewer.setContentProvider(listTreeContentProvider); IObservableSet set = listTreeContentProvider.getKnownElements(); List<IObservableMap> mapList = Lists.newArrayList(); mapList.add(EMFProperties.value(GeoPackage.Literals.LOCATION__NAME).observeDetail(set)); mapList.add(EMFProperties.value(GeoPackage.Literals.LOCATION__NAME).observeDetail(set)); mapList.add(EMFProperties.value(GeoPackage.Literals.SITE__CITY).observeDetail(set)); mapList.add(EMFProperties.value(GeoPackage.Literals.SITE__SREET).observeDetail(set)); mapList.add(EMFProperties.value(GeoPackage.Literals.SITE__HOUSENUMBER).observeDetail(set)); IObservableMap[] observeMaps = new IObservableMap[mapList.size()]; mapList.toArray(observeMaps); sitesTreeViewer.setLabelProvider(new ObservableMapLabelProvider(observeMaps)); IEMFListProperty countryResourceProperty = EMFEditProperties.resource(editingService.getEditingDomain()); IObservableList countryObservableList = countryResourceProperty.observe(countryResource); sitesTreeViewer.setInput(countryObservableList); EMFDataBindingContext context = new EMFDataBindingContext(); return context; } public void injectData() { countryResource = editingService.getData(GeoPackage.Literals.COUNTRY); buildUI(); bindingContext = initDataBindings_(); } private void buildUI() { // Readonlyness. boolean readonly = ScreenUtil.isReadOnlyOperation(this.getOperation()); setLayout(new FillLayout(SWT.HORIZONTAL)); frmSites = toolkit.createForm(this); frmSites.setSeparatorVisible(true); toolkit.paintBordersFor(frmSites); frmSites.setText(this.getOperationText() + "Sites"); frmSites.getBody().setLayout(new GridLayout(3, false)); Label lblFilterLabel = toolkit.createLabel(frmSites.getBody(), "Filter:", SWT.NONE); lblFilterLabel.setAlignment(SWT.RIGHT); GridData gd_lblFilterLabel = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1); gd_lblFilterLabel.widthHint = 36; lblFilterLabel.setLayoutData(gd_lblFilterLabel); txtFilterText = toolkit.createText(frmSites.getBody(), "New Text", SWT.H_SCROLL | SWT.SEARCH | SWT.CANCEL); txtFilterText.addKeyListener(new KeyAdapter() { public void keyReleased(KeyEvent ke) { sitesTreeViewer.refresh(); ViewerFilter[] filters = sitesTreeViewer.getFilters(); for (ViewerFilter viewerFilter : filters) { if (viewerFilter instanceof ISearchFilter) { ((ISearchFilter) viewerFilter).setSearchText(txtFilterText.getText()); } } } }); txtFilterText.setText(""); GridData gd_txtFilterText = new GridData(SWT.LEFT, SWT.CENTER, true, false, 1, 1); gd_txtFilterText.widthHint = 200; txtFilterText.setLayoutData(gd_txtFilterText); if (!readonly) { ImageHyperlink mghprlnkNewMetric = toolkit.createImageHyperlink(frmSites.getBody(), SWT.NONE); mghprlnkNewMetric.addHyperlinkListener(new IHyperlinkListener() { public void linkActivated(HyperlinkEvent e) { if (screenService != null) { ISelection selection = getViewer().getSelection(); if (selection instanceof IStructuredSelection) { Object o = ((IStructuredSelection) selection).getFirstElement(); if (o instanceof Country) { NewEditSite siteScreen = new NewEditSite(screenService.getScreenContainer(), SWT.NONE); siteScreen.setScreenService(screenService); siteScreen.setOperation(ScreenUtil.OPERATION_NEW); siteScreen.injectData(o, GeoFactory.eINSTANCE.createSite()); screenService.setActiveScreen(siteScreen); } } } } public void linkEntered(HyperlinkEvent e) { } public void linkExited(HyperlinkEvent e) { } }); mghprlnkNewMetric.setImage(ResourceManager.getPluginImage("com.netxforge.netxstudio.models.edit", "icons/full/ctool16/Site_E.png")); toolkit.paintBordersFor(mghprlnkNewMetric); mghprlnkNewMetric.setText("New"); } sitesTreeViewer = new TreeViewer(frmSites.getBody(), SWT.BORDER | SWT.VIRTUAL | SWT.MULTI); sitesTreeViewer.setUseHashlookup(true); sitesTreeViewer.setComparer(new CDOElementComparer()); Tree tree = sitesTreeViewer.getTree(); tree.setLinesVisible(true); tree.setHeaderVisible(true); tree.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 3, 1)); toolkit.paintBordersFor(tree); TreeViewerColumn treeViewerColumn = new TreeViewerColumn(sitesTreeViewer, SWT.NONE); TreeColumn trclmnCountry = treeViewerColumn.getColumn(); trclmnCountry.setWidth(100); trclmnCountry.setText("Country"); TreeViewerColumn treeViewerColumn_1 = new TreeViewerColumn(sitesTreeViewer, SWT.NONE); TreeColumn trclmnName = treeViewerColumn_1.getColumn(); trclmnName.setWidth(129); trclmnName.setText("Name"); TreeViewerColumn treeViewerColumn_2 = new TreeViewerColumn(sitesTreeViewer, SWT.NONE); TreeColumn trclmnCity = treeViewerColumn_2.getColumn(); trclmnCity.setWidth(105); trclmnCity.setText("City"); TreeViewerColumn treeViewerColumn_3 = new TreeViewerColumn(sitesTreeViewer, SWT.NONE); TreeColumn trclmnStreet = treeViewerColumn_3.getColumn(); trclmnStreet.setWidth(100); trclmnStreet.setText("Street"); TreeViewerColumn treeViewerColumn_4 = new TreeViewerColumn(sitesTreeViewer, SWT.NONE); TreeColumn trclmnNr = treeViewerColumn_4.getColumn(); trclmnNr.setWidth(100); trclmnNr.setText("Nr"); sitesTreeViewer.addFilter(new CDOSearchFilter()); } /** * Wrap in an action, to contribute to a menu manager. * * @author Christophe Bouhier * */ class EditSiteAction extends BaseSelectionListenerAction { public EditSiteAction(String text) { super(text); } /* * (non-Javadoc) * * @see com.netxforge.netxstudio.screens.editing.actions. * BaseSelectionListenerAction * #updateSelection(org.eclipse.jface.viewers.IStructuredSelection) */ @Override protected boolean updateSelection(IStructuredSelection selection) { return selection.getFirstElement() instanceof Site; } @Override public void run() { Object o = this.getStructuredSelection().getFirstElement(); if (o instanceof Site) { NewEditSite siteScreen = new NewEditSite(screenService.getScreenContainer(), SWT.NONE); siteScreen.setScreenService(screenService); siteScreen.setOperation(getOperation()); siteScreen.injectData(((Site) o).eContainer(), o); screenService.setActiveScreen(siteScreen); } } } /** * Wrap in an action, to contribute to a menu manager. * * @author Christophe Bouhier * */ class NewSiteAction extends Action { public NewSiteAction(String text) { super(text); ImageDescriptor descriptor = ResourceManager.getPluginImageDescriptor( "com.netxforge.netxstudio.models.edit", "icons/full/ctool16/Site_E.png"); setImageDescriptor(descriptor); } @Override public void run() { super.run(); if (screenService != null) { ISelection selection = getViewer().getSelection(); if (selection instanceof IStructuredSelection) { Object o = ((IStructuredSelection) selection).getFirstElement(); if (o instanceof Country) { NewEditSite siteScreen = new NewEditSite(screenService.getScreenContainer(), SWT.NONE); siteScreen.setScreenService(screenService); siteScreen.setOperation(ScreenUtil.OPERATION_NEW); siteScreen.injectData(o, GeoFactory.eINSTANCE.createSite()); screenService.setActiveScreen(siteScreen); } } } } } public Viewer getViewer() { return sitesTreeViewer; } @Override public boolean isValid() { return false; } public Form getScreenForm() { return this.frmSites; } @Override public IAction[] getActions() { List<IAction> actions = Lists.newArrayList(); boolean readonly = ScreenUtil.isReadOnlyOperation(getOperation()); String actionText = readonly ? "View" : "Edit"; actions.add(new EditSiteAction(actionText + "...")); // if(!readonly){ // actions.add(new NewSiteAction("New...", SWT.PUSH)); // } IAction[] actionArray = new IAction[actions.size()]; return actions.toArray(actionArray); } @Override public String getScreenName() { return "Sites"; } }