Java tutorial
/******************************************************************************* * Copyright (c) 2008, 2009 Internettechnik, FH JOANNEUM * http://www.fh-joanneum.at/itm * * Licenced under the GNU GENERAL PUBLIC LICENSE Version 2; * You may obtain a copy of the License at * http://www.gnu.org/licenses/gpl-2.0.txt * * 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. *******************************************************************************/ package at.rc.tacos.client.editors; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.jface.dialogs.IMessageProvider; import org.eclipse.jface.dialogs.MessageDialog; import org.eclipse.jface.text.Document; import org.eclipse.jface.text.ITextListener; import org.eclipse.jface.text.TextEvent; import org.eclipse.jface.text.TextViewer; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.CLabel; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Combo; 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.ui.IEditorInput; import org.eclipse.ui.IEditorSite; import org.eclipse.ui.IWorkbenchPartConstants; import org.eclipse.ui.PartInitException; import org.eclipse.ui.PlatformUI; import org.eclipse.ui.forms.events.HyperlinkAdapter; import org.eclipse.ui.forms.events.HyperlinkEvent; import org.eclipse.ui.forms.widgets.ExpandableComposite; import org.eclipse.ui.forms.widgets.FormToolkit; import org.eclipse.ui.forms.widgets.ImageHyperlink; import org.eclipse.ui.forms.widgets.ScrolledForm; import org.eclipse.ui.forms.widgets.Section; import org.eclipse.ui.part.EditorPart; import at.rc.tacos.client.controller.EditorCloseAction; import at.rc.tacos.client.controller.EditorSaveAction; import at.rc.tacos.client.modelManager.ModelFactory; import at.rc.tacos.client.providers.MobilePhoneContentProvider; import at.rc.tacos.client.providers.MobilePhoneLabelProvider; import at.rc.tacos.client.util.CustomColors; import at.rc.tacos.core.net.NetWrapper; import at.rc.tacos.factory.ImageFactory; import at.rc.tacos.model.Location; import at.rc.tacos.model.MobilePhoneDetail; public class LocationEditor extends EditorPart implements PropertyChangeListener { public static final String ID = "at.rc.tacos.client.editors.locationEditor"; // properties boolean isDirty; private FormToolkit toolkit; private ScrolledForm form; private CLabel infoLabel; private ImageHyperlink saveHyperlink; private Text locationName, street, streetNumber, zipCode, city; private TextViewer notesViewer; private ComboViewer phoneViewer; // managed data private Location location; private boolean isNew; /** * Default class constructor */ public LocationEditor() { ModelFactory.getInstance().getLocationManager().addPropertyChangeListener(this); ModelFactory.getInstance().getPhoneManager().addPropertyChangeListener(this); } /** * Cleanup */ @Override public void dispose() { ModelFactory.getInstance().getLocationManager().removePropertyChangeListener(this); ModelFactory.getInstance().getPhoneManager().removePropertyChangeListener(this); } /** * This is a callback that will allow us to create the viewer and initialize * it. */ @Override public void createPartControl(final Composite parent) { location = ((LocationEditorInput) getEditorInput()).getLocation(); isNew = ((LocationEditorInput) getEditorInput()).isNew(); isDirty = false; // Create the form toolkit = new FormToolkit(CustomColors.FORM_COLOR(parent.getDisplay())); form = toolkit.createScrolledForm(parent); toolkit.decorateFormHeading(form.getForm()); form.getBody().setLayout(new GridLayout()); form.getBody().setLayoutData(new GridData(GridData.FILL_BOTH)); // create the content createManageSection(form.getBody()); createDetailSection(form.getBody()); // load the data loadData(); // force redraw form.pack(true); } /** * Creates the section to manage the changes */ private void createManageSection(Composite parent) { Composite client = createSection(parent, "Ortsstelle verwalten"); // create info label and hyperlinks to save and revert the changes infoLabel = new CLabel(client, SWT.NONE); infoLabel.setText("Zum anlegen einer neuen Ortsstelle bitte die Systemadministratoren informieren"); infoLabel.setImage(ImageFactory.getInstance().getRegisteredImage("admin.info")); // Create the hyperlink to save the changes saveHyperlink = toolkit.createImageHyperlink(client, SWT.NONE); saveHyperlink.setText("nderungen speichern"); saveHyperlink.setEnabled(false); saveHyperlink.setForeground(CustomColors.GREY_COLOR); saveHyperlink.setImage(ImageFactory.getInstance().getRegisteredImage("admin.saveDisabled")); saveHyperlink.addHyperlinkListener(new HyperlinkAdapter() { @Override public void linkActivated(HyperlinkEvent e) { EditorSaveAction saveAction = new EditorSaveAction(); saveAction.run(); } }); // info label should span over two GridData data = new GridData(GridData.FILL_BOTH); data.horizontalSpan = 2; data.widthHint = 600; infoLabel.setLayoutData(data); } /** * Creates the section containing the job details * * @param parent * the parent composite */ private void createDetailSection(Composite parent) { Composite client = createSection(parent, "Dienststellen Details"); // label and the text field final Label labelLocationName = toolkit.createLabel(client, "Name der Ortsstelle"); locationName = toolkit.createText(client, ""); locationName.setEditable(false); locationName.setEnabled(false); locationName.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent me) { inputChanged(); } }); final Label labelStreet = toolkit.createLabel(client, "Addresse"); street = toolkit.createText(client, ""); street.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent me) { inputChanged(); } }); final Label labelStreetNumber = toolkit.createLabel(client, "Hausnummer"); streetNumber = toolkit.createText(client, ""); streetNumber.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent me) { inputChanged(); } }); final Label labelZip = toolkit.createLabel(client, "Postleitzahl"); zipCode = toolkit.createText(client, ""); zipCode.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent me) { inputChanged(); } }); final Label labelCity = toolkit.createLabel(client, "Stadt"); city = toolkit.createText(client, ""); city.addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent me) { inputChanged(); } }); // the phone viewer final Label labelPhone = toolkit.createLabel(client, "Telefon der Ortstelle"); Combo comboPhone = new Combo(client, SWT.READ_ONLY); phoneViewer = new ComboViewer(comboPhone); phoneViewer.setContentProvider(new MobilePhoneContentProvider()); phoneViewer.setLabelProvider(new MobilePhoneLabelProvider()); phoneViewer.setInput(ModelFactory.getInstance().getPhoneManager().getMobilePhoneList()); phoneViewer.getCombo().addModifyListener(new ModifyListener() { @Override public void modifyText(ModifyEvent me) { inputChanged(); } }); // the notes section final Label labelNotes = toolkit.createLabel(client, "Notizen zur Ortsstelle"); notesViewer = new TextViewer(client, SWT.BORDER | SWT.FLAT | SWT.MULTI | SWT.WRAP | SWT.V_SCROLL); notesViewer.setDocument(new Document()); notesViewer.getControl().setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER); notesViewer.setEditable(true); notesViewer.addTextListener(new ITextListener() { @Override public void textChanged(TextEvent te) { inputChanged(); } }); // set the layout for the composites GridData data = new GridData(); data.widthHint = 150; labelLocationName.setLayoutData(data); data = new GridData(); data.widthHint = 150; labelStreet.setLayoutData(data); data = new GridData(); data.widthHint = 150; labelStreetNumber.setLayoutData(data); data = new GridData(); data.widthHint = 150; labelZip.setLayoutData(data); data = new GridData(); data.widthHint = 150; labelCity.setLayoutData(data); data = new GridData(); data.widthHint = 150; labelPhone.setLayoutData(data); data = new GridData(); data.widthHint = 150; labelNotes.setLayoutData(data); // layout for the text fields GridData data2 = new GridData(GridData.FILL_HORIZONTAL); locationName.setLayoutData(data2); data2 = new GridData(GridData.FILL_HORIZONTAL); street.setLayoutData(data2); data2 = new GridData(GridData.FILL_HORIZONTAL); streetNumber.setLayoutData(data2); data2 = new GridData(GridData.FILL_HORIZONTAL); zipCode.setLayoutData(data2); data2 = new GridData(GridData.FILL_HORIZONTAL); city.setLayoutData(data2); data2 = new GridData(GridData.FILL_HORIZONTAL); phoneViewer.getCombo().setLayoutData(data2); data2 = new GridData(GridData.FILL_HORIZONTAL); data2.heightHint = 100; notesViewer.getTextWidget().setLayoutData(data2); } /** * Loads the data and shows them in the view */ private void loadData() { // init the editor if (isNew) { form.setText("Neue Dienststelle anlegen"); return; } // load the data form.setText("Details des Ortsstelle " + location.getLocationName()); locationName.setText(location.getLocationName()); street.setText(location.getStreet()); streetNumber.setText(location.getStreetNumber()); zipCode.setText(String.valueOf(location.getZipcode())); city.setText(location.getCity()); notesViewer.getTextWidget().setText(location.getNotes()); phoneViewer.setSelection(new StructuredSelection(location.getPhone())); } @Override public void doSave(IProgressMonitor monitor) { // reset error message form.setMessage(null, IMessageProvider.NONE); // save the name if (locationName.getText().length() > 30 || locationName.getText().trim().isEmpty()) { form.getDisplay().beep(); form.setMessage("Bitte geben Sie eine gltige Bezeichnung fr die Ortsstelle ein(max. 30 Zeichen)", IMessageProvider.ERROR); return; } location.setLocationName(locationName.getText()); // save the street if (street.getText().length() > 30 || street.getText().trim().isEmpty()) { form.getDisplay().beep(); form.setMessage("Bitte geben Sie eine Strae ein", IMessageProvider.ERROR); return; } location.setStreet(street.getText()); // save the street number if (streetNumber.getText().length() > 10 || streetNumber.getText().trim().isEmpty()) { form.getDisplay().beep(); form.setMessage("Bitte geben Sie eine gltige Hausnummer ein(max. 10 Zeichen)", IMessageProvider.ERROR); return; } location.setStreetNumber(streetNumber.getText()); // save the city if (city.getText().trim().isEmpty()) { form.getDisplay().beep(); form.setMessage("Bitte geben Sie eine gltige Stadt ein(max. 30 Zeichen)", IMessageProvider.ERROR); return; } location.setCity(city.getText()); // save the zip if (zipCode.getText().trim().isEmpty()) { form.getDisplay().beep(); form.setMessage("Bitte geben Sie eine Postleitzahl ein", IMessageProvider.ERROR); return; } // validate the number String pattern = "\\d{4}"; if (!zipCode.getText().matches(pattern)) { form.getDisplay().beep(); form.setMessage("Bitte geben Sie eine gltige Postleitzahl ein", IMessageProvider.ERROR); return; } location.setZipcode(Integer.valueOf(zipCode.getText())); // the notes can be empty location.setNotes(notesViewer.getTextWidget().getText()); int index = phoneViewer.getCombo().getSelectionIndex(); if (index == -1) { form.getDisplay().beep(); form.setMessage("Bitte whlen Sie ein Telefon fr die Ortsstelle aus.\n" + "Neue Telefone knnen Sie im Administrationsbereich unter \"Mobiltelefone\" anlegen und dann der Ortsstelle zuweisen", IMessageProvider.ERROR); return; } location.setPhone((MobilePhoneDetail) phoneViewer.getElementAt(index)); // add or update the location if (isNew) NetWrapper.getDefault().sendAddMessage(Location.ID, location); else NetWrapper.getDefault().sendUpdateMessage(Location.ID, location); } @Override public void doSaveAs() { // not supported } @Override public void init(IEditorSite site, IEditorInput input) throws PartInitException { setSite(site); setInput(input); setPartName(input.getName()); } @Override public void setFocus() { form.setFocus(); } @Override public boolean isDirty() { return isDirty; } @Override public boolean isSaveAsAllowed() { // not supported return false; } @Override public void propertyChange(PropertyChangeEvent evt) { if ("LOCATION_UPDATE".equals(evt.getPropertyName()) || "LOCATION_ADD".equalsIgnoreCase(evt.getPropertyName())) { Location updateLocation = null; // get the new value if (evt.getNewValue() instanceof Location) updateLocation = (Location) evt.getNewValue(); // assert we have a value if (updateLocation == null) return; // is this location is the current -> update it if (location.equals(updateLocation) || location.getLocationName().equals(updateLocation.getLocationName())) { // save the updated location setInput(new LocationEditorInput(updateLocation, false)); setPartName(location.getLocationName()); location = updateLocation; isNew = false; // update the editor loadData(); // show the result isDirty = false; infoLabel.setText("nderungen gespeichert"); infoLabel.setImage(ImageFactory.getInstance().getRegisteredImage("info.ok")); Display.getCurrent().beep(); } } if ("LOCATION_REMOVE".equalsIgnoreCase(evt.getPropertyName())) { // get the removed location Location removedLocation = (Location) evt.getOldValue(); // current open? if (location.equals(removedLocation)) { MessageDialog.openInformation(getSite().getShell(), "Ortsstelle wurde gelscht", "Die Ortsstelle, welches Sie gerade editieren, wurde gelscht"); EditorCloseAction closeAction = new EditorCloseAction( PlatformUI.getWorkbench().getActiveWorkbenchWindow()); closeAction.run(); } } if ("PHONE_ADD".equalsIgnoreCase(evt.getPropertyName()) || "PHONE_UPDATE".equalsIgnoreCase(evt.getPropertyName()) || "PHONE_REMOVE".equalsIgnoreCase(evt.getPropertyName())) { // just refresh the viewer to update the combo phoneViewer.refresh(true); } } // Helper methods /** * Creates and returns a section and a composite with two colums * * @param parent * the parent composite * @param sectionName * the title of the section * @return the created composite to hold the other widgets */ private Composite createSection(Composite parent, String sectionName) { // create the section Section section = toolkit.createSection(parent, ExpandableComposite.TITLE_BAR | ExpandableComposite.TWISTIE); toolkit.createCompositeSeparator(section); section.setText(sectionName); section.setLayout(new GridLayout()); section.setLayoutData(new GridData( GridData.BEGINNING | GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.VERTICAL_ALIGN_BEGINNING)); section.setExpanded(true); // composite to add the client area Composite client = new Composite(section, SWT.NONE); section.setClient(client); // layout GridLayout layout = new GridLayout(); layout.numColumns = 2; layout.makeColumnsEqualWidth = false; client.setLayout(layout); GridData clientDataLayout = new GridData(GridData.BEGINNING | GridData.HORIZONTAL_ALIGN_BEGINNING | GridData.VERTICAL_ALIGN_BEGINNING | GridData.FILL_BOTH); client.setLayoutData(clientDataLayout); return client; } /** * This is called when the input of a text box or a combo box was changes */ private void inputChanged() { // reset the flag isDirty = false; // get the current input LocationEditorInput locationInput = (LocationEditorInput) getEditorInput(); Location persistantLocation = locationInput.getLocation(); // check the location name if (!locationName.getText().equalsIgnoreCase(persistantLocation.getLocationName())) { isDirty = true; } // street if (!street.getText().equalsIgnoreCase(persistantLocation.getStreet())) { isDirty = true; } // streetnumber if (!streetNumber.getText().equalsIgnoreCase(persistantLocation.getStreetNumber())) { isDirty = true; } // city if (!city.getText().equalsIgnoreCase(persistantLocation.getCity())) { isDirty = true; } // zip if (!zipCode.getText().equalsIgnoreCase(String.valueOf(persistantLocation.getZipcode()))) { isDirty = true; } // notes if (!notesViewer.getTextWidget().getText().equalsIgnoreCase(persistantLocation.getNotes())) { isDirty = true; } // phone int index = phoneViewer.getCombo().getSelectionIndex(); if (index != -1) { MobilePhoneDetail phone = (MobilePhoneDetail) phoneViewer.getElementAt(index); if (!phone.equals(persistantLocation.getPhone())) { isDirty = true; } } if (isDirty) { infoLabel.setText("Bitte speichern Sie ihre lokalen nderungen."); infoLabel.setImage(ImageFactory.getInstance().getRegisteredImage("info.warning")); saveHyperlink.setEnabled(true); saveHyperlink.setForeground(CustomColors.COLOR_LINK); saveHyperlink.setImage(ImageFactory.getInstance().getRegisteredImage("admin.save")); } else { infoLabel.setText("Zum anlegen einer neuen Ortsstelle bitte die Systemadministratoren informieren"); infoLabel.setImage(ImageFactory.getInstance().getRegisteredImage("admin.info")); saveHyperlink.setEnabled(false); saveHyperlink.setForeground(CustomColors.GREY_COLOR); saveHyperlink.setImage(ImageFactory.getInstance().getRegisteredImage("admin.saveDisabled")); } // set the dirty flag firePropertyChange(IWorkbenchPartConstants.PROP_DIRTY); } }