Java tutorial
/* * * JMoney - A Personal Finance Manager * Copyright (c) 2004 Nigel Westbury <westbury@users.sourceforge.net> * * * 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 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, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * */ package net.sf.jmoney.reconciliation.reconcilePage; import java.util.Calendar; import java.util.Date; import net.sf.jmoney.AlternativeContentLayout; import net.sf.jmoney.JMoneyPlugin; import net.sf.jmoney.fields.DateControl; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.dialogs.IDialogConstants; import org.eclipse.swt.SWT; import org.eclipse.swt.events.ModifyEvent; import org.eclipse.swt.events.ModifyListener; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Text; /** * Once an import file has been selected, this dialog box appears to get more * information from the user and to confirm the import. * * Specifically, this dialog box asks for a range of dates to import. Either the * start date, the end date or both may be blank to indicate there is no limit * to the entries to be imported. * * @author Nigel Westbury */ public class ImportStatementDialog extends Dialog { /** * The start date, or null if no start date */ private Date startDate = null; /** * The end date, or null if no start date */ private Date endDate = null; /** * Error message label widget. */ private Text errorMessageText; private AlternativeContentLayout alternativeContentLayout; DateControl startDateControl; DateControl endDateControl; /** * Creates an input dialog with OK and Cancel buttons. Note that the dialog * will have no visual representation (no widgets) until it is told to open. * <p> * Note that the <code>open</code> method blocks for input dialogs. * </p> * * @param parentShell * the parent shell * @param lastStatement */ public ImportStatementDialog(Shell parentShell, Date earliestDateInFile, Date latestDateInFile, Date statementDate) { super(parentShell); if (statementDate == null) { this.startDate = earliestDateInFile; this.endDate = latestDateInFile; } else { Calendar calendar = Calendar.getInstance(); calendar.setTime(statementDate); calendar.add(Calendar.MONTH, -1); calendar.add(Calendar.DAY_OF_MONTH, +1); startDateControl.setDate(calendar.getTime()); endDateControl.setDate(statementDate); } } @Override protected void buttonPressed(int buttonId) { if (buttonId == IDialogConstants.OK_ID) { startDate = startDateControl.getDate(); endDate = endDateControl.getDate(); } super.buttonPressed(buttonId); } @Override protected void configureShell(Shell shell) { super.configureShell(shell); shell.setText("New Statement"); } @Override protected void createButtonsForButtonBar(Composite parent) { // create OK and Cancel buttons by default createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true); createButton(parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false); } @Override protected Control createDialogArea(Composite parent) { Composite composite = (Composite) super.createDialogArea(parent); Label label = new Label(composite, SWT.WRAP); label.setText("You may restrict the import to a range of dates."); GridData messageData = new GridData(); Rectangle rect = getShell().getMonitor().getClientArea(); messageData.widthHint = rect.width / 2; label.setLayoutData(messageData); Composite alternativeContentContainer = new Composite(composite, 0); alternativeContentLayout = new AlternativeContentLayout(); alternativeContentContainer.setLayout(alternativeContentLayout); Label startDateLabel = new Label(composite, SWT.NONE); startDateLabel.setText("Start Date:"); GridData numberLabelData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_CENTER); numberLabelData.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH); startDateLabel.setLayoutData(numberLabelData); startDateLabel.setFont(parent.getFont()); startDateControl = new DateControl(composite); startDateControl.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL)); startDateControl.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { boolean isDateValid = (startDateControl.getDate() != null); setErrorMessage(isDateValid ? null : "Date must be in the format " + JMoneyPlugin.getDefault().getDateFormat()); } }); Label endDateLabel = new Label(composite, SWT.NONE); endDateLabel.setText("End Date:"); GridData dateLabelData = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_CENTER); dateLabelData.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH); endDateLabel.setLayoutData(dateLabelData); endDateLabel.setFont(parent.getFont()); endDateControl = new DateControl(composite); endDateControl.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL)); endDateControl.addModifyListener(new ModifyListener() { public void modifyText(ModifyEvent e) { boolean isDateValid = (endDateControl.getDate() != null); setErrorMessage(isDateValid ? null : "Date must be in the format " + JMoneyPlugin.getDefault().getDateFormat()); } }); errorMessageText = new Text(composite, SWT.READ_ONLY); errorMessageText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL)); errorMessageText.setBackground(errorMessageText.getDisplay().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND)); startDateControl.setDate(startDate); endDateControl.setDate(endDate); applyDialogFont(composite); return composite; } public Date getStartDate() { return startDate; } public Date getEndDate() { return endDate; } /** * Sets or clears the error message. * If not <code>null</code>, the OK button is disabled. * * @param errorMessage * the error message, or <code>null</code> to clear * @since 3.0 */ public void setErrorMessage(String errorMessage) { errorMessageText.setText(errorMessage == null ? "" : errorMessage); //$NON-NLS-1$ // If called during createDialogArea, the okButton // will not have been created yet. Button okButton = getButton(IDialogConstants.OK_ID); if (okButton != null) { okButton.setEnabled(errorMessage == null); } errorMessageText.getParent().update(); } }