| /******************************************************************************* |
| * Copyright (c) 2011-2013 EclipseSource Muenchen GmbH and others. |
| * |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Eugen Neufeld - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.emf.ecp.edit.internal.swt.table; |
| |
| import java.text.DecimalFormat; |
| import java.text.ParseException; |
| import java.text.ParsePosition; |
| import java.util.Locale; |
| |
| import org.eclipse.core.databinding.DataBindingContext; |
| import org.eclipse.core.databinding.UpdateValueStrategy; |
| import org.eclipse.core.databinding.property.value.IValueProperty; |
| import org.eclipse.emf.databinding.EMFUpdateValueStrategy; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.emf.ecp.edit.internal.swt.Activator; |
| import org.eclipse.emf.ecp.edit.internal.swt.controls.NumericalHelper; |
| import org.eclipse.emf.ecp.edit.spi.ViewLocaleService; |
| import org.eclipse.emf.ecp.edit.spi.swt.table.StringBasedCellEditor; |
| import org.eclipse.emf.ecp.edit.spi.swt.util.ECPDialogExecutor; |
| import org.eclipse.emf.ecp.view.spi.context.ViewModelContext; |
| import org.eclipse.emf.edit.command.SetCommand; |
| import org.eclipse.emfforms.spi.common.locale.EMFFormsLocaleProvider; |
| import org.eclipse.emfforms.spi.localization.LocalizationServiceHelper; |
| import org.eclipse.jface.databinding.swt.typed.WidgetProperties; |
| import org.eclipse.jface.databinding.viewers.CellEditorProperties; |
| import org.eclipse.jface.dialogs.IDialogLabelKeys; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.viewers.CellEditor; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Text; |
| |
| /** |
| * A number cell Editor which displays numbers. |
| * |
| * @author Eugen Neufeld |
| * |
| */ |
| public class NumberCellEditor extends StringBasedCellEditor { |
| |
| /** |
| * @author Jonas |
| * |
| */ |
| private final class TargetToModelStrategy extends EMFUpdateValueStrategy { |
| private final DataBindingContext databindingContext; |
| |
| /** |
| * @param databindingContext |
| */ |
| private TargetToModelStrategy(DataBindingContext databindingContext) { |
| this.databindingContext = databindingContext; |
| } |
| |
| @Override |
| public Object convert(final Object value) { |
| final DecimalFormat format = NumericalHelper.setupFormat(getLocale(), |
| getInstanceClass()); |
| try { |
| Number number = null; |
| if (value == null) { |
| number = NumericalHelper.getDefaultValue(getInstanceClass()); |
| } else { |
| final ParsePosition pp = new ParsePosition(0); |
| number = format.parse((String) value, pp); |
| if (pp.getErrorIndex() != -1 || pp.getIndex() != ((String) value).length()) { |
| return revertToOldValue(value); |
| } |
| if (NumericalHelper.isInteger(getInstanceClass())) { |
| boolean maxValue = false; |
| final Class<?> instanceClass = getInstanceClass(); |
| String formatedValue = ""; //$NON-NLS-1$ |
| try { |
| if (Integer.class.isAssignableFrom(instanceClass) |
| || Integer.class.getField("TYPE").get(null).equals(instanceClass)) { //$NON-NLS-1$ |
| if (Integer.MAX_VALUE == number.intValue()) { |
| maxValue = true; |
| formatedValue = format.format(Integer.MAX_VALUE); |
| } |
| } else if (Long.class.isAssignableFrom(instanceClass) |
| || Long.class.getField("TYPE").get(null).equals(instanceClass)) { //$NON-NLS-1$ |
| if (Long.MAX_VALUE == number.longValue()) { |
| maxValue = true; |
| formatedValue = format.format(Long.MAX_VALUE); |
| } |
| } |
| } catch (final IllegalArgumentException ex) { |
| Activator.logException(ex); |
| } catch (final SecurityException ex) { |
| Activator.logException(ex); |
| } catch (final IllegalAccessException ex) { |
| Activator.logException(ex); |
| } catch (final NoSuchFieldException ex) { |
| Activator.logException(ex); |
| } |
| |
| if (maxValue) { |
| getText().setText(formatedValue); |
| return NumericalHelper.numberToInstanceClass(number, getInstanceClass()); |
| } |
| } |
| } |
| String formatedNumber = ""; //$NON-NLS-1$ |
| if (number != null) { |
| formatedNumber = format.format(number); |
| } |
| // if (number.toString().contains("E") |
| // || ((String) value).matches("0*" + formatedNumber + "\\" |
| // + format.getDecimalFormatSymbols().getDecimalSeparator() + "?0*")) { |
| // |
| // } |
| // return revertToOldValue(value); |
| getText().setText(formatedNumber); |
| if (formatedNumber.length() == 0) { |
| return null; |
| } |
| return NumericalHelper.numberToInstanceClass(format.parse(formatedNumber), getInstanceClass()); |
| } catch (final ParseException ex) { |
| return revertToOldValue(value); |
| } |
| } |
| |
| private Object revertToOldValue(final Object value) { |
| |
| if (eStructuralFeature.getDefaultValue() == null && (value == null || value.equals(""))) { //$NON-NLS-1$ |
| return null; |
| } |
| |
| final Object result = null; |
| |
| final MessageDialog messageDialog = new MessageDialog(text.getShell(), |
| LocalizationServiceHelper.getString(getClass(), TableMessageKeys.NumberCellEditor_InvalidNumber), |
| null, LocalizationServiceHelper.getString(getClass(), |
| TableMessageKeys.NumberCellEditor_NumberYouEnteredIsInvalid), |
| MessageDialog.ERROR, |
| new String[] { JFaceResources.getString(IDialogLabelKeys.OK_LABEL_KEY) }, 0); |
| |
| new ECPDialogExecutor(messageDialog) { |
| @Override |
| public void handleResult(int codeResult) { |
| |
| } |
| }.execute(); |
| |
| databindingContext.updateTargets(); |
| |
| if (eStructuralFeature.isUnsettable()) { |
| return SetCommand.UNSET_VALUE; |
| } |
| return result; |
| } |
| } |
| |
| private EStructuralFeature eStructuralFeature; |
| @Deprecated |
| private ViewLocaleService localeService; |
| private EMFFormsLocaleProvider localeProvider; |
| |
| /** |
| * The constructor which only takes a parent composite. |
| * |
| * @param parent the {@link Composite} to use as a parent. |
| */ |
| public NumberCellEditor(Composite parent) { |
| super(parent, SWT.RIGHT); |
| } |
| |
| /** |
| * A constructor which takes a parent and the style to use, the style is ignored by this cell editor. |
| * |
| * @param parent the {@link Composite} to use as a parent |
| * @param style the SWT style to set |
| */ |
| public NumberCellEditor(Composite parent, int style) { |
| super(parent, style | SWT.RIGHT); |
| } |
| |
| @Override |
| public IValueProperty<CellEditor, String> getValueProperty() { |
| return CellEditorProperties.control().value(WidgetProperties.text(SWT.FocusOut)); |
| } |
| |
| @Override |
| public void instantiate(EStructuralFeature eStructuralFeature, ViewModelContext viewModelContext) { |
| this.eStructuralFeature = eStructuralFeature; |
| getControl().setData(CUSTOM_VARIANT, "org_eclipse_emf_ecp_edit_cellEditor_numberical"); //$NON-NLS-1$ |
| localeService = viewModelContext.getService(ViewLocaleService.class); |
| localeProvider = viewModelContext.getService(EMFFormsLocaleProvider.class); |
| } |
| |
| @Override |
| public String getFormatedString(Object value) { |
| if (value == null) { |
| setErrorMessage(LocalizationServiceHelper.getString(NumberCellEditor.class, |
| TableMessageKeys.NumberCellEditor_ValueIsNull)); |
| return ""; //$NON-NLS-1$ |
| } |
| |
| final DecimalFormat format = NumericalHelper.setupFormat(getLocale(), getInstanceClass()); |
| return format.format(value); |
| |
| // if (BigDecimal.class.isInstance(value)) { |
| // BigDecimal bigDecimal = (BigDecimal) value; |
| // bigDecimal.toPlainString(); |
| // } |
| // return ((Number) value).toString(); |
| } |
| |
| private Locale getLocale() { |
| if (localeService != null) { |
| return localeService.getLocale(); |
| } |
| if (localeProvider != null) { |
| return localeProvider.getLocale(); |
| } |
| return Locale.getDefault(); |
| } |
| |
| @Override |
| public int getColumnWidthWeight() { |
| return 50; |
| } |
| |
| @Override |
| public UpdateValueStrategy getTargetToModelStrategy(final DataBindingContext databindingContext) { |
| return withPreSetValidation(eStructuralFeature, new TargetToModelStrategy(databindingContext)); |
| } |
| |
| @Override |
| public UpdateValueStrategy getModelToTargetStrategy(DataBindingContext databindingContext) { |
| return new EMFUpdateValueStrategy() { |
| @Override |
| public Object convert(Object value) { |
| if (value == null) { |
| return ""; //$NON-NLS-1$ |
| } |
| final DecimalFormat format = NumericalHelper.setupFormat(getLocale(), |
| getInstanceClass()); |
| return format.format(value); |
| } |
| }; |
| } |
| |
| private Class<?> getInstanceClass() { |
| return eStructuralFeature.getEType().getInstanceClass(); |
| } |
| |
| private Text getText() { |
| return text; |
| } |
| |
| @Override |
| public void setEditable(boolean editable) { |
| if (getText() != null) { |
| getText().setEditable(editable); |
| } |
| } |
| |
| @Override |
| public Image getImage(Object value) { |
| return null; |
| } |
| |
| @Override |
| public int getMinWidth() { |
| return 0; |
| } |
| } |