| /******************************************************************************* |
| * Copyright (c) 2011, 2012 Red Hat, Inc. |
| * All rights reserved. |
| * This program is made available under the terms of the |
| * Eclipse Public License v1.0 which accompanies this distribution, |
| * and is available at http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Red Hat, Inc. - initial API and implementation |
| * |
| * @author Bob Brodt |
| ******************************************************************************/ |
| |
| package org.eclipse.bpmn2.modeler.core.merrimac.dialogs; |
| |
| import java.math.BigInteger; |
| |
| import org.eclipse.bpmn2.modeler.core.merrimac.clad.AbstractDetailComposite; |
| import org.eclipse.core.databinding.observable.value.IObservableValue; |
| import org.eclipse.core.databinding.observable.value.IValueChangeListener; |
| import org.eclipse.core.databinding.observable.value.ValueChangeEvent; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EStructuralFeature; |
| import org.eclipse.jface.databinding.swt.typed.WidgetProperties; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.VerifyEvent; |
| import org.eclipse.swt.events.VerifyListener; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| |
| /** |
| * @author Bob Brodt |
| * |
| */ |
| public class FloatObjectEditor extends TextObjectEditor { |
| |
| /** |
| * @param parent |
| * @param object |
| * @param feature |
| */ |
| public FloatObjectEditor(AbstractDetailComposite parent, EObject object, EStructuralFeature feature) { |
| super(parent, object, feature); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.bpmn2.modeler.ui.property.editors.ObjectEditor#createControl(org.eclipse.swt.widgets.Composite, java.lang.String) |
| */ |
| @Override |
| protected Control createControl(Composite composite, String label, int style) { |
| createLabel(composite,label); |
| |
| text = getToolkit().createText(composite, ""); //$NON-NLS-1$ |
| text.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1)); |
| text.addVerifyListener(new VerifyListener() { |
| |
| /** |
| * taken from |
| * http://dev.eclipse.org/viewcvs/viewvc.cgi/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets |
| * /Snippet19.java?view=co |
| */ |
| @Override |
| public void verifyText(VerifyEvent e) { |
| String string = e.text; |
| char[] chars = new char[string.length()]; |
| string.getChars(0, chars.length, chars, 0); |
| for (int i = 0; i < chars.length; i++) { |
| if (!('0' <= chars[i] && chars[i] <= '9') && chars[i]!='.') { |
| e.doit = false; |
| showErrorMessage(NLS.bind(Messages.FloatObjectEditor_Invalid_Character, e.text)); |
| return; |
| } |
| } |
| } |
| }); |
| |
| updateText(); |
| |
| IObservableValue<String> textObserveTextObserveWidget = WidgetProperties.text(SWT.Modify).observe((Control) text); |
| textObserveTextObserveWidget.addValueChangeListener(new IValueChangeListener<String>() { |
| @Override |
| public void handleValueChange(ValueChangeEvent<? extends String> event) { |
| |
| try { |
| final Double i = Double.parseDouble(text.getText()); |
| if (!getValue().equals(i)) |
| setFeatureValue(i); |
| } catch (NumberFormatException e) { |
| setFeatureValue(0L); |
| } |
| } |
| |
| private void setFeatureValue(final double i) { |
| getBusinessObjectDelegate().setValue(object, feature, Double.toString(i)); |
| } |
| }); |
| |
| return text; |
| } |
| |
| public Double getValue() { |
| Object v = getBusinessObjectDelegate().getValue(object, feature); |
| if (v instanceof Short) |
| return ((Short)v).doubleValue(); |
| if (v instanceof Integer) |
| return ((Integer)v).doubleValue(); |
| if (v instanceof Long) |
| return ((Long)v).doubleValue(); |
| if (v instanceof Double) |
| return (Double)v; |
| if (v instanceof BigInteger) |
| return ((BigInteger)v).doubleValue(); |
| if (v instanceof String) { |
| try { |
| return Double.parseDouble((String)v); |
| } |
| catch (Exception e){ |
| } |
| } |
| return Double.valueOf(0); |
| } |
| } |