Java tutorial
/* * ==================================================================== * * The ObjectStyle Group Software License, Version 1.0 * * Copyright (c) 2006 The ObjectStyle Group and individual authors of the * software. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * 3. The end-user documentation included with the redistribution, if any, must * include the following acknowlegement: "This product includes software * developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately, * this acknowlegement may appear in the software itself, if and wherever such * third-party acknowlegements normally appear. * * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or * promote products derived from this software without prior written permission. * For written permission, please contact andrus@objectstyle.org. * * 5. Products derived from this software may not be called "ObjectStyle" nor * may "ObjectStyle" appear in their names without prior written permission of * the ObjectStyle Group. * * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE * OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This software consists of voluntary contributions made by many individuals on * behalf of the ObjectStyle Group. For more information on the ObjectStyle * Group, please see <http://objectstyle.org/>. * */ package org.objectstyle.wolips.eomodeler.editors.attribute; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.util.HashMap; import java.util.Map; import org.eclipse.core.databinding.DataBindingContext; import org.eclipse.core.databinding.beans.BeansObservables; import org.eclipse.jface.databinding.swt.SWTObservables; import org.eclipse.jface.viewers.ComboViewer; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.StackLayout; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.layout.FormAttachment; import org.eclipse.swt.layout.FormData; import org.eclipse.swt.layout.FormLayout; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Combo; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Text; import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection; import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage; import org.objectstyle.wolips.baseforplugins.util.ComparisonUtils; import org.objectstyle.wolips.eomodeler.Activator; import org.objectstyle.wolips.eomodeler.Messages; import org.objectstyle.wolips.eomodeler.core.model.AbstractEOArgument; import org.objectstyle.wolips.eomodeler.core.model.EODataType; import org.objectstyle.wolips.eomodeler.editors.dataType.CustomDataTypePanel; import org.objectstyle.wolips.eomodeler.editors.dataType.DataDataTypePanel; import org.objectstyle.wolips.eomodeler.editors.dataType.DateDataTypePanel; import org.objectstyle.wolips.eomodeler.editors.dataType.DecimalNumberDataTypePanel; import org.objectstyle.wolips.eomodeler.editors.dataType.DoubleDataTypePanel; import org.objectstyle.wolips.eomodeler.editors.dataType.IDataTypePanel; import org.objectstyle.wolips.eomodeler.editors.dataType.IntegerDataTypePanel; import org.objectstyle.wolips.eomodeler.editors.dataType.StringDataTypePanel; import org.objectstyle.wolips.eomodeler.utils.BooleanUpdateValueStrategy; import org.objectstyle.wolips.eomodeler.utils.ComboViewerBinding; import org.objectstyle.wolips.eomodeler.utils.FormUtils; import org.objectstyle.wolips.eomodeler.utils.UglyFocusHackWorkaroundListener; public abstract class AbstractEOArgumentBasicEditorSection extends AbstractPropertySection { private static String COLUMN = "Column"; private static String DERIVED = "Derived"; private AbstractEOArgument _argument; private Text _nameText; private ComboViewer _derivedComboViewer; private Text _columnNameText; private Text _definitionText; private Text _externalTypeText; private Text _classNameText; private Button _allowNullsButton; private ComboViewer _dataTypeComboViewer; private StackLayout _columnNameDefinitionLayout; private StackLayout _dataTypeStackLayout; private Map<EODataType, Composite> _dataTypeToDataTypePanel; private DataBindingContext _bindingContext; private ComboViewerBinding _dataTypeBinding; private DataTypeChangeListener _dataTypeChangeListener; private Composite _dataTypePanel; private Composite _columnNameDefinitionComposite; public AbstractEOArgumentBasicEditorSection() { _dataTypeChangeListener = new DataTypeChangeListener(); } public AbstractEOArgument getArgument() { return _argument; } public DataBindingContext getBindingContext() { return _bindingContext; } public void createControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) { super.createControls(parent, tabbedPropertySheetPage); Composite form = getWidgetFactory().createFlatFormComposite(parent); FormLayout formLayout = new FormLayout(); form.setLayout(formLayout); Composite topForm = FormUtils.createForm(getWidgetFactory(), form); ((FormData) topForm.getLayoutData()).bottom = null; getWidgetFactory().createCLabel(topForm, Messages.getString("AbstractEOArgument." + AbstractEOArgument.NAME), SWT.NONE); _nameText = new Text(topForm, SWT.BORDER); GridData nameFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); _nameText.setLayoutData(nameFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(_nameText); Combo derivedCombo = new Combo(topForm, SWT.BORDER | SWT.FLAT | SWT.READ_ONLY); _derivedComboViewer = new ComboViewer(derivedCombo); // myDerivedComboViewer.setLabelProvider(new EODerivedLabelProvider()); _derivedComboViewer.setContentProvider(new EODerivedContentProvider()); _derivedComboViewer.setInput(new String[] { AbstractEOArgumentBasicEditorSection.COLUMN, AbstractEOArgumentBasicEditorSection.DERIVED }); _derivedComboViewer.addSelectionChangedListener(new ColumnDerivedChangeListener()); GridData derivedComboLayoutData = new GridData(GridData.FILL_HORIZONTAL); derivedCombo.setLayoutData(derivedComboLayoutData); _columnNameDefinitionComposite = getWidgetFactory().createPlainComposite(topForm, SWT.NONE); GridData columnNameDefinitionFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); _columnNameDefinitionComposite.setLayoutData(columnNameDefinitionFieldLayoutData); _columnNameDefinitionLayout = new StackLayout(); _columnNameDefinitionComposite.setLayout(_columnNameDefinitionLayout); getWidgetFactory().createCLabel(_columnNameDefinitionComposite, Messages.getString("AbstractEOArgument." + AbstractEOArgument.COLUMN_NAME), SWT.NONE); _columnNameText = new Text(_columnNameDefinitionComposite, SWT.BORDER); GridData externalNameFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); _columnNameText.setLayoutData(externalNameFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(_columnNameText); getWidgetFactory().createCLabel(_columnNameDefinitionComposite, Messages.getString("AbstractEOArgument." + AbstractEOArgument.DEFINITION), SWT.NONE); _definitionText = new Text(_columnNameDefinitionComposite, SWT.BORDER); GridData definitionFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); _definitionText.setLayoutData(definitionFieldLayoutData); _columnNameDefinitionLayout.topControl = _columnNameText; UglyFocusHackWorkaroundListener.addListener(_definitionText); getWidgetFactory().createCLabel(topForm, Messages.getString("AbstractEOArgument.settings"), SWT.NONE); Composite settingsComposite = new Composite(topForm, SWT.NONE); settingsComposite.setBackground(topForm.getBackground()); FillLayout settingsLayout = new FillLayout(SWT.HORIZONTAL); settingsLayout.spacing = 10; settingsComposite.setLayout(settingsLayout); GridData settingsLayoutData = new GridData(GridData.FILL_HORIZONTAL); settingsLayoutData.heightHint = 25; settingsComposite.setLayoutData(settingsLayoutData); _addSettings(settingsComposite); _allowNullsButton = new Button(settingsComposite, SWT.TOGGLE | SWT.FLAT); _allowNullsButton .setToolTipText(Messages.getString("AbstractEOArgument." + AbstractEOArgument.ALLOWS_NULL)); _allowNullsButton.setImage(Activator.getDefault().getImageRegistry().get(Activator.ALLOW_NULL_ICON)); _addComponents(topForm); getWidgetFactory().createCLabel(topForm, Messages.getString("AbstractEOArgument." + AbstractEOArgument.DATA_TYPE), SWT.NONE); Combo dataTypeCombo = new Combo(topForm, SWT.BORDER | SWT.FLAT | SWT.READ_ONLY); _dataTypeComboViewer = new ComboViewer(dataTypeCombo); _dataTypeComboViewer.setLabelProvider(new EODataTypeLabelProvider()); _dataTypeComboViewer.setContentProvider(new EODataTypeContentProvider()); //_dataTypeComboViewer.setSorter(new ViewerSorter()); _dataTypeComboViewer.setInput(EODataType.DATA_TYPES); GridData dataTypeComboLayoutData = new GridData(GridData.FILL_HORIZONTAL); dataTypeCombo.setLayoutData(dataTypeComboLayoutData); getWidgetFactory().createCLabel(topForm, Messages.getString("AbstractEOArgument." + AbstractEOArgument.EXTERNAL_TYPE), SWT.NONE); _externalTypeText = new Text(topForm, SWT.BORDER); GridData externalTypeFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); _externalTypeText.setLayoutData(externalTypeFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(_externalTypeText); getWidgetFactory().createCLabel(topForm, Messages.getString("AbstractEOArgument." + AbstractEOArgument.CLASS_NAME), SWT.NONE); _classNameText = new Text(topForm, SWT.BORDER); GridData classNameFieldLayoutData = new GridData(GridData.FILL_HORIZONTAL); _classNameText.setLayoutData(classNameFieldLayoutData); UglyFocusHackWorkaroundListener.addListener(_classNameText); _dataTypePanel = getWidgetFactory().createPlainComposite(form, SWT.NONE); FormData dataTypeFormData = new FormData(); dataTypeFormData.top = new FormAttachment(topForm, 0); dataTypeFormData.left = new FormAttachment(0, 6); dataTypeFormData.right = new FormAttachment(100, -5); _dataTypePanel.setLayoutData(dataTypeFormData); _dataTypeStackLayout = new StackLayout(); _dataTypePanel.setLayout(_dataTypeStackLayout); _dataTypeToDataTypePanel = new HashMap<EODataType, Composite>(); _dataTypeToDataTypePanel.put(EODataType.BIGDECIMAL, new DecimalNumberDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.BYTE, new StringDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.CUSTOM, new CustomDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.DATA, new DataDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.DATE, new DateDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.DATE_MSSQL, new DateDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.DATE_OBJ, new DateDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.DECIMAL_NUMBER, new DecimalNumberDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.BOOLEAN, new IntegerDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.DOUBLE, new DoubleDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.FLOAT, new DoubleDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.INTEGER, new IntegerDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.LONG, new IntegerDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.SHORT, new IntegerDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.STRING, new StringDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.STRING_CHAR, new StringDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.STRING_RTRIM, new StringDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); //_dataTypeToDataTypePanel.put(EODataType.STRING_SET, new StringDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.STRING_UTF, new StringDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.TIME, new DateDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); _dataTypeToDataTypePanel.put(EODataType.TIMESTAMP, new DateDataTypePanel(_dataTypePanel, SWT.NONE, getWidgetFactory())); for (Composite dataTypePanel : _dataTypeToDataTypePanel.values()) { dataTypePanel.setBackground(_dataTypePanel.getBackground()); getWidgetFactory().paintBordersFor(dataTypePanel); } } public void setArgument(AbstractEOArgument argument) { if (!ComparisonUtils.equals(argument, _argument)) { disposeBindings(); _argument = argument; if (_argument != null) { // myArgumentTypeComboViewer.setInput(myAttribute); _bindingContext = new DataBindingContext(); _bindingContext.bindValue(SWTObservables.observeText(_nameText, SWT.Modify), BeansObservables.observeValue(_argument, AbstractEOArgument.NAME), null, null); _bindingContext.bindValue(SWTObservables.observeText(_columnNameText, SWT.Modify), BeansObservables.observeValue(_argument, AbstractEOArgument.COLUMN_NAME), null, null); _bindingContext.bindValue(SWTObservables.observeText(_definitionText, SWT.Modify), BeansObservables.observeValue(_argument, AbstractEOArgument.DEFINITION), null, null); _bindingContext.bindValue(SWTObservables.observeText(_externalTypeText, SWT.Modify), BeansObservables.observeValue(_argument, AbstractEOArgument.EXTERNAL_TYPE), null, null); _bindingContext.bindValue(SWTObservables.observeText(_classNameText, SWT.Modify), BeansObservables.observeValue(_argument, AbstractEOArgument.CLASS_NAME), null, null); _bindingContext.bindValue(SWTObservables.observeSelection(_allowNullsButton), BeansObservables.observeValue(_argument, AbstractEOArgument.ALLOWS_NULL), null, new BooleanUpdateValueStrategy()); _argumentChanged(argument); _dataTypeBinding = new ComboViewerBinding(_dataTypeComboViewer, _argument, AbstractEOArgument.DATA_TYPE, null, null, null); if (_argument.getDefinition() == null) { _derivedComboViewer .setSelection(new StructuredSelection(AbstractEOArgumentBasicEditorSection.COLUMN)); } else { _derivedComboViewer .setSelection(new StructuredSelection(AbstractEOArgumentBasicEditorSection.DERIVED)); } // Iterator dataTypePanelsIter = // myDataTypeToDataTypePanel.values().iterator(); // while (dataTypePanelsIter.hasNext()) { // IDataTypePanel dataTypePanel = (IDataTypePanel) // dataTypePanelsIter.next(); // dataTypePanel.setArgument(_argument); // } updateAttributePanel(null); if (_argument != null) { _argument.addPropertyChangeListener(AbstractEOArgument.DATA_TYPE, _dataTypeChangeListener); } } } } protected abstract void _addSettings(Composite settings); protected abstract void _addComponents(Composite parent); protected abstract void _argumentChanged(AbstractEOArgument argument); protected void disposeBindings() { if (_bindingContext != null) { _bindingContext.dispose(); } if (_argument != null) { _argument.removePropertyChangeListener(AbstractEOArgument.DATA_TYPE, _dataTypeChangeListener); } if (_dataTypeBinding != null) { _dataTypeBinding.dispose(); } } public void dispose() { disposeBindings(); if (_dataTypeToDataTypePanel != null) { for (Composite dataTypePanel : _dataTypeToDataTypePanel.values()) { ((IDataTypePanel) dataTypePanel).setArgument(null); } } super.dispose(); } protected void updateTextfromDerivedComboViewer() { IStructuredSelection selection = (IStructuredSelection) _derivedComboViewer.getSelection(); if (AbstractEOArgumentBasicEditorSection.COLUMN.equals(selection.getFirstElement())) { _columnNameDefinitionLayout.topControl = _columnNameText; if (_argument.getDefinition() != null) { _argument.setDefinition(null); } } else { _columnNameDefinitionLayout.topControl = _definitionText; } _columnNameDefinitionComposite.layout(); } @SuppressWarnings("unused") protected void updateAttributePanel(EODataType oldDataType) { // System.out.println( // "AbstractEOArgumentBasicEditorSection.updateAttributePanel: // updateAttributePanel"); if (_argument != null) { EODataType dataType = _argument.getDataType(); Composite dataTypePanel = _dataTypeToDataTypePanel.get(dataType); if (dataTypePanel == null) { dataTypePanel = _dataTypeToDataTypePanel.get(EODataType.CUSTOM); } if (_dataTypeStackLayout.topControl instanceof IDataTypePanel) { ((IDataTypePanel) _dataTypeStackLayout.topControl).setArgument(null); } if (dataTypePanel instanceof IDataTypePanel) { ((IDataTypePanel) dataTypePanel).setArgument(_argument); } _dataTypeStackLayout.topControl = dataTypePanel; _classNameText.setEnabled(dataTypePanel != _dataTypeToDataTypePanel.get(EODataType.CUSTOM)); _dataTypePanel.layout(); } } protected class ColumnDerivedChangeListener implements ISelectionChangedListener { public void selectionChanged(SelectionChangedEvent event) { AbstractEOArgumentBasicEditorSection.this.updateTextfromDerivedComboViewer(); } } protected class DataTypeChangeListener implements PropertyChangeListener { public void propertyChange(PropertyChangeEvent event) { EODataType oldDataType = (EODataType) event.getOldValue(); // System.out.println("DataTypeChangeListener.propertyChange: " + // _event.getNewValue()); AbstractEOArgumentBasicEditorSection.this.updateAttributePanel(oldDataType); } } }