| /******************************************************************************* |
| * Copyright (c) 2007, 2008 Oracle. All rights reserved. |
| * This program and the accompanying materials are 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: |
| * Oracle - initial API and implementation |
| ******************************************************************************/ |
| package org.eclipse.jpt.ui.internal.mappings.details; |
| |
| import org.eclipse.jpt.core.JpaProject; |
| import org.eclipse.jpt.core.context.Generator; |
| import org.eclipse.jpt.core.context.GeneratorHolder; |
| import org.eclipse.jpt.core.context.IdMapping; |
| import org.eclipse.jpt.ui.internal.mappings.JptUiMappingsMessages; |
| import org.eclipse.jpt.ui.internal.util.LabeledControlUpdater; |
| import org.eclipse.jpt.ui.internal.util.LabeledLabel; |
| import org.eclipse.jpt.ui.internal.widgets.Pane; |
| import org.eclipse.jpt.utility.internal.model.value.PropertyAspectAdapter; |
| import org.eclipse.jpt.utility.internal.model.value.TransformationPropertyValueModel; |
| import org.eclipse.jpt.utility.model.value.PropertyValueModel; |
| import org.eclipse.jpt.utility.model.value.WritablePropertyValueModel; |
| import org.eclipse.osgi.util.NLS; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Spinner; |
| |
| /** |
| * This is the generic pane for a generator. |
| * |
| * @see IdMapping |
| * @see Generator |
| * @see SequenceGeneratorComposite - A sub-pane |
| * @see TalbeGeneratorComposite - A sub-pane |
| * |
| * @version 2.0 |
| * @since 1.0 |
| */ |
| @SuppressWarnings("nls") |
| public abstract class GeneratorComposite<T extends Generator> extends Pane<GeneratorHolder> |
| { |
| /** |
| * Creates a new <code>GeneratorComposite</code>. |
| * |
| * @param parentPane The parent container of this one |
| * @param parent The parent container |
| */ |
| public GeneratorComposite(Pane<? extends GeneratorHolder> parentPane, |
| Composite parent) { |
| |
| super(parentPane, parent); |
| } |
| |
| private WritablePropertyValueModel<Integer> buildAllocationSizeHolder() { |
| return new PropertyAspectAdapter<Generator, Integer>(buildGeneratorHolder(), Generator.SPECIFIED_ALLOCATION_SIZE_PROPERTY) { |
| @Override |
| protected Integer buildValue_() { |
| Integer value = subject.getSpecifiedAllocationSize(); |
| if (value == null) { |
| return -1; |
| } |
| return value; |
| } |
| |
| @Override |
| public void setValue(Integer value) { |
| if (subject != null) { |
| setValue_(value); |
| return; |
| } |
| if (value == -1) { |
| return; |
| } |
| retrieveGenerator(getSubject()).setSpecifiedAllocationSize(value); |
| } |
| |
| @Override |
| protected void setValue_(Integer value) { |
| if (value == -1) { |
| value = null; |
| } |
| subject.setSpecifiedAllocationSize(value); |
| } |
| }; |
| } |
| |
| private WritablePropertyValueModel<Integer> buildDefaultAllocationSizeHolder() { |
| return new PropertyAspectAdapter<Generator, Integer>(buildGeneratorHolder(), Generator.DEFAULT_ALLOCATION_SIZE_PROPERTY) { |
| @Override |
| protected Integer buildValue_() { |
| return subject.getDefaultAllocationSize(); |
| } |
| |
| @Override |
| protected void subjectChanged() { |
| Object oldValue = this.getValue(); |
| super.subjectChanged(); |
| Object newValue = this.getValue(); |
| |
| // Make sure the default value is appended to the text |
| if (oldValue == newValue && newValue == null) { |
| this.fireAspectChange(Integer.MIN_VALUE, newValue); |
| } |
| } |
| }; |
| } |
| |
| private Control addDefaultAllocationSizeLabel(Composite container) { |
| |
| Label label = addLabel( |
| container, |
| JptUiMappingsMessages.DefaultWithoutValue |
| ); |
| |
| new LabeledControlUpdater( |
| new LabeledLabel(label), |
| buildDefaultAllocationSizeLabelHolder() |
| ); |
| |
| return label; |
| } |
| |
| private PropertyValueModel<String> buildDefaultAllocationSizeLabelHolder() { |
| |
| return new TransformationPropertyValueModel<Integer, String>(buildDefaultAllocationSizeHolder()) { |
| |
| @Override |
| protected String transform(Integer value) { |
| |
| if (value != null) { |
| return NLS.bind(JptUiMappingsMessages.DefaultWithValue, value); |
| } |
| |
| return ""; |
| } |
| }; |
| } |
| |
| private WritablePropertyValueModel<Integer> buildDefaultInitialValueHolder() { |
| return new PropertyAspectAdapter<Generator, Integer>(buildGeneratorHolder(), Generator.DEFAULT_INITIAL_VALUE_PROPERTY) { |
| @Override |
| protected Integer buildValue_() { |
| return subject.getDefaultInitialValue(); |
| } |
| |
| @Override |
| protected void subjectChanged() { |
| Object oldValue = this.getValue(); |
| super.subjectChanged(); |
| Object newValue = this.getValue(); |
| |
| // Make sure the default value is appended to the text |
| if (oldValue == newValue && newValue == null) { |
| this.fireAspectChange(Integer.MIN_VALUE, newValue); |
| } |
| } |
| }; |
| } |
| |
| private Control addDefaultInitialValueLabel(Composite container) { |
| |
| Label label = addLabel( |
| container, |
| JptUiMappingsMessages.DefaultWithoutValue |
| ); |
| |
| new LabeledControlUpdater( |
| new LabeledLabel(label), |
| buildDefaultInitialValueLabelHolder() |
| ); |
| |
| return label; |
| } |
| |
| private PropertyValueModel<String> buildDefaultInitialValueLabelHolder() { |
| |
| return new TransformationPropertyValueModel<Integer, String>(buildDefaultInitialValueHolder()) { |
| |
| @Override |
| protected String transform(Integer value) { |
| |
| if (value != null) { |
| return NLS.bind(JptUiMappingsMessages.DefaultWithValue, value); |
| } |
| |
| return ""; |
| } |
| }; |
| } |
| |
| /** |
| * Creates the new <code>IGenerator</code>. |
| * |
| * @param subject The subject used to retrieve the generator |
| * @return The newly created <code>IGenerator</code> |
| */ |
| protected abstract T buildGenerator(GeneratorHolder subject); |
| |
| private PropertyValueModel<Generator> buildGeneratorHolder() { |
| return new PropertyAspectAdapter<GeneratorHolder, Generator>(getSubjectHolder(), getPropertyName()) { |
| @Override |
| protected Generator buildValue_() { |
| return GeneratorComposite.this.getGenerator(subject); |
| } |
| }; |
| } |
| |
| protected final WritablePropertyValueModel<String> buildGeneratorNameHolder() { |
| return new PropertyAspectAdapter<Generator, String>(buildGeneratorHolder(), Generator.NAME_PROPERTY) { |
| @Override |
| protected String buildValue_() { |
| return subject.getName(); |
| } |
| |
| @Override |
| public void setValue(String value) { |
| if (subject != null) { |
| setValue_(value); |
| return; |
| } |
| if (value.length() == 0) { |
| return; |
| } |
| retrieveGenerator(getSubject()).setName(value); |
| } |
| |
| @Override |
| protected void setValue_(String value) { |
| if (value.length() == 0) { |
| value = null; |
| } |
| subject.setName(value); |
| } |
| }; |
| } |
| |
| private WritablePropertyValueModel<Integer> buildInitialValueHolder() { |
| return new PropertyAspectAdapter<Generator, Integer>(buildGeneratorHolder(), Generator.SPECIFIED_INITIAL_VALUE_PROPERTY) { |
| @Override |
| protected Integer buildValue_() { |
| Integer value = subject.getSpecifiedInitialValue(); |
| |
| if (value == null) { |
| return -1; |
| } |
| |
| return value; |
| } |
| |
| @Override |
| public void setValue(Integer value) { |
| if (subject != null) { |
| setValue_(value); |
| return; |
| } |
| if (value == -1) { |
| return; |
| } |
| retrieveGenerator(getSubject()).setSpecifiedInitialValue(value); |
| } |
| |
| @Override |
| protected void setValue_(Integer value) { |
| if (value == -1) { |
| value = null; |
| } |
| subject.setSpecifiedInitialValue(value); |
| } |
| }; |
| } |
| |
| /** |
| * Retrieves without creating the <code>Generator</code> from the subject. |
| * |
| * @return The <code>Generator</code> or <code>null</code> if it doesn't |
| * exists |
| */ |
| protected final T getGenerator() { |
| return (this.getSubject() == null) ? null : this.getGenerator(this.getSubject()); |
| } |
| |
| /** |
| * Retrieves without creating the <code>Generator</code> from the subject. |
| * |
| * @param subject The subject used to retrieve the generator |
| * @return The <code>Generator</code> or <code>null</code> if it doesn't |
| * exists |
| */ |
| protected abstract T getGenerator(GeneratorHolder subject); |
| |
| /** |
| * Creates the labeled spinner responsible to edit the allocation size. The |
| * default value will be shown after the spinner. A value of -1 means the |
| * default value and the model has <code>null</code>. |
| * |
| * @param container The parent container |
| */ |
| protected void initializeAllocationSizeWidgets(Composite container) { |
| |
| Spinner spinner = addLabeledSpinner( |
| container, |
| JptUiMappingsMessages.GeneratorComposite_allocationSize, |
| buildAllocationSizeHolder(), |
| -1, |
| -1, |
| Integer.MAX_VALUE, |
| addDefaultAllocationSizeLabel(container), |
| null |
| ); |
| |
| updateGridData(container, spinner); |
| } |
| |
| /** |
| * Creates the labeled spinner responsible to edit the initial value. The |
| * default value will be shown after the spinner. A value of -1 means the |
| * default value and the model has <code>null</code>. |
| * |
| * @param container The parent container |
| */ |
| protected void initializeInitialValueWidgets(Composite container) { |
| |
| Spinner spinner = addLabeledSpinner( |
| container, |
| JptUiMappingsMessages.GeneratorComposite_initialValue, |
| buildInitialValueHolder(), |
| -1, |
| -1, |
| Integer.MAX_VALUE, |
| addDefaultInitialValueLabel(container), |
| null |
| ); |
| |
| |
| updateGridData(container, spinner); |
| } |
| |
| /** |
| * Retrieves the JPA project. |
| * |
| * @return The JPA project or <code>null</code> if the subject is <code>null</code> |
| */ |
| protected final JpaProject getJpaProject() { |
| return this.getSubject() == null ? null : this.getSubject().getJpaProject(); |
| } |
| |
| /** |
| * Returns the property name used to listen to the ID mapping when the |
| * generator changes. |
| * |
| * @return The property name associated with the generator |
| */ |
| protected abstract String getPropertyName(); |
| |
| /** |
| * Retrieves the <code>Generator</code> and if it is <code>null</code>, then |
| * create it. |
| * |
| * @param subject The subject used to retrieve the generator |
| * @return The <code>Generator</code> which should never be <code>null</code> |
| */ |
| protected final T retrieveGenerator(GeneratorHolder subject) { |
| T generator = this.getGenerator(subject); |
| |
| if (generator == null) { |
| generator = this.buildGenerator(subject); |
| } |
| |
| return generator; |
| } |
| |
| /** |
| * Changes the layout of the given container by changing which widget will |
| * grab the excess of horizontal space. By default, the center control grabs |
| * the excess space, we change it to be the right control. |
| * |
| * @param container The container containing the controls needing their |
| * <code>GridData</code> to be modified from the default values |
| * @param spinner The spinner that got created |
| */ |
| private void updateGridData(Composite container, Spinner spinner) { |
| |
| // It is possible the spinner's parent is not the container of the |
| // label, spinner and right control (a pane is sometimes required for |
| // painting the spinner's border) |
| Composite paneContainer = spinner.getParent(); |
| |
| while (container != paneContainer.getParent()) { |
| paneContainer = paneContainer.getParent(); |
| } |
| |
| Control[] controls = paneContainer.getChildren(); |
| |
| GridData gridData = new GridData(); |
| gridData.grabExcessHorizontalSpace = false; |
| gridData.horizontalAlignment = GridData.BEGINNING; |
| controls[1].setLayoutData(gridData); |
| |
| controls[2].setLayoutData(new GridData(GridData.FILL_HORIZONTAL)); |
| removeAlignRight(controls[2]); |
| } |
| } |