Java tutorial
/******************************************************************************* * Copyright (c) 2008 Red Hat, Inc. * Distributed under license by 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 ******************************************************************************/ package org.jboss.tools.smooks.configuration.editors; import org.eclipse.emf.common.command.Command; import org.eclipse.emf.common.command.CompoundCommand; import org.eclipse.emf.ecore.EObject; import org.eclipse.emf.ecore.EStructuralFeature; import org.eclipse.emf.edit.command.MoveCommand; import org.eclipse.emf.edit.command.RemoveCommand; import org.eclipse.emf.edit.domain.AdapterFactoryEditingDomain; import org.eclipse.emf.edit.domain.EditingDomain; import org.eclipse.emf.edit.ui.provider.AdapterFactoryContentProvider; import org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider; import org.eclipse.jface.dialogs.Dialog; import org.eclipse.jface.viewers.DecoratingLabelProvider; import org.eclipse.jface.viewers.DoubleClickEvent; import org.eclipse.jface.viewers.IDoubleClickListener; import org.eclipse.jface.viewers.ISelectionChangedListener; import org.eclipse.jface.viewers.IStructuredSelection; import org.eclipse.jface.viewers.SelectionChangedEvent; import org.eclipse.jface.viewers.TableViewer; import org.eclipse.swt.SWT; import org.eclipse.swt.events.SelectionAdapter; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Button; import org.eclipse.swt.widgets.Composite; import org.eclipse.ui.IEditorPart; import org.eclipse.ui.forms.widgets.FormToolkit; import org.jboss.tools.smooks.configuration.SmooksConfigurationActivator; import org.jboss.tools.smooks.editor.ISmooksModelProvider; import org.jboss.tools.smooks.model.common.AbstractAnyType; /** * @author Dart * */ public class ModelChildrenTablePanelCreator { private ISmooksModelProvider smooksModelProvider; protected TableViewer childrenTableViewer; private Button newChildButton; private Button removeRemoveButton; private Button upChildButton; private Button downChildButton; private Button childPropertiesButton; private EObject parentModel; private FormToolkit toolkit; private IEditorPart editorPart; public ModelChildrenTablePanelCreator(ISmooksModelProvider smooksModelProvider, EObject parentModel, FormToolkit toolkit, IEditorPart editorPart) { this.parentModel = parentModel; this.smooksModelProvider = smooksModelProvider; this.toolkit = toolkit; this.editorPart = editorPart; } public Composite createChildrenTablePanel(Composite parent) { Composite mainComposite = toolkit.createComposite(parent); GridLayout gl = new GridLayout(); gl.numColumns = 2; mainComposite.setLayout(gl); createChildrenTablePanel(mainComposite, toolkit); return mainComposite; } protected void createChildrenTablePanel(Composite mainComposite, FormToolkit toolkit) { if (smooksModelProvider != null) { AdapterFactoryEditingDomain editingDomain = (AdapterFactoryEditingDomain) smooksModelProvider .getEditingDomain(); EObject parentModel = getParentModel(); childrenTableViewer = new TableViewer(mainComposite); GridData gd = new GridData(GridData.FILL_BOTH); childrenTableViewer.getControl().setLayoutData(gd); toolkit.paintBordersFor(mainComposite); Composite buttonArea = toolkit.createComposite(mainComposite); gd = new GridData(GridData.FILL_VERTICAL); gd.widthHint = 30; GridLayout bgl = new GridLayout(); buttonArea.setLayout(bgl); newChildButton = toolkit.createButton(buttonArea, Messages.ModelChildrenTablePanelCreator_NewButtonLabel, SWT.NONE); gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalAlignment = GridData.BEGINNING; newChildButton.setLayoutData(gd); removeRemoveButton = toolkit.createButton(buttonArea, Messages.ModelChildrenTablePanelCreator_RemoveButtonLabel, SWT.NONE); gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalAlignment = GridData.BEGINNING; removeRemoveButton.setLayoutData(gd); upChildButton = toolkit.createButton(buttonArea, Messages.ModelChildrenTablePanelCreator_UpButtonLabel, SWT.NONE); gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalAlignment = GridData.BEGINNING; upChildButton.setLayoutData(gd); downChildButton = toolkit.createButton(buttonArea, Messages.ModelChildrenTablePanelCreator_DownButtonLable, SWT.NONE); gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalAlignment = GridData.BEGINNING; downChildButton.setLayoutData(gd); childPropertiesButton = toolkit.createButton(buttonArea, Messages.ModelChildrenTablePanelCreator_PropertiesButtonLabel, SWT.NONE); gd = new GridData(GridData.FILL_HORIZONTAL); gd.verticalAlignment = GridData.BEGINNING; childPropertiesButton.setLayoutData(gd); childrenTableViewer .setContentProvider(new AdapterFactoryContentProvider(editingDomain.getAdapterFactory()) { @Override public boolean hasChildren(Object object) { return false; } }); childrenTableViewer.setLabelProvider( new DecoratingLabelProvider(new AdapterFactoryLabelProvider(editingDomain.getAdapterFactory()) { /* * (non-Javadoc) * * @see * org.eclipse.emf.edit.ui.provider.AdapterFactoryLabelProvider * # getText(java.lang.Object) */ @Override public String getText(Object object) { Object obj = AdapterFactoryEditingDomain.unwrap(object); if (obj instanceof AbstractAnyType) { return super.getText(obj); } return super.getText(object); } }, SmooksConfigurationActivator.getDefault().getWorkbench().getDecoratorManager() .getLabelDecorator())); if (parentModel != null) { childrenTableViewer.setInput(parentModel); } childrenTableViewer.addDoubleClickListener(new IDoubleClickListener() { public void doubleClick(DoubleClickEvent event) { openChildPropertiesModifyDialog(); } }); childrenTableViewer.addSelectionChangedListener(new ISelectionChangedListener() { public void selectionChanged(SelectionChangedEvent event) { updateButtons(); } }); hookButtons(); updateButtons(); } } protected TableViewer getChildrenTableViewer() { return childrenTableViewer; } protected EObject newChildModel() { return null; } protected EStructuralFeature getChildrenFeature() { return null; } protected boolean performNewChild() { return true; } protected void endNewChild() { } protected void performRemoveChild() { } protected void endRemoveChild() { } protected void hookButtons() { newChildButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { if (getSmooksVersion() == null) { return; } if (performNewChild()) { EObject childModel = newChildModel(); EObject parent = getParentModel(); if (parent == null || childModel == null) { return; } EStructuralFeature profileFeature = getChildrenFeature(); try { NewOrModifySmooksElementDialog dialog = new NewOrModifySmooksElementDialog( editorPart.getEditorSite().getShell(), profileFeature, childModel, parent, toolkit, smooksModelProvider, editorPart, false); if (dialog.open() == Dialog.OK) { endNewChild(); } } catch (Throwable e1) { e1.printStackTrace(); } } super.widgetSelected(e); } }); removeRemoveButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { IStructuredSelection selection = (IStructuredSelection) childrenTableViewer.getSelection(); if (selection == null) return; Object obj = selection.getFirstElement(); if (obj instanceof EObject) { performRemoveChild(); EObject profile = (EObject) obj; EObject parent = getParentModel(); if (parent == null) return; CompoundCommand compoundCommand = new CompoundCommand(); Command command = RemoveCommand.create(smooksModelProvider.getEditingDomain(), profile); compoundCommand.append(command); performRunRemoveCommand(compoundCommand, smooksModelProvider.getEditingDomain()); smooksModelProvider.getEditingDomain().getCommandStack().execute(compoundCommand); endRemoveChild(); } } }); upChildButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { IStructuredSelection selection = (IStructuredSelection) childrenTableViewer.getSelection(); if (selection == null) return; Object obj = selection.getFirstElement(); if (obj instanceof EObject) { EObject profilesType = getParentModel(); if (profilesType == null) return; EObject v = (EObject) AdapterFactoryEditingDomain.unwrap(obj); EObject parent = v.eContainer(); int index = parent.eContents().indexOf(v); Command command = MoveCommand.create(smooksModelProvider.getEditingDomain(), parent, null, obj, index - 1); smooksModelProvider.getEditingDomain().getCommandStack().execute(command); } } }); downChildButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { IStructuredSelection selection = (IStructuredSelection) childrenTableViewer.getSelection(); if (selection == null) return; Object obj = selection.getFirstElement(); if (obj instanceof EObject) { EObject profilesType = getParentModel(); if (profilesType == null) return; EObject v = (EObject) AdapterFactoryEditingDomain.unwrap(obj); EObject parent = v.eContainer(); int index = parent.eContents().indexOf(v); Command command = MoveCommand.create(smooksModelProvider.getEditingDomain(), parent, null, obj, index + 1); smooksModelProvider.getEditingDomain().getCommandStack().execute(command); } } }); childPropertiesButton.addSelectionListener(new SelectionAdapter() { @Override public void widgetSelected(SelectionEvent e) { openChildPropertiesModifyDialog(); super.widgetSelected(e); } }); } protected void performRunRemoveCommand(CompoundCommand compoundCommand, EditingDomain editDomain) { } protected void updateButtons() { if (getSmooksVersion() == null) { childPropertiesButton.setEnabled(false); newChildButton.setEnabled(false); removeRemoveButton.setEnabled(false); upChildButton.setEnabled(false); downChildButton.setEnabled(false); return; } childPropertiesButton.setEnabled(true); removeRemoveButton.setEnabled(true); IStructuredSelection selection = (IStructuredSelection) childrenTableViewer.getSelection(); if (selection == null) { childPropertiesButton.setEnabled(false); removeRemoveButton.setEnabled(false); upChildButton.setEnabled(false); downChildButton.setEnabled(false); } else { if (selection.getFirstElement() == null) { childPropertiesButton.setEnabled(false); removeRemoveButton.setEnabled(false); upChildButton.setEnabled(false); downChildButton.setEnabled(false); return; } Object obj = selection.getFirstElement(); if (obj instanceof EObject) { EObject profilesType = getParentModel(); if (profilesType == null) return; EObject v = (EObject) AdapterFactoryEditingDomain.unwrap(obj); EObject parent = v.eContainer(); int index = parent.eContents().indexOf(v); Command command = MoveCommand.create(smooksModelProvider.getEditingDomain(), parent, null, obj, index - 1); upChildButton.setEnabled(command.canExecute()); Command command1 = MoveCommand.create(smooksModelProvider.getEditingDomain(), parent, null, obj, index + 1); downChildButton.setEnabled(command1.canExecute()); } if (selection.size() > 1) { childPropertiesButton.setEnabled(false); removeRemoveButton.setEnabled(false); } } } protected void openChildPropertiesModifyDialog() { IStructuredSelection selection = (IStructuredSelection) childrenTableViewer.getSelection(); if (selection == null) return; Object obj = selection.getFirstElement(); if (obj instanceof EObject) { EObject child = (EObject) obj; EObject parent = getParentModel(); EStructuralFeature childFeature = getChildrenFeature(); NewOrModifySmooksElementDialog dialog = new NewOrModifySmooksElementDialog( editorPart.getEditorSite().getShell(), childFeature, child, parent, toolkit, smooksModelProvider, editorPart, true); dialog.open(); } } public EObject getParentModel() { return parentModel; } public void setParentModel(EObject parentModel) { this.parentModel = parentModel; } public String getSmooksVersion() { if (this.smooksModelProvider != null) { return this.smooksModelProvider.getPlatformVersion(); } return null; } }