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/*******************************************************************************
* Copyright (c) 2010 BestSolution.at and others.
* 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:
* Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
******************************************************************************/
package org.eclipse.e4.tools.emf.ui.internal.common.component.virtual;
import java.util.ArrayList;
import java.util.List;
import javax.annotation.PostConstruct;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.value.WritableValue;
import org.eclipse.e4.tools.emf.ui.common.Util;
import org.eclipse.e4.tools.emf.ui.common.component.AbstractComponentEditor;
import org.eclipse.e4.tools.emf.ui.internal.ResourceProvider;
import org.eclipse.e4.tools.emf.ui.internal.common.ComponentLabelProvider;
import org.eclipse.e4.tools.emf.ui.internal.common.VirtualEntry;
import org.eclipse.e4.ui.model.application.ui.MElementContainer;
import org.eclipse.e4.ui.model.application.ui.MUIElement;
import org.eclipse.e4.ui.model.application.ui.basic.impl.BasicPackageImpl;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.databinding.EMFDataBindingContext;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.edit.command.AddCommand;
import org.eclipse.emf.edit.command.RemoveCommand;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.databinding.viewers.ObservableListContentProvider;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CTabFolder;
import org.eclipse.swt.custom.CTabItem;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
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.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
public abstract class VWindowEditor extends AbstractComponentEditor {
private Composite composite;
private EMFDataBindingContext context;
private TableViewer viewer;
private List<Action> actions = new ArrayList<Action>();
private EStructuralFeature targetFeature;
public VWindowEditor(EStructuralFeature targetFeature) {
super();
this.targetFeature = targetFeature;
}
@PostConstruct
void init() {
actions.add(new Action(Messages.VWindowEditor_AddTrimmedWindow, createImageDescriptor(ResourceProvider.IMG_Window)) {
@Override
public void run() {
handleAdd(BasicPackageImpl.Literals.TRIMMED_WINDOW);
}
});
actions.add(new Action(Messages.VWindowEditor_AddWindow, createImageDescriptor(ResourceProvider.IMG_Window)) {
@Override
public void run() {
handleAdd(BasicPackageImpl.Literals.WINDOW);
}
});
}
@Override
public Image getImage(Object element, Display display) {
return null;
}
@Override
public String getLabel(Object element) {
return Messages.VWindowEditor_TreeLabel;
}
@Override
public String getDetailLabel(Object element) {
return null;
}
@Override
public String getDescription(Object element) {
return Messages.VWindowEditor_TreeLabelDescription;
}
@Override
public Composite doGetEditor(Composite parent, Object object) {
if (composite == null) {
context = new EMFDataBindingContext();
composite = createForm(parent, context, getMaster());
}
VirtualEntry<?> o = (VirtualEntry<?>) object;
viewer.setInput(o.getList());
getMaster().setValue(o.getOriginalParent());
return composite;
}
private Composite createForm(Composite parent, EMFDataBindingContext context, WritableValue master) {
CTabFolder folder = new CTabFolder(parent, SWT.BOTTOM);
CTabItem item = new CTabItem(folder, SWT.NONE);
item.setText(Messages.ModelTooling_Common_TabDefault);
parent = createScrollableContainer(folder);
item.setControl(parent.getParent());
Label l = new Label(parent, SWT.NONE);
l.setText(Messages.VWindowEditor_Windows);
l.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
viewer = new TableViewer(parent);
ObservableListContentProvider cp = new ObservableListContentProvider();
viewer.setContentProvider(cp);
viewer.setLabelProvider(new ComponentLabelProvider(getEditor(), Messages));
GridData gd = new GridData(GridData.FILL_BOTH);
viewer.getControl().setLayoutData(gd);
Composite buttonComp = new Composite(parent, SWT.NONE);
buttonComp.setLayoutData(new GridData(GridData.FILL, GridData.END, false, false));
GridLayout gl = new GridLayout(2, false);
gl.marginLeft = 0;
gl.marginRight = 0;
gl.marginWidth = 0;
gl.marginHeight = 0;
buttonComp.setLayout(gl);
Button b = new Button(buttonComp, SWT.PUSH | SWT.FLAT);
b.setText(Messages.ModelTooling_Common_Up);
b.setImage(createImage(ResourceProvider.IMG_Obj16_arrow_up));
b.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
b.addSelectionListener(new SelectionAdapter() {
@SuppressWarnings("unchecked")
@Override
public void widgetSelected(SelectionEvent e) {
if (!viewer.getSelection().isEmpty()) {
IStructuredSelection s = (IStructuredSelection) viewer.getSelection();
if (s.size() == 1) {
Object obj = s.getFirstElement();
EObject container = (EObject) getMaster().getValue();
List<Object> l = (List<Object>) container.eGet(targetFeature);
int idx = l.indexOf(obj) - 1;
if (idx >= 0) {
if (Util.moveElementByIndex(getEditingDomain(), (MUIElement) obj, getEditor().isLiveModel(), idx, targetFeature)) {
viewer.setSelection(new StructuredSelection(obj));
}
}
}
}
}
});
b = new Button(buttonComp, SWT.PUSH | SWT.FLAT);
b.setText(Messages.ModelTooling_Common_Down);
b.setImage(createImage(ResourceProvider.IMG_Obj16_arrow_down));
b.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
b.addSelectionListener(new SelectionAdapter() {
@SuppressWarnings("unchecked")
@Override
public void widgetSelected(SelectionEvent e) {
if (!viewer.getSelection().isEmpty()) {
IStructuredSelection s = (IStructuredSelection) viewer.getSelection();
if (s.size() == 1) {
Object obj = s.getFirstElement();
EObject container = (EObject) getMaster().getValue();
List<Object> l = (List<Object>) container.eGet(targetFeature);
int idx = l.indexOf(obj) + 1;
if (idx < l.size()) {
if (Util.moveElementByIndex(getEditingDomain(), (MUIElement) obj, getEditor().isLiveModel(), idx, targetFeature)) {
viewer.setSelection(new StructuredSelection(obj));
}
}
}
}
}
});
final ComboViewer childrenDropDown = new ComboViewer(buttonComp);
childrenDropDown.getControl().setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false));
childrenDropDown.setContentProvider(new ArrayContentProvider());
childrenDropDown.setLabelProvider(new LabelProvider() {
@Override
public String getText(Object element) {
EClass eclass = (EClass) element;
return eclass.getName();
}
});
childrenDropDown.setInput(new EClass[] { BasicPackageImpl.Literals.TRIMMED_WINDOW, BasicPackageImpl.Literals.WINDOW });
childrenDropDown.setSelection(new StructuredSelection(BasicPackageImpl.Literals.TRIMMED_WINDOW));
b = new Button(buttonComp, SWT.PUSH | SWT.FLAT);
b.setImage(createImage(ResourceProvider.IMG_Obj16_table_add));
b.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, false, false));
b.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
EClass eClass = (EClass) ((IStructuredSelection) childrenDropDown.getSelection()).getFirstElement();
handleAdd(eClass);
}
});
b = new Button(buttonComp, SWT.PUSH | SWT.FLAT);
b.setText(Messages.ModelTooling_Common_Remove);
b.setImage(createImage(ResourceProvider.IMG_Obj16_table_delete));
b.setLayoutData(new GridData(GridData.FILL, GridData.CENTER, true, false, 2, 1));
b.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
if (!viewer.getSelection().isEmpty()) {
List<?> windows = ((IStructuredSelection) viewer.getSelection()).toList();
MElementContainer<?> container = (MElementContainer<?>) getMaster().getValue();
Command cmd = RemoveCommand.create(getEditingDomain(), container, targetFeature, windows);
if (cmd.canExecute()) {
getEditingDomain().getCommandStack().execute(cmd);
if (container.getChildren().size() > 0) {
viewer.setSelection(new StructuredSelection(container.getChildren().get(0)));
}
}
}
}
});
folder.setSelection(0);
return folder;
}
@Override
public IObservableList getChildList(Object element) {
return null;
}
@Override
public List<Action> getActions(Object element) {
ArrayList<Action> l = new ArrayList<Action>(super.getActions(element));
l.addAll(actions);
return l;
}
protected void handleAdd(EClass eClass) {
EObject handler = EcoreUtil.create(eClass);
setElementId(handler);
Command cmd = AddCommand.create(getEditingDomain(), getMaster().getValue(), targetFeature, handler);
if (cmd.canExecute()) {
getEditingDomain().getCommandStack().execute(cmd);
getEditor().setSelection(handler);
}
}
}
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