| /**
|
| * Copyright (c) 2012, 2019 Mia-Software.
|
| *
|
| * All rights reserved. This program and the accompanying materials
|
| * are made available under the terms of the Eclipse Public License v2.0
|
| * which accompanies this distribution, and is available at
|
| * http://www.eclipse.org/legal/epl-v20.html
|
| *
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| * Contributors:
|
| * Alban Ménager (Soft-Maint) - Bug 387470 - [EFacet][Custom] Editors
|
| */ |
| package org.eclipse.modisco.facet.util.ui.internal.exported.util.tree;
|
|
|
| import java.util.List;
|
| import java.util.Map;
|
|
|
| import org.eclipse.modisco.facet.util.ui.internal.exported.dialog.IDialog;
|
| import org.eclipse.modisco.facet.util.ui.internal.exported.util.tree.item.AbstractTreeItem;
|
| import org.eclipse.modisco.facet.util.ui.internal.exported.util.tree.menu.AbstractTreeMenu;
|
| import org.eclipse.modisco.facet.util.ui.internal.exported.util.tree.menu.ExtendedTreeMenu;
|
| import org.eclipse.swt.SWT;
|
| import org.eclipse.swt.events.KeyEvent;
|
| import org.eclipse.swt.events.KeyListener;
|
| import org.eclipse.swt.events.MouseEvent;
|
| import org.eclipse.swt.events.MouseListener;
|
| import org.eclipse.swt.layout.GridData;
|
| import org.eclipse.swt.widgets.Composite;
|
| import org.eclipse.swt.widgets.Listener;
|
| import org.eclipse.swt.widgets.Tree;
|
|
|
| /**
|
| * This class provides the creation of a {@link Tree} but with extended
|
| * elements.</p>
|
| *
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| * This tree creates its menu {@link ExtendedTreeMenu} and had the list of all the items
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| * of the tree accessible with the method {@link #getTreeItems()}.
|
| *
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| * </p> Only one element of the tree can be selected at the same time.
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| *
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| * @since 0.3
|
| */
|
| public class ExtendedTree {
|
|
|
| private static final int TREE_HEIGHT = 250;
|
| private final Tree tree;
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| private final ExtendedTreeMenu<IDialog> treeMenu;
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| private Listener listener;
|
|
|
| /**
|
| * Constructor.
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| *
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| * Create a new instance of a {@link Tree} and create the {@link ExtendedTreeMenu}
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| * with the <code>menuItems</code> in parameter.
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| *
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| * @param parent
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| * the parent of the TreeExtended.
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| * @param menuItems
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| * the items of the menu.
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| *
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| * @see ExtendedTreeMenu
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| * @see AbstractTreeMenu
|
| */
|
| public ExtendedTree(final Composite parent,
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| final List<AbstractTreeMenu<IDialog>> menuItems) {
|
|
|
| // SWT.SINGLE -> a unique selection on the tree possible
|
| this.tree = new Tree(parent, SWT.SINGLE | SWT.NONE);
|
| final GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
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| gridData.heightHint = TREE_HEIGHT;
|
| this.tree.setLayoutData(gridData);
|
| this.tree.addMouseListener(new MouseListener() {
|
|
|
| public void mouseUp(final MouseEvent mouseEvent) {
|
| // Nothing.
|
| }
|
|
|
| public void mouseDown(final MouseEvent mouseEvent) {
|
| // Nothing.
|
| }
|
|
|
| public void mouseDoubleClick(final MouseEvent mouseEvent) {
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| onMouseDoubleClick();
|
| }
|
| });
|
| this.tree.addKeyListener(new KeyListener() {
|
|
|
| public void keyReleased(final KeyEvent event) {
|
| // Nothing.
|
| }
|
|
|
| public void keyPressed(final KeyEvent event) {
|
| onKeyPressed(event);
|
| }
|
| });
|
| this.treeMenu = new ExtendedTreeMenu<IDialog>(parent, this, menuItems);
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| this.getTreeMenu().createMenu();
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| this.tree.setMenu(this.getTreeMenu().getMenu());
|
| }
|
|
|
| /**
|
| * This method is called when a key is pressed on the tree.
|
| */
|
| protected void onKeyPressed(final KeyEvent event) {
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| if (event.keyCode == SWT.DEL) {
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| this.getTreeMenu().removeCurrentItemSelected();
|
| }
|
| }
|
|
|
| /**
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| * When the mouse does a double click on an element of the tree.
|
| */
|
| protected void onMouseDoubleClick() {
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| if (getTree().getSelection().length > 0) {
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| // new Tree(parent, SWT.SINGLE | SWT.NONE) -> the tree can only had
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| // one selection at the same time.
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| this.getTreeMenu().onMouseSelection();
|
| }
|
| }
|
|
|
| /**
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| * @return the {@link Tree} created by this class.
|
| */
|
| public Tree getTree() {
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| return this.tree;
|
| }
|
|
|
| /**
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| * Add a {@link ModificationListener} to the list of listeners of the tree.
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| *
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| * @param listener
|
| */
|
| public void setListener(final Listener listener) {
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| this.listener = listener;
|
| }
|
|
|
| /**
|
| * When a modification appends, this method has to be called and the method
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| * {@link #notifyChanged()} is called for the listener of this Tree.
|
| */
|
| public void fireChanged() {
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| this.listener.handleEvent(null);
|
| }
|
|
|
| /**
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| * @return a map of properties to pass to the {@link AbstractTreeItem}. Each
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| * items add to override the method
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| * {@link AbstractTreeItem#getExtraProperties(Map)} to get this
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| * properties.
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| */
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| public void putExtraPropertiesToItems(final Map<String, Object> properties) {
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| this.getTreeMenu().putExtraProperties(properties);
|
| }
|
|
|
| /**
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| * Return the first {@link AbstractTreeItem} of the tree.
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| *
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| * @return the first item of the tree.
|
| */
|
| public AbstractTreeItem<IDialog> getFirstTreeItem() {
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| AbstractTreeItem<IDialog> result = null;
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| if (this.tree.getItemCount() > 0) {
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| result = this.getTreeMenu().getTreeItemExtended(this.tree.getItem(0));
|
| }
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| return result;
|
| }
|
|
|
| /**
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| * @return the treeMenu of this tree.
|
| */
|
| public ExtendedTreeMenu<IDialog> getTreeMenu() {
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| return this.treeMenu;
|
| }
|
|
|
| }
|