1 /* 2 * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.javafx.scene.control.behavior; 27 28 import javafx.scene.Node; 29 import javafx.scene.control.FocusModel; 30 import javafx.scene.control.MultipleSelectionModel; 31 import javafx.scene.control.TreeCell; 32 import javafx.scene.control.TreeItem; 33 import javafx.scene.control.TreeView; 34 import javafx.scene.input.MouseButton; 35 36 public class TreeCellBehavior<T> extends CellBehaviorBase<TreeCell<T>> { 37 38 /*************************************************************************** 39 * * 40 * Constructors * 41 * * 42 **************************************************************************/ 43 44 public TreeCellBehavior(final TreeCell<T> control) { 45 super(control); 46 } 47 48 49 50 /*************************************************************************** 51 * * 52 * Private implementation * 53 * * 54 **************************************************************************/ 55 56 @Override 57 protected MultipleSelectionModel<TreeItem<T>> getSelectionModel() { 58 return getCellContainer().getSelectionModel(); 59 } 60 61 @Override 62 protected FocusModel<TreeItem<T>> getFocusModel() { 63 return getCellContainer().getFocusModel(); 64 } 65 66 @Override 67 protected TreeView<T> getCellContainer() { 68 return getNode().getTreeView(); 69 } 70 71 @Override 72 protected void edit(TreeCell<T> cell) { 73 TreeItem<T> treeItem = cell == null ? null : cell.getTreeItem(); 74 getCellContainer().edit(treeItem); 75 } 76 77 @Override 78 protected void handleClicks(MouseButton button, int clickCount, boolean isAlreadySelected) { 79 // handle editing, which only occurs with the primary mouse button 80 TreeItem<T> treeItem = getNode().getTreeItem(); 81 if (button == MouseButton.PRIMARY) { 82 if (clickCount == 1 && isAlreadySelected) { 83 edit(getNode()); 84 } else if (clickCount == 1) { 85 // cancel editing 86 edit(null); 87 } else if (clickCount == 2 && treeItem.isLeaf()) { 88 // attempt to edit 89 edit(getNode()); 90 } else if (clickCount % 2 == 0) { 91 // try to expand/collapse branch tree item 92 treeItem.setExpanded(! treeItem.isExpanded()); 93 } 94 } 95 } 96 97 @Override protected boolean handleDisclosureNode(double x, double y) { 98 TreeCell<T> treeCell = getNode(); 99 Node disclosureNode = treeCell.getDisclosureNode(); 100 if (disclosureNode != null) { 101 if (disclosureNode.getBoundsInParent().contains(x, y)) { 102 if (treeCell.getTreeItem() != null) { 103 treeCell.getTreeItem().setExpanded(! treeCell.getTreeItem().isExpanded()); 104 } 105 return true; 106 } 107 } 108 return false; 109 } 110 }