1 /* 2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. 3 * All rights reserved. Use is subject to license terms. 4 * 5 * This file is available and licensed under the following license: 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * - Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * - Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the distribution. 16 * - Neither the name of Oracle Corporation nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package com.oracle.javafx.scenebuilder.kit.util; 34 35 /** 36 * 37 */ 38 public class GridBounds { 39 40 private final int minColumnIndex; 41 private final int minRowIndex; 42 private final int columnSpan; 43 private final int rowSpan; 44 45 public GridBounds(int columnIndex, int rowIndex, int columnSpan, int rowSpan) { 46 assert (columnSpan >= 0); 47 assert (rowSpan >= 0); 48 this.minColumnIndex = columnIndex; 49 this.minRowIndex = rowIndex; 50 this.columnSpan = columnSpan; 51 this.rowSpan = rowSpan; 52 } 53 54 public int getMinColumnIndex() { 55 return minColumnIndex; 56 } 57 58 public int getMinRowIndex() { 59 return minRowIndex; 60 } 61 62 public int getColumnSpan() { 63 return columnSpan; 64 } 65 66 public int getRowSpan() { 67 return rowSpan; 68 } 69 70 public int getMaxColumnIndex() { 71 return minColumnIndex + columnSpan; 72 } 73 74 public int getMaxRowIndex() { 75 return minRowIndex + rowSpan; 76 } 77 78 public boolean isEmpty() { 79 return (columnSpan == 0) || (rowSpan == 0); 80 } 81 82 public GridBounds move(int columnDelta, int rowDelta) { 83 final int newColumnIndex = minColumnIndex + columnDelta; 84 final int newRowIndex = minRowIndex + rowDelta; 85 return new GridBounds(newColumnIndex, newRowIndex, columnSpan, rowSpan); 86 } 87 88 public GridBounds union(GridBounds gridBounds) { 89 final int newMinColumnIndex = Math.min(minColumnIndex, gridBounds.minColumnIndex); 90 final int newMinRowIndex = Math.min(minRowIndex, gridBounds.minRowIndex); 91 final int newMaxColumnIndex = Math.max(getMaxColumnIndex(), gridBounds.getMaxColumnIndex()); 92 final int newMaxRowIndex = Math.max(getMaxRowIndex(), gridBounds.getMaxRowIndex()); 93 final int newColumnSpan = newMaxColumnIndex - newMinColumnIndex; 94 final int newRowSpan = newMaxRowIndex - newMinRowIndex; 95 return new GridBounds(newMinColumnIndex, newMinRowIndex, newColumnSpan, newRowSpan); 96 } 97 }