J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2001 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package javax.swing.colorchooser; |
| 27 | |
| 28 | import javax.swing.*; |
| 29 | import java.awt.*; |
| 30 | import java.awt.event.*; |
| 31 | import javax.swing.event.*; |
| 32 | import javax.swing.text.*; |
| 33 | import java.io.Serializable; |
| 34 | |
| 35 | |
| 36 | /** |
| 37 | * A better GridLayout class |
| 38 | * |
| 39 | * @author Steve Wilson |
| 40 | */ |
| 41 | class SmartGridLayout implements LayoutManager, Serializable { |
| 42 | |
| 43 | int rows = 2; |
| 44 | int columns = 2; |
| 45 | int xGap = 2; |
| 46 | int yGap = 2; |
| 47 | int componentCount = 0; |
| 48 | Component[][] layoutGrid; |
| 49 | |
| 50 | |
| 51 | public SmartGridLayout(int numColumns, int numRows) { |
| 52 | rows = numRows; |
| 53 | columns = numColumns; |
| 54 | layoutGrid = new Component[numColumns][numRows]; |
| 55 | |
| 56 | } |
| 57 | |
| 58 | |
| 59 | public void layoutContainer(Container c) { |
| 60 | |
| 61 | buildLayoutGrid(c); |
| 62 | |
| 63 | int[] rowHeights = new int[rows]; |
| 64 | int[] columnWidths = new int[columns]; |
| 65 | |
| 66 | for (int row = 0; row < rows; row++) { |
| 67 | rowHeights[row] = computeRowHeight(row); |
| 68 | } |
| 69 | |
| 70 | for (int column = 0; column < columns; column++) { |
| 71 | columnWidths[column] = computeColumnWidth(column); |
| 72 | } |
| 73 | |
| 74 | |
| 75 | Insets insets = c.getInsets(); |
| 76 | |
| 77 | if (c.getComponentOrientation().isLeftToRight()) { |
| 78 | int horizLoc = insets.left; |
| 79 | for (int column = 0; column < columns; column++) { |
| 80 | int vertLoc = insets.top; |
| 81 | |
| 82 | for (int row = 0; row < rows; row++) { |
| 83 | Component current = layoutGrid[column][row]; |
| 84 | |
| 85 | current.setBounds(horizLoc, vertLoc, columnWidths[column], rowHeights[row]); |
| 86 | // System.out.println(current.getBounds()); |
| 87 | vertLoc += (rowHeights[row] + yGap); |
| 88 | } |
| 89 | horizLoc += (columnWidths[column] + xGap ); |
| 90 | } |
| 91 | } else { |
| 92 | int horizLoc = c.getWidth() - insets.right; |
| 93 | for (int column = 0; column < columns; column++) { |
| 94 | int vertLoc = insets.top; |
| 95 | horizLoc -= columnWidths[column]; |
| 96 | |
| 97 | for (int row = 0; row < rows; row++) { |
| 98 | Component current = layoutGrid[column][row]; |
| 99 | |
| 100 | current.setBounds(horizLoc, vertLoc, columnWidths[column], rowHeights[row]); |
| 101 | // System.out.println(current.getBounds()); |
| 102 | vertLoc += (rowHeights[row] + yGap); |
| 103 | } |
| 104 | horizLoc -= xGap; |
| 105 | } |
| 106 | } |
| 107 | |
| 108 | |
| 109 | |
| 110 | } |
| 111 | |
| 112 | public Dimension minimumLayoutSize(Container c) { |
| 113 | |
| 114 | buildLayoutGrid(c); |
| 115 | Insets insets = c.getInsets(); |
| 116 | |
| 117 | |
| 118 | |
| 119 | int height = 0; |
| 120 | int width = 0; |
| 121 | |
| 122 | for (int row = 0; row < rows; row++) { |
| 123 | height += computeRowHeight(row); |
| 124 | } |
| 125 | |
| 126 | for (int column = 0; column < columns; column++) { |
| 127 | width += computeColumnWidth(column); |
| 128 | } |
| 129 | |
| 130 | height += (yGap * (rows - 1)) + insets.top + insets.bottom; |
| 131 | width += (xGap * (columns - 1)) + insets.right + insets.left; |
| 132 | |
| 133 | return new Dimension(width, height); |
| 134 | |
| 135 | |
| 136 | } |
| 137 | |
| 138 | public Dimension preferredLayoutSize(Container c) { |
| 139 | return minimumLayoutSize(c); |
| 140 | } |
| 141 | |
| 142 | |
| 143 | public void addLayoutComponent(String s, Component c) {} |
| 144 | |
| 145 | public void removeLayoutComponent(Component c) {} |
| 146 | |
| 147 | |
| 148 | private void buildLayoutGrid(Container c) { |
| 149 | |
| 150 | Component[] children = c.getComponents(); |
| 151 | |
| 152 | for (int componentCount = 0; componentCount < children.length; componentCount++) { |
| 153 | // System.out.println("Children: " +componentCount); |
| 154 | int row = 0; |
| 155 | int column = 0; |
| 156 | |
| 157 | if (componentCount != 0) { |
| 158 | column = componentCount % columns; |
| 159 | row = (componentCount - column) / columns; |
| 160 | } |
| 161 | |
| 162 | // System.out.println("inserting into: "+ column + " " + row); |
| 163 | |
| 164 | layoutGrid[column][row] = children[componentCount]; |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | private int computeColumnWidth(int columnNum) { |
| 169 | int maxWidth = 1; |
| 170 | for (int row = 0; row < rows; row++) { |
| 171 | int width = layoutGrid[columnNum][row].getPreferredSize().width; |
| 172 | if (width > maxWidth) { |
| 173 | maxWidth = width; |
| 174 | } |
| 175 | } |
| 176 | return maxWidth; |
| 177 | } |
| 178 | |
| 179 | private int computeRowHeight(int rowNum) { |
| 180 | int maxHeight = 1; |
| 181 | for (int column = 0; column < columns; column++) { |
| 182 | int height = layoutGrid[column][rowNum].getPreferredSize().height; |
| 183 | if (height > maxHeight) { |
| 184 | maxHeight = height; |
| 185 | } |
| 186 | } |
| 187 | return maxHeight; |
| 188 | } |
| 189 | |
| 190 | } |