| /* |
| * Copyright (c) 1998, 2001, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package javax.swing.colorchooser; |
| |
| import javax.swing.*; |
| import java.awt.*; |
| import java.awt.event.*; |
| import javax.swing.event.*; |
| import javax.swing.text.*; |
| import java.io.Serializable; |
| |
| |
| /** |
| * A better GridLayout class |
| * |
| * @author Steve Wilson |
| */ |
| class SmartGridLayout implements LayoutManager, Serializable { |
| |
| int rows = 2; |
| int columns = 2; |
| int xGap = 2; |
| int yGap = 2; |
| int componentCount = 0; |
| Component[][] layoutGrid; |
| |
| |
| public SmartGridLayout(int numColumns, int numRows) { |
| rows = numRows; |
| columns = numColumns; |
| layoutGrid = new Component[numColumns][numRows]; |
| |
| } |
| |
| |
| public void layoutContainer(Container c) { |
| |
| buildLayoutGrid(c); |
| |
| int[] rowHeights = new int[rows]; |
| int[] columnWidths = new int[columns]; |
| |
| for (int row = 0; row < rows; row++) { |
| rowHeights[row] = computeRowHeight(row); |
| } |
| |
| for (int column = 0; column < columns; column++) { |
| columnWidths[column] = computeColumnWidth(column); |
| } |
| |
| |
| Insets insets = c.getInsets(); |
| |
| if (c.getComponentOrientation().isLeftToRight()) { |
| int horizLoc = insets.left; |
| for (int column = 0; column < columns; column++) { |
| int vertLoc = insets.top; |
| |
| for (int row = 0; row < rows; row++) { |
| Component current = layoutGrid[column][row]; |
| |
| current.setBounds(horizLoc, vertLoc, columnWidths[column], rowHeights[row]); |
| // System.out.println(current.getBounds()); |
| vertLoc += (rowHeights[row] + yGap); |
| } |
| horizLoc += (columnWidths[column] + xGap ); |
| } |
| } else { |
| int horizLoc = c.getWidth() - insets.right; |
| for (int column = 0; column < columns; column++) { |
| int vertLoc = insets.top; |
| horizLoc -= columnWidths[column]; |
| |
| for (int row = 0; row < rows; row++) { |
| Component current = layoutGrid[column][row]; |
| |
| current.setBounds(horizLoc, vertLoc, columnWidths[column], rowHeights[row]); |
| // System.out.println(current.getBounds()); |
| vertLoc += (rowHeights[row] + yGap); |
| } |
| horizLoc -= xGap; |
| } |
| } |
| |
| |
| |
| } |
| |
| public Dimension minimumLayoutSize(Container c) { |
| |
| buildLayoutGrid(c); |
| Insets insets = c.getInsets(); |
| |
| |
| |
| int height = 0; |
| int width = 0; |
| |
| for (int row = 0; row < rows; row++) { |
| height += computeRowHeight(row); |
| } |
| |
| for (int column = 0; column < columns; column++) { |
| width += computeColumnWidth(column); |
| } |
| |
| height += (yGap * (rows - 1)) + insets.top + insets.bottom; |
| width += (xGap * (columns - 1)) + insets.right + insets.left; |
| |
| return new Dimension(width, height); |
| |
| |
| } |
| |
| public Dimension preferredLayoutSize(Container c) { |
| return minimumLayoutSize(c); |
| } |
| |
| |
| public void addLayoutComponent(String s, Component c) {} |
| |
| public void removeLayoutComponent(Component c) {} |
| |
| |
| private void buildLayoutGrid(Container c) { |
| |
| Component[] children = c.getComponents(); |
| |
| for (int componentCount = 0; componentCount < children.length; componentCount++) { |
| // System.out.println("Children: " +componentCount); |
| int row = 0; |
| int column = 0; |
| |
| if (componentCount != 0) { |
| column = componentCount % columns; |
| row = (componentCount - column) / columns; |
| } |
| |
| // System.out.println("inserting into: "+ column + " " + row); |
| |
| layoutGrid[column][row] = children[componentCount]; |
| } |
| } |
| |
| private int computeColumnWidth(int columnNum) { |
| int maxWidth = 1; |
| for (int row = 0; row < rows; row++) { |
| int width = layoutGrid[columnNum][row].getPreferredSize().width; |
| if (width > maxWidth) { |
| maxWidth = width; |
| } |
| } |
| return maxWidth; |
| } |
| |
| private int computeRowHeight(int rowNum) { |
| int maxHeight = 1; |
| for (int column = 0; column < columns; column++) { |
| int height = layoutGrid[column][rowNum].getPreferredSize().height; |
| if (height > maxHeight) { |
| maxHeight = height; |
| } |
| } |
| return maxHeight; |
| } |
| |
| } |