--- old/src/share/classes/sun/awt/VariableGridLayout.java 2011-12-02 17:47:42.986179300 +0400 +++ /dev/null 2011-12-02 17:47:44.000000000 +0400 @@ -1,231 +0,0 @@ -/* - * Copyright (c) 1995, 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 sun.awt; - -import java.awt.*; -import java.util.BitSet; - - -/** - * A layout manager for a container that lays out grids. Allows setting - * the relative sizes of rows and columns. - * - * @author Herb Jellinek - */ - - -public class VariableGridLayout extends GridLayout { - - BitSet rowsSet = new BitSet(); - double rowFractions[] = null; - - BitSet colsSet = new BitSet(); - double colFractions[] = null; - - int rows; - int cols; - int hgap; - int vgap; - - /** - * Creates a grid layout with the specified rows and specified columns. - * @param rows the rows - * @param cols the columns - */ - public VariableGridLayout(int rows, int cols) { - this(rows, cols, 0, 0); - - if (rows != 0) { - rowsSet = new BitSet(rows); - stdRowFractions(rows); - } - - if (cols != 0) { - colsSet = new BitSet(cols); - stdColFractions(cols); - } - } - - /** - * Creates a grid layout with the specified rows, columns, - * horizontal gap, and vertical gap. - * @param rows the rows - * @param cols the columns - * @param hgap the horizontal gap variable - * @param vgap the vertical gap variable - * @exception IllegalArgumentException If the rows and columns are invalid. - */ - public VariableGridLayout(int rows, int cols, int hgap, int vgap) { - super(rows, cols, hgap, vgap); - - this.rows = rows; - this.cols = cols; - this.hgap = hgap; - this.vgap = vgap; - - if (rows != 0) { - rowsSet = new BitSet(rows); - stdRowFractions(rows); - } - - if (cols != 0) { - colsSet = new BitSet(cols); - stdColFractions(cols); - } - } - - void stdRowFractions(int nrows) { - rowFractions = new double[nrows]; - for (int i = 0; i < nrows; i++) { - rowFractions[i] = 1.0 / nrows; - } - } - - void stdColFractions(int ncols) { - colFractions = new double[ncols]; - for (int i = 0; i < ncols; i++) { - colFractions[i] = 1.0 / ncols; - } - } - - public void setRowFraction(int rowNum, double fraction) { - rowsSet.set(rowNum); - rowFractions[rowNum] = fraction; - } - - public void setColFraction(int colNum, double fraction) { - colsSet.set(colNum); - colFractions[colNum] = fraction; - } - - public double getRowFraction(int rowNum) { - return rowFractions[rowNum]; - } - - public double getColFraction(int colNum) { - return colFractions[colNum]; - } - - void allocateExtraSpace(double vec[], BitSet userSet) { - // collect the space that's been explicitly allocated... - double total = 0.0; - int unallocated = 0; - int i; - for (i = 0; i < vec.length; i++) { - if (userSet.get(i)) { - total += vec[i]; - } else { - unallocated++; - } - } - - // ... then spread the extra space - if (unallocated != 0) { - double space = (1.0 - total) / unallocated; - for (i = 0; i < vec.length; i++) { - if (!userSet.get(i)) { - vec[i] = space; - userSet.set(i); - } - } - } - } - - - void allocateExtraSpace() { - allocateExtraSpace(rowFractions, rowsSet); - allocateExtraSpace(colFractions, colsSet); - } - - /** - * Lays out the container in the specified panel. - * @param parent the specified component being laid out - * @see Container - */ - public void layoutContainer(Container parent) { - Insets insets = parent.insets(); - int ncomponents = parent.countComponents(); - int nrows = rows; - int ncols = cols; - - if (nrows > 0) { - ncols = (ncomponents + nrows - 1) / nrows; - } else { - nrows = (ncomponents + ncols - 1) / ncols; - } - - if (rows == 0) { - stdRowFractions(nrows); - } - if (cols == 0) { - stdColFractions(ncols); - } - - Dimension size = parent.size(); - int w = size.width - (insets.left + insets.right); - int h = size.height - (insets.top + insets.bottom); - - w = (w - (ncols - 1) * hgap); - h = (h - (nrows - 1) * vgap); - - allocateExtraSpace(); - - for (int c = 0, x = insets.left ; c < ncols ; c++) { - int colWidth = (int)(getColFraction(c) * w); - for (int r = 0, y = insets.top ; r < nrows ; r++) { - int i = r * ncols + c; - int rowHeight = (int)(getRowFraction(r) * h); - - if (i < ncomponents) { - parent.getComponent(i).reshape(x, y, colWidth, rowHeight); - } - y += rowHeight + vgap; - } - x += colWidth + hgap; - } - } - - static String fracsToString(double array[]) { - String result = "["+array.length+"]"; - - for (int i = 0; i < array.length; i++) { - result += "<"+array[i]+">"; - } - return result; - } - - /** - * Returns the String representation of this VariableGridLayout's values. - */ - public String toString() { - return getClass().getName() + "[hgap=" + hgap + ",vgap=" + vgap + - ",rows=" + rows + ",cols=" + cols + - ",rowFracs=" + - fracsToString(rowFractions) + - ",colFracs=" + - fracsToString(colFractions) + "]"; - } -}