+++ /dev/null
-package javaapplication1;
-/*
- * Copyright (c) 1995 - 2008 Sun Microsystems, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- *
- * - Neither the name of Sun Microsystems nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
- * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-import javax.swing.*;
-import javax.swing.SpringLayout;
-import java.awt.*;
-
-/**
- * A 1.4 file that provides utility methods for
- * creating form- or grid-style layouts with SpringLayout.
- * These utilities are used by several programs, such as
- * SpringBox and SpringCompactGrid.
- */
-public class SpringUtilities {
- /**
- * A debugging utility that prints to stdout the component's
- * minimum, preferred, and maximum sizes.
- */
- public static void printSizes(Component c) {
- System.out.println("minimumSize = " + c.getMinimumSize());
- System.out.println("preferredSize = " + c.getPreferredSize());
- System.out.println("maximumSize = " + c.getMaximumSize());
- }
-
- /**
- * Aligns the first <code>rows</code> * <code>cols</code>
- * components of <code>parent</code> in
- * a grid. Each component is as big as the maximum
- * preferred width and height of the components.
- * The parent is made just big enough to fit them all.
- *
- * @param rows number of rows
- * @param cols number of columns
- * @param initialX x location to start the grid at
- * @param initialY y location to start the grid at
- * @param xPad x padding between cells
- * @param yPad y padding between cells
- */
- public static void makeGrid(Container parent,
- int rows, int cols,
- int initialX, int initialY,
- int xPad, int yPad) {
- SpringLayout layout;
- try {
- layout = (SpringLayout)parent.getLayout();
- } catch (ClassCastException exc) {
- System.err.println("The first argument to makeGrid must use SpringLayout.");
- return;
- }
-
- Spring xPadSpring = Spring.constant(xPad);
- Spring yPadSpring = Spring.constant(yPad);
- Spring initialXSpring = Spring.constant(initialX);
- Spring initialYSpring = Spring.constant(initialY);
- int max = rows * cols;
-
- //Calculate Springs that are the max of the width/height so that all
- //cells have the same size.
- Spring maxWidthSpring = layout.getConstraints(parent.getComponent(0)).
- getWidth();
- Spring maxHeightSpring = layout.getConstraints(parent.getComponent(0)).
- getWidth();
- for (int i = 1; i < max; i++) {
- SpringLayout.Constraints cons = layout.getConstraints(
- parent.getComponent(i));
-
- maxWidthSpring = Spring.max(maxWidthSpring, cons.getWidth());
- maxHeightSpring = Spring.max(maxHeightSpring, cons.getHeight());
- }
-
- //Apply the new width/height Spring. This forces all the
- //components to have the same size.
- for (int i = 0; i < max; i++) {
- SpringLayout.Constraints cons = layout.getConstraints(
- parent.getComponent(i));
-
- cons.setWidth(maxWidthSpring);
- cons.setHeight(maxHeightSpring);
- }
-
- //Then adjust the x/y constraints of all the cells so that they
- //are aligned in a grid.
- SpringLayout.Constraints lastCons = null;
- SpringLayout.Constraints lastRowCons = null;
- for (int i = 0; i < max; i++) {
- SpringLayout.Constraints cons = layout.getConstraints(
- parent.getComponent(i));
- if (i % cols == 0) { //start of new row
- lastRowCons = lastCons;
- cons.setX(initialXSpring);
- } else { //x position depends on previous component
- cons.setX(Spring.sum(lastCons.getConstraint(SpringLayout.EAST),
- xPadSpring));
- }
-
- if (i / cols == 0) { //first row
- cons.setY(initialYSpring);
- } else { //y position depends on previous row
- cons.setY(Spring.sum(lastRowCons.getConstraint(SpringLayout.SOUTH),
- yPadSpring));
- }
- lastCons = cons;
- }
-
- //Set the parent's size.
- SpringLayout.Constraints pCons = layout.getConstraints(parent);
- pCons.setConstraint(SpringLayout.SOUTH,
- Spring.sum(
- Spring.constant(yPad),
- lastCons.getConstraint(SpringLayout.SOUTH)));
- pCons.setConstraint(SpringLayout.EAST,
- Spring.sum(
- Spring.constant(xPad),
- lastCons.getConstraint(SpringLayout.EAST)));
- }
-
- /* Used by makeCompactGrid. */
- private static SpringLayout.Constraints getConstraintsForCell(
- int row, int col,
- Container parent,
- int cols) {
- SpringLayout layout = (SpringLayout) parent.getLayout();
- Component c = parent.getComponent(row * cols + col);
- return layout.getConstraints(c);
- }
-
- /**
- * Aligns the first <code>rows</code> * <code>cols</code>
- * components of <code>parent</code> in
- * a grid. Each component in a column is as wide as the maximum
- * preferred width of the components in that column;
- * height is similarly determined for each row.
- * The parent is made just big enough to fit them all.
- *
- * @param rows number of rows
- * @param cols number of columns
- * @param initialX x location to start the grid at
- * @param initialY y location to start the grid at
- * @param xPad x padding between cells
- * @param yPad y padding between cells
- */
- public static void makeCompactGrid(Container parent,
- int rows, int cols,
- int initialX, int initialY,
- int xPad, int yPad) {
- SpringLayout layout;
- try {
- layout = (SpringLayout)parent.getLayout();
- } catch (ClassCastException exc) {
- System.err.println("The first argument to makeCompactGrid must use SpringLayout.");
- return;
- }
-
- //Align all cells in each column and make them the same width.
- Spring x = Spring.constant(initialX);
- for (int c = 0; c < cols; c++) {
- Spring width = Spring.constant(0);
- for (int r = 0; r < rows; r++) {
- width = Spring.max(width,
- getConstraintsForCell(r, c, parent, cols).
- getWidth());
- }
- for (int r = 0; r < rows; r++) {
- SpringLayout.Constraints constraints =
- getConstraintsForCell(r, c, parent, cols);
- constraints.setX(x);
- constraints.setWidth(width);
- }
- x = Spring.sum(x, Spring.sum(width, Spring.constant(xPad)));
- }
-
- //Align all cells in each row and make them the same height.
- Spring y = Spring.constant(initialY);
- for (int r = 0; r < rows; r++) {
- Spring height = Spring.constant(0);
- for (int c = 0; c < cols; c++) {
- height = Spring.max(height,
- getConstraintsForCell(r, c, parent, cols).
- getHeight());
- }
- for (int c = 0; c < cols; c++) {
- SpringLayout.Constraints constraints =
- getConstraintsForCell(r, c, parent, cols);
- constraints.setY(y);
- constraints.setHeight(height);
- }
- y = Spring.sum(y, Spring.sum(height, Spring.constant(yPad)));
- }
-
- //Set the parent's size.
- SpringLayout.Constraints pCons = layout.getConstraints(parent);
- pCons.setConstraint(SpringLayout.SOUTH, y);
- pCons.setConstraint(SpringLayout.EAST, x);
- }
-}
git://git.onelab.eu / sfa.git / blobdiff