/*
* Copyright 2004-2006 Sun Microsystems, Inc. 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. Sun designates this
* particular file as subject to the "Classpath" exception as provided
* by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
* CA 95054 USA or visit www.sun.com if you need additional information or
* have any questions.
*/
package sun.tools.jconsole;
import java.awt.*;
import java.util.*;
import javax.swing.*;
@SuppressWarnings("serial")
public class VariableGridLayout extends GridLayout {
private boolean fillRows, fillColumns;
public VariableGridLayout(int rows, int cols,
int hgap, int vgap,
boolean fillRows, boolean fillColumns) {
super(rows, cols, hgap, vgap);
this.fillRows = fillRows;
this.fillColumns = fillColumns;
}
public void setFillRow(JComponent c, boolean b) {
c.putClientProperty("VariableGridLayout.fillRow", b);
}
public void setFillColumn(JComponent c, boolean b) {
c.putClientProperty("VariableGridLayout.fillColumn", b);
}
public boolean getFillRow(JComponent c) {
Boolean b = (Boolean)c.getClientProperty("VariableGridLayout.fillRow");
return (b != null) ? b : fillRows;
}
public boolean getFillColumn(JComponent c) {
Boolean b = (Boolean)c.getClientProperty("VariableGridLayout.fillColumn");
return (b != null) ? b : fillColumns;
}
public void layoutContainer(Container parent) {
Insets insets = parent.getInsets();
int ncomponents = parent.getComponentCount();
int nrows = getRows();
int ncols = getColumns();
int hgap = getHgap();
int vgap = getVgap();
if (nrows > 0) {
ncols = (ncomponents + nrows - 1) / nrows;
} else {
nrows = (ncomponents + ncols - 1) / ncols;
}
// Set heights
int x;
int y;
int nFills = 0;
boolean[] fills = new boolean[nrows];
int lastFillRow = -1;
int nComps = parent.getComponentCount();
y = insets.top;
for (int row = 0; row < nrows; row++) {
// Find largest minimum height for this row
int h = 0;
for (int col = 0; col < ncols; col++) {
if (row * ncols + col < nComps) {
Component c = parent.getComponent(row * ncols + col);
h = Math.max(h, c.getMinimumSize().height);
}
}
// Set heights for this row
x = insets.left;
for (int col = 0; col < ncols; col++) {
if (row * ncols + col < nComps) {
JComponent c = (JComponent)parent.getComponent(row * ncols + col);
int w = c.getWidth();
c.setBounds(x, y, w, h);
x += w + hgap;
if (col == 0 && getFillRow(c)) {
fills[row] = true;
}
}
}
y += h + vgap;
if (fills[row]) {
nFills++;
lastFillRow = row;
}
}
// Fill heights
if (nFills > 0 && y < parent.getHeight()) {
// How much height to add
int hAdd = (parent.getHeight() - y) / nFills;
int hAdded = 0;
for (int row = 0; row < nrows; row++) {
if (fills[row]) {
if (row == lastFillRow) {
// Compensate for rounding error
hAdd = parent.getHeight() - (y+hAdded);
}
for (int col = 0; col < ncols; col++) {
if (row * ncols + col < nComps) {
Component c = parent.getComponent(row * ncols + col);
Rectangle b = c.getBounds();
c.setBounds(b.x, b.y + hAdded, b.width, b.height + hAdd);
}
}
hAdded += hAdd;
}
}
}
// Set widths
nFills = 0;
fills = new boolean[ncols];
int lastFillCol = -1;
x = insets.left;
for (int col = 0; col < ncols; col++) {
// Find largest minimum width for this column
int w = 0;
for (int row = 0; row < nrows; row++) {
if (row * ncols + col < nComps) {
Component c = parent.getComponent(row * ncols + col);
w = Math.max(w, c.getMinimumSize().width);
}
}
// Set widths for this column
y = insets.top;
for (int row = 0; row < nrows; row++) {
if (row * ncols + col < nComps) {
JComponent c = (JComponent)parent.getComponent(row * ncols + col);
int h = c.getHeight();
c.setBounds(x, y, w, h);
y += h + vgap;
if (row == 0 && getFillColumn(c)) {
fills[col] = true;
}
}
}
x += w + hgap;
if (fills[col]) {
nFills++;
lastFillCol = col;
}
}
// Fill widths
if (nFills > 0 && x < parent.getWidth()) {
// How much width to add
int wAdd = (parent.getWidth() - x) / nFills;
int wAdded = 0;
for (int col = 0; col < ncols; col++) {
if (fills[col]) {
if (col == lastFillCol) {
wAdd = parent.getWidth() - (x+wAdded);
}
for (int row = 0; row < nrows; row++) {
if (row * ncols + col < nComps) {
Component c = parent.getComponent(row * ncols + col);
Rectangle b = c.getBounds();
c.setBounds(b.x + wAdded, b.y, b.width + wAdd, b.height);
}
}
wAdded += wAdd;
}
}
}
}
public Dimension preferredLayoutSize(Container parent) {
Insets insets = parent.getInsets();
int ncomponents = parent.getComponentCount();
int nrows = getRows();
int ncols = getColumns();
int hgap = getHgap();
int vgap = getVgap();
if (nrows > 0) {
ncols = (ncomponents + nrows - 1) / nrows;
} else {
nrows = (ncomponents + ncols - 1) / ncols;
}
int nComps = parent.getComponentCount();
int y = insets.top;
for (int row = 0; row < nrows; row++) {
int h = 0;
for (int col = 0; col < ncols; col++) {
if (row * ncols + col < nComps) {
Component c = parent.getComponent(row * ncols + col);
h = Math.max(h, c.getMinimumSize().height);
}
}
y += h + vgap;
}
int x = insets.left;
for (int col = 0; col < ncols; col++) {
int w = 0;
for (int row = 0; row < nrows; row++) {
if (row * ncols + col < nComps) {
Component c = parent.getComponent(row * ncols + col);
w = Math.max(w, c.getMinimumSize().width);
}
}
x += w + hgap;
}
return new Dimension(x, y);
}
}