/* * Copyright (c) 1998, 2003, 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.plaf.basic;import java.awt.*;import java.io.*;/** * Center-positioning layout manager. * @author Tom Santos * @author Steve Wilson */class CenterLayout implements LayoutManager, Serializable { public void addLayoutComponent(String name, Component comp) { } public void removeLayoutComponent(Component comp) { } public Dimension preferredLayoutSize( Container container ) { Component c = container.getComponent( 0 ); if ( c != null ) { Dimension size = c.getPreferredSize(); Insets insets = container.getInsets(); return new Dimension(size.width + insets.left + insets.right, size.height + insets.top + insets.bottom); } else { return new Dimension( 0, 0 ); } } public Dimension minimumLayoutSize(Container cont) { return preferredLayoutSize(cont); } public void layoutContainer(Container container) { if (container.getComponentCount() > 0) { Component c = container.getComponent(0); Dimension pref = c.getPreferredSize(); int containerWidth = container.getWidth(); int containerHeight = container.getHeight(); Insets containerInsets = container.getInsets(); containerWidth -= containerInsets.left + containerInsets.right; containerHeight -= containerInsets.top + containerInsets.bottom; int left = (containerWidth - pref.width) / 2 + containerInsets.left; int right = (containerHeight - pref.height) / 2 + containerInsets.top; c.setBounds(left, right, pref.width, pref.height); } }}
/*
* Copyright (c) 1998, 2003, 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.plaf.basic;
import java.awt.*;
import java.io.*;
/**
* Center-positioning layout manager.
* @author Tom Santos
* @author Steve Wilson
*/
class CenterLayout implements LayoutManager, Serializable {
public void addLayoutComponent(String name, Component comp) { }
public void removeLayoutComponent(Component comp) { }
public Dimension preferredLayoutSize( Container container ) {
Component c = container.getComponent( 0 );
if ( c != null ) {
Dimension size = c.getPreferredSize();
Insets insets = container.getInsets();
return new Dimension(size.width + insets.left + insets.right,
size.height + insets.top + insets.bottom);
}
else {
return new Dimension( 0, 0 );
}
}
public Dimension minimumLayoutSize(Container cont) {
return preferredLayoutSize(cont);
}
public void layoutContainer(Container container) {
if (container.getComponentCount() > 0) {
Component c = container.getComponent(0);
Dimension pref = c.getPreferredSize();
int containerWidth = container.getWidth();
int containerHeight = container.getHeight();
Insets containerInsets = container.getInsets();
containerWidth -= containerInsets.left +
containerInsets.right;
containerHeight -= containerInsets.top +
containerInsets.bottom;
int left = (containerWidth - pref.width) / 2 +
containerInsets.left;
int right = (containerHeight - pref.height) / 2 +
containerInsets.top;
c.setBounds(left, right, pref.width, pref.height);
}
}
}