/*
@(#) $Id: WidgetLayout.java,v 1.6 2000-03-14 16:56:49 dglo Exp $
VisAD Utility Library: Widgets for use in building applications with
the VisAD interactive analysis and visualization library
Copyright (C) 2017 Nick Rasmussen
VisAD is Copyright (C) 1996 - 2017 Bill Hibbard, Curtis Rueden, Tom
Rink and Dave Glowacki.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 1, or (at your option)
any later version.
This program 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 in file NOTICE for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
package visad.util;
import java.awt.AWTError;
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.LayoutManager;
/**
* A simple layout manager for use in the visad ColorWidget. Stacks the first two
* components vertically, and stretches them to fit the panel.
*
* @author Nick Rasmussen nick@cae.wisc.edu
* @version $Revision: 1.6 $, $Date: 2000-03-14 16:56:49 $
* @since Visad Utility Library, 0.5
*/
public class WidgetLayout implements LayoutManager
{
/** The container that this layout manager is responsible for */
private Container container;
/** The current preferred X size of the container */
private int preferredX;
/** The current preferred Y size of the container */
private int preferredY;
/** The minimum layout size X component */
private int minX;
/** The minimum layout size Y component */
private int minY;
/** The maximum layout size X component */
private int maxX;
/** The maximum layout size Y component */
private int maxY;
/** Component widths (all windows) */
private int width;
/** Component0 height */
private int height0;
/** Component1 height */
private int height1;
/** Make a new WidgetLayout for the specified ColorWidget */
public WidgetLayout(ColorWidget colorWidget) {
container = colorWidget;
calcDimensions();
}
/** Not used, no effect */
public void addLayoutComponent(String name, Component component) {
}
/** Not used, no effect */
public void removeLayoutComponent(Component component) {
}
/** Lay out the container */
public void layoutContainer(Container parent) {
if (parent != container) {
throw new AWTError("WidgetLayout: got layoutContainer() with incorrect parent");
}
calcDimensions();
int i = container.getComponentCount();
switch (i) {
case 0:
break;
case 2:
container.getComponent(1).setBounds(container.getInsets().left,
(int) Math.min((long) height0 + container.getInsets().top, Integer.MAX_VALUE),
width, height1);
//fall through
case 1:
container.getComponent(0).setBounds(container.getInsets().left,
container.getInsets().top, width, height0);
break;
}
return;
}
/** Return the minimum size for this layout */
public Dimension minimumLayoutSize(Container parent) {
if (parent != container) {
throw new AWTError("WidgetLayout: got layoutContainer() with incorrect parent");
}
calcDimensions();
return new Dimension(minX, minY);
}
/** Return the preferred size for this layout */
public Dimension preferredLayoutSize(Container parent) {
if (parent != container) {
throw new AWTError("WidgetLayout: got layoutContainer() with incorrect parent");
}
calcDimensions();
return new Dimension(preferredX, preferredY);
}
/** Return the maximum size for this layout */
public Dimension maximumLayoutSize(Container parent) {
if (parent != container) {
throw new AWTError("WidgetLayout: got layoutContainer() with incorrect parent");
}
calcDimensions();
return new Dimension(maxX, maxY);
}
/** Calculate the desired and required dimensions of all the components in this container */
private void calcDimensions() {
int i = container.getComponentCount();
switch (i) {
case 0:
minX = 0;
minY = 0;
maxX = 0;
maxY = 0;
preferredX = 0;
preferredY = 0;
break;
case 1:
Component c = container.getComponent(0);
minX = (int)Math.min((long)c.getMinimumSize().width + container.getInsets().right +
container.getInsets().left, (long) Integer.MAX_VALUE);
minY = (int)Math.min((long)c.getMinimumSize().height + container.getInsets().top +
container.getInsets().bottom, (long) Integer.MAX_VALUE);
minX = (int)Math.min((long)c.getMaximumSize().width + container.getInsets().right +
container.getInsets().left, (long) Integer.MAX_VALUE);
minY = (int)Math.min((long)c.getMaximumSize().height + container.getInsets().top +
container.getInsets().bottom, (long) Integer.MAX_VALUE);
preferredX = (int)Math.min((long)c.getPreferredSize().width + container.getInsets().right +
container.getInsets().left, (long) Integer.MAX_VALUE);
preferredY = (int)Math.min((long)c.getPreferredSize().height + container.getInsets().top +
container.getInsets().bottom, (long) Integer.MAX_VALUE);
width = container.getBounds().width;
height0 = container.getBounds().height;
height1 = 0;
break;
default:
Component c0 = container.getComponent(0);
Component c1 = container.getComponent(1);
minX = (int)Math.min((long)c0.getMinimumSize().width + c1.getMinimumSize().width +
container.getInsets().right + container.getInsets().left, (long) Integer.MAX_VALUE);
minY = (int)Math.min((long)c0.getMinimumSize().height + c1.getMinimumSize().height +
container.getInsets().top + container.getInsets().bottom, (long) Integer.MAX_VALUE);
minX = (int)Math.min((long)c0.getMaximumSize().width + c1.getMaximumSize().width +
container.getInsets().right + container.getInsets().left, (long) Integer.MAX_VALUE);
minY = (int)Math.min((long)c0.getMaximumSize().height + c1.getMaximumSize().height +
container.getInsets().top + container.getInsets().bottom, (long) Integer.MAX_VALUE);
preferredX = (int)Math.min((long)c0.getPreferredSize().width + c1.getPreferredSize().width +
container.getInsets().right + container.getInsets().left, (long) Integer.MAX_VALUE);
preferredY = (int)Math.min((long)c0.getPreferredSize().height + c1.getPreferredSize().height +
container.getInsets().top + container.getInsets().bottom, (long) Integer.MAX_VALUE);
width = container.getBounds().width;
height1 = Math.min(container.getBounds().height, c1.getPreferredSize().height);
height0 = container.getBounds().height - height1;
break;
}
return;
}
}