/**************************************************************************
* Copyright (c) 2001 by Acunia N.V. All rights reserved. *
* *
* This software is copyrighted by and is the sole property of Acunia N.V. *
* and its licensors, if any. All rights, title, ownership, or other *
* interests in the software remain the property of Acunia N.V. and its *
* licensors, if any. *
* *
* This software may only be used in accordance with the corresponding *
* license agreement. Any unauthorized use, duplication, transmission, *
* distribution or disclosure of this software is expressly forbidden. *
* *
* This Copyright notice may not be removed or modified without prior *
* written consent of Acunia N.V. *
* *
* Acunia N.V. reserves the right to modify this software without notice. *
* *
* Acunia N.V. *
* Vanden Tymplestraat 35 info@acunia.com *
* 3000 Leuven http://www.acunia.com *
* Belgium - EUROPE *
**************************************************************************/
package com.acunia.wonka.test.awt.layout;
import java.awt.Button;
import java.awt.Color;
import java.awt.GridBagConstraints;
import java.awt.List;
import java.awt.Panel;
public class GridBagLayoutOverlay extends GridBagLayoutPositions {
/** Variables*/
//protected List display;
//protected final static Color SMOKE = new Color(64,64,127);
/** constructor */
public GridBagLayoutOverlay() {
setBackground(Color.black);
setForeground(Color.yellow);
setLayout(new java.awt.BorderLayout());
Panel main = new Panel(new java.awt.GridLayout(3,2));
GridBagConstraints ga = new GridBagConstraints();
ga.fill = GridBagConstraints.BOTH;
ga.gridx = 0;
ga.gridy = 0;
ga.gridwidth = 2;
ga.gridheight = 2;
GridBagConstraints gb = new GridBagConstraints();
gb.fill = GridBagConstraints.BOTH;
gb.gridx = 1;
gb.gridy = 1;
gb.gridwidth = 2;
gb.gridheight = 2;
GridBagConstraints gc = new GridBagConstraints();
gc.fill = GridBagConstraints.BOTH;
gc.gridx = 2;
gc.gridy = 0;
gc.gridwidth = 2;
gc.gridheight = 2;
GridBagConstraints gd = new GridBagConstraints();
gd.fill = GridBagConstraints.BOTH;
gd.gridx = 3;
gd.gridy = 1;
gd.gridwidth = 2;
gd.gridheight = 2;
Button a = locationButton("<A>",Color.red,"position(0,0)to(1,1), added first using add()");
Button b = locationButton("<B>",Color.green,"position(1,1)to(2,2), added second using add()");
Button c = locationButton("<C>",Color.blue,"position(2,0)to(3,1)), added third using add()");
Button d = locationButton("<D>",Color.yellow,"position(3,1)to(4,2), added last using add()");
Button title = locationButton("Reference layout add()",Color.black,"Layout built in sequence <A>,<B>,<C>,<D> using add()");
main.add(buildLayout(title,SMOKE, new java.awt.GridBagLayout(), a, ga, b, gb, c, gc, d, gd));
a = locationButton("<A>",Color.red,"position(0,0)to(1,1), added first to last place in list using add(-1)");
b = locationButton("<B>",Color.green,"position(1,1)to(2,2), added second to last place in list using add(-1)");
c = locationButton("<C>",Color.blue,"position(2,0)to(3,1), added third to last place in list using add(-1)");
d = locationButton("<D>",Color.yellow,"position(3,1)to(4,2), added last to last place in list using add()");
title = locationButton("positioned default by add(-1)",Color.black,"Components added in sequence <A>,<B>,<C>,<D> using add(-1)");
main.add(buildLayout(title,RUST, new java.awt.GridBagLayout(),a, ga, -1, b, gb, -1, c, gc, -1, d, gd, -1));
a = locationButton("<A>",Color.red,"position(0,0)to(1,1), added last using add()");
b = locationButton("<B>",Color.green,"position(1,1)to(2,2), added third using add()");
c = locationButton("<C>",Color.blue,"position(2,0)to(3,1), added second using add()");
d = locationButton("<D>",Color.yellow,"position(3,1)to(4,2), added first using add()");
title = locationButton("Inverse layout",Color.black,"Layout built in sequence <D>,<C>,<B>,<A> using add()");
main.add(buildLayout(title,RUST, new java.awt.GridBagLayout(),d, gd, c, gc, b, gb, a, ga));
a = locationButton("<A>",Color.red,"position(0,0)to(1,1), added first using add(0)");
b = locationButton("<B>",Color.green,"position(1,1)to(2,2), added second to first place in list using add(0)");
c = locationButton("<C>",Color.blue,"position(2,0)to(3,1), added third to first place in list using add(0)");
d = locationButton("<D>",Color.yellow,"position(3,1)to(4,2), added fourth to first place in list using add(0)");
title = locationButton("Positioned first by add(0)",Color.black,"Components added in sequence <A>,<B>,<C>,<D> but using add(0) to add to beginning of list");
main.add(buildLayout(title,SMOKE, new java.awt.GridBagLayout(),a, ga, 0, b, gb, 0, c, gc, 0, d, gd, 0));
a = locationButton("<A>",Color.red,"position(0,0)to(1,1), added first using add()");
b = locationButton("<B>",Color.green,"position(1,1)to(2,2), added second using add()");
c = locationButton("<C>",Color.blue,"position(2,0)to(3,1), added fourth using add()");
d = locationButton("<D>",Color.yellow,"position(3,1)to(4,2), added third by add() sequence");
title = locationButton("<A>,<B>,<D>,<C> by adding order",Color.black,"Layout built in sequence <A>,<B>,<D>,<C> using add()");
main.add(buildLayout(title,SMOKE, new java.awt.GridBagLayout(),a, ga, b, gb, d, gd, c, gc));
a = locationButton("<A>",Color.red,"position(0,0)to(1,1), added first to first place in list using add(0)");
b = locationButton("<B>",Color.green,"position(1,1)to(2,2), added second to second place in list using add(1)");
c = locationButton("<C>",Color.blue,"position(2,0)to(3,1), added third to third in list using add(2), later moved up by <D>");
d = locationButton("<D>",Color.yellow,"position(3,1)to(4,2), deliberately added fourth to third place in list using add(2)");
title = locationButton("<D> third by add(2)",Color.black,"Components added in sequence <A>,<B>,<C>,<D> using add(2) to set <D> third in list");
main.add(buildLayout(title,RUST, new java.awt.GridBagLayout(),a, ga, 0, b, gb, 1, c, gc, 2, d, gd, 2));
add(main, java.awt.BorderLayout.CENTER);
display = new List(2,false);
display.setForeground(Color.white);
display.add("Click on an item to get more info");
add(display, java.awt.BorderLayout.SOUTH);
}
public String getHelpText(){
return "A test to verify Rudolph's implementation of the Container.add(Component, GridBagConstraints, position) form in a GridBagLayout\n\n"+
"Offifially it's considered <as good as a programming error> when you let two or more GridBagLayout elements overlap at least partly"+
" However, it is still possible and in this case it is up to the virtual engine to decide what to do.\n"+
"Most often however the engine's GridBagLayout code adopts a policy of <last one sits on top>, so in this case the order"+
" in which the elements are stored internally becomes important.\n"+
"Again, this test shows three rows of two panels. Again to each of them are added our four elements <A>,<B>,<C> and.<D>"+
" at positions of(0,0), (1,1), (2,0) and(3,1) respectingly. This time however all elements are two cells deep and two cells wide"+
" so that each of them overlaaps another one.\n"+
"As in all other position tests, the elements are added in order <A>+<B>+<C>+<D>, order <D>+<C>+<B>+<A> and order <A>+<B>+<D>+<C>"+
"respectingly, the left side by changing the order in which the elements are added to the list (using add(element, constraints))"+
", the right one by specifying the order in the add(element, constraints, order) form"+
"DISCLAIMER: ALTHOUGH IT IS POSSIBLE, OVERLAPPING GRIDS IS N.O.T. ALLOWED BY THE GRIDBAGLAYOUT !!!. THEREFORE THE RESULTS"+
" OF THIS TEST HAVE NO BINDING MEANING WHATSOEVER, EXCEPT THAT THEY SHOW WHAT Y.O.U.R VIRTUAL ENGINE DOES IN THIS CASE";
}
}