Graphical User Interfaces - Java - page 617

return ;
Component [] components = parent . getComponents ();
Dimension contSize = parent . getSize ();
int

return

int x = 0 ;
for for ( int int i = 0 ; i < components . length ; i ++) {

int int row = i / COLUMNS ;

int

int col = i % COLUMNS ;
Component c = components [ i ];
Dimension d = c . getPreferredSize ();
int

int colWidth = ( int int )( contSize . width * widthPercentages [ col ]);

iif ( col == 0 ) {
x = hpad ;
} else else {

x += hpad * ( col - 1 ) +
( int

int )( contSize . width * widthPercentages [ col - 1 ]);

}
int

int y = vpad * ( row ) + ( row * heights [ row ]) + ( heights [ row ]- d . height );
Rectangle r = new new Rectangle ( x , y , colWidth , d . height );

c . setBounds ( r );

}

}

}

See Also

For more on layouts, see Jim Elliott's RelativeLayout , described at On Java . This is not to
be confused with the like-named but much simpler RelativeLayout in the source distribu-
tion accompanying the Java Cookbook ; Jim's is more complete.

The JGoodies Forms package provides a number of useful additions to help build complex
layouts.

MetaWidget provides a facility for mapping Javabean properties to Swing UI, but can also
build Android, HTML, and several other layout types.

As mentioned in the Introduction, there are many good books on windowed application pro-
gramming with Java. O'Reilly's Java Swing discusses the many Swing components not
covered here, such as JTable , JScrollPane , JList , and JTree , and many more. Some
Swing components not covered in this chapter are nontheless used in later recipes in this
book (for example, JTree is discussed in Program: MailClient ) .