FvCalculator new FvAsWing component

Posted At : November 7, 2006 10:12 AM | Posted By : Romain Ecarnot
Related Categories: announcements

Hi all, a new component has just been added to FvAsWing framework.

The FvCalculator

The FvCalculator is a simple JFrame based component showing a calculator user interface.

As we don't really need many calculators at the same time, implementation model is based on the Design Pattern Singleton one.
So, to get a FvCalculator instance, we need to do :

var calculator : FvCalculator = FvCalculator.getInstance();

A JMenubar is installed to allow user to :

Copy the calculator result to the clipboard
Switch between the classic and the scientific calculator view.

In most case, the "copy to clipboard" is a sufficient way to retreive result, but if you want to really recover the result with the closing of the component, you have to use :

//for example, result is returned to a JTextField
var field : JTextField = new JTextField();

var calculator : FvCalculator = FvCalculator.getInstance();
calculator.connect( AccessorFactory.getInstance( field, field.setText, field.getText ) );
calculator.open();

You can use your Keyboard NumPAD when FvCalculator window has the focus

FvCalculator is connected to the Localisation API to translate correctly all necessaries label.

update flash player

Demo source code :

class Demo implements FeverApplication
{
//-------------------------------------------------------------------------
// Public API
//-------------------------------------------------------------------------

/**
* Constructor.
*/
public function Demo()
{

}

public function run() : Void
{
   var input : JTextField = new JTextField();
   var button : JButton = new JButton( "calculator" );
   button.addActionListener( _open, this );
   button.setPreferredWidth( 100 );

   var o : JFrame = new JFrame( FvAsWingStage.getRootMovieClip(), "", false );
   o.getContentPane().setLayout( new SoftBoxLayout( SoftBoxLayout.Y_AXIS, 5 ) );
   o.getContentPane().setBorder( new EmptyBorder( null, new Insets( 5,5,5,5 ) ) );

   o.getContentPane().append( input );
   o.getContentPane().append( button );
   o.setClosable( false );
   o.setResizable( false );
   o.pack();
   o.show();

   FvCalculator.getInstance().connect(
      AccessorFactory.getInstance( input, input.setText, input.getText )
   );
}

//-------------------------------------------------------------------------
// Private implementation
//-------------------------------------------------------------------------

private function _open( source : JButton ) : Void
{
   FvCalculator.getInstance().open();
}
}

Cheers