dashedborder.java

FuncPlotter is a combined Java application and applet for displaying two-dimensional plots of explic

/*====================================================================*\

DashedBorder.java

Dashed border class.

------------------------------------------------------------------------

This file is part of FuncPlotter, a combined Java application and applet
for plotting explicit functions in one variable.
Copyright 2005-2007 Andy Morgan-Richards.

FuncPlotter 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 3 of the License, 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 for more details.

You should have received a copy of the GNU General Public License along
with this program.  If not, see <http://www.gnu.org/licenses/>.

\*====================================================================*/


// PACKAGE


package gui;

//----------------------------------------------------------------------


// IMPORTS


import java.awt.BasicStroke;
import java.awt.Component;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Insets;
import java.awt.Rectangle;

import javax.swing.border.AbstractBorder;

//----------------------------------------------------------------------


// DASHED BORDER CLASS


public class DashedBorder
    extends AbstractBorder
{

////////////////////////////////////////////////////////////////////////
//  Constructors
////////////////////////////////////////////////////////////////////////

    public DashedBorder( float dashLength )
    {
        float[] dash = { dashLength };
        stroke = new BasicStroke( 1.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10.0f, dash, 0.0f );
    }

    //------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////
//  Instance methods : overriding methods
////////////////////////////////////////////////////////////////////////

    public Insets getBorderInsets( Component component )
    {
        return new Insets( 1, 1, 1, 1 );
    }

    //------------------------------------------------------------------

    public Insets getBorderInsets( Component component,
                                   Insets    insets )
    {
        insets.top = insets.left = insets.bottom = insets.right = 1;
        return insets;
    }

    //------------------------------------------------------------------

    public boolean isBorderOpaque( )
    {
        return true;
    }

    //------------------------------------------------------------------

    public void paintBorder( Component component,
                             Graphics  gr,
                             int       x,
                             int       y,
                             int       width,
                             int       height)
    {
        Graphics2D gr2d = (Graphics2D)gr;
        gr2d.setColor( component.getForeground( ) );
        gr2d.setStroke( stroke );
        gr2d.draw( new Rectangle( x, y, width - 1, height - 1 ) );
    }

    //------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////
//  Instance variables
////////////////////////////////////////////////////////////////////////

    private BasicStroke stroke;

}

//----------------------------------------------------------------------