pathnamepanel.java

来自「FuncPlotter is a combined Java applicati」· Java 代码 · 共 155 行

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

PathnamePanel.java

Pathname panel 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.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;

import java.awt.event.ActionListener;

import javax.swing.Action;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JPanel;

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


// PATHNAME PANEL CLASS


public class PathnamePanel
    extends JPanel
{

////////////////////////////////////////////////////////////////////////
//  Constants
////////////////////////////////////////////////////////////////////////

    private static final    Insets  BROWSE_BUTTON_MARGINS   = new Insets( 2, 4, 2, 4 );

    private static final    String  BROWSE_STR  = "Browse";

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

    public PathnamePanel( JComponent pathnameField,
                          Action     action )
    {
        this( pathnameField, new FButton( action ) );
    }

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

    public PathnamePanel( JComponent     pathnameField,
                          String         command,
                          ActionListener actionListener )
    {
        this( pathnameField, createBrowseButton( command, actionListener ) );
    }

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

    public PathnamePanel( JComponent pathnameField,
                          JButton    browseButton )
    {

        // Set layout manager

        GridBagLayout gridBag = new GridBagLayout( );
        GridBagConstraints gbc = new GridBagConstraints( );

        setLayout( gridBag );

        int gridX = 0;

        // Pathname field

        gbc.gridx = gridX++;
        gbc.gridy = 0;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.0;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.LINE_START;
        gbc.fill = GridBagConstraints.NONE;
        gbc.insets = new Insets( 0, 0, 0, 0 );
        gridBag.setConstraints( pathnameField, gbc );
        add( pathnameField );

        // Browse button

        browseButton.setMargin( BROWSE_BUTTON_MARGINS );

        gbc.gridx = gridX++;
        gbc.gridy = 0;
        gbc.gridwidth = 1;
        gbc.gridheight = 1;
        gbc.weightx = 0.0;
        gbc.weighty = 0.0;
        gbc.anchor = GridBagConstraints.LINE_START;
        gbc.fill = GridBagConstraints.NONE;
        gbc.insets = new Insets( 0, 6, 0, 0 );
        gridBag.setConstraints( browseButton, gbc );
        add( browseButton );

    }

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

////////////////////////////////////////////////////////////////////////
//  Class methods
////////////////////////////////////////////////////////////////////////

    private static JButton createBrowseButton( String         command,
                                               ActionListener actionListener )
    {
        JButton button = new FButton( BROWSE_STR + Constants.ELLIPSIS_STR );
        button.setActionCommand( command );
        button.addActionListener( actionListener );
        return button;
    }

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

}

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