org.jgraph.pad.actions.ViewFit Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of freak-core Show documentation
Core library of the Free Evolutionary Algorithm Toolkit
There is a newer version: 0.4.7
/*
 * @(#)ViewFit.java	1.2 02.02.2003
 *
 * Copyright (C) 2003 sven.luzar
 *
 * This program 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 */
package org.jgraph.pad.actions;

import org.jgraph.GPGraphpad;

import java.awt.*;
import java.awt.event.ActionEvent;

/**
 * 
 * @author sven.luzar
 * @version 1.0
 *
 */
public class ViewFit extends AbstractActionRadioButton {

	public static final String NONE = "None";
	public static final String WINDOW = "Window";
	public static final String PAGE_WIDTH = "PageWidth";
	public static final String PAGE = "Page";

	/**
	 * Constructor for ViewFit.
	 * @param graphpad
	 */
	public ViewFit(GPGraphpad graphpad) {
		super(graphpad);
		lastActionCommand = NONE;
	}


	/**
	 * @see java.awt.event.ActionListener#actionPerformed(ActionEvent)
	 */
	public void actionPerformed(ActionEvent e) {
		lastActionCommand = e.getActionCommand() ;
		
		if (NONE.equals(e.getActionCommand())) {
			getCurrentDocument().setResizeAction(null);
			getCurrentGraph().setScale(1);
		} else if (WINDOW.equals(e.getActionCommand())) {
			Rectangle p = getCurrentGraph().getCellBounds(getCurrentGraph().getRoots());
			if (p != null) {
				Dimension s =
					getCurrentDocument().getScrollPane().getViewport().getExtentSize();
				double scale = 1;
				if (Math.abs(s.getWidth() - (p.x + p.getWidth()))
					> Math.abs(s.getHeight() - (p.x + p.getHeight())))
					scale = (double) s.getWidth() / (p.x + p.getWidth());
				else
					scale = (double) s.getHeight() / (p.y + p.getHeight());
				scale = Math.max(Math.min(scale, 16), .01);
				getCurrentGraph().setScale(scale);
				getCurrentDocument().setResizeAction(this);
			}
		} else if (PAGE.equals(e.getActionCommand())) {
			Dimension p = getCurrentGraph().getMinimumSize();
			if (p != null && (p.getWidth() != 0 || p.getHeight() != 0)) {
				Dimension s =
					getCurrentDocument().getScrollPane().getViewport().getExtentSize();
				double scale = 1;
				if ((double) s.getWidth() / (double) p.getWidth()
					< (double) s.getHeight() / (double) p.getHeight())
					scale = (double) s.getWidth() / (double) p.getWidth();
				else
					scale = (double) s.getHeight() / (double) p.getHeight();
				scale = Math.max(Math.min(scale, 16), .01);
				getCurrentGraph().setScale(scale);
				getCurrentDocument().setResizeAction(this);
				getCurrentDocument().repaint();
			}
		} else if (PAGE_WIDTH.equals(e.getActionCommand())) {
			Dimension p = getCurrentGraph().getMinimumSize();
			if (p != null && (p.getWidth() != 0 || p.getHeight() != 0)) {
				Dimension s =
					getCurrentDocument().getScrollPane().getViewport().getExtentSize();
				s.width = s.width - 20;
				double scale = (double) s.getWidth() / (double) p.getWidth();
				scale = Math.max(Math.min(scale, 16), .01);
				getCurrentGraph().setScale(scale);
				getCurrentDocument().setResizeAction(this);
			}
		}
		
		update();
	}

	/**
	 * @see AbstractActionRadioButton#getPossibleActionCommands()
	 */
	public String[] getPossibleActionCommands() {
		return new String[] { NONE, WINDOW, PAGE_WIDTH, PAGE };
	}

}