/*
* Freeplane - mind map editor
* Copyright (C) 2008 Joerg Mueller, Daniel Polansky, Christian Foltin, Dimitry Polivaev
*
* 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, see <http://www.gnu.org/licenses/>.
*/
package org.freeplane.view.swing.features;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import javax.swing.JViewport;
import org.freeplane.core.ui.AFreeplaneAction;
import org.freeplane.features.mode.Controller;
import org.freeplane.view.swing.map.MapView;
/**
* @author foltin
* @author Dimitry Polivaev
*/
public class FitToPage extends AFreeplaneAction {
/**
*
*/
private static final long serialVersionUID = 1L;
private MapView view;
/**
*
*/
public FitToPage() {
super("FitToPage");
}
public void actionPerformed(final ActionEvent e) {
view = (MapView) Controller.getCurrentController().getMapViewManager().getMapViewComponent();
if (view == null) {
return;
}
zoom();
EventQueue.invokeLater(new Runnable() {
public void run() {
scroll();
}
});
}
private void scroll() {
final Rectangle rect = view.getInnerBounds();
final Rectangle viewer = view.getVisibleRect();
view.scrollBy(shift(rect.x, rect.width, viewer.x, viewer.width), shift(rect.y, rect.height, viewer.y,
viewer.height));
}
private int shift(final int coord1, final int size1, final int coord2, final int size2) {
return coord1 - coord2 + (size1 - size2) / 2;
}
private void zoom() {
final Rectangle rect = view.getInnerBounds();
final double oldZoom = view.getZoom();
final JViewport viewPort = (JViewport) view.getParent();
final Dimension viewer = viewPort.getExtentSize();
double newZoom = viewer.width * oldZoom / (rect.width + 0.0);
final double heightZoom = viewer.height * oldZoom / (rect.height + 0.0);
if (heightZoom < newZoom) {
newZoom = heightZoom;
}
Controller.getCurrentController().getMapViewManager().setZoom((float) (newZoom));
}
}