/*
* Freeplane - mind map editor
* Copyright (C) 2009 Dimitry
*
* This file author is Dimitry
*
* 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.filepreview;
/**
* @author Dimitry Polivaev
* 22.08.2009
*/
import java.awt.Component;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.LayoutManager;
import javax.swing.SwingUtilities;
import org.freeplane.view.swing.map.MapView;
public class ViewerLayoutManager implements LayoutManager {
private float zoom;
/**
*
*/
public ViewerLayoutManager(final float zoom) {
super();
this.zoom = zoom;
}
public void addLayoutComponent(final String name, final Component comp) {
}
public void layoutContainer(final Container parent) {
if (!parent.isPreferredSizeSet()) {
throw new IllegalStateException("preferred size not set for " + parent);
}
final Dimension preferredSize = parent.getPreferredSize();
final MapView mapView = (MapView) SwingUtilities.getAncestorOfClass(MapView.class, parent);
if (mapView == null) {
return;
}
final float newZoom = mapView.getZoom();
if (zoom != newZoom) {
final float ratio = newZoom / zoom;
preferredSize.width = (int) (Math.rint(preferredSize.width * ratio));
preferredSize.height = (int) (Math.rint(preferredSize.height * ratio));
parent.setPreferredSize(preferredSize);
zoom = newZoom;
}
}
public Dimension minimumLayoutSize(final Container parent) {
return new Dimension(0, 0);
}
public Dimension preferredLayoutSize(final Container parent) {
return parent.getPreferredSize();
}
public void removeLayoutComponent(final Component comp) {
}
}