/*
* Copyright (C) 2015 by Array Systems Computing Inc. http://www.array.ca
*
* 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 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 org.esa.snap.worldwind;
import gov.nasa.worldwind.WorldWindow;
import gov.nasa.worldwind.layers.Layer;
import javax.swing.*;
import javax.swing.border.CompoundBorder;
import javax.swing.border.TitledBorder;
import java.awt.*;
import java.awt.event.ActionEvent;
class LayerPanel extends JPanel {
private JPanel layersPanel;
private JPanel westPanel;
private JScrollPane scrollPane;
private Font defaultFont;
public LayerPanel(WorldWindow wwd) {
// Make a panel at a default size.
super(new BorderLayout());
this.makePanel(wwd, new Dimension(100, 400));
}
public LayerPanel(WorldWindow wwd, Dimension size) {
// Make a panel at a specified size.
super(new BorderLayout());
this.makePanel(wwd, size);
}
private void makePanel(WorldWindow wwd, Dimension size) {
// Make and fill the panel holding the layer titles.
this.layersPanel = new JPanel(new GridLayout(0, 1, 0, 4));
this.layersPanel.setBorder(BorderFactory.createEmptyBorder(5, 5, 5, 5));
this.fill(wwd);
// Must put the layer grid in a container to prevent scroll panel from stretching their vertical spacing.
final JPanel dummyPanel = new JPanel(new BorderLayout());
dummyPanel.add(this.layersPanel, BorderLayout.NORTH);
// Put the name panel in a scroll bar.
this.scrollPane = new JScrollPane(dummyPanel);
this.scrollPane.setBorder(BorderFactory.createEmptyBorder(0, 0, 0, 0));
if (size != null)
this.scrollPane.setPreferredSize(size);
// Add the scroll bar and name panel to a titled panel that will resize with the main window.
westPanel = new JPanel(new GridLayout(0, 1, 0, 10));
westPanel.setBorder(
new CompoundBorder(BorderFactory.createEmptyBorder(9, 9, 9, 9), new TitledBorder("Layers")));
westPanel.setToolTipText("Layers to Show");
westPanel.add(scrollPane);
this.add(westPanel, BorderLayout.CENTER);
}
private void fill(WorldWindow wwd) {
// Fill the layers panel with the titles of all layers in the world window's current model.
for (Layer layer : wwd.getModel().getLayers()) {
if (layer.getName().equalsIgnoreCase("Atmosphere") || layer.getName().equalsIgnoreCase("World Map") ||
layer.getName().equalsIgnoreCase("Scale bar") || layer.getName().equalsIgnoreCase("Compass"))
continue;
final LayerAction action = new LayerAction(layer, wwd, layer.isEnabled());
final JCheckBox jcb = new JCheckBox(action);
jcb.setSelected(action.selected);
this.layersPanel.add(jcb);
if (defaultFont == null) {
this.defaultFont = jcb.getFont();
}
}
}
public void update(WorldWindow wwd) {
// Replace all the layer names in the layers panel with the names of the current layers.
this.layersPanel.removeAll();
this.fill(wwd);
this.westPanel.revalidate();
this.westPanel.repaint();
}
@Override
public void setToolTipText(String string) {
this.scrollPane.setToolTipText(string);
}
private static class LayerAction extends AbstractAction {
final WorldWindow wwd;
private final Layer layer;
private final boolean selected;
public LayerAction(Layer layer, WorldWindow wwd, boolean selected) {
super(layer.getName());
this.wwd = wwd;
this.layer = layer;
this.selected = selected;
this.layer.setEnabled(this.selected);
}
public void actionPerformed(ActionEvent actionEvent) {
// Simply enable or disable the layer based on its toggle button.
if (((JCheckBox) actionEvent.getSource()).isSelected())
this.layer.setEnabled(true);
else
this.layer.setEnabled(false);
wwd.redraw();
}
}
}