001    /*
002     * $Id: NearCastTrajControl.java,v 1.6 2012/02/19 17:35:38 davep Exp $
003     *
004     * This file is part of McIDAS-V
005     *
006     * Copyright 2007-2012
007     * Space Science and Engineering Center (SSEC)
008     * University of Wisconsin - Madison
009     * 1225 W. Dayton Street, Madison, WI 53706, USA
010     * https://www.ssec.wisc.edu/mcidas
011     * 
012     * All Rights Reserved
013     * 
014     * McIDAS-V is built on Unidata's IDV and SSEC's VisAD libraries, and
015     * some McIDAS-V source code is based on IDV and VisAD source code.  
016     * 
017     * McIDAS-V is free software; you can redistribute it and/or modify
018     * it under the terms of the GNU Lesser Public License as published by
019     * the Free Software Foundation; either version 3 of the License, or
020     * (at your option) any later version.
021     * 
022     * McIDAS-V is distributed in the hope that it will be useful,
023     * but WITHOUT ANY WARRANTY; without even the implied warranty of
024     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
025     * GNU Lesser Public License for more details.
026     * 
027     * You should have received a copy of the GNU Lesser Public License
028     * along with this program.  If not, see http://www.gnu.org/licenses.
029     */
030    package edu.wisc.ssec.mcidasv.control;
031    
032    import ucar.unidata.data.DataChoice;
033    import ucar.unidata.data.DataDataChoice;
034    import ucar.unidata.data.DirectDataChoice;
035    import ucar.unidata.data.DataSelection;
036    import ucar.unidata.data.DataCategory;
037    
038    import ucar.unidata.data.grid.GridUtil;
039    
040    import ucar.unidata.idv.DisplayConventions;
041    import ucar.unidata.idv.IntegratedDataViewer;
042    import ucar.unidata.idv.control.DisplayControlImpl;
043    import ucar.unidata.idv.DisplayControl;
044    
045    import ucar.visad.display.DisplayMaster;
046    import ucar.visad.display.DisplayableData;
047    import ucar.visad.display.Displayable;
048    import ucar.visad.display.LineDrawing;
049    import ucar.visad.display.RGBDisplayable;
050    
051    import edu.wisc.ssec.mcidasv.data.hydra.HydraRGBDisplayable;
052    import edu.wisc.ssec.mcidasv.data.NearCastTrajDataSource;
053    
054    import visad.*;
055    import visad.BaseColorControl;
056    import visad.VisADException;
057    import visad.RemoteVisADException;
058    import visad.ScalarMapListener;
059    import visad.ScalarMapControlEvent;
060    import visad.ScalarMapEvent;
061    import visad.ReferenceException;
062    import visad.georef.MapProjection;
063    import visad.georef.TrivialMapProjection;
064    
065    
066    import ucar.unidata.idv.ViewManager;
067    import ucar.unidata.idv.ViewDescriptor;
068    
069    import ucar.unidata.util.ColorTable;
070    import ucar.unidata.util.Range;
071    import ucar.unidata.util.Misc;
072    import ucar.unidata.util.GuiUtils;
073    
074    import ucar.unidata.util.LogUtil;
075    
076    import java.awt.Component;
077    import java.awt.Container;
078    import java.awt.FlowLayout;
079    import java.awt.BorderLayout;
080    import java.awt.GridLayout;
081    import java.awt.event.*;
082    import java.awt.geom.Rectangle2D;
083    
084    
085    import javax.swing.*;
086    import javax.swing.event.*;
087    
088    
089    import java.util.HashMap;
090    import java.util.Hashtable;
091    import java.util.Enumeration;
092    import java.util.Iterator;
093    import java.util.List;
094    
095    import java.awt.Color;
096    import java.awt.Font;
097    
098    
099    import java.rmi.RemoteException;
100    
101    
102    public class NearCastTrajControl extends DisplayControlImpl {
103    
104       /** Displayable for the data */
105       LineDrawing trajDisplay;
106    
107       private DisplayMaster displayMaster;
108    
109       FieldImpl trajField = null;
110    
111       RealType rgbRealType = null;
112       String paramName = null;
113    
114       NearCastTrajDataSource dataSource;
115    
116       private DisplayableData rgbDisp;
117    
118       float lineWidth = 1.0f;
119    
120    
121       public NearCastTrajControl() {
122         super();
123         setAttributeFlags(FLAG_COLORTABLE | FLAG_LINEWIDTH);
124       }
125    
126       public boolean init(DataChoice dataChoice) throws VisADException, RemoteException {
127         displayMaster = getViewManager().getMaster();
128         dataSource = (NearCastTrajDataSource) ((DirectDataChoice) dataChoice).getDataSource();
129    
130         DataSelection dataSelection = getDataSelection();
131         trajField = (FieldImpl) dataChoice.getData(dataSelection);
132    
133         FlatField fltFld = null;
134         if (GridUtil.isSequence(trajField)) {
135           FieldImpl fld = (FieldImpl) trajField.getSample(0);
136           if (GridUtil.isSequence(fld)) {
137             fltFld = (FlatField)  fld.getSample(0);
138           }
139         }
140         else {
141           fltFld = (FlatField) trajField;
142         }
143         rgbRealType = (RealType) ((FunctionType)fltFld.getType()).getRange();
144         paramName = rgbRealType.getName();
145    
146         rgbDisp = new RGBDisplayableImpl("traj", rgbRealType, null, true);
147         rgbDisp.setData(trajField);
148    
149         addDisplayable(rgbDisp, FLAG_COLORTABLE);
150    
151         return true;
152       }
153    
154       public void initDone() {
155       }
156    
157       protected void applyLineWidth() throws VisADException, RemoteException {
158         float lw = getLineWidth();
159         if (lw != lineWidth) {
160           rgbDisp.setLineWidth(lw);
161           lineWidth = lw;
162         }
163       }
164    
165       protected Range getInitialRange() throws VisADException, RemoteException {
166         //Range rng = getDisplayConventions().getParamRange(paramName, null);
167         Range rng = null;
168         if (rng == null) {
169           return dataSource.getParamRange();
170         }
171         return rng;
172       }
173    
174       /**
175       protected ColorTable getInitialColorTable() {
176         return getDisplayConventions().getParamColorTable("image");
177       }
178       */
179    
180       private class RGBDisplayableImpl extends RGBDisplayable {
181           RGBDisplayableImpl(String name, RealType rgbRealType, float[][] colorPalette, boolean alphaflag)
182               throws VisADException, RemoteException {
183             super(name, rgbRealType, colorPalette, alphaflag);
184           }
185        }
186    
187        @Override public MapProjection getDataProjection() {
188            MapProjection mp = null;
189            Range lonRange = dataSource.getLonRange();
190            Range latRange = dataSource.getLatRange();
191            float delLon = (float) (lonRange.getMax() - lonRange.getMin());
192            float delLat = (float) (latRange.getMax() - latRange.getMin());
193    
194            try {
195               mp = new TrivialMapProjection(RealTupleType.SpatialEarth2DTuple, 
196                       new Rectangle2D.Float((float)lonRange.getMin(), (float)latRange.getMin(), 
197                                             delLon, delLat));
198            } catch (Exception e) {
199                logException("MultiSpectralControl.getDataProjection", e);
200            }
201    
202            return mp;
203        }
204    
205    
206    }