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secondo/Javagui/viewer/hoese/algebras/Dsplintimeregion.java
2026-01-23 17:03:45 +08:00

138 lines
4.3 KiB
Java

//This file is part of SECONDO.
//Copyright (C) 2004, University in Hagen, Department of Computer Science,
//Database Systems for New Applications.
//SECONDO 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.
//SECONDO 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 SECONDO; if not, write to the Free Software
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
package viewer.hoese.algebras;
import java.awt.geom.*;
import java.awt.*;
import viewer.*;
import viewer.hoese.*;
import sj.lang.ListExpr;
import java.util.*;
import javax.swing.*;
import tools.Reporter;
/**
* A displayclass for the intimeregion-type (spatiotemp algebra), 2D with TimePanel
*/
public class Dsplintimeregion extends Dsplregion implements Timed {
Interval TimeBounds;
/** A method of the Timed-Interface
*
* @return the global time boundaries [min..max] this instance is defined at
* @see <a href="Dsplintimeregionsrc.html#getTimebounds">Source</a>
*/
public Interval getBoundingInterval () {
return TimeBounds;
}
/**
* A method of the Timed-Interface to render the content of the TimePanel
* @param PixelTime pixel per hour
* @return A JPanel component with the renderer
* @see <a href="Dsplintimeregionsrc.html#getTimeRenderer">Source</a>
*/
public JPanel getTimeRenderer (double PixelTime) {
int start = 0;
JLabel label = new JLabel("|"+LEUtils.convertTimeToString(TimeBounds.getStart()).substring(11,
16), JLabel.LEFT);
label.setBounds(start, 15, 100, 15);
label.setVerticalTextPosition(JLabel.CENTER);
label.setHorizontalTextPosition(JLabel.RIGHT);
JPanel jp = new JPanel(null);
jp.setPreferredSize(new Dimension(100, 25));
jp.add(label);
//Add labels to the JPanel.
return jp;
}
/**
* Scans the representation of an instant datatype
* @param v An instant value
* @see sj.lang.ListExpr
* @see <a href="Dsplintimeregionsrc.html#ScanValue">Source</a>
*/
public void ScanValue (ListExpr v) {
Double d;
if (v.listLength() != 2) { //perhaps changes later
Reporter.writeError("Error: No correct intimeregion expression: 2 elements needed");
err = true;
return;
}
d = LEUtils.readInstant(v.first());
if (d == null) {
err = true;
return;
}
TimeBounds = new Interval(d.doubleValue(), d.doubleValue(), true, true);
super.ScanValue(v.second());
}
/**
* This instance is only visible at its defined time.
* @param at The actual Transformation, used to calculate the correct size.
* @return Region Shape if ActualTime == defined time
* @see <a href="Dsplintimeregionsrc.html#getRenderObject">Source</a>
*/
public Shape getRenderObject (int num,AffineTransform at) {
double t = RefLayer.getActualTime();
if (Math.abs(t - TimeBounds.getStart()) < 0.000001)
return super.getRenderObject(num,at);
else
return null;
}
/**
* Init. the Dsplintimeregon instance.
* @param type The symbol intimeregion
* @param value The value of an instant and a region
* @param qr queryresult to display output.
* @see generic.QueryResult
* @see sj.lang.ListExpr
* @see <a href="Dsplintimeregionsrc.html#init">Source</a>
*/
public void init (String name, int nameWidth, int indent, ListExpr type, ListExpr value, QueryResult qr) {
AttrName = extendString(name, nameWidth, indent);
ScanValue(value);
if (err) {
Reporter.writeError("Error in ListExpr :parsing aborted");
qr.addEntry(new String("(" + AttrName + ": GTA(IntimeRegion))"));
return;
}
else
qr.addEntry(this);
}
/** A method of the Timed-Interface
* @return The Vector representation of the time intervals this instance is defined at
* @see <a href="Dsplintimeregionsrc.html#getIntervals">Source</a>
*/
public Vector getIntervals(){
Vector v=new Vector(1,0);
v.add(TimeBounds);
return v;
}
}