/**
* Prepares the graphics for the layer. This is where the getRectangle() method call is made on
* the dted.
*
* <p>Occasionally it is necessary to abort a prepare call. When this happens, the map will set
* the cancel bit in the LayerThread, (the thread that is running the prepare). If this Layer
* needs to do any cleanups during the abort, it should do so, but return out of the prepare asap.
*/
public synchronized OMGraphicList prepare() {
if (isCancelled()) {
Debug.message("dted", getName() + "|DTEDLayer.prepare(): aborted.");
return null;
}
Projection projection = getProjection();
if (projection == null) {
Debug.error("DTED Layer needs to be added to the MapBean before it can draw images!");
return new OMGraphicList();
}
DTEDCacheManager cache = getCache();
if (!(projection instanceof EqualArc)) {
// fireRequestInfoLine("DTED works faster with an Equal Arc projection (CADRG/LLXY).");
}
Debug.message("basic", getName() + "|DTEDLayer.prepare(): doing it");
// Setting the OMGraphicsList for this layer. Remember, the
// OMGraphicList is made up of OMGraphics, which are generated
// (projected) when the graphics are added to the list. So,
// after this call, the list is ready for painting.
// call getRectangle();
if (Debug.debugging("dted")) {
Debug.output(
getName()
+ "|DTEDLayer.prepare(): "
+ "calling getRectangle "
+ " with projection: "
+ projection
+ " ul = "
+ projection.getUpperLeft()
+ " lr = "
+ projection.getLowerRight());
}
OMGraphicList omGraphicList;
if (projection.getScale() < maxScale) {
omGraphicList = cache.getRectangle(projection);
} else {
fireRequestInfoLine(" The scale is too small for DTED viewing.");
Debug.error(
"DTEDLayer: scale (1:"
+ projection.getScale()
+ ") is smaller than minimum (1:"
+ maxScale
+ ") allowed.");
omGraphicList = new OMGraphicList();
}
// ///////////////////
// safe quit
int size = 0;
if (omGraphicList != null) {
size = omGraphicList.size();
Debug.message(
"basic", getName() + "|DTEDLayer.prepare(): finished with " + size + " graphics");
// // Don't forget to project them. Since they are only
// // being recalled if the projection has changed, then we
// // need to force a reprojection of all of them because the
// // screen position has changed.
// omGraphicList.project(projection, true);
} else {
Debug.message("basic", getName() + "|DTEDLayer.prepare(): finished with null graphics list");
}
return omGraphicList;
}
/** Create the query to be sent to the server, based on current settings. */
public String createQueryString(Projection p) {
if (queryHeader == null) {
return null;
}
String bbox = "undefined";
String height = "undefined";
String width = "undefined";
String sCoordParamName = WMTConstants.SRS;
if (p != null) {
Point2D ul = p.getUpperLeft();
Point2D lr = p.getLowerRight();
if (wmsVersion.compareTo("1.3.0") == 0) {
bbox =
Double.toString(lr.getY())
+ ","
+ Double.toString(ul.getX())
+ ","
+ Double.toString(ul.getY())
+ ","
+ Double.toString(lr.getX());
sCoordParamName = WMTConstants.CRS;
errorHandling = "INIMAGE";
} else {
bbox =
Double.toString(ul.getX())
+ ","
+ Double.toString(lr.getY())
+ ","
+ Double.toString(lr.getX())
+ ","
+ Double.toString(ul.getY());
}
height = Integer.toString(p.getHeight());
width = Integer.toString(p.getWidth());
}
StringBuffer buf = new StringBuffer(queryHeader);
buf.append("?")
.append(WMTConstants.VERSION)
.append("=")
.append(wmsVersion)
.append("&")
.append(WMTConstants.REQUEST)
.append("=")
.append(mapRequestName)
.append("&")
.append(sCoordParamName)
.append("=")
.append("EPSG:4326")
.append("&")
.append(WMTConstants.BBOX)
.append("=")
.append(bbox)
.append("&")
.append(WMTConstants.HEIGHT)
.append("=")
.append(height)
.append("&")
.append(WMTConstants.WIDTH)
.append("=")
.append(width)
.append("&")
.append(WMTConstants.EXCEPTIONS)
.append("=")
.append(errorHandling);
if (imageFormat != null) {
buf.append("&").append(WMTConstants.FORMAT).append("=").append(imageFormat);
String baseImageFormat = imageFormat;
if (baseImageFormat.indexOf('/') > 0)
baseImageFormat = baseImageFormat.substring(baseImageFormat.indexOf('/'));
if (baseImageFormat.equals(WMTConstants.IMAGEFORMAT_JPEG)) {
buf.append("&quality=").append(imageQuality);
}
}
if (transparent != null) {
buf.append("&").append(WMTConstants.TRANSPARENT).append("=").append(transparent);
}
if (backgroundColor != null) {
buf.append("&").append(WMTConstants.BGCOLOR).append("=").append(backgroundColor);
}
if (layers != null) {
buf.append("&").append(WMTConstants.LAYERS).append("=").append(layers);
}
String cStyles = styles;
if (cStyles == null) {
cStyles = "";
}
// if (styles != null) {
buf.append("&").append(WMTConstants.STYLES).append("=").append(cStyles);
// }
if (Debug.debugging("wms")) {
Debug.output("query string: " + buf);
}
/*
* Included to allow for one or more vendor specific parameters to be
* specified such as ESRI's ArcIMS's "ServiceName" parameter.
*/
if (vendorSpecificNames != null) {
if (vendorSpecificValues != null) {
StringTokenizer nameTokenizer = new StringTokenizer(vendorSpecificNames, ",");
StringTokenizer valueTokenizer = new StringTokenizer(vendorSpecificValues, ",");
String paramName = null;
String paramValue = null;
while (nameTokenizer.hasMoreTokens()) {
try {
paramName = nameTokenizer.nextToken();
paramValue = valueTokenizer.nextToken();
buf.append("&").append(paramName).append("=").append(paramValue);
} catch (NoSuchElementException e) {
if (Debug.debugging("wms")) {
Debug.output(
"WMSPlugIn.getRectangle(): " + "parameter \"" + paramName + "\" has no value");
}
}
}
}
}
return buf.toString();
}
public void actionPerformed(ActionEvent ae) {
Debug.message("saveimage", "SaveAsImageMenuItem: actionPerformed");
if (mapHandler == null) {
Debug.output("SaveAsImageMenuItem: mapHandler = null, returning");
return;
}
MapBean mb = (MapBean) mapHandler.get("com.bbn.openmap.MapBean");
if (mb != null) {
Debug.message("saveimage", "MapBean found, creating image");
try {
while (true) {
SaveAsImageFileChooser chooser =
new SaveAsImageFileChooser(mb.getWidth(), mb.getHeight());
int returnVal = chooser.showSaveDialog(getParent());
if (returnVal == JFileChooser.APPROVE_OPTION) {
String filename = chooser.getSelectedFile().getAbsolutePath();
if (formatter == null) {
break;
}
filename = checkFileName(filename, formatter.getFormatLabel().toLowerCase());
if (filename == null) {
// This is the reason for the while
// loop, the name didn't really pass
// muster, so we'll try again.
continue;
}
int imageHeight = chooser.getImageHeight();
int imageWidth = chooser.getImageWidth();
byte[] imageBytes = formatter.getImageFromMapBean(mb, imageWidth, imageHeight);
FileOutputStream binFile = new FileOutputStream(filename);
binFile.write(imageBytes);
binFile.close();
if (Debug.debugging("saveimage")) {
com.bbn.openmap.proj.Projection proj = mb.getProjection();
Debug.output(
"Created image at "
+ filename
+ "where projection covers "
+ proj.getUpperLeft()
+ " to "
+ proj.getLowerRight());
}
break;
} else if (returnVal == JFileChooser.CANCEL_OPTION) {
break;
}
}
} catch (IOException e) {
Debug.error("SaveAsImageMenuItem: " + e);
}
}
return;
}
