/**
* Since the image doesn't necessarily need to be regenerated when it is merely moved, raster
* objects have this function, called from generate() and when a placement attribute is changed.
*
* @return true if enough information is in the object for proper placement.
* @param proj projection of window.
*/
protected boolean position(Projection proj) {
if (proj == null) {
logger.fine("OMRasterObject: null projection in position!");
return false;
}
projWidth = proj.getWidth();
projHeight = proj.getHeight();
switch (renderType) {
case RENDERTYPE_LATLON:
if (!proj.isPlotable(lat, lon)) {
if (DEBUG) {
logger.fine("OMRasterObject: point is not plotable!");
}
setNeedToReposition(true); // so we don't render it!
return false;
}
point1 = (Point) proj.forward(lat, lon, new Point());
break;
case RENDERTYPE_XY:
point1 = new Point(x, y);
break;
case RENDERTYPE_OFFSET:
if (!proj.isPlotable(lat, lon)) {
if (DEBUG) {
logger.fine("OMRasterObject: point is not plotable!");
}
setNeedToReposition(true); // so we don't render it!
return false;
}
point1 = (Point) proj.forward(lat, lon, new Point());
point1.x += x;
point1.y += y;
break;
case RENDERTYPE_UNKNOWN:
if (DEBUG) {
logger.fine("OMRasterObject.position(): ignoring unknown rendertype, wingin' it");
}
if (lat == 0 && lon == 0) {
if (x == 0 && y == 0) {
if (DEBUG) {
logger.fine(
"OMRasterObject.position(): Not enough info in object to place it reasonably.");
}
point1 = new Point(-width, -height);
point2 = new Point(0, 0);
return false;
} else {
point1 = new Point(x, y);
}
} else {
if (!proj.isPlotable(lat, lon)) {
logger.fine("OMRasterObject: point is not plotable!");
return false;
}
point1 = (Point) proj.forward(lat, lon, new Point());
}
break;
}
point2 = new Point(0, 0);
point2.x = point1.x + width;
point2.y = point1.y + height;
setNeedToReposition(false);
return true;
}
