/**
* The specified dimensions are used to locate a matching MediaSize instance from amongst all the
* standard MediaSize instances. If there is no exact match, the closest match is used.
*
* <p>The MediaSize is in turn used to locate the MediaSizeName object. This method may return
* null if the closest matching MediaSize has no corresponding Media instance.
*
* <p>This method is useful for clients which have only dimensions and want to find a Media which
* corresponds to the dimensions.
*
* @param x - X dimension
* @param y - Y dimension.
* @param units Unit conversion factor, e.g. <CODE>Size2DSyntax.INCH</CODE> or <CODE>
* Size2DSyntax.MM</CODE>
* @return MediaSizeName matching these dimensions, or null.
* @exception IllegalArgumentException if x <= 0, y <= 0, or units < 1
*/
public static MediaSizeName findMedia(float x, float y, int units) {
MediaSize match = MediaSize.ISO.A4;
if (x <= 0.0f || y <= 0.0f || units < 1) {
throw new IllegalArgumentException("args must be +ve values");
}
double ls = x * x + y * y;
double tmp_ls;
float[] dim;
float diffx = x;
float diffy = y;
for (int i = 0; i < sizeVector.size(); i++) {
MediaSize mediaSize = (MediaSize) sizeVector.elementAt(i);
dim = mediaSize.getSize(units);
if (x == dim[0] && y == dim[1]) {
match = mediaSize;
break;
} else {
diffx = x - dim[0];
diffy = y - dim[1];
tmp_ls = diffx * diffx + diffy * diffy;
if (tmp_ls < ls) {
ls = tmp_ls;
match = mediaSize;
}
}
}
return match.getMediaSizeName();
}
/** Returns closest matching MediaSizeName among given array of Media */
public static MediaSizeName findMedia(Media[] media, float x, float y, int units) {
if (x <= 0.0f || y <= 0.0f || units < 1) {
throw new IllegalArgumentException("args must be +ve values");
}
if (media == null || media.length == 0) {
throw new IllegalArgumentException("args must have valid array of media");
}
int size = 0;
MediaSizeName[] msn = new MediaSizeName[media.length];
for (int i = 0; i < media.length; i++) {
if (media[i] instanceof MediaSizeName) {
msn[size++] = (MediaSizeName) media[i];
}
}
if (size == 0) {
return null;
}
int match = 0;
double ls = x * x + y * y;
double tmp_ls;
float[] dim;
float diffx = x;
float diffy = y;
for (int i = 0; i < size; i++) {
MediaSize mediaSize = MediaSize.getMediaSizeForName(msn[i]);
if (mediaSize == null) {
continue;
}
dim = mediaSize.getSize(units);
if (x == dim[0] && y == dim[1]) {
match = i;
break;
} else {
diffx = x - dim[0];
diffy = y - dim[1];
tmp_ls = diffx * diffx + diffy * diffy;
if (tmp_ls < ls) {
ls = tmp_ls;
match = i;
}
}
}
return msn[match];
}