// TransformerHandler
public void setResult(Result result) throws IllegalArgumentException {
Check.notNull(result);
if (result instanceof SAXResult) {
setTarget((SAXResult) result);
} else {
TransformerHandler th = saxHelper.newIdentityTransformerHandler();
th.setResult(result);
setTarget(new SAXResult(th));
}
}
public long transform(
BufferedImage src,
OutputStream os,
@Nullable Integer _targetWidth,
@Nullable Integer targetHeigth,
String outputFormat,
boolean allowDistort)
throws IOException, IllegalArgumentException {
Integer targetWidth = Check.ifNull(_targetWidth, src.getWidth());
int[] g = clipCalc(src.getWidth(), src.getHeight(), targetWidth, targetHeigth, allowDistort);
return transform(src, os, outputFormat, g);
}
private void setTarget(SAXResult result) {
ContentHandler ch = result.getHandler();
Check.notNull(ch);
contentHandler = ch;
LexicalHandler lh = result.getLexicalHandler();
if (lh != null) {
lexicalHandler = lh;
if (lexicalHandler instanceof DTDHandler) {
dtdHandler = (DTDHandler) lexicalHandler;
}
}
if (contentHandler instanceof DTDHandler) {
dtdHandler = (DTDHandler) contentHandler;
}
}
/**
* @param sw source canvas width
* @param sh source canvas height
* @param dw dest canvas width
* @param dh dest canvas height (nullable)
* @param allowDistort
* @return six integers that represent P1(0,1) P2(2,3) W(4) H(5) where P1 and P2 are the src
* clipping points and W,H are the actual dest width/height
*/
protected int[] clipCalc(
int sw,
int sh,
int dw,
@Nullable Integer dh,
boolean allowDistort /*, boolean allowExpand */) {
Check.notNull(dw);
boolean allowExpand = allowDistort;
if (dh == null) { // full
return sw < dw
? new int[] {0, 0, sw, sh, sw, sh}
: new int[] {0, 0, sw, sh, dw, scale(sh, dw, sw)};
} else if (allowDistort && allowExpand) {
return new int[] {0, 0, sw, sh, dw, dh};
} else { // clever scaling
if (dw > sw && dh > sh) {
return new int[] {0, 0, sw, sh, sw, sh};
} else if (dh > sh) {
int margin = approx((double) (sw - dw) / 2);
return new int[] {0 + margin, 0, sw - margin, sh, dw, sh};
} else if (dw > sw) {
int margin = approx((double) (sh - dh) / 2);
return new int[] {0, 0 + margin, sw, sh - margin, sw, dh};
} else {
double xRatio = (double) sw / (double) dw;
double yRatio = (double) sh / (double) dh;
if (xRatio > yRatio) {
int margin = approx((double) (sw - scale(dw, sh, dh)) / 2);
return new int[] {0 + margin, 0, sw - margin, sh, dw, dh};
} else {
int margin = approx((double) (sh - scale(dh, sw, dw)) / 2);
return new int[] {0, 0 + margin, sw, sh - margin, dw, dh};
}
}
}
}
public HandlerAndFiltersBean(Object handler, List<HandlerFilter> filters) {
this.handler = Check.notNull(handler);
this.filters = Collections.unmodifiableList(Check.notNull(filters));
}
public void setSystemId(String systemID) {
Check.notNull(systemID);
baseURI = URI.create(systemID);
Check.illegalargument.assertTrue(baseURI.isAbsolute() || systemID.startsWith("/"));
}