/**
* Check the border-*-width and returns a value. It makes sense to do it only once for all the
* sides, so by having the code here.
*/
protected static CssValue checkBorderSideWidth(
ApplContext ac, CssProperty caller, CssExpression expression, boolean check)
throws InvalidParamException {
if (check && expression.getCount() > 1) {
throw new InvalidParamException("unrecognize", ac);
}
CssValue retval = null;
CssValue val = expression.getValue();
switch (val.getType()) {
case CssTypes.CSS_NUMBER:
val = ((CssNumber) val).getLength();
case CssTypes.CSS_LENGTH:
CssLength length = (CssLength) val;
if (!length.isPositive()) {
throw new InvalidParamException(
"negative-value", expression.getValue(), caller.getPropertyName(), ac);
}
retval = length;
break;
case CssTypes.CSS_IDENT:
if (inherit.equals(val)) {
retval = inherit;
} else {
retval = getMatchingIdent((CssIdent) val);
}
if (retval == null) {
throw new InvalidParamException(
"value", expression.getValue(), caller.getPropertyName(), ac);
}
break;
default:
throw new InvalidParamException("unrecognize", ac);
}
expression.next();
return retval;
}
/**
* Set the value of the property
*
* @param expression The expression for this property
* @param check set it to true to check the number of values
* @throws org.w3c.css.util.InvalidParamException The expression is incorrect
*/
public CssBorderWidth(ApplContext ac, CssExpression expression, boolean check)
throws InvalidParamException {
if (check && expression.getCount() > 4) {
throw new InvalidParamException("unrecognize", ac);
}
setByUser();
CssValue val;
char op;
ArrayList<CssValue> res = new ArrayList<CssValue>();
while (res.size() < 4 && !expression.end()) {
val = expression.getValue();
op = expression.getOperator();
switch (val.getType()) {
case CssTypes.CSS_NUMBER:
val = ((CssNumber) val).getLength();
case CssTypes.CSS_LENGTH:
CssLength length = (CssLength) val;
if (!length.isPositive()) {
throw new InvalidParamException(
"negative-value", expression.getValue(), getPropertyName(), ac);
}
res.add(length);
break;
case CssTypes.CSS_IDENT:
if (inherit.equals(val)) {
res.add(inherit);
break;
}
CssIdent match = getMatchingIdent((CssIdent) val);
if (match == null) {
throw new InvalidParamException("value", expression.getValue(), getPropertyName(), ac);
}
res.add(match);
break;
default:
throw new InvalidParamException("unrecognize", ac);
}
expression.next();
if (op != SPACE) {
throw new InvalidParamException("operator", Character.toString(op), ac);
}
}
// check that inherit is alone
if (res.size() > 1 && res.contains(inherit)) {
throw new InvalidParamException("unrecognize", ac);
}
value = (res.size() == 1) ? res.get(0) : new CssValueList(res);
// now assign the computed values...
top = new CssBorderTopWidth();
right = new CssBorderRightWidth();
bottom = new CssBorderBottomWidth();
left = new CssBorderLeftWidth();
switch (res.size()) {
case 1:
top.value = left.value = right.value = bottom.value = res.get(0);
break;
case 2:
top.value = bottom.value = res.get(0);
right.value = left.value = res.get(1);
break;
case 3:
top.value = res.get(0);
right.value = left.value = res.get(1);
bottom.value = res.get(2);
break;
case 4:
top.value = res.get(0);
right.value = res.get(1);
bottom.value = res.get(2);
left.value = res.get(3);
break;
default:
// can't happen
throw new InvalidParamException("unrecognize", ac);
}
}