public override Property Eval(Property[] args, PropertyInfo pInfo)
{
Length distance =
pInfo.getPropertyList().GetProperty("provisional-distance-between-starts").GetLength();
Length separation =
pInfo.getPropertyList().GetNearestSpecifiedProperty("provisional-label-separation").GetLength();
FObj item = pInfo.getFO();
while (item != null && !(item is ListItem))
{
item = item.getParent();
}
if (item == null)
{
throw new PropertyException("label-end() called from outside an fo:list-item");
}
Length startIndent = item.properties.GetProperty("start-indent").GetLength();
LinearCombinationLength labelEnd = new LinearCombinationLength();
LengthBase bse = new LengthBase(item, pInfo.getPropertyList(),
LengthBase.CONTAINING_BOX);
PercentLength refWidth = new PercentLength(1.0, bse);
labelEnd.AddTerm(1.0, refWidth);
labelEnd.AddTerm(-1.0, distance);
labelEnd.AddTerm(-1.0, startIndent);
labelEnd.AddTerm(1.0, separation);
labelEnd.ComputeValue();
return new LengthProperty(labelEnd);
}
public override Property Eval(Property[] args, PropertyInfo pInfo)
{
Number dbl = args[0].GetNumber();
if (dbl == null)
{
throw new PropertyException("Non number operand to ceiling function");
}
return new NumberProperty(Math.Ceiling(dbl.DoubleValue()));
}
public override Property Eval(Property[] args, PropertyInfo pInfo)
{
Number dbl = args[0].GetNumber();
if (dbl == null)
{
throw new PropertyException("Non number operand to round function");
}
double n = dbl.DoubleValue();
double r = Math.Floor(n + 0.5);
if (r == 0.0 && n < 0.0)
{
r = -r;
}
return new NumberProperty(r);
}
public override Property Eval(Property[] args, PropertyInfo pInfo)
{
Numeric distance = pInfo.getPropertyList().GetProperty("provisional-distance-between-starts").GetNumeric();
FObj item = pInfo.getFO();
while (item != null && !(item is ListItem))
{
item = item.getParent();
}
if (item == null)
{
throw new PropertyException("body-start() called from outside an fo:list-item");
}
Numeric startIndent =
item.properties.GetProperty("start-indent").GetNumeric();
return new NumericProperty(distance.add(startIndent));
}
public override Property Eval(Property[] args, PropertyInfo pInfo)
{
float[] cfvals = new float[3];
for (int i = 0; i < 3; i++)
{
Number cval = args[i].GetNumber();
if (cval == null)
{
throw new PropertyException("Argument to rgb() must be a Number");
}
float colorVal = cval.FloatValue() / 255f;
if (colorVal < 0.0 || colorVal > 255.0)
{
FonetDriver.ActiveDriver.FireFonetWarning(
String.Format("Normalising colour value {0} to 0", cval.FloatValue()));
colorVal = 0.0f;
}
cfvals[i] = colorVal;
}
return new ColorTypeProperty(new ColorType(cfvals[0], cfvals[1],
cfvals[2]));
}
public abstract Property Eval(Property[] args, PropertyInfo propInfo);
private PropertyParser(string propExpr, PropertyInfo pInfo)
: base(propExpr)
{
this.propInfo = pInfo;
}
public static Property parse(string expr, PropertyInfo propInfo)
{
return new PropertyParser(expr, propInfo).parseProperty();
}