private void justifyLineAreas(
BlockArea b, double measure, double consumed, int numChildren, BlockAlignment alignment) {
double available = measure - consumed;
if (alignment == BlockAlignment.JUSTIFY) alignment = BlockAlignment.SPACE_BETWEEN;
int numFillers;
if (alignment == BlockAlignment.SPACE_AROUND) {
numFillers = numChildren + 1;
} else if (alignment == BlockAlignment.SPACE_BETWEEN) {
numFillers = numChildren - 1;
} else numFillers = 0;
double fill;
if (numFillers > 0) fill = available / numFillers;
else fill = 0;
if (fill > 0) {
List<AreaNode> children = new java.util.ArrayList<AreaNode>(b.getChildren());
for (AreaNode c : children) {
AreaNode f = new BlockFillerArea(b.getElement(), 0, fill);
if ((c == children.get(0)) && (alignment == BlockAlignment.SPACE_BETWEEN)) continue;
else b.insertChild(f, c, null);
}
if (alignment == BlockAlignment.SPACE_AROUND) {
AreaNode f = new BlockFillerArea(b.getElement(), 0, fill);
b.insertChild(f, null, null);
}
}
}
private void alignLineAreas(BlockArea b, LayoutState ls) {
BlockAlignment alignment = ls.getReferenceAlignment();
ReferenceArea r = ls.getReferenceArea();
double measure = r.isVertical() ? r.getWidth() : r.getHeight();
double consumed = 0;
int numChildren = 0;
for (AreaNode c : b.getChildren()) {
consumed += c.getBPD();
++numChildren;
}
double available = measure - consumed;
if (available > 0) {
if (alignment == BlockAlignment.BEFORE) {
// no-op
} else if (alignment == BlockAlignment.AFTER) {
// no-op
} else if (alignment == BlockAlignment.CENTER) {
// no-op
} else {
justifyLineAreas(b, measure, consumed, numChildren, alignment);
}
} else if (available < 0) {
b.setOverflow(-available);
}
}