public static void applyGravityToLine(LineDefinition line, ConfigDefinition config) {
final List<ViewDefinition> views = line.getViews();
final int viewCount = views.size();
if (viewCount <= 0) {
return;
}
float totalWeight = 0;
for (int i = 0; i < viewCount; i++) {
final ViewDefinition child = views.get(i);
totalWeight += getWeight(child, config);
}
ViewDefinition lastChild = views.get(viewCount - 1);
int excessLength =
line.getLineLength()
- (lastChild.getLength()
+ lastChild.getSpacingLength()
+ lastChild.getInlineStartLength());
int excessOffset = 0;
for (int i = 0; i < viewCount; i++) {
final ViewDefinition child = views.get(i);
float weight = getWeight(child, config);
int gravity = getGravity(child, config);
int extraLength;
if (totalWeight == 0) {
extraLength = excessLength / viewCount;
} else {
extraLength = Math.round(excessLength * weight / totalWeight);
}
final int childLength = child.getLength() + child.getSpacingLength();
final int childThickness = child.getThickness() + child.getSpacingThickness();
Rect container = new Rect();
container.top = 0;
container.left = excessOffset;
container.right = childLength + extraLength + excessOffset;
container.bottom = line.getLineThickness();
Rect result = new Rect();
Gravity.apply(gravity, childLength, childThickness, container, result);
excessOffset += extraLength;
child.setInlineStartLength(result.left + child.getInlineStartLength());
child.setInlineStartThickness(result.top);
child.setLength(result.width() - child.getSpacingLength());
child.setThickness(result.height() - child.getSpacingThickness());
}
}
