public TreePath getPathClosestTo(final int x, final int y) {
if (getStateRoot() == null) {
return null;
}
if (isFixedRowHeight()) {
return getFixedHeightPathClosestToImpl(x, y);
}
if (!getStateRoot().isExpanded()) {
return isRootVisible() ? getStateRoot().getModelPath() : null;
}
int cummulativeHeight = 0;
VariableHeightStateNode currentParent = (VariableHeightStateNode) getStateRoot();
if (isRootVisible()) {
if (currentParent.getHeight() > y) {
return currentParent.getModelPath();
}
cummulativeHeight += currentParent.getHeight();
}
while (true) {
int modelChildCount = currentParent.getModelChildCount();
if (modelChildCount == 0) {
return currentParent.getModelPath();
}
for (int i = 0; i < modelChildCount; i++) {
if (cummulativeHeight + currentParent.getChildrenHeights()[i] > y
|| i + 1 == modelChildCount) {
Object modelChild = currentParent.getModelChildNode(i);
VariableHeightStateNode childNode =
(VariableHeightStateNode) currentParent.getChild(modelChild);
if (childNode != null) {
currentParent = childNode;
if (cummulativeHeight + currentParent.getHeight() > y || !currentParent.isExpanded()) {
return currentParent.getModelPath();
}
cummulativeHeight += currentParent.getHeight();
break;
}
return currentParent.getModelPath().pathByAddingChild(modelChild);
}
cummulativeHeight += currentParent.getChildrenHeights()[i];
}
}
}
public TreePath getPathForRow(final int row) {
if (row < 0 || row >= getRowCount()) {
return null;
}
if (isRootVisible() && row == 0) {
return getStateRoot().getModelPath();
}
VariableHeightStateNode parent = (VariableHeightStateNode) getStateRoot();
while (true) {
if (parent.getChildCount() == 0) {
int modelIndex = row - parent.getRow() - 1;
Object modelChild = parent.getModelChildNode(modelIndex);
return parent.getModelPath().pathByAddingChild(modelChild);
}
for (int i = 0; i < parent.getChildCount(); i++) {
VariableHeightStateNode childNode = (VariableHeightStateNode) parent.get(i);
if (childNode.getRow() == row) {
return childNode.getModelPath();
}
if (childNode.getRow() > row) {
int modelChildIndex = parent.getModelIndexOfChild(childNode.getModelNode());
int modelIndex = modelChildIndex - (childNode.getRow() - row);
Object modelChild = parent.getModelChildNode(modelIndex);
return parent.getModelPath().pathByAddingChild(modelChild);
}
if (childNode.getRow() < row
&& childNode.getRow() + childNode.getTotalChildrenCount() >= row) {
parent = childNode;
break;
}
if (i == parent.getChildCount() - 1) {
int modelChildIndex = parent.getModelIndexOfChild(childNode.getModelNode());
int modelIndex =
modelChildIndex + row - (childNode.getRow() + childNode.getTotalChildrenCount());
Object modelChild = parent.getModelChildNode(modelIndex);
return parent.getModelPath().pathByAddingChild(modelChild);
}
}
}
}
