/**
* Called when a drop is completed and we're in grid-editing mode. This will insert the dragged
* element into the target cell.
*
* @param targetNode the GridLayout node
* @param element the dragged element
* @return the newly created node
*/
public INode handleGridModeDrop(INode targetNode, IDragElement element) {
String fqcn = element.getFqcn();
INode newChild = targetNode.appendChild(fqcn);
int column = mColumnMatch.cellIndex;
if (mColumnMatch.createCell) {
mGrid.addColumn(column, newChild, UNDEFINED, false, UNDEFINED, UNDEFINED);
}
int row = mRowMatch.cellIndex;
if (mRowMatch.createCell) {
mGrid.addRow(row, newChild, UNDEFINED, false, UNDEFINED, UNDEFINED);
}
mGrid.setGridAttribute(newChild, ATTR_LAYOUT_COLUMN, column);
mGrid.setGridAttribute(newChild, ATTR_LAYOUT_ROW, row);
int gravity = 0;
if (mColumnMatch.type == SegmentType.RIGHT) {
gravity |= GravityHelper.GRAVITY_RIGHT;
} else if (mColumnMatch.type == SegmentType.CENTER_HORIZONTAL) {
gravity |= GravityHelper.GRAVITY_CENTER_HORIZ;
}
if (mRowMatch.type == SegmentType.BASELINE) {
// There *is* no baseline gravity constant, instead, leave the
// vertical gravity unspecified and GridLayout will treat it as
// baseline alignment
// gravity |= GravityHelper.GRAVITY_BASELINE;
} else if (mRowMatch.type == SegmentType.BOTTOM) {
gravity |= GravityHelper.GRAVITY_BOTTOM;
} else if (mRowMatch.type == SegmentType.CENTER_VERTICAL) {
gravity |= GravityHelper.GRAVITY_CENTER_VERT;
}
if (!GravityHelper.isConstrainedHorizontally(gravity)) {
gravity |= GravityHelper.GRAVITY_LEFT;
}
if (!GravityHelper.isConstrainedVertically(gravity)) {
gravity |= GravityHelper.GRAVITY_TOP;
}
mGrid.setGridAttribute(newChild, ATTR_LAYOUT_GRAVITY, getGravity(gravity));
if (mGrid.declaredColumnCount == UNDEFINED || mGrid.declaredColumnCount < column + 1) {
mGrid.setGridAttribute(mGrid.layout, ATTR_COLUMN_COUNT, column + 1);
}
return newChild;
}
