in src/main/java/com/intellij/util/ui/UIUtilities.java [472:490]
public static boolean pointOutsidePrefSize(JTable table, int row, int column, Point p) {
if (table.convertColumnIndexToModel(column) != 0 || row == -1) {
return true;
}
TableCellRenderer tcr = table.getCellRenderer(row, column);
Object value = table.getValueAt(row, column);
Component cell = tcr.getTableCellRendererComponent(table, value, false,
false, row, column);
Dimension itemSize = cell.getPreferredSize();
Rectangle cellBounds = table.getCellRect(row, column, false);
cellBounds.width = itemSize.width;
cellBounds.height = itemSize.height;
// See if coords are inside
// ASSUME: mouse x,y will never be < cell's x,y
assert (p.x >= cellBounds.x && p.y >= cellBounds.y);
return p.x > cellBounds.x + cellBounds.width ||
p.y > cellBounds.y + cellBounds.height;
}