// Overridden for performance reasons. ---->
@Override
public boolean isOpaque() {
Color back = getBackground();
Component p = getParent();
if (Objects.nonNull(p)) {
p = p.getParent();
} // p should now be the JTable.
boolean colorMatch =
Objects.nonNull(back)
&& Objects.nonNull(p)
&& back.equals(p.getBackground())
&& p.isOpaque();
return !colorMatch && super.isOpaque();
}
/**
* Renders a table cell in the main JTable. As a TableCellRenderer, we have to implement this
* method, but we use it to colour different types of matches in different ways. Remember that
* this is run every time a cell is displayed on the screen, so it needs to be as fast as can be.
*
* @param table The table which needs rendering.
* @param value The object which needs rendering. For now, this can only be a Name object, but
* later on we might colour different types of cells in different ways.
* @param isSelected Is this cell selected, i.e. is the row selected?
* @param hasFocus Is this cell focused, i.e. is this individual cell selected?
* @param row The row coordinate of this cell.
* @param column The column coordinate of this cell.
* @return A component representing this cell.
*/
@Override
public Component getTableCellRendererComponent(
JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
// TODO: Check if we can get a saving out of this by just rendering a JLabel/JTextField
// directly.
Component c =
defTableCellRenderer.getTableCellRendererComponent(
table, value, isSelected, hasFocus, row, column);
// Set all backgrounds to white.
c.setBackground(Color.WHITE);
if (value == null) {
// Null values look null-ish.
c.setBackground(COLOR_NULL);
return c;
} else if (hasFocus) {
// ANY cell with focus should look focussed.
c.setBackground(COLOR_FOCUS);
return c;
} else if (Name.class.isAssignableFrom(value.getClass())) {
// Aha, a Name! Color it special.
Name name = (Name) value;
int str_length = name.toString().length();
if (currentMatch == null) {
// No current match? Then just colour blank cells blank,
// and unmatched name colours special so people know that
// they have been recognized as names.
if (str_length == 0) {
c.setBackground(COLOR_BLANK_CELL);
} else {
c.setBackground(COLOR_NAME_UNMATCHED);
}
} else {
// So which RowIndex is the match against?
RowIndex against = currentMatch.getAgainst();
// System.err.println("Checking against: " + against);
if (str_length == 0) {
// Mark blank cells as such.
c.setBackground(COLOR_BLANK_CELL);
} else if (against.hasName(name)) {
// Perfect match!
c.setBackground(COLOR_NAME_FULL_MATCH);
} else if (against.hasName(name.getGenus())) {
// Genus-match.
c.setBackground(COLOR_NAME_GENUS_MATCH);
} else {
// No match!
c.setBackground(COLOR_NAME_NO_MATCH);
}
}
} else {
// Not a name? Note that Strings will NOT make it here: we don't
// push Strings through this. So this is really just for later.
c.setBackground(COLOR_NULL);
}
// If the row is selected, make it darker.
if (isSelected) c.setBackground(c.getBackground().darker());
return c;
}