@Override
  public Component prepareRenderer(TableCellRenderer renderer, int row, int column) {
    final Component result = super.prepareRenderer(renderer, row, column);
    final boolean selected =
        myExpandableItemsHandler.getExpandedItems().contains(new TableCell(row, column));

    // Fix GTK background
    if (UIUtil.isUnderGTKLookAndFeel()) {
      UIUtil.changeBackGround(this, UIUtil.getTreeTextBackground());
    }

    if (isTableDecorationSupported() && isStriped() && result instanceof JComponent) {
      final Color bg = row % 2 == 1 ? getBackground() : DECORATED_ROW_BG_COLOR;
      final JComponent c = (JComponent) result;
      final boolean cellSelected = isCellSelected(row, column);
      if (!cellSelected || (!hasFocus() && !getSelectionBackground().equals(c.getBackground()))) {
        c.setOpaque(true);
        c.setBackground(bg);
        for (Component child : c.getComponents()) {
          child.setBackground(bg);
        }
      }
    }

    if (!selected) return result;

    return new JComponent() {
      {
        add(result);
        setOpaque(false);
        setLayout(
            new AbstractLayoutManager() {
              @Override
              public Dimension preferredLayoutSize(Container parent) {
                return result.getPreferredSize();
              }

              @Override
              public void layoutContainer(Container parent) {
                Dimension size = parent.getSize();
                Insets i = parent.getInsets();
                Dimension pref = result.getPreferredSize();
                result.setBounds(
                    i.left,
                    i.top,
                    Math.max(pref.width, size.width - i.left - i.right),
                    size.height - i.top - i.bottom);
              }
            });
      }
    };
  }
Beispiel #2
0
  /**
   * 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;
  }