コード例 #1
0
    @Override
    protected void customizeCellRenderer(
        JList list, Object value, int index, boolean selected, boolean hasFocus) {
      setIcon(myListEntryIcon);
      if (myUseIdeaEditor) {
        int max = list.getModel().getSize();
        String indexString = String.valueOf(index + 1);
        int count = String.valueOf(max).length() - indexString.length();
        char[] spaces = new char[count];
        Arrays.fill(spaces, ' ');
        String prefix = indexString + new String(spaces) + "  ";
        append(prefix, SimpleTextAttributes.GRAYED_ATTRIBUTES);
      } else if (UIUtil.isUnderGTKLookAndFeel()) {
        // Fix GTK background
        Color background =
            selected ? UIUtil.getListSelectionBackground() : UIUtil.getListBackground();
        UIUtil.changeBackGround(this, background);
      }
      String text = ((Item) value).shortText;

      FontMetrics metrics = list.getFontMetrics(list.getFont());
      int charWidth = metrics.charWidth('m');
      int maxLength = list.getParent().getParent().getWidth() * 3 / charWidth / 2;
      text = StringUtil.first(text, maxLength, true); // do not paint long strings
      append(text, SimpleTextAttributes.REGULAR_ATTRIBUTES);
    }