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2009/08/17

JButton In ComboEditor

Code

combo02.setLayout(new LayoutManager() {
  @Override public void addLayoutComponent(String name, Component comp) {}
  @Override public void removeLayoutComponent(Component comp) {}
  @Override public Dimension preferredLayoutSize(Container parent) {
    return parent.getPreferredSize();
  }
  @Override public Dimension minimumLayoutSize(Container parent) {
    return parent.getMinimumSize();
  }
  @Override public void layoutContainer(Container parent) {
    if(!(parent instanceof JComboBox)) return;
    JComboBox cb   = (JComboBox)parent;
    int width    = cb.getWidth();
    int height     = cb.getHeight();
    Insets insets  = cb.getInsets();
    int buttonHeight = height - (insets.top + insets.bottom);
    int buttonWidth  = buttonHeight;
    int labelWidth   = buttonHeight;
    int loupeWidth   = buttonHeight;

    JButton arrowButton = (JButton)cb.getComponent(0);
    if(arrowButton != null) {
      Insets arrowInsets = arrowButton.getInsets();
      buttonWidth = arrowButton.getPreferredSize().width
        + arrowInsets.left + arrowInsets.right;
      arrowButton.setBounds(width - (insets.right + buttonWidth),
                            insets.top, buttonWidth, buttonHeight);
    }
    if(label != null) {
      Insets labelInsets = label.getInsets();
      labelWidth = label.getPreferredSize().width
        + labelInsets.left + labelInsets.right;
      label.setBounds(insets.left, insets.top, labelWidth, buttonHeight);
    }
    JButton rssButton = button;
    if(rssButton != null && rssButton.isVisible()) {
      Insets loupeInsets = rssButton.getInsets();
      loupeWidth = rssButton.getPreferredSize().width
        + loupeInsets.left + loupeInsets.right;
      rssButton.setBounds(width - (insets.right + loupeWidth + buttonWidth),
                          insets.top, loupeWidth, buttonHeight);
    }else{
      loupeWidth = 0;
    }

    Component editor = cb.getEditor().getEditorComponent();
    if ( editor != null ) {
      editor.setBounds(insets.left + labelWidth, insets.top,
        width -(insets.left+insets.right+buttonWidth+labelWidth+loupeWidth),
        height-(insets.top +insets.bottom));
    }
  }
});

References

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