Constructor Detail

• public BoundsPopupMenuListener()

  Convenience constructore to allow the display of a horizontal scrollbar when required.

• public BoundsPopupMenuListener(boolean popupWider, boolean popupAbove)

  Convenience constructor that allows you to display the popup wider and/or above the combo box.

  Parameters:

  popupWider - when true, popup width is based on the popup preferred width

  popupAbove - when true, popup is displayed above the combobox

• public BoundsPopupMenuListener(int maximumWidth)

  Convenience constructor that allows you to display the popup wider than the combo box and to specify the maximum width

  Parameters:

  maximumWidth - the maximum width of the popup. The popupAbove value is set to "true".

• public BoundsPopupMenuListener(boolean scrollBarRequired, boolean popupWider, int maximumWidth, boolean popupAbove)

  General purpose constructor to set all popup properties at once.

  Parameters:

  scrollBarRequired - display a horizontal scrollbar when the preferred width of popup is greater than width of scrollPane.

  popupWider - display the popup at its preferred with

  maximumWidth - limit the popup width to the value specified (minimum size will be the width of the combo box)

  popupAbove - display the popup above the combo box

Method Detail

• public int getMaximumWidth()

  Return the maximum width of the popup.

  Returns:

  the maximumWidth value

• public boolean isPopupAbove()

  Determine if the popup should be displayed above the combo box.

  Returns:

  the popupAbove value

• public boolean isPopupWider()

  Determine if the popup might be displayed wider than the combo box

  Returns:

  the popupWider value

• public boolean isScrollBarRequired()

  Determine if the horizontal scroll bar might be required for the popup

  Returns:

  the scrollBarRequired value

• @java.lang.Override public void popupMenuCanceled(javax.swing.event.PopupMenuEvent e)

• @java.lang.Override public void popupMenuWillBecomeInvisible(javax.swing.event.PopupMenuEvent e)

• @java.lang.Override public void popupMenuWillBecomeVisible(javax.swing.event.PopupMenuEvent e)

  Alter the bounds of the popup just before it is made visible.

• public void setMaximumWidth(int maximumWidth)

  Set the maximum width for the popup. This value is only used when setPopupWider( true ) has been specified. A value of -1 indicates that there is no maximum.

  Parameters:

  maximumWidth - the maximum width of the popup

• public void setPopupAbove(boolean popupAbove)

  Change the location of the popup relative to the combo box.

  Parameters:

  popupAbove - true display popup above the combo box, false display popup below the combo box.

• public void setPopupWider(boolean popupWider)

  Change the width of the popup to be the greater of the width of the combo box or the preferred width of the popup. Normally the popup width is always the same size as the combo box width.

  Parameters:

  popupWider - true adjust the width as required.

• public void setScrollBarRequired(boolean scrollBarRequired)

  For some reason the default implementation of the popup removes the horizontal scrollBar from the popup scroll pane which can result in the truncation of the rendered items in the popup. Adding a scrollBar back to the scrollPane will allow horizontal scrolling if necessary.

  Parameters:

  scrollBarRequired - true add horizontal scrollBar to scrollPane false remove the horizontal scrollBar