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February 01, 2011

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February 01, 2011

Andrew Hughes: [SECURITY] IcedTea6 1.7.8, 1.8.5, 1.9.5 Released!. We are pleased to announce a new set of security releases, IcedTea6 1.7.8, IcedTea6 1.8.5 and IcedTea6 1.9.5. This update contains the following security updates: The IcedTea project provides a harness to build the source code from OpenJDK6 u...

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home > news > java technology > "transparent" panel - mixing heavyweight and lightweight components

"Transparent" Panel - Mixing Heavyweight and Lightweight Components

Marina Kamahele provides instruction on overlaying lightweight Swing widgets on top of heavyweight AWT components using a TransparentPanel. "Transparent" Panel Mon, 2009-11-02 Marina Kamahele This Java Tech Column provides instruction on overlaying lightweight Swing widgets on top of heavyweight AWT components using a TransparentPanel. When overlaying lightweight Swing widgets on top of heavyweight AWT components, it is convenient to group the Swing widgets on a transparent (non-opaque) JPanel so that one can use Swing layout managers and/or Swing utilities on a group of related Swing widgets. For example, all widgets added to the transparent JPanel can be made visible or invisible simultaneously with one setVisible() call on the JPanel. Unfortunately, a lightweight JPanel overlaid on top of a heavyweight AWT component cannot be transparent. To overcome this problem, one can implement a TransparentPanel as shown below. public class TransparentPanel extends JPanel { /** * Default constructor. Sets the layout manager to JPanel's * default layout manager: FlowLayout. */ public ...


Date: November, 02 2009
Url: http://www.java.net/article/2009/11/02/transparent-panel-mixing-heavyweight-and-lightweight-components


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