problem when trying to create a new look and feel
Lloyd Dupont
package lloyd.NeXT;
public class NeXTScrollBarUI BasicScrollBarUI
{
public static ComponentUI createUI(JComponent c)
{
return new NeXTScrollBarUI();
}
... other code
}
in my test function i write
public static void main(String[] args)
{
Frame f = new Frame();
UIManager.put("ScrollBarUI","lloyd.NeXT.NeXTScrollBarUI");
f.add(new JButton("hello"));
}
and i always have the following exception (with is stack)
UIDefaults.getUI() failed: no ComponentUI class for:
javax.swing.JScrollBar,0,0,0x0,invalid,alignmentX=null,alignmentY=null,borde
r=,flags=0,maximumSize=,minimumSize=,preferredSize=,blockIncrement=10,orient
ation=VERTICAL,unitIncrement=1]java.lang.Error
at javax.swing.UIDefaults.getUIError(UIDefaults.java:351)
at javax.swing.UIDefaults.getUI(UIDefaults.java:377)
at javax.swing.UIManager.getUI(UIManager.java:544)
at javax.swing.JScrollBar.updateUI(JScrollBar.java:192)
at javax.swing.JScrollBar.<init>(JScrollBar.java:143)
at javax.swing.JScrollBar.<init>(JScrollBar.java:158)
at javax.swing.JScrollBar.<init>(JScrollBar.java:172)
at lloyd.NeXT.Main.main(Main.java:31)
what can i do ?
even worst i define a LookAndFeel
package lloyd.NeXT;
public class NeXTLookAndFeel extends BasicLookAndFeel
{
public String getDescription() {return "simple NeXT look and feel (few
Component designed).";}
public String getID() {return "NeXT";}
public String getName() {return "NeXT/Lloyd";}
public boolean isNativeLookAndFeel() {return false;}
public boolean isSupportedLookAndFeel() {return true;}
protected void initClassDefaults(UIDefaults table)
{
super.initClassDefaults(table);
String NeXT = "lloyd.NeXT.NeXT";
Object[] classes =
{
"ScrollBarUI", NeXT + "ScrollBarUI"
};
table.putDefaults(classes);
}
}
and when in the test function i write
UIManager.setLookAndFeel("lloyd.NeXT.NeXTLookAndFeel");
this bugs ... (don't find my look and feel)
but if i write
UIManager.setLookAndFeel(new lloyd.NeXT.NeXTLookAndFeel());
this works well and deliver the same exception when i try to create my
JScrollBar