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JEdit 4.2 pre11 and Background plugin
Submitted by rharlos on Sunday, 11 April, 2004 - 19:55
Plugin Development
When I try to enable or disable the Background plugin via JEdit's Plugins menu, the following BeanShell error message appears:

~~~ begin error text:
java.lang.NoSuchMethodError: org.gjt.sp.jedit.textarea.JEditTextArea.getFoldVisibilityManager()Lorg/gjt/sp/jedit/textarea/FoldVisibilityManager;
at background.BackgroundHighlight.updateTextArea(Unknown Source)
at background.BackgroundHighlight.toggleHighlightEnabledFor(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at bsh.Reflect.invokeOnMethod(Reflect.java:149)
at bsh.Reflect.invokeStaticMethod(Reflect.java:100)
at bsh.Name.invokeMethod(Name.java:872)
at bsh.BSHMethodInvocation.eval(BSHMethodInvocation.java:72)
at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:102)
at bsh.BSHPrimaryExpression.eval(BSHPrimaryExpression.java:47)
at bsh.BSHBlock.evalBlock(BSHBlock.java:130)
at bsh.BSHBlock.eval(BSHBlock.java:80)
at bsh.BshMethod.invokeImpl(BshMethod.java:349)
at bsh.BshMethod.invoke(BshMethod.java:246)
at bsh.BshMethod.invoke(BshMethod.java:171)
at org.gjt.sp.jedit.BeanShell.runCachedBlock(BeanShell.java:523)
at org.gjt.sp.jedit.BeanShellAction.invoke(BeanShellAction.java:76)
at org.gjt.sp.jedit.gui.InputHandler.invokeAction(InputHandler.java:229)
at org.gjt.sp.jedit.jEdit$3.invokeAction(jEdit.java:2882)
at org.gjt.sp.jedit.EditAction$Wrapper.actionPerformed(EditAction.java:216)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$ForwardActionEvents.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$MouseInputHandler.mouseReleased(Unknown Source)
at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
~~~ end error text.

When I press the error dialog's "ok" button, only the area of the JEdit window that was covered by the error dialog has been cleared of the background image. If I first drag the error dialog box all over the JEdit window, I can effectively remove any trace of the image so that when I press the error dialog's "ok" button, the desired state of no background image results.

Anyone else experience this? Find a workaround or fix?

Richard
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Background Plugin Error since jEdit 4.2
by fireparser on Tue, 13/04/2004 - 09:40
Hi, Richard.

The reason why the BackGround plugin throws an error here is because the FoldVisibilityManager has been removed in 4.2. It is needed by the plugin to determine the area of the textfield which should be repainted (by means of the getFirstVisibleLine() and getLastVisibleLine() methods of the FoldVisibilityManager).
This functionality is now provided by the DisplayManager.

I fixed it and will send a source patch to Andre Kaplan.
Greetings.
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This bug has been fixed in version 1.0.0 of the Background Plugi
by hawkeey on Sun, 11/02/2007 - 19:31
This problem has been fixed in version 1.0.0 of the Background Plugin updated on February 7th, 2007 for versions 4.2 or higher.

http://plugins.jedit.org/plugins/?Background

http://jedit.svn.sourceforge.net/viewvc/jedit/plugins/Background/tags/Background-1.0.0/

Last prior release was 0.2.2 commited on March 2nd, 2002.
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Source Patch
by Anonymous on Mon, 16/08/2004 - 10:54
Can you release the source patch here possibly, or make it available for download?
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Changes into the source
by jcso01 on Sat, 23/10/2004 - 19:29
Hi there:

To correct this based in the comments from Andre, I just dowload the source code and modify the BackgroundHighlight.java file changing all the references to FoldVisibilityManager to DisplayManager, this is I change the import and the updateTextArea method, create the jar and thats all.
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If would be great if you subm
by Anonymous on Sat, 23/10/2004 - 22:39
If would be great if you submitted your changes to devel@jedit.org (as a patch), or better yet, asked for commit access to update CVS and did a new release -- that way everyone would benefit!
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4.2Final still has this bug
by Anonymous on Wed, 01/12/2004 - 03:03
As far as I can tell, JEdit 4.2Final still has this bug preventing Background plugin from functioning.
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jEdit 4.2 does not have a bug
by Anonymous on Wed, 01/12/2004 - 15:16
jEdit 4.2 does not have a bug preventing the Background plugin from working. The Background plugin just hasn't been updated for 4.2.

-Ollie
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main
by Anonymous on Wed, 01/12/2004 - 07:25
A-RET
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