Unable to clear the codeArea

[niranjannitesh]

I am unable to configure how to delete all the text content

[JordanMartinez]

Have you tried area.clear()

[niranjannitesh]

Caused by: java.lang.IllegalStateException: Cannot get the type of a change that neither inserts nor deletes anything.
	at org.fxmisc.richtext.model.TextChange.<init>(TextChange.java:31)
	at org.fxmisc.richtext.model.RichTextChange.<init>(RichTextChange.java:6)
	at org.fxmisc.richtext.model.ReadOnlyStyledDocument.lambda$null$7(ReadOnlyStyledDocument.java:274)
	at org.reactfx.util.Tuple2.map(Tuple2.java:31)
	at org.fxmisc.richtext.model.ReadOnlyStyledDocument.lambda$replace$8(ReadOnlyStyledDocument.java:271)
	at org.reactfx.util.Tuple2.map(Tuple2.java:31)
	at org.fxmisc.richtext.model.ReadOnlyStyledDocument.replace(ReadOnlyStyledDocument.java:270)
	at org.fxmisc.richtext.model.ReadOnlyStyledDocument.replace(ReadOnlyStyledDocument.java:260)
	at org.fxmisc.richtext.model.GenericEditableStyledDocumentBase.setStyleSpans(GenericEditableStyledDocumentBase.java:158)
	at org.fxmisc.richtext.model.SimpleEditableStyledDocument.setStyleSpans(SimpleEditableStyledDocument.java:7)
	at org.fxmisc.richtext.GenericStyledArea.setStyleSpans(GenericStyledArea.java:1281)
	at borland.c.FXMLDocumentController.lambda$addCodeArea$1(FXMLDocumentController.java:65)
	at org.reactfx.util.NonAccumulativeStreamNotifications.lambda$head$0(NotificationAccumulator.java:134)
	at org.reactfx.ObservableBase.notifyObservers(ObservableBase.java:68)
	at org.reactfx.ObservableBase.notifyObservers(ObservableBase.java:57)
	at org.reactfx.ProperEventStream.emit(ProperEventStream.java:18)
	at org.reactfx.FilterStream.lambda$observeInputs$0(FilterStream.java:20)
	at org.reactfx.util.QueuingStreamNotifications.lambda$head$0(NotificationAccumulator.java:217)
	at org.reactfx.ObservableBase.notifyObservers(ObservableBase.java:68)
	at org.reactfx.SuspendableBase.resume(SuspendableBase.java:64)
	at org.reactfx.CloseableOnceGuard.close(Guard.java:49)
	at org.reactfx.MultiGuard.close(Guard.java:83)
	at org.reactfx.Suspendable$1.resumeSource(Suspendable.java:118)
	at org.reactfx.Suspendable$1.suspendSource(Suspendable.java:104)
	at org.reactfx.util.NonAccumulativeStreamNotifications.lambda$head$0(NotificationAccumulator.java:134)
	at org.reactfx.ObservableBase.notifyObservers(ObservableBase.java:68)
	at org.reactfx.ObservableBase.notifyObservers(ObservableBase.java:57)
	at org.reactfx.ProperEventStream.emit(ProperEventStream.java:18)
	at org.reactfx.EventStreams$3.lambda$observeInputs$0(EventStreams.java:105)
	at org.reactfx.value.ChangeListenerWrapper.accept(Val.java:786)
	at org.reactfx.util.AbstractReducingStreamNotifications.lambda$head$0(NotificationAccumulator.java:248)
	at org.reactfx.ObservableBase.notifyObservers(ObservableBase.java:68)
	at org.reactfx.ObservableBase.notifyObservers(ObservableBase.java:57)
	at org.reactfx.value.ValBase.invalidate(ValBase.java:32)
	at org.reactfx.SuspendableBoolean.release(SuspendableBoolean.java:24)
	at org.reactfx.CloseableOnceGuard.close(Guard.java:49)
	at org.reactfx.Suspendable.suspendWhile(Suspendable.java:49)
	at org.fxmisc.richtext.model.GenericEditableStyledDocumentBase.update(GenericEditableStyledDocumentBase.java:222)
	at org.reactfx.util.Tuple3.exec(Tuple3.java:43)
	at org.fxmisc.richtext.model.GenericEditableStyledDocumentBase.replace(GenericEditableStyledDocumentBase.java:129)
	at org.fxmisc.richtext.model.SimpleEditableStyledDocument.replace(SimpleEditableStyledDocument.java:7)
	at org.fxmisc.richtext.GenericStyledArea.replace(GenericStyledArea.java:1302)
	at org.fxmisc.richtext.GenericStyledArea.replaceText(GenericStyledArea.java:1297)
	at org.fxmisc.richtext.model.EditActions.clear(EditActions.java:140)
	at borland.c.FXMLDocumentController.openFile(FXMLDocumentController.java:83)
	... 53 more

[niranjannitesh]

codeArea.setStyleSpans(0, computeHighlighting(codeArea.getText()));

[JordanMartinez]

Caused by: java.lang.IllegalStateException: Cannot get the type of a change that neither inserts nor deletes anything.

That's a known bug in the 0.7-M4 and 0.7-M5 releases. Until Tomas makes a new release, use 0.7-M3, or use the Jitpack gradle plugin (See the "Snapshots" section) to use a commit that is newer or equal to commit 77086ab1c3306e0f6a7ec0be33f8592aab2b0389 (#500)

Also, calling codeArea.setStyleSpans(0, computeHighlighting(codeArea.getText())) will cause an undesired scroll jump. You can see #390 for more details.