B4J Question RichViewfx CodeArea

[Guenter Becker]

Hey,
is anyone able to tell me in B4J how to clear the complete text in the codearea?

Public Sub ReplaceText(Start As Int, ThisEnd As Int, Text As String)
        JO.RunMethod("replaceText",Array As Object(Start, ThisEnd, Text))
    End Sub

    Public Sub Clear
        JO.RunMethod("replaceText",Array As Object(0, Length, " "))
    End Sub

Waiting for debugger to connect...
Program started.
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
Unexpected event (missing RaiseSynchronousEvents): textchanged_event
java.lang.Exception: Stack trace
    at java.base/java.lang.Thread.dumpStack(Thread.java:2282)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:199)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
    at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:100)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:98)
    at anywheresoftware.b4j.object.JavaObject$1.invoke(JavaObject.java:238)
    at jdk.proxy1/jdk.proxy1.$Proxy1.changed(Unknown Source)
    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.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.updateMulti(GenericEditableStyledDocumentBase.java:218)
    at org.fxmisc.richtext.model.GenericEditableStyledDocumentBase.updateSingle(GenericEditableStyledDocumentBase.java:210)
    at org.reactfx.util.Tuple3.exec(Tuple3.java:43)
    at org.fxmisc.richtext.model.GenericEditableStyledDocumentBase.replace(GenericEditableStyledDocumentBase.java:145)
    at org.fxmisc.richtext.model.SimpleEditableStyledDocument.replace(SimpleEditableStyledDocument.java:10)
    at org.fxmisc.richtext.GenericStyledArea.replace(GenericStyledArea.java:1570)
    at org.fxmisc.richtext.GenericStyledArea.replaceText(GenericStyledArea.java:1556)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at anywheresoftware.b4j.object.JavaObject.RunMethod(JavaObject.java:132)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:673)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:240)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:167)
    at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:104)
    at java.base/java.lang.reflect.Method.invoke(Method.java:578)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:111)
    at anywheresoftware.b4a.shell.ShellBA.raiseEvent2(ShellBA.java:100)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:98)
    at anywheresoftware.b4j.objects.NodeWrapper$1.handle(NodeWrapper.java:109)
    at anywheresoftware.b4j.objects.NodeWrapper$1.handle(NodeWrapper.java:1)
    at javafx.base/com.sun.javafx.event.CompositeEventHandler.dispatchBubblingEvent(CompositeEventHandler.java:86)
    at javafx.base/com.sun.javafx.event.EventHandlerManager.dispatchBubblingEvent(EventHandlerManager.java:234)

 

[teddybear]

I'm curious why you replace text using javaobject instead of the method ReplaceText of CodeArea.

This error only appears in the debug mode of B4xPages project.
To avoid this error in debug mode, you need to modify the class CodeArea.

'    Dim Event As Object = JO.CreateEvent("javafx.beans.value.ChangeListener","TextChanged","")
    Dim Event As Object = JO.CreateEventFromUI("javafx.beans.value.ChangeListener","TextChanged","")

This also applies to this thread.

 

[Guenter Becker]

I'm curious why you replace text using javaobject instead of the method ReplaceText of CodeArea.

This error only appears in the debug mode of B4xPages project.
To avoid this error in debug mode, you need to modify the class CodeArea.

'    Dim Event As Object = JO.CreateEvent("javafx.beans.value.ChangeListener","TextChanged","")
    Dim Event As Object = JO.CreateEventFromUI("javafx.beans.value.ChangeListener","TextChanged","")

This also applies to this thread.

I love people who knows more than I do. Thank you it works.