B4J Question javafx.scene.layout.BackgroundRepeat (HELP)

[BeneBarros]

I have some images that are on the server.
I'm trying to put it deep in an AnchorPane. But this is returning me an error in "javafx.scene.layout.BackgroundRepeat".

"javafx.scene.layout.BackgroundSize" works.
"javafx.scene.layout.BackgroundPosition" works
"Javafx.scene.layout.BackgroundRepeat" does not work and returns the error below

setbackimage._initialize (java line: 65)
java.lang.RuntimeException: Constructor not found.
at anywheresoftware.b4j.object.JavaObject.InitializeNewInstance(JavaObject.java:94)
at b4j.example.setbackimage._initialize(setbackimage.java:65)
at b4j.example.main._testbackground(main.java:153)
at b4j.example.main._btaddremove_action(main.java:106)
at b4j.example.main._appstart(main.java:91)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:93)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:84)
at b4j.example.main.start(main.java:38)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$162(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
at java.lang.Thread.run(Thread.java:745)

Sub Class_Globals
    Private fx As JFX
    Private wdt, hgt As Double
    Private BkgSize As JavaObject
    Private BkgPos As JavaObject
    Private BkgRepeatX As JavaObject   
    Private BkgRepeatY As JavaObject   
End Sub

'Initializes the object. You can add parameters to this method if needed.
Public Sub Initialize(AP As AnchorPane)
    wdt = AP.Width
    hgt = AP.Height
    BkgSize.InitializeNewInstance("javafx.scene.layout.BackgroundSize", Array(wdt, hgt, True, True, True, False))
    BkgPos.InitializeNewInstance("javafx.scene.layout.BackgroundPosition", Array("LEFT", 10.0, True, "TOP", 0.0, True))
   
'    NO_REPEAT
'    The image Is placed once And Not repeated
'    REPEAT
'    The image Is repeated As often As needed To cover the area.
'    Round
'    The image Is repeated As often As will fit within the area.
'    SPACE
'    The image Is repeated As often As will fit within the area without being clipped And Then the images are spaced out To fill the area.   
'    BkgRepeatX.InitializeNewInstance("javafx.scene.layout.BackgroundRepeat", Array ("REPEAT"))
    BkgRepeatY.InitializeNewInstance("javafx.scene.layout.BackgroundRepeat", Array ("REPEAT"))
End Sub

 

[stevel05]

javafx.scene.layout.BackgroundRepeat is an Enum or a static class. It is not possible to create a new instance. You could initialize it as a static class and use getfield to get the required values, but this is not normally necessary. You can usually pass a string instead of an ENum variable. So whereever you want to use the REPEAT instance, just pass the string "REPEAT" and see if it works like that.

 

[BeneBarros]

javafx.scene.layout.BackgroundRepeat is an Enum or a static class. It is not possible to create a new instance. You could initialize it as a static class and use getfield to get the required values, but this is not normally necessary. You can usually pass a string instead of an ENum variable. So whereever you want to use the REPEAT instance, just pass the string "REPEAT" and see if it works like that.

would it be this??

BkgImg.InitializeNewInstance("javafx.scene.layout.BackgroundImage",Array(Img , "REPEAT", "NO_REPEAT" , BkgPos, BkgSize))

I'm going to change here.

 

[stevel05]

It looks OK according to the docs: http://docs.oracle.com/javase/8/javafx/api/javafx/scene/layout/BackgroundImage.html

Note there are some Defaults you could use by passing Null to some parameters which may make it easier.

 

[BeneBarros]

It looks OK according to the docs: http://docs.oracle.com/javase/8/javafx/api/javafx/scene/layout/BackgroundImage.html

Note there are some Defaults you could use by passing Null to some parameters which may make it easier.

Until then it's okay
Now I need to see how to build the background for the AnchorPane.

Thank you for your help

 

[BeneBarros]

I gave up
I was unable to transfer Background mounted to AnchorPane.

I'll do it another way:
Save the image in DirTemp and do the following
APpane.Style = "-fx-background-image: url('" & File.GetUri(File.DirTemp, imageName) & "'); -fx-background-repeat: repeat-x;"

 

[Erel]

Note that you should use CSSUtils to modify the css properties. Otherwise you will remove existing properties.

 

[BeneBarros]

Note that you should use CSSUtils to modify the css properties. Otherwise you will remove existing properties.

I'll use
Thanks Erel

 

[rboeck]

Yesterday i found ScenicView: http://fxexperience.com/scenic-view/
This tools shows all running javafx apps, the hierarchie inside and all related values. It makes problem solving of javafx style problems easier.
It is possible, to set style parameters to the running app!