I have created a Hbox with several Buttons inside as children. I want to increase one button size and be on top of others. Not as appreciated in the figure... I Have tried with children_button.toFront() but it changes the layout order.
Any help would be appreciated.
i am not sure if this works in an Hbox as I think toFront puts the Child on the first position of the ChildList in the parent Node. But this would mean that HBox would layout it on the very left on first place. So maybe they are overriding the default behavior in this Case? Just my guess
Related
I am looking for a way to draw a node on top of the neighbouring ones in a HBox. Default behaviour means it is drawn on top of the previous one, but that also means the next one is drawn on top of it. For other containers, one could use the Node.toFront(), but changing the position of the node in the list containing a HBox's children also changes the actual position in the HBox, which is unwanted behaviour in my case. I appreciate any help, thank you.
EDIT:
The overlapping occurs when applying a DropShadow effect on an Ellipse and wrapping them in a StackPane along with a Text. It looks like the effect has a weird interaction with the HBox, as it works as intended without it. After adding the effect, it allocates more horizontal space for the ellipse, but not enough to cover the margins of the effect. Also, when clicking anywhere in the whole right half of the black rectangle, the mouse click is dispatched to the stackPane event handler, not to the rectangle's.
This happens
In VBox and HBox, the Node.toFront() and Node.toBack() functions will change the layout, so they are not usable. If you are using JavaFX 9+,you can use the viewOrder commands to change the rendering order of the Node in its Parent:
Node.getViewOrder()
Node.setViewOrder()
The default value of viewOrder is 0, so setting it to -1 will render it above all others. You can customize this to get specific orders. It also has a CSS property -fx-view-order.
I want to know, if a node is visible at the current view position of a scrollpane and also how much.
Does anyone know how to read the position values of a node according to this issue?
I tried it already with getBoundsInParent.getMaxX(), but this seems not to be the right way, because the parent of the node is not directly the scrollpane.
To get the visible height of the scrollpane use
scrollPane.getViewportBounds().getHeight();
Is there a way to make the elements of a VBox smoothly move to their new positions when a new element is inserted or removed?
I actually need only to make them move smoothly when I remove an element. Thank you for your answers!
Not without extending VBox and adding your own code to do so by overriding the addChild and removeChild functions.
I have a problem in flex scroll bars. I have a mxml component based on canvas. Inside that I have used a VBox for my form. Above that Vbox I have another canvas just for title.
My form gets longer than normal screen size when the grid inside that is filled with more data. In that case I want a vertical scroll bar just for Vbox in which my form is located. But the whole canvas is getting scrollbar including title canvas. how to solve this problem.
I set vertical scrollbar policy of main canvas to off and inside Vbox's VerticalScrollbarPolicy to on. but that's not working. It is not overriding the property of parent container.
Thanks.
Keep your Form inside a Canvas inside the parent canvas instead of VBox. VBox and HBox are set to grow automatically in the parent container, so if your form grows, your corresponding VBox will grow as well.
You want to overload the "updateDisplayList" function for your parent canvas, and force the height of your form Vbox to be canvasHeight-titleHeight (including padding, space, etc...) so that the VBox never grows larger than the screen. This will solve your problem. Just make sure you check for the existence of the VBox as sometimes the updateDisplayList will be called before it has been instantiated.
Had the same problem myself and decided to take the easy route.
Have the following
App->vbox->[vbox + hbox]
components are dynamically being added to last vbox. Wanted hbox to stay on screen and have scrollbars only in vbox above it(2nd vbox).
Was experiencing the same problem. All containers had scroll policy=off except for last vbox, but when dynamically adding components, when the components filled the vbox > 100%, the outer vbox would start to scroll.
Resolution was simple once I went back to the documentation.
Set scroll policy - horizontal and vert on app and first vbox to off, and also added autoLayout=false. This causes the engine to not resize the components after initialization, ie, they are static sized.
Once I added this property, no more scrollbars except for the inner vbox.
Tada!
I'm trying to style vscrollbar and hscrollbar inside a Vbox.But there's always a white square thing at the right bottom cornor which can not be styled.
My CSS is:
ScrollBar{
downArrowUpSkin: Embed(source="assets/images/scrollbar/arrow_down.png");
downArrowOverSkin: Embed(source="assets/images/scrollbar/arrow_down.png");
downArrowDownSkin: Embed(source="assets/images/scrollbar/arrow_down.png");
upArrowUpSkin: Embed(source="assets/images/scrollbar/arrow_up.png");
upArrowOverSkin: Embed(source="assets/images/scrollbar/arrow_up.png");
upArrowDownSkin: Embed(source="assets/images/scrollbar/arrow_up.png");
thumbDownSkin: Embed(source="assets/images/scrollbar/thumb.png");
thumbUpSkin: Embed(source="assets/images/scrollbar/thumb.png");
thumbOverSkin: Embed(source="assets/images/scrollbar/thumb.png");
trackSkin:Embed(source="assets/images/scrollbar/track.png");
fillAlphas:0,0,0,0;}
Could anyone help me out?Much Thanks!
This is a weird one. The white box at the bottom right is actually a (raw) child of the container.
To get around this you need to subclass whatever container you want to add your styled scrollbars to and remove the child called "whitebox":
var whitebox:DisplayObject = rawChildren.getChildByName('whiteBox');
if (whitebox)
rawChildren.removeChild(whitebox);
IIRC you need to do the above in two places: an override of createChildren and an override of validateDisplayList. In both cases remember to call the super class method first!
That area isn't controlled by the scroll bar(s), it's part of the original container. Does the VBox have it's background colour set to black?