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I was learning javafx and came across these two statements which I don't know their difference.
Pane pane = new Pane();
and
StackPane pane = new StackPane();
Can somebody enlighten me about the difference and when to use which?
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The StackPane layout pane places all the nodes into a single stack where every new node gets placed on the top of the previous node. It is represented by javafx.
Layout panes are containers which are used for flexible and dynamic arrangements of UI controls within a scene graph of a JavaFX application. As a window is resized, the layout pane automatically repositions and resizes the nodes it contains.
The Scene it self can only have one root Pane. So if you want 2 panes in the Scene you need 3. In your code this can look like this: StackPane rootPane = new StackPane(); Scene scene = new Scene(rootPane,...); Pane pane1 = new Pane(); Pane pane2 = new Pane(); rootPane.
The getChildren() method of the Pane parent class returns the ObservableList<Node> that contains all the elements in the Pane . It happens that ObservableList<E> extends and refines the contract for the List<E> interface in the Java Collections Framework.
AnchorPane allows the edges of child nodes to be anchored to an offset from the anchor pane's edges. If the anchor pane has a border and/or padding set, the offsets will be measured from the inside edge of those insets.
Java Program to create a StackPane, add circle, label, rectangle and add it to the stage: In this program we are creating a Label named label, a Rectangle named rectangle and a Circle named circle. Then set the font of the StackPane using the setFont() function.
Both are layouts but the Pane is the basis of all the other layouts, the difference is that the Pane offers a free positioning of nodes, and The StackPane (and other Node with the suffix Pane called Built-in Layout) in return, follow their own logic (Positions/Constraints...). The 'StackPane' for example lays out its children in a back-to-front stack StackPane. This is only superficial and limited information, here's a good tutorial : Layout in JavaFX
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The difference between both layouts is positioning of the children and the resizing of resizeable children.
Pane does not do any positioning. The child's layoutX and layoutY are left unmodified. Furthermore resizeable children are resized to their preferred sizes.
StackPane determines the position of children based on the alignment set for the child itself or the one set for the StackPane itself, if no position is set for the child. Resizable children are resized to a size that fits the StackPane's size best (still taking into account max size). Both can be modified by a margin set for individual children...
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