children inside hbox and vbox have spacing between them,
how do you remove this empty space?
I need to have 0 space between child elements of a hbox or vbox
Set the verticalGap/horizontalGap properties to 0.
You should probably still set the horizontalGap to 0, and than add paddingLeft and paddingRight to all the elements that need spacing...
Related
I am trying to change hbox cell width via changing child node width in the hbox
Hbox hbox = new Hbox(new Label("node1"), new Label(node2), new Label(node3));
//Lets say I wanna change the lable says "node3"
//i tried below option. did not work
hbox.getChildren().get(2).maxWidth(150);
node.maxWidth() is invoked by layouts to query the maximum size of the node, to change child width (label) cast it then use the setter
((Label) hBox.getChildren().get(2)).setPrefWidth(150);
For some reason or another textExampleTwo.setLayoutX(40) does not actually result in the Text moving at all to the right. Is this a bug or have I missed something important here?
public void start(Stage stage) throws Exception {
FlowPane flowPane = new FlowPane();
flowPane.setOrientation(Orientation.VERTICAL);
Text textExampleOne = new Text("An example - 1");
Text textExampleTwo = new Text("An example - 2");
textExampleTwo.setLayoutX(40.0);
flowPane.getChildren().addAll(textExampleOne, textExampleTwo);
Scene applicationScene = new Scene(flowPane);
stage.setHeight(400.0);
stage.setWidth(400.0);
stage.setScene(applicationScene);
stage.show();
}
You've missed something important here:
Many Panes including FlowPane determine the position of their children on their own. For positioning the layoutX and layoutY properties are used. If you assign a new value to one of them and the Node is a child of a layout that positions it's children itself, this just leads to the position to be changed back during the next layout pass.
The exception to this are Nodes with the managed property set to false. This leads to neither layoutX nor layoutY being assigned however.
In your case you seem to want a combination of the two.
In this case the desired effect can be achieved by setting a margin.
// set all insets except the left one to 0
FlowPane.setMargin(textExampleOne, new Insets(0, 0, 0, 40));
Note however that this does not set the x position to 40, but it keeps a space of size 40 at the left of the Node. If you add enough children before this node to move it to the second column, this spacing would be used to calculate the distance to the beginning of the column.
Hi I'm trying to create a simple layout that looks like this using JavaFX.
I would like the user to be able to drag/resize the middle bar. I've tried to make this using a GridPane. But I can't figure out how to get the middle resized. Perhaps GridPane is not the way to go. Both panes will contain a lot of other program code later on. Thanks!
Rectangle2D primaryScreenBounds = Screen.getPrimary().getVisualBounds();
stageRef.setMaxWidth(primaryScreenBounds.getWidth());
stageRef.setMaxHeight(primaryScreenBounds.getHeight());
GridPane gridPane = new GridPane();
gridPane.setGridLinesVisible(true);
gridPane.setPadding(new Insets(10));
Scene scene = new Scene(gridPane);
VBox vBoxMain = new VBox();
vBoxMain.setPrefWidth((primaryScreenBounds.getWidth()/5)*4);
vBoxMain.setPrefHeight(primaryScreenBounds.getHeight());
TextArea textArea = new TextArea();
textArea.setWrapText(true);
textArea.setPrefHeight(primaryScreenBounds.getHeight());
vBoxMain.getChildren().addAll(textArea);
vBoxMain.isResizable();
VBox vBoxSide = new VBox();
vBoxSide.setPrefWidth((primaryScreenBounds.getWidth()/5));
vBoxSide.setPrefHeight(primaryScreenBounds.getHeight());
vBoxSide.isResizable();
gridPane.add(vBoxSide, 1,1,1,1);
gridPane.add(vBoxMain, 2,1,4,1);
stageRef.setScene(scene);
stageRef.show();
You could use a SplitPane:
A control that has two or more sides, each separated by a divider,
which can be dragged by the user to give more space to one of the
sides, resulting in the other side shrinking by an equal amount.
Then you add two others containers to this pane allowing the user to change the position of the divider. You can also set minimum widths for each component within the pane or set the position of each divider within your code.
Is it possible to manage child elements in a HBox, so that the sum of the widths of all child elements is equal to the width of the HBox?
So that elements fill the HBox and no space is left.
The height of the child elements is by default the height of the HBox, so how about the width? I don't want to calculate the width in my program. It would be better if the layout does this automatically, so that no calculation is needed.
It depends what kind of children does the HBox contain. Some of the children may not be resizable nodes. However, generally speaking, you can use HBox.setHgrow() method and set the same Priority for all children of hbox. The explanation is in its javadoc:
Sets the horizontal grow priority for the child when contained by an
hbox. If set, the hbox will use the priority to allocate additional
space if the hbox is resized larger than it's preferred width. If
multiple hbox children have the same horizontal grow priority, then
the extra space will be split evening between them. If no horizontal
grow priority is set on a child, the hbox will never allocate it
additional horizontal space if available. Setting the value to null
will remove the constraint.
Additionally, if you are trying to obtain a grid-like layout then try out other layout options, for instance TilePane or FlowPane and maybe GridPane.
The simple code for your answer would be this:
Button button1 = new Button("Save");
Button button2 = new Button("Delete");
HBox.setHgrow(button1, Priority.ALWAYS);
HBox.setHgrow(button2, Priority.ALWAYS);
It's recommended to use HBox class rather than name of HBox pane.
In FXML:
<HBox>
<Label HBox.hgrow="ALWAYS" maxWidth="Infinity">
TEST
</Label>
</HBox>
Adding to #bdshahab's answer, since HBox will try to resize their children to their preferred widths, they will only fill the box if their combined preferred widths are wider than the HBox width.
So it may be necessary to do something like:
Button button1 = new Button("Save");
Button button2 = new Button("Delete");
HBox.setHgrow(button1, Priority.ALWAYS);
HBox.setHgrow(button2, Priority.ALWAYS);
button1.setPrefWidth(100000);
button2.setPrefWidth(100000);
I have a custom component that is extending the HBOX. Am adding a VBOX and a "HBOX" to it as its children.The VBOX has a label which acts as title to component and adding/deleting a pair of LINK BUTTONS to the "HBOX" dynamically on a particular event(might be a button click).
The parent HBOX width must grow/shrink whenever the link button is added/deleted dynamically.
How to calculate the same.I do not know.
you can set width and height dinamically with this:
var hb:HBox;
hb.percentHeight = 100; //height:100%
hb.percentWidth = 100; //widht:100%
You can set width with percent (100%) or bind width property to another width property (in mxml with {}).