Java FX8 Tabs on the left side with horizontal tabs - javafx

I require a tabbed pane with tabs on the left side, the tab text/graphic needs to be horizontal
I did this on Scenebuilder few months back.
However when I add additional tabs via Java code, the tabs is on the left side but the graphic text is vertical unlike the tabs created using Scene builder.
In the attached image first two tabs are created through Scenebuilder and they are in the correct orientation, the third one was dynamically added using Java code.
Tab studentAdmission = new Tab();
studentAdmission.setContent((Parent)new FXMLLoader(getClass().getResource("Customer_View.fxml")).load());
studentAdmission.setGraphic(new Label("Student Admission"));
mainTab.getTabs().add(studentAdmission);
Could some one advise why this tab doesn't rotate as the other one.

Just figured out after posting the question that you need to add a StackPane containing a group containing a label to achieve this.
Tab studentAdmission = new Tab();
studentAdmission.setContent((Parent)new FXMLLoader(getClass().getResource("Customer_View.fxml")).load());
Label l = new Label("Student Admission");
l.setRotate(90);
StackPane stp = new StackPane(new Group(l));
studentAdmission.setGraphic(stp);
mainTab.getTabs().add(studentAdmission);

// Firstly
tabPane.setSide(Side.LEFT);
tabPane.setRotateGraphic(true);
Label l = new Label("Titel Tab1");
l.setRotate(90);
StackPane stp = new StackPane(new Group(l));
stp.setRotate(90);
tab1.setGraphic(stp);
l = new Label("Titel Tab2");
l.setRotate(90);
stp = new StackPane(new Group(l));
stp.setRotate(90);
tab2.setGraphic(stp);
tabPane.setTabMinHeight(100);
tabPane.setTabMaxHeight(100);

I needed to get something similar to this, but with left-aligned titles. I ended up with this solution.
TabPane setup:
TabPane tabPane = new TabPane();
tabPane.setSide(Side.LEFT);
tabPane.setRotateGraphic(true);
tabPane.setTabMinHeight(200); // Determines tab width. I know, its odd.
tabPane.setTabMaxHeight(200);
tabPane.getStyleClass().add("horizontal-tab-pane");
Tab setup:
Tab tab = new Tab(title, content);
tab.setClosable(false);
tab.setGraphic(graphic); // Graphic required. If you don't want one, use an empty label.
Platform.runLater(() -> {
// Get the "tab-container" node. This is what we want to rotate/shift for easy left-alignment.
// You can omit the last "getParent()" with a few tweaks for centered labels
Parent tabContainer = tab.getGraphic().getParent().getParent();
tabContainer.setRotate(90);
// By default the display will originate from the center.
// Applying a negative Y transformation will move it left.
// Should be the 'TabMinHeight/2'
tabContainer.setTranslateY(-100);
});
And the css:
.horizontal-tab-pane *.tab {
/* Determines the tab height */
-fx-pref-width: 60px;
/* Everything else is just aesthetics */
-fx-padding: 20px;
-fx-background-insets: 2 -1 -1 -1;
-fx-border-width: 1 0 1 1;
-fx-border-color: rgb(55, 55, 56) black black black;
}
.horizontal-tab-pane *.tab:selected {
-fx-background-color: rgb(45, 45, 46);
-fx-border-color: rgb(75, 125, 200) black rgb(45, 45, 46) black;
}

Related

JavaFX Layout issue within hbox

I want to add an statusbar to my application (the root pane is a vbox and the statusbar is a hbox with a fix height). On this statusbar I have a label with something like "2 processes running". As soon as the mouse hoovers this label, I want to add a Pane above this label with some details about the processes (like IntelliJ or Eclipse).
My problem in the moment is how to create this pane and position this pane above the label.
I create a simple example of my problem
The green area is a StackPane on the root VBox with VGow = Always. The red area is the Hbox with a fix height of 30 pixel. Then I added the yellow VBox the the HBox and put the minHeight to 300.
The problem is, that the yellow area should be above the red area (over the green area) and not outside the window.
What is the best way to achive something like that?
The only way I figured out was using a negative top margin amount (- max/min height). But then the window gets stretched because the yellow pane (or the green bordered pane is not on top of the other elements). The red crossed area shouldn't be there. The green boxed area should be above the other content. Probably I can't use a vbox as my root element?
Update 1
Here is an example - strange thing is, that it is working in this standalone example. But is that the way I should do something like that?
VBox rootBox = new VBox();
rootBox.setMaxHeight(500);
rootBox.setStyle("-fx-background-color: lightgreen");
StackPane contentPane = new StackPane();
contentPane.getChildren().add(new Button("Dont click me"));
contentPane.setStyle("-fx-background-color: lightblue");
VBox.setVgrow(contentPane, Priority.ALWAYS);
HBox statusbar = new HBox();
statusbar.setMinHeight(30);
statusbar.setMaxHeight(30);
statusbar.setStyle("-fx-background-color: red");
VBox processIndicatorBox = new VBox();
processIndicatorBox.setMinHeight(30);
processIndicatorBox.setMaxHeight(30);
HBox.setMargin(processIndicatorBox, new Insets(-300, 0, 0, 0));
StackPane processListPane = new StackPane();
processListPane.setStyle("-fx-background-color: yellow");
processListPane.setMinHeight(300);
processListPane.setMaxHeight(300);
processListPane.setMinWidth(150);
processListPane.setMaxWidth(150);
processListPane.setVisible(false);
Label label = new Label("Show processes");
label.setOnMouseEntered(mouseEvent -> processListPane.setVisible(true));
label.setOnMouseExited(mouseEvent -> processListPane.setVisible(false));
processIndicatorBox.getChildren().addAll(processListPane, label);
statusbar.getChildren().add(processIndicatorBox);
rootBox.getChildren().addAll(contentPane, statusbar);
Scene scene = new Scene(rootBox, 600, 500);
primaryStage.setScene(scene);
primaryStage.show();
Many greetings
Hauke
Did you consider using GridPane? ( https://docs.oracle.com/javase/8/javafx/api/javafx/scene/layout/GridPane.html ). Gives you more control to layout elements with different sizes. VBox and HBox are from my experience good when all elements have similar sizes.
Here a pseudo-pseudo code
GridPane grid = new GridPane();
Pane greenBox = new Pane(); //your green box
Pane redBox = new Pane(); //your red box
Pane yellowBox = new Pane(); //your yellow box
// add the panes to the grid pane and define where they are
grid.add(greenBox, 0, 0); set the green box in column 0 and row 0
grid.add(redBox, 0, 1); set the red box in column 0 and row 1
grid.add(yellowBox, 1, 1); set the yellowbox in column 1 and row 1
// size of the boxes
GridPane.setColumnSpan(greenBox,2); //The green box should span over 2 columns
GridPane.setRowSpan(yellowBox,2); //The red box should span over 2 rows
The boxes are now only empty panes, which will have a minimum size without content. Replace the Pane() boxes with the content you want to put in or put the content in the Pane() objects.

Region width not refreshing automatically after modifying Grid Pane to which the region width is bound - JavaFX

I'm making a simple Java GUI app using JavaFX that has a Border Pane as the root node.
In the top section of the Border Pane, there is a Grid Pane with three columns (top Grid Pane from now on).
In the first column of the top Grid Pane, there is a Home Button, in the second column, there is an empty Region that only serves as spacer between the first and third column of the top Grid Pane, and in the third column, there is another GridPane (right Grid Pane from now on).
The right Grid Pane contains one Button (Log In Button) on start. However, when a user successfully logs into the app, two other Buttons and a Label are added to the right Grid Pane as part of the Log In Button click event.
The spacer maxWidthProperty and minWidthProperty are bound to the top Grid Pane (tgp) widthProperty and the right Grid Pane(rgp) widthProperty like this:
spacer.minWidthProperty().bind(tgp.widthProperty().subtract(80).subtract(rgp.widthProperty()).subtract(3));
spacer.maxWidthProperty().bind(tgp.widthProperty().subtract(80).subtract(rgp.widthProperty()).subtract(3));
which makes the right Grid Pane move nicely with its buttons staying on the right side of the scene when a user resizes the main stage.
However, a problem occurs when the user logs in and additional buttons are added to the right Grid Pane. The spacer somehow misses this change and its width stays the same, which makes the additional Buttons appear outside of the current stage width. The only way to refresh the spacer width is to interact with the stage somehow, by clicking minimize/maximize/restore or by clicking any button on the scene.
Is there a way to automatically refresh Region width after the nodes to which its width is bound to are modified? Or, is there a better approach to making a top Grid Pane with one button on the left and modifiable number of buttons (nodes) on the right?
Edit: Here is a demonstration of the problem with several screenshots stacked on one another:
Minimal reproducible example:
BorderPane root = new BorderPane();
GridPane tgp = new GridPane();
tgp.minWidthProperty().bind(root.widthProperty());
tgp.maxWidthProperty().bind(root.widthProperty());
tgp.setStyle("-fx-background-color: WHITE; -fx-border-color: LIGHTGREY;");
tgp.setMinHeight(37);
tgp.setMaxHeight(37);
root.setTop(tgp);
Button homeButton = new Button("Home"));
homeButton.setMinHeight(35);
homeButton.setMaxHeight(35);
homeButton.setMinWidth(80);
homeButton.setMaxWidth(80);
tgp.add(homeButton, 0, 0);
GridPane rgp = new GridPane(); // Right Grid Pane - holds User related nodes
rgp.setHgap(5);
tgp.add(rgp, 2, 0);
Label unl = new Label("My Profile");
unl.setFont(new Font("Calibri", 15));
unl.setTextFill(Color.RED);
unl.setMinWidth(Region.USE_PREF_SIZE);
Button wlButton = new Button("Watchlist");
wlButton.setMinHeight(35);
wlButton.setMaxHeight(35);
wlButton.setMinWidth(80);
wlButton.setMaxWidth(80);
Button cartButton = new Button("Cart");
cartButton.setMinHeight(35);
cartButton.setMaxHeight(35);
cartButton.setMinWidth(60);
cartButton.setMaxWidth(60);
Button logInOutButton = new Button("Log In");
logInOutButton.setMinHeight(35);
logInOutButton.setMaxHeight(35);
logInOutButton.setMinWidth(60);
logInOutButton.setMaxWidth(60);
rgp.add(logInOutButton, 3, 0);
logInOutButton.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent event) {
if (logInOutButton.getText().equals("Log In")) {
LogInStage lis = new LogInStage();
lis.initStage();
if (lis.username != null) {
logInOutButton.setText("Log Out");
rgp.add(unl, 0, 0);
rgp.add(wlButton, 1, 0);
rgp.add(cartButton, 2, 0);
}
} else if (logInOutButton.getText().equals("Log Out")) {
logInOutButton.setText("Log In");
rgp.getChildren().remove(unl);
rgp.getChildren().remove(wlButton);
rgp.getChildren().remove(cartButton);
}
}
});
Region spacer = new Region();
spacer.minWidthProperty().bind(tgp.widthProperty().subtract(80).subtract(rgp.widthProperty()).subtract(3));
spacer.maxWidthProperty().bind(tgp.widthProperty().subtract(80).subtract(rgp.widthProperty()).subtract(3));
tgp.add(spacer, 1, 0)
It's always a bad idea to use bindings, if you can avoid it. Any changes to the size constraints can lead to a new layout pass being scheduled, but during the layout pass they are assumed to be constant. If you now introduce a binding the following sequence of events could happen:
A layout pass is requested for the GridPane, setting a flag to indicate layout is required
A layout pass happens. During the layout pass the children are resized. This triggers an update of the constraints of the children with the bindings.
The flag is cleared, but the changes to the contraints already happened. The layout won't reflect this. The GridPane gets another reason to do a layout.
I don't know, how your scene is set up in detail, but I recommend using column constraints: Set the grow priorities for the outer ones to SOMETIMES and the one for the center to ALWAYS. If you require some spacing around the children, you could use GridPane.setMargin (or the padding of the GridPane itself, if you require the a distance to the edges for all children).
#Override
public void start(Stage primaryStage) {
Button[] rightContent = new Button[3];
for (int i = 0; i < rightContent.length; i++) {
Button btn = new Button(Integer.toString(i));
GridPane.setColumnIndex(btn, i);
rightContent[i] = btn;
}
Button cycle = new Button("cycle");
GridPane rgp = new GridPane(); // I would usually use a HBox here
// don't grow larger than needed
rgp.setMaxWidth(Region.USE_PREF_SIZE);
// cycle though 0 to 3 buttons on the right
cycle.setOnAction(new EventHandler<ActionEvent>() {
int nextIndex = 0;
#Override
public void handle(ActionEvent event) {
if (nextIndex >= rightContent.length) {
rgp.getChildren().clear();
nextIndex = 0;
} else {
rgp.getChildren().add(rightContent[nextIndex]);
nextIndex++;
}
}
});
ColumnConstraints sideConstraints = new ColumnConstraints();
sideConstraints.setHgrow(Priority.SOMETIMES);
ColumnConstraints centerConstraints = new ColumnConstraints();
centerConstraints.setHgrow(Priority.ALWAYS);
//prefer to grow the center part of the GridPane
GridPane root = new GridPane();
root.getColumnConstraints().addAll(sideConstraints, centerConstraints, sideConstraints);
root.add(cycle, 0, 0);
root.add(rgp, 2, 0);
// add something to visualize the center part
// you could simply leave this part out
Region center = new Region();
center.setStyle("-fx-border-radius: 10;-fx-border-width: 1;-fx-border-color:black;");
root.add(center, 1, 0);
Scene scene = new Scene(root, 400, 300);
primaryStage.setScene(scene);
primaryStage.show();
}
As mentioned in the comments, the center region is not actually needed.

In JavaFX, how do you line up the labels with the CheckBoxes in a VBox layout?

I have created a TableView in JavaFX which dynamically loads VBoxs containing a list of CheckBoxs into in row. This is shown in the figure below:
As you can see in the figure, the labels next to the checkboxes do not line up with the checkbox its self.
I use the following to dynamically create the VBoxes:
private VBox getVBox(Map<Integer, String> item, Set<Integer> completed, String id) {
VBox box = new VBox();
box.setSpacing(0);
box.setPadding(new Insets(3,3,3,3));
for(Integer i : item.keySet()) {
CheckBox checkbox = new CheckBox(item.get(i));
checkbox.setId("item"+id+"-" + i.intValue());
if(completed.contains(i)) {
checkbox.setSelected(true);
}
checkbox.setPrefHeight(21);
box.getChildren().add(checkbox);
}
return box;
}
Even if I remove the setSpacing setting and setPadding setting and setPrefHeight setting, the issue remains unchanged.
The only CSS which I have applied to this table which is not by default is as follows:
.table-view{
-fx-background-color: transparent;
}
.table-view:focused{
-fx-background-color: transparent;
}
.table-row-cell:odd{
-fx-background-color: #E0E0E0;
-fx-background-insets: 0, 0 0 1 0;
-fx-padding: 0.0em;
}
.table-row-cell:even{
-fx-background-color: #BBD9E0;
-fx-background-insets: 0, 0 0 1 0;
-fx-padding: 0.0em;
}
My Question:
How can I make the checkbox labels line up with the checkboxes in a vertical manner? Can this not be done with a VBox?
Thank you for the assistance.
I suggest you use the ScenicView tool and check what element should be set to get vertical alignment
Download it add as library and put in code below lines:
ScenicView.show(current scene instance);

JavaFX - Create Button from Icon

I've been into custom controls with JavaFX recently and was wondering what the best way is to create a button that simply is an image. For instance here on Stack Overflow we have these buttons (I suppose that in reality they are links but I want the same effect in JavaFX) that do not look like buttons at all.
What is the best way of creating something similar in JavaFX? I know you can add images to buttons but is there then also a way of completely removing the background (I suspect there is)?
I use a custom ImageButton class in my projects. This is similar to fabian's approach, but uses an ImageView. It is also a bit simpler to implement, in my view.
public class ImageButton extends Button {
private final String STYLE_NORMAL = "-fx-background-color: transparent; -fx-padding: 2, 2, 2, 2;";
private final String STYLE_PRESSED = "-fx-background-color: transparent; -fx-padding: 3 1 1 3;";
public ImageButton(Image originalImage, double h, double w) {
ImageView image = new ImageView(originalImage);
image.setFitHeight(h);
image.setFitHeight(w);
image.setPreserveRatio(true);
setGraphic(image);
setStyle(STYLE_NORMAL);
setOnMousePressed(event -> setStyle(STYLE_PRESSED));
setOnMouseReleased(event -> setStyle(STYLE_NORMAL));
}
}
Then you just need to pass it the Image and dimensions:
ImageButton newButton = new ImageButton(new Image("icon.png"), 16, 16);
Just set the graphic property of the button accordingly.
Since stackoverflow uses svg paths, the following example uses SVGPath, but it could easily be changed to an ImageView and the scaling could replaced with setting fitWidth/fitHeight. If you do want to use ImageView though, you should be aware of the fact that ImageView does not provide a fill property and you need to work with opacity or with different images instead.
public static Button createIconButton(String svg) {
SVGPath path = new SVGPath();
path.setContent(svg);
Bounds bounds = path.getBoundsInLocal();
// scale to size 20x20 (max)
double scaleFactor = 20 / Math.max(bounds.getWidth(), bounds.getHeight());
path.setScaleX(scaleFactor);
path.setScaleY(scaleFactor);
path.getStyleClass().add("button-icon");
Button button = new Button();
button.setPickOnBounds(true); // make sure transparent parts of the button register clicks too
button.setGraphic(path);
button.setAlignment(Pos.CENTER);
button.getStyleClass().add("icon-button");
return button;
}
#Override
public void start(Stage primaryStage) {
// the following svg paths were copied from the stackoverflow website
HBox root = new HBox(
createIconButton("M15.19 1H4.63c-.85 0-1.6.54-1.85 1.35L0 10.79V15c0 1.1.9 2 2 2h16a2 2 0 0 0 2-2v-4.21l-2.87-8.44A2 2 0 0 0 15.19 1zm-.28 10l-2 2h-6l-2-2H1.96L4.4 3.68A1 1 0 0 1 5.35 3h9.12a1 1 0 0 1 .95.68L17.86 11h-2.95z"),
createIconButton("M15 2V1H3v1H0v4c0 1.6 1.4 3 3 3v1c.4 1.5 3 2.6 5 3v2H5s-1 1.5-1 2h10c0-.4-1-2-1-2h-3v-2c2-.4 4.6-1.5 5-3V9c1.6-.2 3-1.4 3-3V2h-3zM3 7c-.5 0-1-.5-1-1V4h1v3zm8.4 2.5L9 8 6.6 9.4l1-2.7L5 5h3l1-2.7L10 5h2.8l-2.3 1.8 1 2.7h-.1zM16 6c0 .5-.5 1-1 1V4h1v2z"));
Scene scene = new Scene(root);
scene.getStylesheets().add("style.css");
primaryStage.setScene(scene);
primaryStage.show();
}
style.css
/* set default fill of svg path */
.icon-button .button-icon {
-fx-fill: #888888;
}
/* set default fill of svg path */
.icon-button:focused {
-fx-background-color: lightblue;
-fx-background-radius: 0;
}
/* remove default button style & set size */
.icon-button {
-fx-background-color: transparent, transparent, transparent, transparent, transparent;
-fx-pref-height: 30;
-fx-pref-width: 30;
-fx-min-height: 30;
-fx-min-width: 30;
-fx-max-height: 30;
-fx-max-width: 30;
}
/* modify svg path fill for hovered/pressed button */
.icon-button:pressed .button-icon,
.icon-button:hover .button-icon {
-fx-fill: #444444;
}
Despite this being an old post, it still might be nice for those using a SceneBuilder to know that you can do this with a Button and an ImageView:
(I am using Gluon SceneBuilder)
Button Setup:
Under 'Graphic' set the Display to 'GRAPHIC_ONLY'
Then for the in-line CSS use: -fx-background-colour: transparent;
ImageView:
Set the image to whatever you want
In the 'Hierarchy' pick up and drop the ImageView onto the button
What it looks like when done:
Transparent Button ~ with only Image shown

Adjustment of contents in FlowPane

I have a flowpane in center and i applied a slider effect which gets invoke on a click of button on the right (so slider moves from right to left when expanded). I have followed JewelSea slider tutorial mentioned here Slider
Now i have two different flowpanes in two different nodes. Both the flowpane contains array of labels but the only difference is, One flowpane contains scrollbar and is contained in TitlePane while the other is without scrollbar and no titlepane.
So now if i click on slider the contents in the flowpane(without scrollbar & titlepane) gets automatically adjusted but its not the same case with the flowpane containing scrollbar.
Here is relevant code for flowpane with scrollbar-
public void loadCase() {
ScrollPane s = null;
if (!homeController.mainTabPane.getTabs().contains(testTab)) {
int app = 0;
if (appareaList.size() > 0) {
FlowPane fpTestmoduleContainer = new FlowPane();
FlowPane example = new FlowPane();
for (ApplicationAreas appttribute : appareaList) {
appTestTitledPane[app] = new TitledPane();
appTestTitledPane[app].setText(appttribute.getApplication_name());
appTestTitledPane[app].setPrefSize(Control.USE_COMPUTED_SIZE, Control.USE_COMPUTED_SIZE);
/*Module loop start*/
fpTestmoduleContainer.setHgap(10);
fpTestmoduleContainer.setVgap(10);
// fpTestmoduleContainer.setPrefSize(Control.USE_COMPUTED_SIZE, Control.USE_COMPUTED_SIZE);
List<TestModuleAttribute> testmoduleList = WSData.getTestingModuleList(appttribute.getApplication_id());
ArrayList<Label> listTestlbs = new ArrayList<Label>(testmoduleList.size());
System.out.println("testmoduleList.size()" + testmoduleList.size());
int i = 0;
for (TestModuleAttribute testmattribute : testmoduleList) {
listTestlbs.add(new Label());
listTestlbs.get(i).setText(testmattribute.getModule_name());
listTestlbs.get(i).setAlignment(Pos.CENTER);
listTestlbs.get(i).setTextAlignment(TextAlignment.CENTER);
listTestlbs.get(i).setWrapText(true);
listTestlbs.get(i).setPrefSize(Control.USE_COMPUTED_SIZE, Control.USE_COMPUTED_SIZE);
listTestlbs.get(i).setId(testmattribute.getFxnode_css());
Image imgInstalled = new Image(getClass().getResourceAsStream("/upgradeworkbench/View/Icons/ok.png"));
listTestlbs.get(i).setGraphic(new ImageView(imgInstalled));
listTestlbs.get(i).setContentDisplay(ContentDisplay.BOTTOM);
Tooltip testtp = new Tooltip();
testtp.setText("Total No. Of test Cases :" + testmattribute.getTest_case());
testtp.setWrapText(true);
listTestlbs.get(i).setTooltip(testtp);
addModuleMouseClickListener(listTestlbs.get(i), testmattribute.getModule_name(), testmattribute.getFxnode_css(), testmattribute.getTest_case());
i = i + 1;
}
s = new ScrollPane();
s.setContent(fpTestmoduleContainer);
fpTestmoduleContainer.setPrefWidth(1500);
fpTestmoduleContainer.getChildren().addAll(listTestlbs);
//appTestTitledPane[app].setContent(fpTestmoduleContainer[app]);
listTestlbs.clear();
app = app + 1;
}
appareaTestmoduleContainer.getPanes().addAll(appTestTitledPane);
appareaTestmoduleContainer.setExpandedPane(appTestTitledPane[0]);
testTab.setText("Test Cases Wizard");
testTab.setText("Testing Application Foot Print");
//mainTab.setClosable(true);
// testTab.getContent().setVisible(true);
HBox hb = new HBox();
testTab.setContent(s);
}
}
}
Image of slider working as expected - before sliding
After sliding (without scrollbar) the 4 modules get to the next row as space is occupied by the slider
After adding scrollpane and embedding flowpane inside it. Slider overlaps the flowpane contents as shown
I want to know why the scrollbar causing issue in auto adjustment of contents inside the flowpane and how can i fix it ?
Here the width of your scrollpane is fixed. And then so is the width of the flow pane.You need to change the size of your scrollpane so that its content gets reset.
Use the following code.
scroll[app].setFitToHeight(true);
scroll[app].setFitToWidth(true);
This code will set the size of scrollpane according to the view. The flowpane will also adjust accordingly then.

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