I'm working on this example of simple panel.
public class MainApp extends Application {
private static BorderPane bp;
#Override
public void start(Stage stage) throws Exception {
FlowPane flow = new FlowPane();
flow.setPadding(new Insets(50, 5, 5, 5));
flow.setVgap(15);
flow.setHgap(15);
flow.setAlignment(Pos.CENTER);
HBox thb = new HBox();
thb.setPadding(new Insets(13, 13, 13, 13));
thb.setStyle("-fx-background-color: gray");
DropShadow ds = new DropShadow();
ds.setOffsetY(3.0);
ds.setOffsetX(3.0);
ds.setColor(Color.GRAY);
bp = new BorderPane();
bp.setEffect(ds);
bp.setPrefSize(600, 500);
bp.setMaxSize(600, 500);
bp.setStyle("-fx-background-color: white;");
bp.setTop(thb);
flow.getChildren().add(bp);
Scene scene = new Scene(flow, 1200, 800);
scene.getStylesheets().add("/styles/Styles.css");
stage.setScene(scene);
stage.show();
}
public static void main(String[] args) {
launch(args);
}
}
Can you help me to create button which minimizes the panel. I want when I click the button to shrink the size of the panel.
I don't understand basically what you trying to do. I think this might help you.
final Button btnmin = new Button();
flow.getChildren().add(btnmini)
btnmin.setGraphic(new ImageView(new Image(getClass().getResourceAsStream("mini.gif"))));
btnmin.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent t) {
Stage stage = (Stage)btnmin.getScene().getWindow();
stage.setIconified(true);
}
});
Related
I'am new to JavaFX, so my coding is not the best. My programme has one Stage with 2 different Scenes. For a better overview I have created a new class for the second Scene. From this second Scene I want to go back to first one, using a button. The method: primaryStage.setScene(scene) is not working and I dont know why. Can someone please help me? :)
public class Main extends Application {
#Override
public void start(Stage primaryStage) {
try {
GridPane primarygridpane = new GridPane();
Scene scene = new Scene(primarygridpane,400,400);
...
primaryStage.setScene(scene);
primaryStage.show();
} catch(Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
launch(args);
}
}
public class Harnwegsinfektion {
public static void create (Stage primaryStage){
GridPane secondarygridpane = new GridPane();
Scene scene2 = new Scene(secondarygridpane,400,400);
buttonBack.setOnAction(new EventHandler<ActionEvent>(){
#Override
public void handle(ActionEvent e) {
primaryStage.setScene(scene);
}
});
primaryStage.setScene(scene2);
primaryStage.show();
}
}
The problem is that your scene variable is named scene2 and you are calling setScene() with scene.
I don't really know when and where create() is called, but if you want to go back to the first scene from the button, you have to save the original one before switching :
public static void create (Stage primaryStage){
GridPane secondarygridpane = new GridPane();
Scene scene2 = new Scene(secondarygridpane,400,400);
Scene originalScene=primaryStage.getScene(); //save the previous scene
buttonBack.setOnAction(new EventHandler<ActionEvent>(){
#Override
public void handle(ActionEvent e) {
primaryStage.setScene(originalScene); //go back to the previous scene
}
});
primaryStage.setScene(scene2);
primaryStage.show();
}
#Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle(" ");
RadioButton rbRed = new RadioButton("Red");
RadioButton rbGreen = new RadioButton("Green");
ToggleGroup group = new ToggleGroup();
rbRed.setToggleGroup(group);
rbGreen.setToggleGroup(group);
HBox hbox = new HBox(rbRed, rbGreen);
hbox.setAlignment(Pos.CENTER);
rbRed.setOnAction(e -> {
if (rbRed.isSelected()) {
hbox.setBackground(Color.RED);
}
});
rbGreen.setOnAction(e -> {
if (rbGreen.isSelected()) {
hbox.setBackground(Color.GREEN);
}
});
Scene scene = new Scene(hbox, 400, 100);
primaryStage.setScene(scene);
primaryStage.show();
}
public static void main(String[] args) {
Application.launch(args);
}
}
this is my code. when clicked on the radio button, it should change the background color.
You need a background not just a color like so
public class Main extends Application {
#Override
public void start(Stage stage) {
stage.setTitle(" ");
RadioButton rbRed = new RadioButton("Red");
RadioButton rbGreen = new RadioButton("Green");
ToggleGroup group = new ToggleGroup();
rbRed.setToggleGroup(group);
rbGreen.setToggleGroup(group);
HBox hbox = new HBox(rbRed, rbGreen);
hbox.setAlignment(Pos.CENTER);
rbRed.setOnAction(e -> {
if (rbRed.isSelected()) {
hbox.setBackground(buildBackground(Color.RED));
}
});
rbGreen.setOnAction(e -> {
if (rbGreen.isSelected()) {
hbox.setBackground(buildBackground(Color.GREEN));
}
});
Scene scene = new Scene(hbox, 400, 100);
stage.setScene(scene);
stage.show();
}
private Background buildBackground(Color color){
return new Background(new BackgroundFill(color,new CornerRadii(0),new Insets(0)));
}
public static void main(String[] args) { launch(args); }
}
I want to add Scrollbar to this code. How can it possible- If possible explain it . i tried but not succeed .
public void start(Stage primaryStage) {
BorderPane border=new BorderPane();
GridPane gridpane=new GridPane();
HBox hbox=new HBox();
Button btn=new Button("btn");
hbox.getChildren().add(btn);
btn.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent e)
{
Label text=new Label("hello");
gridpane.add(text, 0, b);
b++;
}
}
);
border.setTop(hbox);
border.setLeft(gridpane);
Scene scene=new Scene(border,460,250);
primaryStage.setScene(scene);
primaryStage.show();
}
Instead of
border.setLeft(gridPane);
do
border.setLeft(new ScrollPane(gridPane));
Here is my code, I'm trying to load a splash screen image with transparent background before my main stage starts. They come almost at the same time, but the big problem is I get a grey rectangle before anything else: .
Here is the code:
public class Menu extends Application {
private Pane splashLayout;
private Stage mainStage;
private ImageView splash;
// Creating a static root to pass to ScreenControl
private static BorderPane root = new BorderPane();
public void start(Stage splashStage) throws IOException {
final Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
this.splash = new ImageView(new Image(getClass().getResource("/splash.png").toString()));
splashStage.initStyle(StageStyle.TRANSPARENT);
showSplash(splashStage, screenSize);
// Constructing our scene using the static root
root.setCenter(new ScrollPane);
Scene scene = new Scene(root, screenSize.getWidth(), screenSize.getHeight());
showMainStage(scene);
if (splashStage.isShowing()) {
mainStage.setIconified(false);
splashStage.toFront();
FadeTransition fadeSplash = new FadeTransition(Duration.seconds(1.5), splashLayout);
fadeSplash.setDelay(Duration.seconds(3.5));
fadeSplash.setFromValue(1.0);
fadeSplash.setToValue(0.0);
fadeSplash.setOnFinished(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent actionEvent) {
splashStage.hide();
}
});
fadeSplash.play();
}
}
private void showMainStage(Scene scene) {
mainStage = new Stage(StageStyle.DECORATED);
mainStage.setTitle("book-depot");
mainStage.getIcons().add(new Image(getClass().getResourceAsStream("/icon.png")));
mainStage.setScene(scene);
mainStage.show();
}
private void showSplash(Stage splashStage, Dimension screenSize) {
splashLayout = new StackPane();
splashLayout.setStyle("-fx-background-color: transparent;");
splashLayout.getChildren().add(splash);
Scene splashScene = new Scene(splashLayout, 690, 590);
splashScene.setFill(Color.TRANSPARENT);
splashStage.setScene(splashScene);
splashStage.show();
}
public void mainGui(String[] args) {
launch(args);
}
}
Am I doing something wrong or I really can't get a transparent background?
This is what it looks like when also the other stage loads up, but I'd like it to work like that even before the main stage loads, or at least I'd want to remove the grey rectangle you can see in the other screenshot
The grey background is your "mainStage" since you are showing splash and main stages at the same time. At the beginning while showing the splash stage you can just init (not show) the main stage and show it later when the animation finishes:
public class ModifiedMenu extends Application
{
private Pane splashLayout;
private Stage mainStage;
private ImageView splash;
// Creating a static root to pass to ScreenControl
private static BorderPane root = new BorderPane();
public void start(Stage splashStage) throws IOException {
final Dimension2D screenSize = Toolkit.getDefaultToolkit().getScreenSize();
this.splash = new ImageView(new Image(getClass().getResource("/splash.png").toString()));
splashStage.initStyle(StageStyle.TRANSPARENT);
showSplash(splashStage, screenSize);
// Constructing our scene using the static root
root.setCenter(new ScrollPane());
Scene scene = new Scene(root, screenSize.getWidth(), screenSize.getHeight());
initMainStage(scene);
if (splashStage.isShowing()) {
splashStage.toFront();
FadeTransition fadeSplash = new FadeTransition(Duration.seconds(1.5), splashLayout);
fadeSplash.setDelay(Duration.seconds(3.5));
fadeSplash.setFromValue(1.0);
fadeSplash.setToValue(0.0);
fadeSplash.setOnFinished(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent actionEvent) {
splashStage.hide();
mainStage.show();
}
});
fadeSplash.play();
}
}
private void initMainStage(Scene scene) {
mainStage = new Stage(StageStyle.DECORATED);
mainStage.setTitle("book-depot");
mainStage.getIcons().add(new Image(getClass().getResourceAsStream("/icon.png")));
mainStage.setScene(scene);
}
private void showSplash(Stage splashStage, Dimension2D screenSize) {
splashLayout = new StackPane();
splashLayout.setStyle("-fx-background-color: transparent;");
splashLayout.getChildren().add(splash);
Scene splashScene = new Scene(splashLayout, 690, 590);
splashScene.setFill(Color.TRANSPARENT);
splashStage.setScene(splashScene);
splashStage.show();
}
public void mainGui(String[] args) {
launch(args);
}
}
I want to show Colorpicker from Context Menu:
ColorPicker colorssPicker = new ColorPicker();
final MenuItem resizeItem = new MenuItem("Option 1");
resizeItem.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
}
});
final MenuItem resizesItem = new MenuItem();
resizesItem.setGraphic(colorssPicker);
resizesItem.setOnAction(new EventHandler<ActionEvent>()
{
#Override
public void handle(ActionEvent event)
{
}
});
final ContextMenu menu = new ContextMenu();
menu.getItems().addAll(resizeItem, resizesItem);
sc.setOnMouseClicked(new EventHandler<MouseEvent>()
{
#Override
public void handle(MouseEvent event)
{
if (MouseButton.SECONDARY.equals(event.getButton()))
{
menu.show(primaryStage, event.getScreenX(), event.getScreenY());
}
}
});
This code is not working, I can't see Colorpicker when I click on the Contextmenu "Choose Color". What is the proper way to implement this?
I get this result:
This snippet will let you show a ColorPicker control embedded into a ContextMenu.
You can style it so it doesn't look like a button, by setting its backgound color.
#Override
public void start(Stage primaryStage) {
StackPane root = new StackPane();
final ColorPicker colorssPicker = new ColorPicker();
colorssPicker.setStyle("-fx-background-color: white;");
final MenuItem otherItem = new MenuItem(null, new Label("Other item"));
final MenuItem resizeItem = new MenuItem(null,colorssPicker);
resizeItem.setOnAction(new EventHandler<ActionEvent>(){
#Override
public void handle(ActionEvent event)
{
root.setBackground(new Background(new BackgroundFill(colorssPicker.getValue(),null,null)));
}
});
final ContextMenu menu = new ContextMenu(otherItem,resizeItem);
Scene scene = new Scene(root, 300, 250);
scene.setOnMouseClicked(new EventHandler<MouseEvent>(){
#Override
public void handle(MouseEvent event){
if (MouseButton.SECONDARY.equals(event.getButton())){
menu.show(primaryStage, event.getScreenX(), event.getScreenY());
}
}
});
primaryStage.setScene(scene);
primaryStage.show();
}