Java Code Examples for javafx.scene.layout.Region#setPrefWidth()

public static void setHBoxPosition(Region element, double width, double height, Insets margin){

        if(width == -1){
            HBox.setHgrow(element, Priority.ALWAYS);
            element.setMaxWidth(Double.MAX_VALUE);
        }else if(width != 0){
            element.setPrefWidth(width);
            element.minWidthProperty().bind(new SimpleDoubleProperty(width));
        }
        if(height == -1){
            VBox.setVgrow(element, Priority.ALWAYS);
        }else if(height != 0){
            element.setPrefHeight(height);
            element.minHeightProperty().bind(new SimpleDoubleProperty(height));
        }
        HBox.setMargin(element, margin);
    }
 

public static void setVBoxPosition(Region element, double width, double height, Insets margin){

        if(width == -1){
            HBox.setHgrow(element, Priority.ALWAYS);
            element.setMaxWidth(Double.MAX_VALUE);
        }else if(width != 0){
            element.setPrefWidth(width);
            element.minWidthProperty().bind(new SimpleDoubleProperty(width));
        }
        if(height == -1){
            VBox.setVgrow(element, Priority.ALWAYS);
        }else if(height != 0){
            element.setPrefHeight(height);
            element.minHeightProperty().bind(new SimpleDoubleProperty(height));
        }
        VBox.setMargin(element, margin);
    }
 

@Override public void start(Stage stage) {
    Region spacer = new Region();
    spacer.setPrefWidth(30);
    GridPane pane = new GridPane();
    pane.add(hourLeft, 0, 0);
    pane.add(hourRight, 1, 0);
    pane.add(spacer, 2, 0);
    pane.add(minLeft, 3, 0);
    pane.add(minRight,4, 0);
    pane.setHgap(10);
    pane.setPadding(new Insets(20, 20, 25, 20));

    Scene scene = new Scene(pane);

    stage.setTitle("Medusa Clock of Clocks");
    stage.setScene(scene);
    stage.show();

    timer.start();

    // Calculate number of nodes
    calcNoOfNodes(pane);
    System.out.println(noOfNodes + " Nodes in SceneGraph");
}
 

public void addRow(RadioButton radio, Region field, Text helpIcon) {
    requireNotNullArg(radio, "Cannot add a null radio");
    requireNotNullArg(field, "Cannot add a null field");
    GridPane.setValignment(radio, VPos.BOTTOM);
    GridPane.setValignment(field, VPos.BOTTOM);
    GridPane.setHalignment(radio, HPos.LEFT);
    GridPane.setHalignment(field, HPos.LEFT);
    GridPane.setFillWidth(field, true);
    field.setPrefWidth(300);
    field.setDisable(true);
    radio.selectedProperty().addListener((o, oldVal, newVal) -> {
        field.setDisable(!newVal);
        if (newVal) {
            field.requestFocus();
        }
    });
    radio.setToggleGroup(group);
    add(radio, 0, rows);
    add(field, 1, rows);
    if (nonNull(helpIcon)) {
        add(helpIcon, 2, rows);
    }
    rows++;

}
 

private static void dragEast(MouseEvent event, Wrapper<Point2D> mouseLocation, Region region, double handleRadius) {
	final double deltaX = event.getSceneX() - mouseLocation.value.getX();
	final double newMaxX = region.getLayoutX() + region.getWidth() + deltaX;
	if(newMaxX >= region.getLayoutX() && newMaxX <= region.getParent().getBoundsInLocal().getWidth() - handleRadius) {
		region.setPrefWidth(region.getPrefWidth() + deltaX);
	}
}
 

private static void dragWest(MouseEvent event, Wrapper<Point2D> mouseLocation, Region region, double handleRadius) {
	final double deltaX = event.getSceneX() - mouseLocation.value.getX();
	final double newX = region.getLayoutX() + deltaX;
	if(newX != 0 && newX <= region.getParent().getBoundsInLocal().getWidth() - handleRadius) {
		region.setLayoutX(newX);
		region.setPrefWidth(region.getPrefWidth() - deltaX);
	}
}
 

/** @param width Desired width
 *  @return 'Strut' that occupies requested width
 */
public static Node createStrut(int width)
{
    final Region sep = new Region();
    sep.setPrefWidth(width);
    sep.setMinWidth(Region.USE_PREF_SIZE);
    sep.setMaxWidth(Region.USE_PREF_SIZE);
    return sep;
}
 

public VBox getRow() {
  Region spacer = new Region();
  spacer.setMinWidth(20);

  VBox vb = new VBox(5);
  HBox hb = new HBox(10);
  HBox hbCheckbox = new HBox(10);

  valueText.setText(Settings.getSetting("var-" + name + "-value"));
  value = Settings.getSetting("var-" + name + "-value");
  setSelection(Settings.getSetting("var-" + name + "-selection"));

  hb.getChildren().addAll(labelElement,
          buttonYes, buttonConst, buttonNo,
          spacer, valueText, new Region());
  vb.getChildren().add(hb);

  if (name.equals("date")) {
    Region r = new Region();
    r.setMaxWidth(622);
    r.setPrefWidth(622);
    r.setMinWidth(420);
    r.setMinHeight(30);

    CheckBox checkbox = new CheckBox(Util.text("choose-columns-exif"));
    checkbox.setMaxWidth(500);
    checkbox.setPrefWidth(500);
    checkbox.setMinWidth(305);
    checkbox.setSelected(Settings.getSetting("exifDate").equals("true"));
    checkbox.setOnAction((ActionEvent e) -> {
      Settings.setSetting("exifDate", checkbox.isSelected() ? "true" : "");
    });

    hbCheckbox.getChildren().addAll(r, checkbox);
    vb.getChildren().add(hbCheckbox);
  }

  return vb;
}
 

/**
 * Creates a "Scale Pane", which is a pane that scales as it resizes, instead of reflowing layout
 * like a normal pane. It can be used to create an effect like a presentation slide. There is no
 * attempt to preserve the aspect ratio.
 * <p>
 * If the region has an explicitly set preferred width and height, those are used unless
 * override is set true.
 * <p>
 * If the region already has a parent, the returned pane will replace it via the
 * {@link #replaceComponent(Node, Node)} method. The Region's parent must be a Pane in this case.
 *
 * @param region   non-null Region
 * @param w        default width, used if the region's width is calculated
 * @param h        default height, used if the region's height is calculated
 * @param override if true, w,h is the region's "100%" size even if the region has an explicit
 *                 preferred width and height set.
 *
 * @return the created StackPane, with preferred width and height set based on size determined by
 *         w, h, and override parameters.
 */
public static StackPane createScalePane( Region region, double w, double h, boolean override ) {
	//If the Region containing the GUI does not already have a preferred width and height, set it.
	//But, if it does, we can use that setting as the "standard" resolution.
	if ( override || region.getPrefWidth() == Region.USE_COMPUTED_SIZE )
		region.setPrefWidth( w );
	else
		w = region.getPrefWidth();

	if ( override || region.getPrefHeight() == Region.USE_COMPUTED_SIZE )
		region.setPrefHeight( h );
	else
		h = region.getPrefHeight();

	StackPane ret = new StackPane();
	ret.setPrefWidth( w );
	ret.setPrefHeight( h );
	if ( region.getParent() != null )
		replaceComponent( region, ret );

	//Wrap the resizable content in a non-resizable container (Group)
	Group group = new Group( region );
	//Place the Group in a StackPane, which will keep it centered
	ret.getChildren().add( group );

	//Bind the scene's width and height to the scaling parameters on the group
	group.scaleXProperty().bind( ret.widthProperty().divide( w ) );
	group.scaleYProperty().bind( ret.heightProperty().divide( h ) );

	return ret;
}
 

public void setFalseLeftData(){
    Region spacer = new Region();
    spacer.setPrefWidth(30);
    getNode().getChildren().set(0, spacer);
}
 

private void populateMenu(Map<DocumentType, List<SearchResult>> results) {
    contextMenu.getItems().clear();
    for (Map.Entry<DocumentType, List<SearchResult>> entry : results.entrySet()) {
        boolean first = true;
        for(SearchResult result: entry.getValue()) {
            final SearchResult sr = result;
            final HBox hBox = new HBox();
            hBox.setFillHeight(true);
            Label itemLabel = new Label(result.getName());
            itemLabel.getStyleClass().add("item-label");
            if (first) {
                first = false;
                Label groupLabel = new Label(result.getDocumentType().getPluralDisplayName());
                groupLabel.getStyleClass().add("group-label");
                groupLabel.setAlignment(Pos.CENTER_RIGHT);
                groupLabel.setMinWidth(USE_PREF_SIZE);
                groupLabel.setPrefWidth(70);
                hBox.getChildren().addAll(groupLabel,itemLabel);
            } else {
                Region spacer = new Region();
                spacer.setMinWidth(USE_PREF_SIZE);
                spacer.setPrefWidth(70);
                hBox.getChildren().addAll(spacer,itemLabel);
            }
            // create a special node for hiding/showing popup content
            final Region popRegion = new Region();
            popRegion.getStyleClass().add("search-menu-item-popup-region");
            popRegion.setPrefSize(10, 10);
            hBox.getChildren().add(popRegion);
            final String name = (result.getDocumentType() == DocumentType.SAMPLE) ? result.getName() :
                    result.getPackageName()+
                            ((result.getClassName() != null) ? "."+result.getClassName() : "") +
                            ((result.getName() != null) ? "."+result.getName() : "");
            final String shortDescription = (result.getShortDescription().length() == 160) ? result.getShortDescription() +"..." : result.getShortDescription();
            popRegion.opacityProperty().addListener(new ChangeListener<Number>() {
                @Override public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
                    Platform.runLater( new Runnable() { // TODO runLater used here as a workaround for RT-14396
                        @Override public void run() {
                            if (popRegion.getOpacity() == 1) {
                                infoName.setText(name);
                                infoDescription.setText(shortDescription);
                                Point2D hBoxPos = hBox.localToScene(0, 0);
                                extraInfoPopup.show(getScene().getWindow(),
                                    hBoxPos.getX() + contextMenu.getScene().getX() + contextMenu.getX() - infoBox.getPrefWidth() - 10,
                                    hBoxPos.getY() + contextMenu.getScene().getY() + contextMenu.getY() - 27
                                );
                            }
                        }
                    });
                }
            });
            // create menu item
            CustomMenuItem menuItem = new CustomMenuItem(hBox, true);
            menuItem.getStyleClass().add("search-menu-item");
            contextMenu.getItems().add(menuItem);
            // handle item selection
            menuItem.setOnAction(new EventHandler<ActionEvent>() {
                @Override public void handle(ActionEvent actionEvent) {
                    ///System.out.println("SearchBox.handle menuItem.setOnAction");
                    Ensemble2.getEnsemble2().goToPage(sr.getEnsemblePath(),true);
                }
            });
        }
    }
}
 

private void sizeButton(Node btn, double pref) {
    if (btn instanceof Region) {
        Region regionBtn = (Region) btn;
        regionBtn.setPrefWidth(pref);
    }
}
 

private void populateMenu(Map<DocumentType, List<SearchResult>> results) {
    contextMenu.getItems().clear();
    for (Map.Entry<DocumentType, List<SearchResult>> entry : results.entrySet()) {
        boolean first = true;
        for(SearchResult result: entry.getValue()) {
            final SearchResult sr = result;
            final HBox hBox = new HBox();
            hBox.setFillHeight(true);
            Label itemLabel = new Label(result.getName());
            itemLabel.getStyleClass().add("item-label");
            if (first) {
                first = false;
                Label groupLabel = new Label(result.getDocumentType().getPluralDisplayName());
                groupLabel.getStyleClass().add("group-label");
                groupLabel.setAlignment(Pos.CENTER_RIGHT);
                groupLabel.setMinWidth(USE_PREF_SIZE);
                groupLabel.setPrefWidth(70);
                hBox.getChildren().addAll(groupLabel,itemLabel);
            } else {
                Region spacer = new Region();
                spacer.setMinWidth(USE_PREF_SIZE);
                spacer.setPrefWidth(70);
                hBox.getChildren().addAll(spacer,itemLabel);
            }
            // create a special node for hiding/showing popup content
            final Region popRegion = new Region();
            popRegion.getStyleClass().add("search-menu-item-popup-region");
            popRegion.setPrefSize(10, 10);
            hBox.getChildren().add(popRegion);
            final String name = (result.getDocumentType() == DocumentType.SAMPLE) ? result.getName() :
                    result.getPackageName()+
                            ((result.getClassName() != null) ? "."+result.getClassName() : "") +
                            ((result.getName() != null) ? "."+result.getName() : "");
            final String shortDescription = (result.getShortDescription().length() == 160) ? result.getShortDescription() +"..." : result.getShortDescription();
            popRegion.opacityProperty().addListener(new ChangeListener<Number>() {
                @Override public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) {
                    Platform.runLater( new Runnable() { // TODO runLater used here as a workaround for RT-14396
                        @Override public void run() {
                            if (popRegion.getOpacity() == 1) {
                                infoName.setText(name);
                                infoDescription.setText(shortDescription);
                                Point2D hBoxPos = hBox.localToScene(0, 0);
                                extraInfoPopup.show(getScene().getWindow(),
                                    hBoxPos.getX() + contextMenu.getScene().getX() + contextMenu.getX() - infoBox.getPrefWidth() - 10,
                                    hBoxPos.getY() + contextMenu.getScene().getY() + contextMenu.getY() - 27
                                );
                            }
                        }
                    });
                }
            });
            // create menu item
            CustomMenuItem menuItem = new CustomMenuItem(hBox, true);
            menuItem.getStyleClass().add("search-menu-item");
            contextMenu.getItems().add(menuItem);
            // handle item selection
            menuItem.setOnAction(new EventHandler<ActionEvent>() {
                @Override public void handle(ActionEvent actionEvent) {
                    ///System.out.println("SearchBox.handle menuItem.setOnAction");
                    Ensemble2.getEnsemble2().goToPage(sr.getEnsemblePath(),true);
                }
            });
        }
    }
}
 

private Node getHSpacer(double width) {
    Region spacer = new Region();
    spacer.setPrefWidth(width);
    HBox.setHgrow(spacer, Priority.NEVER);
    return spacer;
}
 

private Node getHSpacer(double width) {
    Region spacer = new Region();
    spacer.setPrefWidth(width);
    HBox.setHgrow(spacer, Priority.NEVER);
    return spacer;
}