I'm keen on svg and would like to put many of them in my User Interface. But I have a problem with the size of svg. I would like to load any svg I retrieve as a parameter and resize it dynamically to the size of the control.
All the examples I found are resize thanks to the "rescale" method (as found in the following article JavaFX: How to resize button containing svg image.
But since I have no idea of the size of the original svg I don't know what factor to apply in the rescale method.
So, my question is how do I generify the following code:
import javafx.application.Application;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.HBox;
import javafx.scene.shape.SVGPath;
import javafx.stage.Stage;
public class Main extends Application{
private final int MIN_BUTTON_SIZE = 10;
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage primaryStage) throws Exception {
HBox root = new HBox();
root.setAlignment(Pos.CENTER);
SVGPath svg = new SVGPath();
svg.setContent("M87.5,50.002C87.5,29.293,70.712,12.5,50,12.5c-20.712,0-37.5,16.793-37.5,37.502C12.5,70.712,29.288,87.5,50,87.5" +
"c6.668,0,12.918-1.756,18.342-4.809c0.61-0.22,1.049-0.799,1.049-1.486c0-0.622-0.361-1.153-0.882-1.413l0.003-0.004l-6.529-4.002" +
"L61.98,75.79c-0.274-0.227-0.621-0.369-1.005-0.369c-0.238,0-0.461,0.056-0.663,0.149l-0.014-0.012" +
"C57.115,76.847,53.64,77.561,50,77.561c-15.199,0-27.56-12.362-27.56-27.559c0-15.195,12.362-27.562,27.56-27.562" +
"c14.322,0,26.121,10.984,27.434,24.967C77.428,57.419,73.059,63,69.631,63c-1.847,0-3.254-1.23-3.254-3.957" +
"c0-0.527,0.176-1.672,0.264-2.111l4.163-19.918l-0.018,0c0.012-0.071,0.042-0.136,0.042-0.21c0-0.734-0.596-1.33-1.33-1.33h-7.23" +
"c-0.657,0-1.178,0.485-1.286,1.112l-0.025-0.001l-0.737,3.549c-1.847-3.342-5.629-5.893-10.994-5.893" +
"c-10.202,0-19.877,9.764-19.877,21.549c0,8.531,5.101,14.775,13.632,14.775c4.75,0,9.587-2.727,12.665-7.035l0.088,0.527" +
"c0.615,3.342,9.843,7.576,15.121,7.576c7.651,0,16.617-5.156,16.617-19.932l-0.022-0.009C87.477,51.13,87.5,50.569,87.5,50.002z" +
"M56.615,56.844c-1.935,2.727-5.101,5.805-9.763,5.805c-4.486,0-7.212-3.166-7.212-7.738c0-6.422,5.013-12.754,12.049-12.754" +
"c3.958,0,6.245,2.551,7.124,4.486L56.615,56.844z");
Button buttonWithGraphics = new Button();
buttonWithGraphics.setGraphic(svg);
// Bind the Image scale property to the buttons size
svg.scaleXProperty().bind(buttonWithGraphics.widthProperty().divide(100));
svg.scaleYProperty().bind(buttonWithGraphics.heightProperty().divide(100));
// Declare a minimum size for the button
buttonWithGraphics.setMinSize(MIN_BUTTON_SIZE, MIN_BUTTON_SIZE);
root.getChildren().addAll(buttonWithGraphics);
root.layoutBoundsProperty().addListener((observableValue, oldBounds, newBounds) -> {
double size = Math.max(MIN_BUTTON_SIZE, Math.min(newBounds.getWidth(), newBounds.getHeight()));
buttonWithGraphics.setPrefSize(size, size);
}
);
Scene scene = new Scene(root);
primaryStage.setScene(scene);
primaryStage.show();
}
I guess this is linked with the following lines:
svg.scaleXProperty().bind(buttonWithGraphics.widthProperty().divide(100));
create a resizable canvas, you can find details here
canvas can be scaled, and also graphic context can also be scale
var gc = canvas.getGraphicsContext2D();
gc.scale(0.1, 0.1);
use gc to draw the svg path, line, circle, etc.
sample code here:
var canvas = new ResizableCanvas() {
#Override
public void draw() {
var gc = getGraphicsContext2D();
gc.save();//make sure you save the status here and restore after all operations are finished
//System.out.print(getWidth()+" ");
//System.out.println(getHeight());
var width = getWidth();
var height = getHeight();
gc.clearRect(0,0,width, height);
gc.scale(width/512.002, height/512.002);
gc.beginPath();
gc.setFill(Color.web("#2D4961"));
gc.appendSVGPath("""
M399.994,0H112.008C94.337,0,80.009,14.327,80.009,31.999v342.624
c0.08,16.159,8.288,31.191,21.839,39.998l145.433,94.796c5.304,3.448,12.135,3.448,17.439,0l145.433-94.556
c13.551-8.808,21.759-23.839,21.839-39.998V31.999C431.993,14.327,417.665,0,399.994,0z M399.994,68.477
c-6.872-6.24-15.399-10.352-24.559-11.839c-1.496-9.2-5.64-17.759-11.919-24.639h36.478V68.477z M148.486,31.999
c-6.264,6.864-10.408,15.391-11.919,24.559c-9.168,1.512-17.695,5.656-24.559,11.919V31.999H148.486z M256.001,476.858
l-26.479-17.199c11.047-4.6,20.327-12.623,26.479-22.879c6.152,10.256,15.431,18.279,26.479,22.879L256.001,476.858z
M399.994,374.622c0.008,5.424-2.728,10.48-7.28,13.439l-91.756,59.917c-20.895-1.592-37.022-19.039-36.958-39.998
c0-4.416-3.584-8-8-8s-8,3.584-8,8c0.064,20.959-16.063,38.406-36.958,39.998l-91.756-59.917c-4.552-2.96-7.288-8.016-7.28-13.439
V103.995c0-17.671,14.327-31.998,31.998-31.998c4.416,0,8-3.584,8-8c0-17.671,14.327-31.999,31.999-31.999h143.993
c17.671,0,31.999,14.327,31.999,31.999c0,4.416,3.584,8,8,8c17.671,0,31.999,14.327,31.999,31.998L399.994,374.622L399.994,374.622z""");
gc.fill();
gc.setFill(Color.web("#44637F"));
gc.beginPath();
gc.appendSVGPath("""
M80.009,31.999v271.987l0,0c8.84,0,15.999-7.16,15.999-15.999V31.999
c0-8.84,7.16-15.999,15.999-15.999h271.987c8.84,0,15.999-7.16,15.999-15.999H112.008C94.329,0,80.009,14.327,80.009,31.999z""");
gc.fill();
gc.setFill(Color.web("#123247"));
gc.beginPath();
gc.appendSVGPath("""
M410.154,414.861c13.551-8.808,21.759-23.839,21.839-39.998V55.997l0,0
c-8.84,0-15.999,7.16-15.999,15.999v304.466c0,8.04-4.024,15.551-10.719,19.999L269.28,487.097
c-8.304,5.56-13.287,14.887-13.279,24.879l0,0c3.096,0.008,6.12-0.88,8.72-2.56L410.154,414.861z""");
gc.fill();
gc.restore();
}
};
canvas.widthProperty().bind(canvas.heightProperty());
canvas.heightProperty().bind(stage.getScene().heightProperty().multiply(0.1));
The solution above tries to do it dynamically, although (as you said) fails to do it in respect to the original SvgPath size.
I would recommend doing it like that:
double size = 30;
svg.setScaleX(size / svg.boundsInLocalProperty().get().getWidth());
svg.setScaleY(size / svg.boundsInLocalProperty().get().getHeight());
This will scale your SvgPath to size.
So I have a TextArea and as the user pastes paragraphs into it, or just writes in it, I want it to expand vertically to reveal all the available text. I.e. not to use a scrollbar in the text field itself... much like what happens on many web pages. Many users, myself included, don't like to be forced to edit in a small window. Exactly how Facebook status updates box works.
I've tried
myTextArea.autoSize()
wrapped in an
myTextArea.textProperty().addListener(new ChangeListener()....);
but that doesn't work. I think it's happy autosizing to its current size.
The left, right & top anchors are set to it's parent AnchorPane. I've tried it with the bottom attached and not attached. Ideally I'd like to grow the anchor pane as the textarea grows.
I don't mind reading the TextProperty and calculating a trigger size which I set myself... but this seems a hacky approach IF there is already a best practise. The number of properties and sub objects of javafx is sufficiently daunting that it seems like a good point to ask the question here, rather than trying to figure out how many pixels the font/paragraphs etc are taking up.
Update:
So I thought maybe I was overthinking it, and all I needed to do was to switch the scrollbars off and the rest would happen. Alas, looking for available fields and methods for "scroll", "vertical", "vbar" comes up with nothing I can use. ScrollTopProperty looks like it's for something else.
The problem; the height of textArea is wanted to be grown or shrunk while its text is changing by either user's typing or copy-pasting. Here is another approach:
public class TextAreaDemo extends Application {
private Text textHolder = new Text();
private double oldHeight = 0;
#Override
public void start(Stage primaryStage) {
final TextArea textArea = new TextArea();
textArea.setPrefSize(200, 40);
textArea.setWrapText(true);
textHolder.textProperty().bind(textArea.textProperty());
textHolder.layoutBoundsProperty().addListener(new ChangeListener<Bounds>() {
#Override
public void changed(ObservableValue<? extends Bounds> observable, Bounds oldValue, Bounds newValue) {
if (oldHeight != newValue.getHeight()) {
System.out.println("newValue = " + newValue.getHeight());
oldHeight = newValue.getHeight();
textArea.setPrefHeight(textHolder.getLayoutBounds().getHeight() + 20); // +20 is for paddings
}
}
});
Group root = new Group(textArea);
Scene scene = new Scene(root, 300, 250);
primaryStage.setScene(scene);
primaryStage.show();
// See the explanation below of the following line.
// textHolder.setWrappingWidth(textArea.getWidth() - 10); // -10 for left-right padding. Exact value can be obtained from caspian.css
}
public static void main(String[] args) {
launch(args);
}
}
But it has a drawback; the textarea's height is changing only if there are line breaks (ie Enter keys) between multiple lines, if the user types long enough the text gets wrapped to multiple line but the height is not changing.
To workaround this drawback I added this line
textHolder.setWrappingWidth(textArea.getWidth() - 10);
after primaryStage.show();. It works well for long typings where user does not linebreaks. However this generates another problem. This problem occurs when the user is deleting the text by hitting "backspace". The problem occurs exactly when the textHolder height is changed and where the textArea's height is set to new value. IMO it maybe a bug, didn't observe deeper.
In both case the copy-pasting is handling properly.
Awaiting a better, i use this hacky solution.
lookup the vertical scrollbar of the textarea.
make it transparent
listen to its visible property
when the scrollbar become visible i add a row to the textarea.
The code:
import javafx.application.Application;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.ObservableList;
import javafx.geometry.Orientation;
import javafx.scene.Node;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.scene.control.ScrollBar;
import javafx.scene.control.TextArea;
import javafx.scene.layout.AnchorPane;
import javafx.stage.Stage;
public class GrowGrowTextArea extends Application {
public static void main(String[] args) {
launch(args);
}
#Override
public void start(Stage primaryStage) throws Exception {
AnchorPane root = new AnchorPane();
root.setStyle("-fx-padding:20;-fx-background-color:dodgerblue;");
final TextArea textArea = new TextArea();
AnchorPane.setTopAnchor(textArea, 10.0);
AnchorPane.setLeftAnchor(textArea, 10.0);
AnchorPane.setRightAnchor(textArea, 10.0);
root.getChildren().add(textArea);
primaryStage.setScene(new Scene(root, 400, 300));
primaryStage.show();
ScrollBar scrollBar = lookupVerticalScrollBar(textArea);
scrollBar.setOpacity(0.0);
scrollBar.visibleProperty().addListener(new ChangeListener<Boolean>() {
#Override
public void changed(ObservableValue<? extends Boolean> source,
Boolean wasVisible,
Boolean isVisible) {
if (isVisible) {
textArea.setPrefRowCount(textArea.getPrefRowCount() + 1);
textArea.requestLayout();
}
}
});
}
private ScrollBar lookupVerticalScrollBar(Node node) {
if (node instanceof ScrollBar && ((ScrollBar)node).getOrientation() == Orientation.VERTICAL) {
return (ScrollBar) node;
}
if (node instanceof Parent) {
ObservableList<Node> children = ((Parent) node).getChildrenUnmodifiable();
for (Node child : children) {
ScrollBar scrollBar = lookupVerticalScrollBar(child);
if (scrollBar != null) {
return scrollBar;
}
}
}
return null;
}
}
I had a similar problem with creating expanding TextArea. I was creating TextArea that looks like TextField and expand vertically every time when there is no more space in line.
I have tested all solutions that I could find on this topic on stack and other sources available. I found few good solutions but neither was good enough.
After many hours of fighting, I figured out this approach.
I extended TextArea class, override layoutChildren() method and add a listener on text height.
#Override
protected void layoutChildren() {
super.layoutChildren();
setWrapText(true);
addListenerToTextHeight();
}
private void addListenerToTextHeight() {
ScrollPane scrollPane = (ScrollPane) lookup(".scroll-pane");
scrollPane.setHbarPolicy(ScrollBarPolicy.NEVER);
scrollPane.setVbarPolicy(ScrollBarPolicy.NEVER);
StackPane viewport = (StackPane) scrollPane.lookup(".viewport");
Region content = (Region) viewport.lookup(".content");
Text text = (Text) content.lookup(".text");
text.textProperty().addListener(textHeightListener(text));
}
private InvalidationListener textHeightListener(Text text) {
return (property) -> {
// + 1 for little margin
double textHeight = text.getBoundsInLocal().getHeight() + 1;
//To prevent that our TextArena will be smaller than our TextField
//I used DEFAULT_HEIGHT = 18.0
if (textHeight < DEFAULT_HEIGHT) {
textHeight = DEFAULT_HEIGHT;
}
setMinHeight(textHeight);
setPrefHeight(textHeight);
setMaxHeight(textHeight);
};
}
I used some of the code found in the previous answers.
The growTextAreaIfNecessary method will increase the height of textArea until the scrollbar is not visible (limited to 20 lines in this example).
The problem with this approach is that the window needs to be redrawn several times until the perfect height is found.
private ScrollBar lookupVerticalScrollBar(Node node) {
if (node instanceof ScrollBar && ((ScrollBar) node).getOrientation() == Orientation.VERTICAL) {
return (ScrollBar) node;
}
if (node instanceof Parent) {
ObservableList<Node> children = ((Parent) node).getChildrenUnmodifiable();
for (Node child : children) {
ScrollBar scrollBar = lookupVerticalScrollBar(child);
if (scrollBar != null) {
return scrollBar;
}
}
}
return null;
}
private void growTextAreaIfNecessary(TextArea textArea) {
Platform.runLater(() -> {
ScrollBar lookupVerticalScrollBar = lookupVerticalScrollBar(textArea);
int prefRowCount = textArea.getPrefRowCount();
if (lookupVerticalScrollBar.isVisible() && prefRowCount < 20) {
textArea.setPrefRowCount(prefRowCount + 1);
System.out.println("increasing height to: " + (prefRowCount + 1));
growTextAreaIfNecessary(textArea);
}
});
}
I have tried many hacks, most of them had jitters while typing, this to me was the perfect result:
textArea.textProperty().addListener((obs,old,niu)->{
Text t = new Text(old+niu);
t.setFont(textArea.getFont());
StackPane pane = new StackPane(t);
pane.layout();
double height = t.getLayoutBounds().getHeight();
double padding = 20 ;
textArea.setMinHeight(height+padding);
});
I need to display one or more stage(s) within a TabPane by clicking on a button, such as the picture below
My target is to have a situation similar to JInternalFrame in Swing: how to accomplish this?
I am not able to add stage as children to the tab pane.
If this is not possible, what could be other solutions? I would like to have SplitPanes on the stage.
Thanks
PS I am using Win7, NetBeans 7.4 Beta (Build 201307092200), SceneBuilder 1.1
Edit: here is how it looks after some VFXWindows css changes
There's one thing worth notice: I have had to add a node ( in my case an HBox with prefSize(0,0), otherwise I can't move o resize the first window plotted, only the first one.
As last, I can't find a way to set windows full screen (maximize).
Here I put an example of windows from jfxtras inside of Tabs, I just modify the example.
import javafx.application.Application;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.Tab;
import javafx.scene.control.TabPane;
import javafx.stage.Stage;
import jfxtras.labs.scene.control.window.CloseIcon;
import jfxtras.labs.scene.control.window.MinimizeIcon;
import jfxtras.labs.scene.control.window.Window;
public class WindowInTab extends Application {
private static int counter = 1;
private void init(Stage primaryStage) {
TabPane tabPane = new TabPane();
Tab tab = generateTab("Windows...");
Tab anotherTab = generateTab("More Windows");
tabPane.getTabs().addAll(tab, anotherTab);
primaryStage.setResizable(true);
primaryStage.setScene(new Scene(tabPane, 600, 500));
}
private Tab generateTab(String tabName) {
Tab tab = new Tab(tabName);
final Group root = new Group();
tab.setContent(root);
Button button = new Button("Add more windows");
root.getChildren().addAll(button);
button.setOnAction(new EventHandler<ActionEvent>() {
#Override
public void handle(ActionEvent arg0) {
// create a window with title "My Window"
Window w = new Window("My Window#"+counter);
// set the window position to 10,10 (coordinates inside canvas)
w.setLayoutX(10);
w.setLayoutY(10);
// define the initial window size
w.setPrefSize(300, 200);
// either to the left
w.getLeftIcons().add(new CloseIcon(w));
// .. or to the right
w.getRightIcons().add(new MinimizeIcon(w));
// add some content
w.getContentPane().getChildren().add(new Label("Content... \nof the window#"+counter++));
// add the window to the canvas
root.getChildren().add(w);
}
});
return tab;
}
public double getSampleWidth() {return 600;}
public double getSampleHeight() {return 500;}
#Override
public void start(Stage primaryStage) throws Exception {
init(primaryStage);
primaryStage.show();
}
public static void main(String[] args) {launch(args);}
}
I don't know if this was exactly what you were looking for. Hope it helps!
I wanna create some loading dots like this:
At 0 second the text on the screen is: Loading.
At 1 second the text on the screen is: Loading..
At 2 second the text on the screen is: Loading...
At 3 second the text on the screen is: Loading.
At 4 second the text on the screen is: Loading..
At 5 second the text on the screen is: Loading...
and so forth until I close the Stage.
What is the best / easiest way to make that in JavaFX? I've been looking into animations/preloaders in JavaFX but that seems to complex when trying to achieve this.
I've been trying to create a loop between these three Text:
Text dot = new Text("Loading.");
Text dotdot = new Text("Loading..");
Text dotdotdot = new Text("Loading...");
but the screen stays static...
How can I make this work correctly in JavaFX? Thanks.
This question is similar to: javafx animation looping.
Here is a solution using the JavaFX animation framework - it seems pretty straight forward to me and not too complex.
import javafx.animation.*;
import javafx.application.Application;
import javafx.event.*;
import javafx.scene.*;
import javafx.scene.control.Label;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import javafx.util.Duration;
/** Simple Loading Text Animation. */
public class DotLoader extends Application {
#Override public void start(final Stage stage) throws Exception {
final Label status = new Label("Loading");
final Timeline timeline = new Timeline(
new KeyFrame(Duration.ZERO, new EventHandler() {
#Override public void handle(Event event) {
String statusText = status.getText();
status.setText(
("Loading . . .".equals(statusText))
? "Loading ."
: statusText + " ."
);
}
}),
new KeyFrame(Duration.millis(1000))
);
timeline.setCycleCount(Timeline.INDEFINITE);
VBox layout = new VBox();
layout.getChildren().addAll(status);
layout.setStyle("-fx-background-color: cornsilk; -fx-padding: 10;");
stage.setScene(new Scene(layout, 50, 35));
stage.show();
timeline.play();
}
public static void main(String[] args) throws Exception { launch(args); }
}
Have you considered to use a Progress Indicator or a Progress Bar? I think they can be a good solution to show an animation and avoid problems.
I've been able to do it in JavaFX, not with Animations, but using the concurrency classes from JavaFX.
I let you the code here in a gist. I think it isn't very intuitive, because I prefer a progress indicator. And maybe it isn't the best solution, but maybe this will help you.
Cheers