As I previously said I am working on a Software Component Editor. Transforming my inkscape visual prototype to my FX Application was quiet easy thanks to JavaFX SVGPath. At least for the shape contour, but I had another problem to solve to manage gradient.
So I started groping around JavaFx Gradient paint (RadialGradient and LinearGradient). Modifying and launching again and again to adjust my gradient attributes change. And then I get bored… I mean, It was about to take me a whole life making theses adjustments !
Thinking about it I remembered the way prototypes are built in my company, using SmallTalk language and performing changes on code on the editor that is taken into account as soon as they are “accepted”. Well I can do that too ! Thanks to Eclipse IDE debug mode. The only constraint was to have no structural change in my code and finding a way to have a loop that will take into account all changes on my JavaFX graphical Application.
Please welcome my little NodeEditionVisualizer ! It is simply a JavaFX Application that loop on a method call that draw a user created Node continuously. It has to be launched in debug mode so that changes are taken into account when you save. It is composed of an X/Y axis and a user created Node that can be changed dynamically.
protected ScheduledThreadPoolExecutor executor =new ScheduledThreadPoolExecutor(1);publicstaticvoid main(String[] args){
NodeEditionVisualizer.launch(args);}
@Override
publicvoid start(final Stage primaryStage)throwsException{finalGroup pane =newGroup();
pane.translateXProperty().set(50);
pane.translateYProperty().set(50);
Scene scene =new Scene(pane);
scene.setFill(Color.BLACK);
primaryStage.setScene(scene);
primaryStage.setWidth(550);
primaryStage.setHeight(550);
primaryStage.setX(0);
primaryStage.setY(0);
primaryStage.setTitle("C3 Shape Editor");
primaryStage.show();final Path axis = PathBuilder.create().elements(new MoveTo(0, 0),
new LineTo(0, 100),
new LineTo(-10, 90),
new MoveTo(0, 100),
new LineTo(10,90),
new MoveTo(0, 100),
new LineTo(0, 3000),
new MoveTo(0, 0),
new LineTo(100, 0),
new LineTo(90, -10),
new MoveTo(100, 0),
new LineTo(90, 10),
new MoveTo(100, 0),
new LineTo(3000, 0)).stroke(Color.WHITE).build();final Text origin = TextBuilder.create()
.text("(0,0)").fill(Color.WHITE).x(-10).y(-5)
.build();final Text x = TextBuilder.create()
.text("X Axis").fill(Color.WHITE).x(50).y(-5)
.build();final Text y = TextBuilder.create()
.text("Y Axis").fill(Color.WHITE).x(-25).y(70).rotate(-90)
.build();this.executor.scheduleAtFixedRate(newRunnable(){
@Override
publicvoid run(){
Platform.runLater(newRunnable(){
@Override
publicvoid run(){
pane.getChildren().clear();
Node dut = createShape();
pane.getChildren().addAll(dut, axis, origin, x, y);}});}}, 200, 200, TimeUnit.MILLISECONDS);
primaryStage.setOnCloseRequest(new EventHandler(){
@Override
publicvoid handle(WindowEvent paramT){
executor.shutdownNow();}});}public Node createShape(){Rectangle rectangle = RectangleBuilder.create()
.x(50).y(100).width(250).height(100).fill(Color.RED).stroke(Color.BLACK)
.build();
Circle circle = CircleBuilder.create()
.centerX(150).centerY(100).fill(Color.BLUE).radius(200)
.build();returnnewGroup(circle, rectangle);}}
As usual, code is available in a jar on download page.
Feel free to reuse this code ! If you have some suggestions, I would be glad to take them into account !
I start developing a new application for a software components editor (more informations soon). So I built my visual using Inkscape (as usual). Then I asked myself how to import my svg objects into JavaFx. I saw Inkscape does offer to export your svg into JavaFx code, but for now only JavaFx1.3 script is supported, so unable to do it for my JavaFX2.0 business application… Well I was only half tempted by writing a JavaFX1.3 to JavaFX2.0 code converter…
What a good suprise to discover the SVGPath object in JavaFx ! It made my import work quite easy (not easier than if Inkscape generated it for me but….). I just use the Inkscape objects xml editor to copy the path informations as shown :
Then juste create a JavaFx SVGPath Object and fill the content attribute with what you’ve copied
And Here you are with your SVG interface work into your business JavaFx code ! Take care that positions of the SVG Object path points from Inkscape are relative to the top/left corner of your page.
I did not find out how to easily transform your SVG object fill information as available in the Inkscape xml editor into JavaFx. I might think of writing a small parser program that compute such information into code… For now I translated myself the fill information using JavaFx Painter.
If some of you have interesting informations about SVGPath in JavaFx, raise your hand !
I’ve just been invited to join the Java Code Geek program. The aim of Java Code Geek is to aggregate Java related content and allow creation of a big Java centric community !
So be aware now that Mr LoNee contributes to JCG’s Program ! You might read my posts through this site, as well as other interesting content.
Many projects in progress in my stack ! Today I’d like to share an upgrade of my Presenter project that aims to offer a simple API in JavaFX to create a “Prezi” like items navigation. This upgrade does manage Node rotation and Node scaling so that the Node does take most of the screen ! It also include a drag’n'drop on the view to move the camera where you want. No zoom In & out available for now since I did not had time to implement it !
As I mentioned in previous post I spend some time to try JavaFx 2.0 beta release. After playing a little with the tutorials, I try myself writing code that would include JavaFx Node transition, effects and coordinates manipulation.
I tried writing a simple slide presenter where slide would be defined in the graphic system coordinate as javafx.scene.Group and could be added to a com.mrlonee.presenter.Presenter. A little video of the sample presenter application is available :
Transition between each element is composed of a translate and and scale transition played together. It gives the effect that we scale up and down while translating to the next slide to present as follow
The translation code is above :
Timeline animationTransition =new TimelineBuilder()
.keyFrames(new KeyFrame(Duration.ZERO,
new KeyValue(this.root.translateXProperty(), fromX),
new KeyValue(this.root.translateYProperty(), fromY)),
new KeyFrame(Duration.ZERO,
new KeyValue(this.root.scaleXProperty(), this.root.scaleXProperty().get()),
new KeyValue(this.root.scaleYProperty(), this.root.scaleYProperty().get())),
new KeyFrame(Duration.valueOf(300),
new KeyValue(this.root.scaleXProperty(), 0.7),
new KeyValue(this.root.scaleYProperty(), 0.7)),
new KeyFrame(Duration.valueOf(150),
new KeyValue(this.root.translateXProperty(), fromX +(toX - fromX)/6),
new KeyValue(this.root.translateYProperty(), fromY +(toY - fromY)/6)),
new KeyFrame(Duration.valueOf(450),
new KeyValue(this.root.translateXProperty(), fromX +(toX - fromX)*5/6),
new KeyValue(this.root.translateYProperty(), fromY +(toY - fromY)*5/6)),
new KeyFrame(Duration.valueOf(600),
new KeyValue(this.root.translateXProperty(), toX),
new KeyValue(this.root.translateYProperty(), toY)),
new KeyFrame(Duration.valueOf(600),
new KeyValue(this.root.scaleXProperty(), finalScale),
new KeyValue(this.root.scaleYProperty(), finalScale)))
.build();
A Thumb view is built by the presenter as you add element to present. This thumb view just add a cyan circle node that is surrounded by a blue circle as the slide with thumb circle index is presented. An example for third slide would be :
The source code is available in presenter.jar file in download page !
Feel free to try it. I might upgrade it with :
scale each slide so that it take the whole frame size
propose real node thumb to navigate when there is many slide
propose a way to choose what animation transition shall be taken
propose a slide editor (well it may be long I suppose…)
I still have to find a way to perform a scale animation that is using a custom scale center. I could use it to finish to scale so that the currently presented slide takes the whole frame width/height instead of using 1.0 scale of the slide.