JavaFX with JVM Languages Japan Version
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- Clemence Howard
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1 JavaFX with JVM Languages Japan Version Stephen Chin Java Evangelist, Oracle JavaOne Content Chair
2 Safe Harbor Statement The following is intended to outline our general product direction. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle s products remains at the sole discretion of Oracle.
3 JavaFX 2.0 Platform Immersive Application Experience Leverage your Java skills with modern JavaFX APIs > Cross-platform Animation, Video, Charting > Integrate Java, JavaScript, and HTML5 in the same application > New graphics stack takes advantage of hardware acceleration for 2D and 3D applications > Use your favorite IDE: NetBeans, Eclipse, IntelliJ, etc.
4 JavaFX With Java
5 Programming Languages > JavaFX 2 APIs are now in Java Pure Java APIs for all of JavaFX Binding and Sequences exposed as Java APIs FXML Markup for tooling > Embrace all JVM languages Groovy, Scala, Clojure, JRuby Fantom, Mira, Gosu, Jython, etc. > JavaFX Script is no longer supported by Oracle Existing JavaFX Script based applications will continue to run Visage is the open-source successor to the JavaFX Script language
6 Vanishing Circles 6
![Vanishing Circles in Java public class VanishingCircles extends Application { public static void main(string[] args) { Application.](/docs-images/72/66923163/images/7-3.jpg "launch(args); @Override public void start(stage primarystage) { primarystage.settitle(\"vanishing Circles\"); Group root = new Group(); Scene scene = new Scene(root, 800, 600, Color.")
7 Vanishing Circles in Java public class VanishingCircles extends Application { public static void main(string[] args) { public void start(stage primarystage) { primarystage.settitle("vanishing Circles"); Group root = new Group(); Scene scene = new Scene(root, 800, 600, Color.BLACK); List<Circle> circles = new ArrayList<Circle>(); for (int i = 0; i < 50; i++) { final Circle circle = new Circle(150); circle.setcenterx(math.random() * 800); circle.setcentery(math.random() * 600); circle.setfill(new Color(Math.random(), Math.random(), Math.random(),.2)); circle.seteffect(new BoxBlur(10, 10, 3)); circle.addeventhandler(mouseevent.mouse_clicked, new EventHandler<MouseEvent>() { public void handle(mouseevent t) { KeyValue collapse = new KeyValue(circle.radiusProperty(), 0); new Timeline(new KeyFrame(Duration.seconds(3), collapse)).play(); ); circle.setstroke(color.white); circle.strokewidthproperty().bind(bindings.when(circle.hoverproperty()).then(4).otherwise(0)); circles.add(circle); root.getchildren().addall(circles); primarystage.setscene(scene); primarystage.show(); 40 Lines 1299 Characters Timeline movecircles = new Timeline(); for (Circle circle : circles) { KeyValue movex = new KeyValue(circle.centerXProperty(), Math.random() * 800); KeyValue movey = new KeyValue(circle.centerYProperty(), Math.random() * 600); movecircles.getkeyframes().add(new KeyFrame(Duration.seconds(40), movex, movey)); movecircles.play(); 7
8 Application Skeleton public class VanishingCircles extends Application { public static void main(string[] args) { public void start(stage primarystage) { primarystage.settitle("vanishing Circles"); Group root = new Group(); Scene scene = new Scene(root, 800, 600, Color.BLACK); [create the circles ] root.getchildren().addall(circles); primarystage.setscene(scene); primarystage.show(); [begin the animation ]
9 Create the Circles List<Circle> circles = new ArrayList<Circle>(); for (int i = 0; i < 50; i++) { final Circle circle = new Circle(150); circle.setcenterx(math.random() * 800); circle.setcentery(math.random() * 600); circle.setfill(new Color(Math.random(), Math.random(), Math.random(),.2)); circle.seteffect(new BoxBlur(10, 10, 3)); circle.setstroke(color.white); [setup binding ] [setup event listeners ] circles.add(circle); 9
10 Setup Binding circle.strokewidthproperty().bind(bindings.when(circle.hoverproperty()).then(4).otherwise(0) ); 10
11 Setup Event Listeners circle.addeventhandler(mouseevent.mouse_clicked, new EventHandler<MouseEvent>() { public void handle(mouseevent t) { KeyValue collapse = new KeyValue(circle.radiusProperty(), 0); new Timeline(new KeyFrame(Duration.seconds(3), collapse)).play(); ); 11
12 Begin the Animation Timeline movecircles = new Timeline(); for (Circle circle : circles) { KeyValue movex = new KeyValue(circle.centerXProperty(), Math.random() * 800); KeyValue movey = new KeyValue(circle.centerYProperty(), Math.random() * 600); movecircles.getkeyframes().add(new KeyFrame(Duration.seconds(40), movex, movey)); movecircles.play(); 12
13 JavaFX With Groovy
14 Features of Groovy > Modern language Closures AST Transforms Strongly typed dynamic language > Tight integration with Java Very easy to port from Java to Groovy > Declarative syntax with GroovyFX Builders Familiar to Groovy and JavaFX Script developers
15 Java vs. GroovyFX DSL public class VanishingCircles extends Application { public static void main(string[] args) { public void start(stage primarystage) { primarystage.settitle("vanishing Circles"); Group root = new Group(); Scene scene = new Scene(root, 800, 600, Color.BLACK); List<Circle> circles = new ArrayList<Circle>(); for (int i = 0; i < 50; i++) { final Circle circle = new Circle(150); circle.setcenterx(math.random() * 800); circle.setcentery(math.random() 40 Lines * 600); circle.setfill(new Color(Math.random(), Math.random(), Math.random(),.2)); circle.seteffect(new BoxBlur(10, 10, 3)); circle.addeventhandler(mouseevent.mouse_clicked, new EventHandler<MouseEvent>() { public void handle(mouseevent t) { KeyValue 1299 collapse = new Characters KeyValue(circle.radiusProperty(), 0); new Timeline(new KeyFrame(Duration.seconds(3), collapse)).play(); ); circle.setstroke(color.white); circle.strokewidthproperty().bind(bindings.when(circle.hoverproperty()).then(4).otherwise(0)); circles.add(circle); root.getchildren().addall(circles); primarystage.setscene(scene); primarystage.show(); GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] sg.stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.times { circles << circle(centerx: rand(800), centery: rand(600), radius: 150, stroke: white, strokewidth: bind('hover', converter: {val -> val? 4 : 0)) { fill rgb(rand(255), rand(255), rand(255), 0.2) effect boxblur(width: 10, height: 10, iterations: 3) onmouseclicked { e -> timeline { at(3.s) { change e.source.radiusproperty() to 0.play() 29 Lines 671 Characters timeline(cyclecount: Timeline.INDEFINITE, autoreverse: true) { circles.each { circle -> at (40.s) { change circle.centerxproperty() to rand(800) change circle.centeryproperty() to rand(600).play() Timeline movecircles = new Timeline(); for (Circle circle : circles) { KeyValue movex = new KeyValue(circle.centerXProperty(), Math.random() * 800); KeyValue movey = new KeyValue(circle.centerYProperty(), Math.random() * 600); movecircles.getkeyframes().add(new KeyFrame(Duration.seconds(40), movex, movey)); movecircles.play(); 15
16 GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] sg.stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.times { circles << circle(centerx: rand(800), centery: rand(600), radius: 150, stroke: white, strokewidth: bind('hover', converter: {val -> val? 4 : 0)) { fill rgb(rand(255), rand(255), rand(255), 0.2) effect boxblur(width: 10, height: 10, iterations: 3) 16
![GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] Builder for GroovyFX scene graphs sg.](/docs-images/72/66923163/images/17-1.jpg "stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.")
17 GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] Builder for GroovyFX scene graphs sg.stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.times { circles << circle(centerx: rand(800), centery: rand(600), radius: 150, stroke: white, strokewidth: bind('hover', converter: {val -> val? 4 : 0)) { fill rgb(rand(255), rand(255), rand(255), 0.2) effect boxblur(width: 10, height: 10, iterations: 3) 17
![GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] sg.](/docs-images/72/66923163/images/18-1.jpg "stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.")
18 GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] sg.stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.times { circles << circle(centerx: rand(800), centery: rand(600), radius: 150, stroke: white, Declarative Stage definition strokewidth: bind('hover', converter: {val -> val? 4 : 0)) { fill rgb(rand(255), rand(255), rand(255), 0.2) effect boxblur(width: 10, height: 10, iterations: 3) 18
![GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] Inline property definitions sg.](/docs-images/72/66923163/images/19-1.jpg "stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.")
19 GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] Inline property definitions sg.stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { 50.times { circles << circle(centerx: rand(800), centery: rand(600), radius: 150, stroke: white, strokewidth: bind('hover', converter: {val -> val? 4 : 0)) { fill rgb(rand(255), rand(255), rand(255), 0.2) effect boxblur(width: 10, height: 10, iterations: 3) 19
![GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] sg.](/docs-images/72/66923163/images/20-1.jpg "stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { Bind to properties 50.")
20 GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] sg.stage(title: 'Vanishing Circles', show: true) { scene(fill: black, width: 800, height: 600) { Bind to properties 50.times { circles << circle(centerx: rand(800), centery: rand(600), radius: 150, stroke: white, strokewidth: bind('hover', converter: {val -> val? 4 : 0)) { fill rgb(rand(255), rand(255), rand(255), 0.2) effect boxblur(width: 10, height: 10, iterations: 3) 20
21 GroovyFX.start { primarystage -> def sg = new SceneGraphBuilder() def rand = new Random().&nextInt def circles = [] sg.stage(title: 'Vanishing Circles', show: Sequence true) { Creation Via Loop scene(fill: black, width: 800, height: 600) { 50.times { circles << circle(centerx: rand(800), centery: rand(600), radius: 150, stroke: white, strokewidth: bind('hover', converter: {val -> val? 4 : 0)) { fill rgb(rand(255), rand(255), rand(255), 0.2) effect boxblur(width: 10, height: 10, iterations: 3) 21
22 Animation in GroovyFX timeline(cyclecount: Timeline.INDEFINITE, autoreverse: true) { circles.each { circle -> at (40.s) { change circle.centerxproperty() to rand(800) change circle.centeryproperty() to rand(600).play() 22
23 Animation in GroovyFX timeline(cyclecount: Timeline.INDEFINITE, autoreverse: true) { circles.each { circle -> at (40.s) { change circle.centerxproperty() to rand(800) change circle.centeryproperty() to rand(600).play() Easy animation syntax: at (duration) {keyframes 23
24 Animation in GroovyFX timeline(cyclecount: Timeline.INDEFINITE, autoreverse: true) { circles.each { circle -> at (40.s) { change circle.centerxproperty() to rand(800) change circle.centeryproperty() to rand(600).play() Key frame DSL 24
25 Animation in GroovyFX timeline(cyclecount: Timeline.INDEFINITE, autoreverse: true) { circles.each { circle -> at (40.s) { change circle.centerxproperty() to rand(800) tween ease_both change circle.centeryproperty() to rand(600) tween linear.play() Optional easing 25
26 Event Listeners in GroovyFX > Supported using the built-in Closure syntax > Optional arguments for event objects onmouseclicked { e -> timeline { at(3.s) { change e.source.radiusproperty() to 0.play() 26
27 Event Listeners in GroovyFX > Supported using the built-in Closure syntax > Optional arguments for event objects onmouseclicked { MouseEvent e -> timeline { at(3.s) { change e.source.radiusproperty() to 0.play() Compact syntax {body 27
28 Event Listeners in GroovyFX > Supported using the built-in Closure syntax > Optional arguments for event objects Optional event parameter {event -> body onmouseclicked { MouseEvent e -> timeline { at(3.s) { change e.source.radiusproperty() to 0.play() 28
29 But wait, there is more Grooviness 29
30 Properties in Java public class Person { private StringProperty firstname; public void setfirstname(string val) { firstnameproperty().set(val); public String getfirstname() { return firstnameproperty().get(); public StringProperty firstnameproperty() { if (firstname == null) firstname = new SimpleStringProperty(this, "firstname"); return firstname; private StringProperty lastname; public void setlastname(string value) { lastnameproperty().set(value); public String getlastname() { return lastnameproperty().get(); public StringProperty lastnameproperty() { if (lastname == null) // etc. 30
31 Properties in GroovyFX public class Person String String lastname; 31
32 Properties in GroovyFX public class Person String String lastname = Smith ; Optional initializers 32
33 TableView in Java ObservableList<Person> items =... TableView<Person> tableview = new TableView<Person>(items); TableColumn<Person,String> firstnamecol = new TableColumn<Person,String>("First Name"); firstnamecol.setcellvaluefactory( new Callback<CellDataFeatures<Person, String>, ObservableValue<String>>() { public ObservableValue<String> call(celldatafeatures<person, String> p) { return p.getvalue().firstnameproperty(); ); tableview.getcolumns().add(firstnamecol); 33
34 TableView in GroovyFX def dateformat = new SimpleDateFormat("yyyy-MM-dd"); tableview(items: persons) { tablecolumn(property: "name", text: "Name", prefwidth: 150) tablecolumn(property: "age", text: "Age", prefwidth: 50) tablecolumn(property: "gender", text: "Gender", prefwidth: 150) tablecolumn(property: "dob", text: "Birth", prefwidth: 150, type: Date, converter: { from -> return dateformat.format(from) ) 34
35 Layout in Java TextField urlfield = new TextField( ); HBox.setHgrow(urlField, Priority.ALWAYS); HBox hbox = new HBox(); hbox.getchildren().add(urlfield); WebView webview = new WebView(); VBox.setVgrow(webView, Priority.ALWAYS); VBox vbox = new VBox(); vbox.getchildren().addall(hbox, webview); 35
36 Layout in GroovyFX sg.stage(title: "GroovyFX WebView Demo", show: true) { scene(fill: groovyblue, width: 1024, height: 800) { vbox { hbox(padding: 10, spacing: 5) { textfield( hgrow: "always") button("go ) webview(vgrow: "always") 36
37 Layout in GroovyFX 37
38 Layout in GroovyFX gridpane(hgap: 5, vgap: 10, padding: 25) { columnconstraints(minwidth: 50, halignment: "right") columnconstraints(prefwidth: 250) label("send Us Your Feedback", font: "24pt sanserif", row: 0, columnspan: GridPane.REMAINING, halignment: "center", margin: [0, 0, 10]) label("name: ", row: 1, column: 0) textfield(prompttext: "Your name", row: 1, column: 1, hgrow: 'always') label(" ", row: 2, column: 0) textfield(prompttext: "Your ", row: 2, column: 1, hgrow: 'always') label("message:", row: 3, column: 0, valignment: "baseline") textarea(row: 3, column: 1, hgrow: "always", vgrow: "always") button("send Message", row: 4, column: 1, halignment: "right") 38
39 Layout in GroovyFX 39
40 GroovyFX Supports 40
41 And is most like which Anime? (or Manga) 41
42 42
43 JavaFX With Clojure Artwork by Augusto Sellhorn 43
44 A Little About Clojure > Started in 2007 by Rich Hickey > Functional Programming Language > Derived from LISP > Optimized for High Concurrency (def hello (fn [] "Hello world")) (hello) > and looks nothing like Java! 44
45 Clojure Syntax in One Slide Symbols > numbers > ratios 355/113 > strings clojure, rocks > characters a b c d > symbols a b c d > keywords :alpha :beta > boolean true, false > null - nil Collections (commas optional) > Lists (1, 2, 3, 4, 5) > Vectors [1, 2, 3, 4, 5] > Maps {:a 1, :b 2, :c 3, :d 4 > Sets #{:a :b :c :d :e (plus macros that are syntactic sugar wrapping the above) 45
46 Clojure GUI Example (defn javafxapp [] (let [stage (Stage. "JavaFX Stage") scene (Scene.)] (.setfill scene Color/LIGHTGREEN) (.setwidth stage 600) (.setheight stage 450) (.setscene stage scene) (.setvisible stage true))) (javafxapp) 46
47 Refined Clojure GUI Example (defn javafxapp [] (doto (Stage. "JavaFX Stage") (.setwidth 600) (.setheight 450) (.setscene (doto (Scene.) (.setfill Color/LIGHTGREEN) (.setcontent (list (doto (Rectangle.) (.setx 25) (.sety 40) (.setwidth 100) (.setheight 50) (.setfill Color/RED)))))) (.setvisible true))) (javafxapp) 47
![Refined Clojure GUI Example (defn javafxapp [] (doto (Stage. "JavaFX Stage") (.setwidth 600) (.setheight 450) (.setscene (doto (Scene.) (.setfill Color/LIGHTGREEN) (.](/docs-images/72/66923163/images/48-0.jpg "setcontent (list (doto (Rectangle.) (.setx 25) (.sety 40) (.setwidth 100) (.setheight 50) (.setfill Color/RED)))))) (.")
48 Refined Clojure GUI Example (defn javafxapp [] (doto (Stage. "JavaFX Stage") (.setwidth 600) (.setheight 450) (.setscene (doto (Scene.) (.setfill Color/LIGHTGREEN) (.setcontent (list (doto (Rectangle.) (.setx 25) (.sety 40) (.setwidth 100) (.setheight 50) (.setfill Color/RED)))))) (.setvisible true))) (javafxapp) Doto allows nested data structures 48
49 Closures in Clojure > Inner classes can be created using proxy (.addlistener hoverproperty (proxy [ChangeListener] [] (handle [p, o, v] (.setfill rect (if (.ishover rect) Color/GREEN Color/RED))))) 49
![(.addlistener hoverproperty (proxy [ChangeListener] [] (handle [p,](/docs-images/72/66923163/images/50-2.jpg "o, v] (.setfill rect (if (.")
50 Closures in Clojure > Inner classes can be created using proxy Proxy form: (proxy [class] [args] fs+) f => (name [params*] body) (.addlistener hoverproperty (proxy [ChangeListener] [] (handle [p, o, v] (.setfill rect (if (.ishover rect) Color/GREEN Color/RED))))) 50
51 And is most like which Anime? (or Manga) 51
52 Using Clojure with JavaFX is that easy? 52
53 JavaFX With Scala 53
54 What is Scala 2001 Scala Started 2006 Scala v /2004 Scala v Scala (latest) > Started in 2001 by Martin Odersky > Compiles to Java bytecodes > Pure object-oriented language > Also a functional programming language 54
55 Java vs. Scala DSL public class VanishingCircles extends Application { public static void main(string[] args) { public void start(stage primarystage) { primarystage.settitle("vanishing Circles"); Group root = new Group(); Scene scene = new Scene(root, 800, 600, Color.BLACK); List<Circle> circles = new ArrayList<Circle>(); for (int i = 0; i < 50; i++) { final Circle circle = new Circle(150); circle.setcenterx(math.random() * 800); circle.setcentery(math.random() 40 Lines * 600); circle.setfill(new Color(Math.random(), Math.random(), Math.random(),.2)); circle.seteffect(new BoxBlur(10, 10, 3)); circle.addeventhandler(mouseevent.mouse_clicked, new EventHandler<MouseEvent>() { public void handle(mouseevent t) { KeyValue 1299 collapse = new Characters KeyValue(circle.radiusProperty(), 0); new Timeline(new KeyFrame(Duration.seconds(3), collapse)).play(); ); circle.setstroke(color.white); circle.strokewidthproperty().bind(bindings.when(circle.hoverproperty()).then(4).otherwise(0)); circles.add(circle); root.getchildren().addall(circles); primarystage.setscene(scene); primarystage.show(); Timeline movecircles = new Timeline(); for (Circle circle : circles) { KeyValue movex = new KeyValue(circle.centerXProperty(), Math.random() * 800); KeyValue movey = new KeyValue(circle.centerYProperty(), Math.random() * 600); movecircles.getkeyframes().add(new KeyFrame(Duration.seconds(40), movex, movey)); movecircles.play(); object VanishingCircles extends JFXApp { var circles: Seq[Circle] = null stage = new Stage { title = "Vanishing Circles" width = 800 height = 600 scene = new Scene { fill = BLACK circles = for (i <- 0 until 50) yield new Circle { centerx = random * 800 centery = random * 600 radius = 150 fill = color(random, random, random,.2) effect = new BoxBlur(10, 10, 3) strokewidth <== when (hover) then 4 otherwise 0 stroke = WHITE 33 Lines onmouseclicked = { Timeline(at (3 s) {radius -> 0).play() content = circles 591 Characters new Timeline { cyclecount = INDEFINITE autoreverse = true keyframes = for (circle <- circles) yield at (40 s) { Set( circle.centerx -> random * stage.width, circle.centery -> random * stage.height ).play(); 55
56 object VanishingCircles extends JFXApp { stage = new Stage { title = "Disappearing Circles" width = 800 height = 600 scene = new Scene { fill = BLACK children = for (i <- 0 until 50) yield new Circle { centerx = random * 800 centery = random * 600 radius = 150 fill = color(random, random, random, 0.2) effect = new BoxBlur(10, 10, 3) 56
57 object VanishingCircles extends JFXApp { stage = new Stage { title = "Disappearing Circles" width = 800 height Base = 600 class for JavaFX applications scene = new Scene { fill = BLACK children = for (i <- 0 until 50) yield new Circle { centerx = random * 800 centery = random * 600 radius = 150 fill = color(random, random, random, 0.2) effect = new BoxBlur(10, 10, 3) 57
58 object VanishingCircles extends JFXApp { stage = new Stage { title = "Disappearing Circles" width = 800 height = 600 scene = new Scene { fill = BLACK children = for (i <- 0 until 50) yield new Circle { centerx = random * 800 centery = random * 600 radius = 150 fill = color(random, random, random, 0.2) effect = new BoxBlur(10, 10, 3) Declarative Stage definition 58
59 object VanishingCircles extends JFXApp { stage = new Stage { title = "Disappearing Circles" width = 800 Inline property definitions height = 600 scene = new Scene { fill = BLACK children = for (i <- 0 until 50) yield new Circle { centerx = random * 800 centery = random * 600 radius = 150 fill = color(random, random, random, 0.2) effect = new BoxBlur(10, 10, 3) 59
60 object VanishingCircles extends JFXApp { stage = new Stage { title = "Disappearing Circles" width = 800 height = 600 scene = new Scene { fill = BLACK children = for (i <- 0 until 50) yield new Circle { centerx = random * 800 centery = random * 600 radius = 150 fill = color(random, random, random, 0.2) effect = new BoxBlur(10, 10, 3) Sequence Creation Via Loop 60
61 Binding in Scala Infix Addition/Subtraction/Multiplication/Division: height <== rect1.height + rect2.height Aggregate Operators: width <== max(rect1.width, rect2.width, rect3.width) Conditional Expressions: strokewidth <== when (hover) then 4 otherwise 0 Compound Expressions: text <== when (rect.hover circle.hover &&!disabled) then textfield.text + " is enabled" otherwise "disabled" 61
62 Animation in Scala val timeline = new Timeline { cyclecount = INDEFINITE autoreverse = true keyframes = for (circle <- circles) yield at (40 s) { Set( circle.centerx -> random * stage.width, circle.centery -> random * stage.height ) timeline.play(); 62
63 Animation in Scala JavaFX Script-like animation syntax: at (duration) {keyframes val timeline = new Timeline { cyclecount = INDEFINITE autoreverse = true keyframes = for (circle <- circles) yield at (40 s) { Set( circle.centerx -> random * stage.width, circle.centery -> random * stage.height ) timeline.play(); 63
64 Animation in Scala val timeline = new Timeline { cyclecount = INDEFINITE autoreverse = true keyframes = for (circle <- circles) yield at (40 s) { Set( circle.centerx -> random * stage.width, circle.centery -> random * stage.height ) timeline.play(); Operator overloading for animation syntax 64
65 Animation in Scala val timeline = new Timeline { cyclecount = INDEFINITE autoreverse = true keyframes = for (circle <- circles) yield at (40 s) { Set( circle.centerx -> random * stage.width tween EASE_BOTH, circle.centery -> random * stage.height tween EASE_IN ) timeline.play(); Optional tween syntax 65
66 Event Listeners in Scala > Supported using the built-in Closure syntax > Arguments for event objects > 100% type-safe onmouseclicked = { (e: MouseEvent) => Timeline(at(3 s){radius->0).play() 66
67 Event Listeners in Scala > Supported using the built-in Closure syntax > Arguments for event objects > 100% type-safe onmouseclicked = { (e: MouseEvent) => Timeline(at(3 s){radius->0).play() Compact syntax {body 67
68 Event Listeners in Scala > Supported using the built-in Closure syntax > Arguments for event objects > 100% type-safe Event parameter {(event) => body onmouseclicked = { (e: MouseEvent) => Timeline(at(3 s){radius->0).play() 68
69 TableView in ScalaFX def dateformat = new SimpleDateFormat("yyyy-MM-dd") new TableView[Speaker](persons) { columns = Seq( new TableColumn[Speaker, String] { text: "Name" converter = {_.firstname new TableColumn[Speaker, String] { text: "Age" converter = {_.age new TableColumn[Speaker, String] { text: "Gender" converter = {_.gender new TableColumn[Speaker, String] { text: "Birth" converter = {dateformat.format(_.dob), ) 69
70 Using Giter8 to bootstrap ScalaFX > Project site: > > Created by JUGChennai 70
71 And is most like which Anime? (or Manga) 71
72 72
73 JavaFX With Visage 73
74 About Project Visage > Visage is a domain specific language (DSL) designed for the express purpose of writing user interfaces. > Visage project goals: Compile to JavaFX Java APIs Evolve the Language (Annotations, Maps, etc.) Support Other Toolkits > Come join the team! > For more info: 74
75 Java vs. Visage DSL public class VanishingCircles extends Application { public static void main(string[] args) { public void start(stage primarystage) { primarystage.settitle("vanishing Circles"); Group root = new Group(); Scene scene = new Scene(root, 800, 600, Color.BLACK); List<Circle> circles = new ArrayList<Circle>(); for (int i = 0; i < 50; i++) { final Circle circle = new Circle(150); circle.setcenterx(math.random() * 800); circle.setcentery(math.random() 40 Lines * 600); circle.setfill(new Color(Math.random(), Math.random(), Math.random(),.2)); circle.seteffect(new BoxBlur(10, 10, 3)); circle.addeventhandler(mouseevent.mouse_clicked, new EventHandler<MouseEvent>() { public void handle(mouseevent t) { KeyValue 1299 collapse = new Characters KeyValue(circle.radiusProperty(), 0); new Timeline(new KeyFrame(Duration.seconds(3), collapse)).play(); ); circle.setstroke(color.white); circle.strokewidthproperty().bind(bindings.when(circle.hoverproperty()).then(4).otherwise(0)); circles.add(circle); root.getchildren().addall(circles); primarystage.setscene(scene); primarystage.show(); Timeline movecircles = new Timeline(); for (Circle circle : circles) { KeyValue movex = new KeyValue(circle.centerXProperty(), Math.random() * 800); KeyValue movey = new KeyValue(circle.centerYProperty(), Math.random() * 600); movecircles.getkeyframes().add(new KeyFrame(Duration.seconds(40), movex, movey)); movecircles.play(); var circles:circle[]; Stage { title: "Vanishing Circles" Scene { width: 800 height: 600 fill: BLACK Group { circles = for (i in [1..50]) { def c:circle = Circle { centerx: random() * 800 centery: random() * 600 radius: 150 fill: color(random(), random(), random(),.2) effect: BoxBlur { height: Lines width: 10 iterations: 3 stroke: WHITE strokewidth: bind if (c.hover) 5 else 0 onmouseclicked: function(e) { Timeline {at (3s) {c.radius => 0.play() 487 Characters Timeline { for (circle in circles) at (40s) { circle.centerx => random() * 800; circle.centery => random() * 600.play() 75
76 How about JavaFX on Visage Stage { title: "Vanishing Circles" scene: Scene { width: 800 height: 600 fill: BLACK content: Group { circles = for (i in [1..50]) { Circle { centerx: random() * 800 centery: random() *
77 How about JavaFX on Visage Stage { title: "Vanishing Circles" scene: Scene { width: 800 height: 600 fill: BLACK content: Group { circles = for (i in [1..50]) { Circle { centerx: random() * 800 centery: random() *
78 How about JavaFX on Visage Stage { title: "Vanishing Circles" Scene { width: 800 height: 600 fill: BLACK Group { circles = for (i in [1..50]) { Circle { centerx: random() * 800 centery: random() *
79 Visage is JavaFX Script++ > Default Parameters > New Literal Syntax For: Angles 35deg, 4rad, 1turn Colors #DDCCBB, #AA33AA CC Lengths 5px, 2pt, 3in, 4sp > Null-check Dereference var width = rect.!width > Built-in Bindable Maps (coming soon!) var fruitmap = ["red" : apple, "yellow" : banana] var fruit = bind fruitmap["red"] 79
80 Visage and JavaFX 2.0 are made for each other > Enhanced Binding Retains lazy evaluation properties with additional expressive power > Integrated Collections Sequences and Maps automatically convert between JavaFX Observable Lists/Maps > Built-in Animation Syntax Ties into JavaFX animation subsystem Provides consistent, clean APIs 80
81 And is most like which Anime? (or Manga) 81
82 82
83 Other JVM Languages to Try > Gosu Up and coming language created at GuideWire Easy to enhance libraries and create DSLs > Mirah Invented by Charles Nutter Local Type Inference, Static and Dynamic Typing > Fantom Created by Brian and Andy Frank Portable to Java and.net Local Type Inference, Static and Dynamic Typing 83
84 JavaFX With JRuby
85 Why JRuby? > Full implementation of Ruby > Direct access to Java APIs > Dynamic Typing > Closures > Closure conversion for interfaces Ruby is made in Japan! Yukihiro Matsumoto 松本行弘 ( まつもとゆきひろ )
86 Java vs. JRubyFX DSL public class VanishingCircles extends Application { public static void main(string[] args) { public void start(stage primarystage) { primarystage.settitle("vanishing Circles"); Group root = new Group(); Scene scene = new Scene(root, 800, 600, Color.BLACK); List<Circle> circles = new ArrayList<Circle>(); for (int i = 0; i < 50; i++) { final Circle circle = new Circle(150); circle.setcenterx(math.random() * 800); circle.setcentery(math.random() 40 Lines * 600); circle.setfill(new Color(Math.random(), Math.random(), Math.random(),.2)); circle.seteffect(new BoxBlur(10, 10, 3)); circle.addeventhandler(mouseevent.mouse_clicked, new EventHandler<MouseEvent>() { public void handle(mouseevent t) { KeyValue 1299 collapse = new Characters KeyValue(circle.radiusProperty(), 0); new Timeline(new KeyFrame(Duration.seconds(3), collapse)).play(); ); circle.setstroke(color.white); circle.strokewidthproperty().bind(bindings.when(circle.hoverproperty()).then(4).otherwise(0)); circles.add(circle); root.getchildren().addall(circles); primarystage.setscene(scene); primarystage.show(); Timeline movecircles = new Timeline(); for (Circle circle : circles) { KeyValue movex = new KeyValue(circle.centerXProperty(), Math.random() * 800); KeyValue movey = new KeyValue(circle.centerYProperty(), Math.random() * 600); movecircles.getkeyframes().add(new KeyFrame(Duration.seconds(40), movex, movey)); movecircles.play(); class VanishingCircles < JRubyFX::Application def start(stage) with(stage, title: "Vanishing Circles", x: 105, y: 140) do layout_scene(800, 600, :black) do group() do 50.times() do circle(centerx: Random.rand(800), centery: Random.rand(600), radius: 150, stroke: :white, strokewidth: 0, fill: Color.rgb(Random.rand(255), Random.rand(255), Random.rand(255), 0.2)) do center_x = centerxproperty center_y = centeryproperty radius = radiusproperty stroke_width = strokewidthproperty hoverproperty.add_change_listener do stroke_width.set(hoverproperty.get()? 4 : 0) end set_on_mouse_clicked 33 Lines do timeline() do animate radius, 0.sec => 3.sec, 150 => 0 end.play end effect box_blur(width: 10, height: 10, iterations: 3) 842 Characters timeline(cycle_count: :indefinite, auto_reverse: true) do animate center_x, 0.sec => 40.sec, center_x.get() => Random.rand(800) animate center_y, 0.sec => 40.sec, center_y.get() => Random.rand(600) end.play end end end end show end end end 86
87 How about JavaFX on JRubyFX class VanishingCircles < JRubyFX::Application def start(stage) with(stage, title: "Vanishing Circles", x: 105, y: 140) do layout_scene(800, 600, :black) do group() do 50.times() do circle(centerx: Random.rand(800), centery: Random.rand(600), radius: 150, stroke: :white, strokewidth: 0, fill: Color.rgb(Random.rand(255), Random.rand(255), Random.rand(255), 0.2)) do effect box_blur(width: 10, height: 10, iterations: 3) end end end end show end end end 87
88 And is most like which Anime? (or Manga) 88
89 89
90 Conclusion > You can write JavaFX applications in pure Java > JavaFX is also usable in alternate languages > You can get improved support using DSL libraries GroovyFX ScalaFX JRubyFX!!! > Or a dedicated UI JVM Language Visage
91 Contribute! > GroovyFX: > > ScalaFX: > > Visage: > > JRubyFX: > 91
92 Stephen Chin Thanks to Dean Iverson, Jonathan Giles, and Angela Caicedo for help preparing this talk 92
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