如此处所示：https://stackoverflow.com/a/27113623/7326194我创建了一个类似的剧院。
我真的不知道如何正确使用addListener ..我希望客户只能选择一个座位（一次红色圆圈），而不是一个，所以我想设置以前选择的红色座位是免费的，如果它是一个（绿色和布尔占用=假），每当客户选择一个与红色座位不同的新座位，并设置为红色新座位。
你能帮助我吗？
我真的很感谢你的帮助。
class Seat extends Group {
Color freeColor = Color.rgb(30, 250, 40);
Color freeColorClasse = Color.rgb(255, 255, 0);
Color reservedColor = Color.rgb(170, 40, 40);
int contatoreBase = 0, contatorePC = 0;
BooleanProperty iamReserved = new SimpleBooleanProperty(false);
int myNo;
public Seat(int no) {
myNo = no;
Circle pillow = new Circle(12);
if ( no <= 64) {
pillow.setFill(freeColorClasse);
}
else {
pillow.setFill(freeColor);
}
pillow.setStrokeWidth(1);
pillow.setStroke(Color.rgb(30, 40, 40));
getChildren().add(pillow);
Text lable = new Text(""+no);
lable.setFont(Font.font(11));
lable.setTextAlignment(TextAlignment.CENTER);
lable.setTextOrigin(VPos.CENTER);
lable.setLayoutX(-lable.getLayoutBounds().getWidth()/2);
getChildren().add(lable);
iamReserved.addListener((e, o, n) -> {
pillow.setFill(n ? reservedColor : (no > 64 ? freeColor: freeColorClasse));
});
setOnMouseClicked(m -> {
iamReserved.set(!iamReserved.get());
});
}
}
Pane theater1(Pane pane, String theater) {
double x = 20;
double y = 40;
int no = 1;
for (String row : theater.split("\n")) {
int count = 0;
for (int c : row.toCharArray()) {
switch (c) {
case 'x':
while (count-- > 0) {
Seat seat = new Seat(no++);
seat.setLayoutX(x);
x+=26;
seat.setLayoutY(y);
pane.getChildren().add(seat);
}
count = 0;
break;
case '0': case '1': case '2': case '3': case '4': case '5': case'6': case '7': case '8': case '9':
count = 10 * count + (c - '0');
break;
case '_':
x+=26;
break;
case '.':
x+=13;
break;
default: System.out.println("Unknown char: '"+(char)c+"'");
}
}
y+=36;
x = 20;
}
return pane;
}
这是代码，只是创建剧院的部分
答案 0 :(得分：0)
您可以为Skin实施RadioButton，因为此Control已经提供了您正在寻找的功能。它看起来并不像你需要的那样。使用Skin，您可以更改此内容：
public class SeatRadioSkin extends SkinBase<RadioButton> {
private final Circle circle;
private final Label text;
private final EventHandler<MouseEvent> downHandler = evt -> {
if (evt.getButton() == MouseButton.PRIMARY) {
RadioButton btn = getSkinnable();
if (!btn.isFocused() && btn.isFocusTraversable()) {
btn.requestFocus();
}
if (!btn.isArmed()) {
btn.arm();
}
}
};
private final EventHandler<MouseEvent> upHandler = evt -> {
if (evt.getButton() == MouseButton.PRIMARY) {
RadioButton btn = getSkinnable();
if (btn.isArmed()) {
btn.disarm();
btn.fire();
}
}
};
public SeatRadioSkin(RadioButton button) {
super(button);
circle = new Circle();
circle.setManaged(false);
circle.getStyleClass().setAll("seat");
text = new Label();
text.setManaged(false);
text.textProperty().bind(button.textProperty());
text.getStyleClass().setAll("text");
getChildren().setAll(circle, text);
button.getStyleClass().setAll("seat-radio-button");
button.addEventHandler(MouseEvent.MOUSE_PRESSED, downHandler);
button.addEventHandler(MouseEvent.MOUSE_RELEASED, upHandler);
// todo: more event handlers
}
@Override
protected void layoutChildren(double contentX, double contentY, double contentWidth, double contentHeight) {
circle.setRadius(Math.min(contentWidth, contentHeight) / 2);
layoutInArea(circle, contentX, contentY, contentWidth, contentHeight, -1, HPos.CENTER, VPos.CENTER);
text.resize(contentWidth, contentHeight);
layoutInArea(text, contentX, contentY, contentWidth, contentHeight, -1, HPos.CENTER, VPos.CENTER);
}
@Override
public void dispose() {
text.textProperty().unbind();
RadioButton btn = getSkinnable();
btn.removeEventHandler(MouseEvent.MOUSE_PRESSED, downHandler);
btn.removeEventHandler(MouseEvent.MOUSE_RELEASED, upHandler);
// todo: remove additional event handlers
super.dispose();
}
private double prefSize(double widthOffset, double heightOffset) {
RadioButton btn = getSkinnable();
double w = Math.max(30, btn.getPrefWidth()) + widthOffset;
double h = Math.max(30, btn.getPrefHeight()) + heightOffset;
return Math.min(w, h);
}
@Override
protected double computePrefHeight(double width, double topInset, double rightInset, double bottomInset, double leftInset) {
return prefSize(leftInset + rightInset, topInset + bottomInset);
}
@Override
protected double computePrefWidth(double height, double topInset, double rightInset, double bottomInset, double leftInset) {
return prefSize(leftInset + rightInset, topInset + bottomInset);
}
}
<强> CSS
.seat-radio-button .seat {
-fx-fill: -seat-fill;
-fx-stroke: black;
}
.seat-radio-button:disabled {
-seat-fill-base: #444;
-text-fill: white;
}
.seat-radio-button:focused .seat {
-fx-effect: dropshadow(one-pass-box, -fx-focus-color, 10, 0, 0, 0);
}
.seat-radio-button .text {
-fx-fill: -text-fill;
}
.seat-radio-button {
-seat-fill-base: lime;
-seat-fill: -seat-fill-base;
-text-fill: black;
}
.seat-radio-button:armed {
-seat-fill: ladder(#aaa, black 0%, -seat-fill-base 100%);
}
.seat-radio-button:selected {
-seat-fill-base: red;
}
使用示例
@Override
public void start(Stage primaryStage) {
ToggleGroup group = new ToggleGroup();
RadioButton btn = createSeat("100", 30, 30, group);
RadioButton btn2 = createSeat("101", 30, 30, group);
RadioButton btn3 = createSeat("102", 30, 30, group);
btn2.setDisable(true);
HBox root = new HBox(10, btn, btn2, btn3);
root.setPadding(new Insets(10));
Scene scene = new Scene(root, 200, 50);
scene.getStylesheets().add(getClass().getResource("style.css").toExternalForm());
primaryStage.setScene(scene);
primaryStage.show();
}
答案 1 :(得分：0)
您可以创建一个非常简单的选择模型＆＃34;，只需将选定的座位表示为ObjectProperty<Seat>即可。将常用的get / set / property方法添加到Seat类：
class Seat extends Group {
private Color freeColor = Color.rgb(30, 250, 40);
private Color freeColorClasse = Color.rgb(255, 255, 0);
private Color reservedColor = Color.rgb(170, 40, 40);
private int contatoreBase = 0, contatorePC = 0;
private BooleanProperty iamReserved = new SimpleBooleanProperty(false);
private int myNo;
public BooleanProperty reservedProperty() {
return iamReserved ;
}
public final boolean isReserved() {
return reservedProperty().get();
}
public final void setReserved(boolean reserved) {
reservedProperty().set(reserved);
}
// existing code omitted...
}
现在你可以做到：
private final ObjectProperty<Seat> reservedSeat = new SimpleObjectProperty<>();
Pane theater1(Pane pane, String theater) {
double x = 20;
double y = 40;
int no = 1;
for (String row : theater.split("\n")) {
int count = 0;
for (int c : row.toCharArray()) {
switch (c) {
case 'x':
while (count-- > 0) {
Seat seat = new Seat(no++);
seat.setLayoutX(x);
x+=26;
seat.setLayoutY(y);
pane.getChildren().add(seat);
seat.reservedProperty().addListener((obs, wasReserved, isNowReserved) -> {
if (isNowReserved) {
if (reservedSeat.get() != null) {
reservedSeat.get().setReserved(false);
}
reservedSeat.set(seat);
} else {
reservedSeat.set(null);
}
});
}
count = 0;
break;
case '0': case '1': case '2': case '3': case '4': case '5': case'6': case '7': case '8': case '9':
count = 10 * count + (c - '0');
break;
case '_':
x+=26;
break;
case '.':
x+=13;
break;
default: System.out.println("Unknown char: '"+(char)c+"'");
}
}
y+=36;
x = 20;
}
return pane;
}