在下面的示例中，我尝试在子场景中添加一个组合框。但它没有正常工作。如果我从组合框中选择一个值，它就没有在组合框中设置，并且组合框值没有正确显示。
package javaFxExamples;
import javafx.application.Application;
import javafx.beans.binding.When;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.geometry.Insets;
import javafx.scene.*;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.Slider;
import javafx.scene.image.Image;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.paint.PhongMaterial;
import javafx.scene.shape.DrawMode;
import javafx.scene.shape.MeshView;
import javafx.scene.shape.TriangleMesh;
import javafx.scene.transform.Rotate;
import javafx.stage.Stage;
public class MeshCubeSubScene extends Application {
double anchorX, anchorY;
private static final float EDGE_LENGTH = 380;
private double anchorAngleX = 0;
private double anchorAngleY = 0;
private final DoubleProperty angleX = new SimpleDoubleProperty(25);
private final DoubleProperty angleY = new SimpleDoubleProperty(40);
PerspectiveCamera camera = new PerspectiveCamera(false);
private Slider zSlider;
private final DoubleProperty zPos = new SimpleDoubleProperty(-200);
ComboBox comboBox;
private CheckBox meshCheckBox;
private final BooleanProperty showWireframe = new SimpleBooleanProperty(false);
static TriangleMesh createMesh(float w, float h, float d) {
if (w * h * d == 0) {
return null;
}
float hw = w / 2f;
float hh = h / 2f;
float hd = d / 2f;
float x0 = 0f;
float x1 = 1f / 4f;
float x2 = 2f / 4f;
float x3 = 3f / 4f;
float x4 = 1f;
float y0 = 0f;
float y1 = 1f / 3f;
float y2 = 2f / 3f;
float y3 = 1f;
TriangleMesh mesh = new TriangleMesh();
mesh.getPoints().addAll(
hw, hh, hd, //point A
hw, hh, -hd, //point B
hw, -hh, hd, //point C
hw, -hh, -hd, //point D
-hw, hh, hd, //point E
-hw, hh, -hd, //point F
-hw, -hh, hd, //point G
-hw, -hh, -hd //point H
);
mesh.getTexCoords().addAll(
x1, y0,
x2, y0,
x0, y1,
x1, y1,
x2, y1,
x3, y1,
x4, y1,
x0, y2,
x1, y2,
x2, y2,
x3, y2,
x4, y2,
x1, y3,
x2, y3
);
mesh.getFaces().addAll(
0, 10, 2, 5, 1, 9, //triangle A-C-B
2, 5, 3, 4, 1, 9, //triangle C-D-B
4, 7, 5, 8, 6, 2, //triangle E-F-G
6, 2, 5, 8, 7, 3, //triangle G-F-H
0, 13, 1, 9, 4, 12, //triangle A-B-E
4, 12, 1, 9, 5, 8, //triangle E-B-F
2, 1, 6, 0, 3, 4, //triangle C-G-D
3, 4, 6, 0, 7, 3, //triangle D-G-H
0, 10, 4, 11, 2, 5, //triangle A-E-C
2, 5, 4, 11, 6, 6, //triangle C-E-G
1, 9, 3, 4, 5, 8, //triangle B-D-F
5, 8, 3, 4, 7, 3 //triangle F-D-H
);
mesh.getFaceSmoothingGroups().addAll(
0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5
);
return mesh;
}
@Override
public void start(Stage primaryStage) {
primaryStage.setTitle("MeshCubeSubScene");
Image diffuseMap =
new Image(MeshCubeSubScene.class
.getResource("cbGn_pof-bm.png")
.toExternalForm());
PhongMaterial earthMaterial = new PhongMaterial();
earthMaterial.setDiffuseMap(diffuseMap);
MeshView cube =
new MeshView(createMesh(EDGE_LENGTH, EDGE_LENGTH, EDGE_LENGTH));
cube.setMaterial(earthMaterial);
final Group parent = new Group(cube);
parent.setTranslateX(450);
parent.setTranslateY(400);
parent.setTranslateZ(0);
Rotate xRotate;
Rotate yRotate;
parent.getTransforms().setAll(
xRotate = new Rotate(0, Rotate.X_AXIS),
yRotate = new Rotate(0, Rotate.Y_AXIS)
);
xRotate.angleProperty().bind(angleX);
yRotate.angleProperty().bind(angleY);
final Group root = new Group(parent);
final Scene scene = new Scene(root, 900, 900, true);
scene.setFill(Color.WHITE);
scene.setOnMousePressed(event -> {
anchorX = event.getSceneX();
anchorY = event.getSceneY();
anchorAngleX = angleX.get();
anchorAngleY = angleY.get();
});
scene.setOnMouseDragged(event -> {
angleX.set(anchorAngleX - (anchorY - event.getSceneY()));
angleY.set(anchorAngleY + anchorX - event.getSceneX());
});
PointLight pointLight = new PointLight(Color.WHITE);
pointLight.setTranslateX(300);
pointLight.setTranslateY(200);
pointLight.setTranslateZ(-2000);
root.getChildren().add(pointLight);
scene.setCamera(camera);
primaryStage.setScene(scene);
// SubScene code
PerspectiveCamera subSceneCamera = new PerspectiveCamera(false);
scene.setCamera(subSceneCamera);
Label zLabel = new Label("Z");
zSlider = new Slider(-200, 3000, -200);
meshCheckBox = new CheckBox("Wireframe");
comboBox = new ComboBox();
comboBox.getItems().add("test1");
comboBox.getItems().add("test2");
comboBox.getItems().add("test3");
HBox subSceneGroup = new HBox(70, new HBox(10, zLabel, zSlider), meshCheckBox,comboBox);
subSceneGroup.setPadding(new Insets(100, 100, 0, 100));
SubScene subScene = new SubScene(subSceneGroup, 600, 200);
subScene.setLayoutX(180);
subScene.setLayoutY(720);
root.getChildren().add(subScene);
// Setup binding
zSlider.valueProperty().bindBidirectional(zPos);
parent.translateZProperty().bind(zPos);
meshCheckBox.selectedProperty().bindBidirectional(showWireframe);
cube.drawModeProperty().bind(new When(showWireframe).then(DrawMode.LINE).otherwise(DrawMode.FILL));
primaryStage.show();
}
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
}
答案 0 :(得分：0)
只是添加上面的问题 subcene存在许多问题，包括但不限于（根据我的经验，仍尝试解决它们）： - ComboBox不显示所选项目 - 如果子场景不位于0,0，则在单击下拉列表时，ComboBox弹出窗口会定位到其他位置。 - 选择时，子场景中的选项卡不会显示其组件。 - 其他gui显示问题的数量。