シェイプの回転 - アンカーが従わない - JavaFX

Question

移動可能でサイズ変更が可能な長方形を作成しました。私は正常に行った形の回転を実装する必要があります。しかし、形状を回転させると、アンカーポイントは追従しません。誰も私が間違ってやっていることや、この問題をどうやって修正できるかについて私にいくつかの指導をお願いしますか？回転前

：

回転後：

public Rectangle createDraggableRectangle(double x, double y, double width, double height) { 
    final double handleRadius = 20 ; 
    final double handleRadius2 = 30 ; 

    Rectangle rect = new Rectangle(x, y, width, height); 

    // top left resize handle: 
    Circle resizeHandleNW = new Circle(handleRadius, Color.RED); 
    // bind to top left cornerof Rectangle: 
    resizeHandleNW.centerXProperty().bind(rect.xProperty()); 
    resizeHandleNW.centerYProperty().bind(rect.yProperty()); 

    // bottom right resize handle: 
    Circle resizeHandleSE = new Circle(handleRadius, Color.RED); 
    // bind to bottom right corner of Rectangle: 
    resizeHandleSE.centerXProperty().bind(rect.xProperty().add(rect.widthProperty())); 
    resizeHandleSE.centerYProperty().bind(rect.yProperty().add(rect.heightProperty())); 

    // move handle: 
    Circle moveHandle = new Circle(handleRadius2,Color.RED); 
    moveHandle.setOpacity(0.0); 
    // bind to bottom center of Rectangle: 
    moveHandle.centerXProperty().bind(rect.xProperty().add(rect.widthProperty().divide(2))); 
    moveHandle.centerYProperty().bind(rect.yProperty().add(rect.heightProperty().divide(2))); 

    // force circles to live in same parent as rectangle: 
    rect.parentProperty().addListener((obs, oldParent, newParent) -> { 
     for (Circle c : Arrays.asList(resizeHandleNW, resizeHandleSE, moveHandle)) { 
      Pane currentParent = (Pane)c.getParent(); 
      if (currentParent != null) { 
       currentParent.getChildren().remove(c); 
      } 
      ((Pane)newParent).getChildren().add(c); 
     } 
    }); 

    Wrapper<Point2D> mouseLocation = new Wrapper<>(); 

    setUpDragging(resizeHandleNW, mouseLocation) ; 
    setUpDragging(resizeHandleSE, mouseLocation) ; 
    setUpDragging(moveHandle, mouseLocation) ; 

    resizeHandleNW.setOnMouseDragged(event -> { 
     if (mouseLocation.value != null) { 
      double deltaX = event.getSceneX() - mouseLocation.value.getX(); 
      double deltaY = event.getSceneY() - mouseLocation.value.getY(); 
      double newX = rect.getX() + deltaX ; 
      if (newX >= handleRadius 
        && newX <= rect.getX() + rect.getWidth() - handleRadius) { 
       rect.setX(newX); 
       rect.setWidth(rect.getWidth() - deltaX); 
      } 
      double newY = rect.getY() + deltaY ; 
      if (newY >= handleRadius 
        && newY <= rect.getY() + rect.getHeight() - handleRadius) { 
       rect.setY(newY); 
       rect.setHeight(rect.getHeight() - deltaY); 
      } 
      mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
     } 
    }); 

    resizeHandleSE.setOnMouseDragged(event -> { 
     if (mouseLocation.value != null) { 
      double deltaX = event.getSceneX() - mouseLocation.value.getX(); 
      double deltaY = event.getSceneY() - mouseLocation.value.getY(); 
      double newMaxX = rect.getX() + rect.getWidth() + deltaX ; 
      if (newMaxX >= rect.getX() 
        && newMaxX <= rect.getParent().getBoundsInLocal().getWidth() - handleRadius) { 
       rect.setWidth(rect.getWidth() + deltaX); 
      } 
      double newMaxY = rect.getY() + rect.getHeight() + deltaY ; 
      if (newMaxY >= rect.getY() 
        && newMaxY <= rect.getParent().getBoundsInLocal().getHeight() - handleRadius) { 
       rect.setHeight(rect.getHeight() + deltaY); 
      } 
      mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
     } 
    }); 

    moveHandle.setOnMouseDragged(event -> { 
     if (mouseLocation.value != null) { 
      double deltaX = event.getSceneX() - mouseLocation.value.getX(); 
      double deltaY = event.getSceneY() - mouseLocation.value.getY(); 
      double newX = rect.getX() + deltaX ; 
      double newMaxX = newX + rect.getWidth(); 
      if (newX >= handleRadius 
        && newMaxX <= rect.getParent().getBoundsInLocal().getWidth() - handleRadius) { 
       rect.setX(newX); 
      } 
      double newY = rect.getY() + deltaY ; 
      double newMaxY = newY + rect.getHeight(); 
      if (newY >= handleRadius 
        && newMaxY <= rect.getParent().getBoundsInLocal().getHeight() - handleRadius) { 
       rect.setY(newY); 
      } 
      mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
     } 

    }); 

    return rect ; 
} 

private void setUpDragging(Circle circle, Wrapper<Point2D> mouseLocation) { 

    circle.setOnDragDetected(event -> { 
     circle.getParent().setCursor(Cursor.CLOSED_HAND); 
     mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
    }); 

    circle.setOnMouseReleased(event -> { 
     circle.getParent().setCursor(Cursor.DEFAULT); 
     mouseLocation.value = null ; 
    }); 
} 

static class Wrapper<T> { T value ; } 

長方形クラス^

public void rotateObject(ActionEvent event) throws IOException { 

    rect.setRotate(90); 
    rect.getTransforms().add(new Rotate(45, rect.getBoundsInParent().getMinX() + 
      (rect.getBoundsInLocal().getWidth()/4), 
      rect.getBoundsInParent().getMinY() + rect.getBoundsInLocal().getHeight()/4)); 

} 

^メソッド回転させるために使用されます。

Answer 1

Groupに「ハンドル」と四角形を入れて、代わりに長方形のグループを回転させる：

import javafx.application.Application; 
import javafx.geometry.Insets; 
import javafx.geometry.Point2D; 
import javafx.geometry.Pos; 
import javafx.scene.Cursor; 
import javafx.scene.Group; 
import javafx.scene.Node; 
import javafx.scene.Scene; 
import javafx.scene.control.Button; 
import javafx.scene.layout.BorderPane; 
import javafx.scene.layout.Pane; 
import javafx.scene.paint.Color; 
import javafx.scene.shape.Circle; 
import javafx.scene.shape.Rectangle; 
import javafx.scene.transform.Rotate; 
import javafx.stage.Stage; 

public class DraggingRectangleExample extends Application { 

    private Node rect ; 

    @Override 
    public void start(Stage primaryStage) { 
     rect = createDraggableRectangle(50, 50, 50, 150); 
     Pane pane = new Pane(rect); 
     pane.setMinSize(600, 600); 
     Button button = new Button("Rotate"); 
     button.setOnAction(e -> rotateObject()); 

     BorderPane root = new BorderPane(pane); 
     BorderPane.setMargin(button, new Insets(10)); 
     BorderPane.setAlignment(button, Pos.CENTER); 
     root.setBottom(button); 

     primaryStage.setScene(new Scene(root)); 
     primaryStage.show(); 
    } 

    public void rotateObject() { 

     rect.setRotate(90); 
     rect.getTransforms().add(new Rotate(45, rect.getBoundsInParent().getMinX() + 
       (rect.getBoundsInLocal().getWidth()/4), 
       rect.getBoundsInParent().getMinY() + rect.getBoundsInLocal().getHeight()/4)); 

    } 

    public Group createDraggableRectangle(double x, double y, double width, double height) { 
     final double handleRadius = 20 ; 
     final double handleRadius2 = 30 ; 

     Rectangle rect = new Rectangle(x, y, width, height); 

     // top left resize handle: 
     Circle resizeHandleNW = new Circle(handleRadius, Color.RED); 
     // bind to top left cornerof Rectangle: 
     resizeHandleNW.centerXProperty().bind(rect.xProperty()); 
     resizeHandleNW.centerYProperty().bind(rect.yProperty()); 

     // bottom right resize handle: 
     Circle resizeHandleSE = new Circle(handleRadius, Color.RED); 
     // bind to bottom right corner of Rectangle: 
     resizeHandleSE.centerXProperty().bind(rect.xProperty().add(rect.widthProperty())); 
     resizeHandleSE.centerYProperty().bind(rect.yProperty().add(rect.heightProperty())); 

     // move handle: 
     Circle moveHandle = new Circle(handleRadius2,Color.RED); 
     moveHandle.setOpacity(0.0); 
     // bind to bottom center of Rectangle: 
     moveHandle.centerXProperty().bind(rect.xProperty().add(rect.widthProperty().divide(2))); 
     moveHandle.centerYProperty().bind(rect.yProperty().add(rect.heightProperty().divide(2))); 

     // force circles to live in same parent as rectangle: 
//  rect.parentProperty().addListener((obs, oldParent, newParent) -> { 
//   for (Circle c : Arrays.asList(resizeHandleNW, resizeHandleSE, moveHandle)) { 
//    Pane currentParent = (Pane)c.getParent(); 
//    if (currentParent != null) { 
//     currentParent.getChildren().remove(c); 
//    } 
//    ((Pane)newParent).getChildren().add(c); 
//   } 
//  }); 

     Group group = new Group(rect, resizeHandleNW, resizeHandleSE, moveHandle); 


     Wrapper<Point2D> mouseLocation = new Wrapper<>(); 

     setUpDragging(resizeHandleNW, mouseLocation) ; 
     setUpDragging(resizeHandleSE, mouseLocation) ; 
     setUpDragging(moveHandle, mouseLocation) ; 

     resizeHandleNW.setOnMouseDragged(event -> { 
      if (mouseLocation.value != null) { 
       double deltaX = event.getSceneX() - mouseLocation.value.getX(); 
       double deltaY = event.getSceneY() - mouseLocation.value.getY(); 
       double newX = rect.getX() + deltaX ; 
       if (newX >= handleRadius 
         && newX <= rect.getX() + rect.getWidth() - handleRadius) { 
        rect.setX(newX); 
        rect.setWidth(rect.getWidth() - deltaX); 
       } 
       double newY = rect.getY() + deltaY ; 
       if (newY >= handleRadius 
         && newY <= rect.getY() + rect.getHeight() - handleRadius) { 
        rect.setY(newY); 
        rect.setHeight(rect.getHeight() - deltaY); 
       } 
       mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
      } 
     }); 

     resizeHandleSE.setOnMouseDragged(event -> { 
      if (mouseLocation.value != null) { 
       double deltaX = event.getSceneX() - mouseLocation.value.getX(); 
       double deltaY = event.getSceneY() - mouseLocation.value.getY(); 
       double newMaxX = rect.getX() + rect.getWidth() + deltaX ; 
       if (newMaxX >= rect.getX() 
         && newMaxX <= group.getParent().getBoundsInLocal().getWidth() - handleRadius) { 
        rect.setWidth(rect.getWidth() + deltaX); 
       } 
       double newMaxY = rect.getY() + rect.getHeight() + deltaY ; 
       if (newMaxY >= rect.getY() 
         && newMaxY <= group.getParent().getBoundsInLocal().getHeight() - handleRadius) { 
        rect.setHeight(rect.getHeight() + deltaY); 
       } 
       mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
      } 
     }); 

     moveHandle.setOnMouseDragged(event -> { 
      if (mouseLocation.value != null) { 
       double deltaX = event.getSceneX() - mouseLocation.value.getX(); 
       double deltaY = event.getSceneY() - mouseLocation.value.getY(); 
       double newX = rect.getX() + deltaX ; 
       double newMaxX = newX + rect.getWidth(); 
       if (newX >= handleRadius 
         && newMaxX <=group.getParent().getBoundsInLocal().getWidth() - handleRadius) { 
        rect.setX(newX); 
       } 
       double newY = rect.getY() + deltaY ; 
       double newMaxY = newY + rect.getHeight(); 
       if (newY >= handleRadius 
         && newMaxY <=group.getParent().getBoundsInLocal().getHeight() - handleRadius) { 
        rect.setY(newY); 
       } 
       mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
      } 

     }); 


     return group ; 
    } 

    private void setUpDragging(Circle circle, Wrapper<Point2D> mouseLocation) { 

     circle.setOnDragDetected(event -> { 
      circle.getParent().setCursor(Cursor.CLOSED_HAND); 
      mouseLocation.value = new Point2D(event.getSceneX(), event.getSceneY()); 
     }); 

     circle.setOnMouseReleased(event -> { 
      circle.getParent().setCursor(Cursor.DEFAULT); 
      mouseLocation.value = null ; 
     }); 
    } 



    static class Wrapper<T> { T value ; } 

    public static void main(String[] args) { 
     launch(args); 
    } 
}