停止形状重叠-JavaFX
我有一个程序,我可以添加多个可以在场景中移动、调整大小和旋转的矩形。我想实现某种碰撞检测,这样如果它们发生碰撞,选定的形状就不会与现有形状重叠 问题:停止形状重叠-JavaFX,javafx,nodes,collision-detection,shapes,overlapping,Javafx,Nodes,Collision Detection,Shapes,Overlapping,我有一个程序,我可以添加多个可以在场景中移动、调整大小和旋转的矩形。我想实现某种碰撞检测,这样如果它们发生碰撞,选定的形状就不会与现有形状重叠 问题: import javafx.geometry.Point2D; import javafx.scene.Cursor; import javafx.scene.Group; import javafx.scene.paint.Color; import javafx.scene.shape.Circle; import javafx.scene.
import javafx.geometry.Point2D;
import javafx.scene.Cursor;
import javafx.scene.Group;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
public class DraggingRectangle {
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);
resizeHandleNW.setOpacity(0);
// bind to top left cornerof Rectangle:
resizeHandleNW.centerXProperty().bind(rect.xProperty());
resizeHandleNW.centerYProperty().bind(rect.yProperty());
resizeHandleNW.setStyle("-fx-cursor: NW_RESIZE; ");
// bottom right resize handle:
Circle resizeHandleSE = new Circle(handleRadius, Color.RED);
resizeHandleSE.setOpacity(0);
// bind to bottom right corner of Rectangle:
resizeHandleSE.centerXProperty().bind(rect.xProperty().add(rect.widthProperty()));
resizeHandleSE.centerYProperty().bind(rect.yProperty().add(rect.heightProperty()));
resizeHandleSE.setStyle("-fx-cursor: SE_RESIZE; ");
// move handle:
Circle moveHandle = new Circle(handleRadius2,Color.RED);
moveHandle.setOpacity(0);
moveHandle.setStyle("-fx-cursor: CLOSED_HAND;");
// 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)));
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 ; }
}
if (treeview.getSelectionModel().getSelectedItem() == green) {
Group group = drag.createDraggableRectangle(200, 60, 180, 90);
group.getChildren().get(0).setStyle(
"-fx-fill: green;");
container2.getChildren().addAll(group);
group.setOnMouseClicked(e -> onShapeSelected(e));
}
期望值:
import javafx.geometry.Point2D;
import javafx.scene.Cursor;
import javafx.scene.Group;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
public class DraggingRectangle {
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);
resizeHandleNW.setOpacity(0);
// bind to top left cornerof Rectangle:
resizeHandleNW.centerXProperty().bind(rect.xProperty());
resizeHandleNW.centerYProperty().bind(rect.yProperty());
resizeHandleNW.setStyle("-fx-cursor: NW_RESIZE; ");
// bottom right resize handle:
Circle resizeHandleSE = new Circle(handleRadius, Color.RED);
resizeHandleSE.setOpacity(0);
// bind to bottom right corner of Rectangle:
resizeHandleSE.centerXProperty().bind(rect.xProperty().add(rect.widthProperty()));
resizeHandleSE.centerYProperty().bind(rect.yProperty().add(rect.heightProperty()));
resizeHandleSE.setStyle("-fx-cursor: SE_RESIZE; ");
// move handle:
Circle moveHandle = new Circle(handleRadius2,Color.RED);
moveHandle.setOpacity(0);
moveHandle.setStyle("-fx-cursor: CLOSED_HAND;");
// 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)));
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 ; }
}
if (treeview.getSelectionModel().getSelectedItem() == green) {
Group group = drag.createDraggableRectangle(200, 60, 180, 90);
group.getChildren().get(0).setStyle(
"-fx-fill: green;");
container2.getChildren().addAll(group);
group.setOnMouseClicked(e -> onShapeSelected(e));
}
拖动矩形类:
import javafx.geometry.Point2D;
import javafx.scene.Cursor;
import javafx.scene.Group;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Rectangle;
public class DraggingRectangle {
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);
resizeHandleNW.setOpacity(0);
// bind to top left cornerof Rectangle:
resizeHandleNW.centerXProperty().bind(rect.xProperty());
resizeHandleNW.centerYProperty().bind(rect.yProperty());
resizeHandleNW.setStyle("-fx-cursor: NW_RESIZE; ");
// bottom right resize handle:
Circle resizeHandleSE = new Circle(handleRadius, Color.RED);
resizeHandleSE.setOpacity(0);
// bind to bottom right corner of Rectangle:
resizeHandleSE.centerXProperty().bind(rect.xProperty().add(rect.widthProperty()));
resizeHandleSE.centerYProperty().bind(rect.yProperty().add(rect.heightProperty()));
resizeHandleSE.setStyle("-fx-cursor: SE_RESIZE; ");
// move handle:
Circle moveHandle = new Circle(handleRadius2,Color.RED);
moveHandle.setOpacity(0);
moveHandle.setStyle("-fx-cursor: CLOSED_HAND;");
// 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)));
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 ; }
}
if (treeview.getSelectionModel().getSelectedItem() == green) {
Group group = drag.createDraggableRectangle(200, 60, 180, 90);
group.getChildren().get(0).setStyle(
"-fx-fill: green;");
container2.getChildren().addAll(group);
group.setOnMouseClicked(e -> onShapeSelected(e));
}
“组”包含我的形状以及要移动和调整大小的控制柄。“Container2”是我的主播的fx:id
谢谢有人知道吗?