有没有办法在已经裁剪的节点上添加混合模式(或混合效果)?如果我尝试将剪辑应用于已经设置了混合模式的节点,那么剪辑会覆盖混合模式并且无法正常工作。以下是一些示例代码以重现问题:
package display.fx.demo;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.effect.BlendMode;
import javafx.scene.layout.Pane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Rectangle;
import javafx.stage.Stage;
public class BlendModeClipProblem extends Application {
public Rectangle blueRect = new Rectangle(0, 0, 30, 30);
public Rectangle redRect = new Rectangle(15, 15, 30, 30);
@Override
public void start(final Stage stage)
throws Exception {
final Pane pane = new Pane();
final Scene scene = new Scene(pane);
pane.getChildren().add(blueRect);
pane.getChildren().add(redRect);
blueRect.setFill(Color.BLUE);
redRect.setFill(Color.RED);
redRect.setBlendMode(BlendMode.ADD);
// Comment this next line to see blending
redRect.setClip(new Rectangle(15, 15, 20, 20));
stage.setScene(scene);
stage.show();
}
}
swing
中发生这种情况时,我们可以调用repaint()
,但在JavaFx中,我使用缓存,因为我们不能显式地调用repaint()。 - Akila