How to create a partial border(with a hole)?

Question

I wrote code in JavaFX and used CSS for setting styles for the above issue. The following code made borders for an AnchorPane that are 2 pixels wide:

    AnchorP         


        

Answer 1

Sir, Do you strictly require CSS for this? java can do it, using Shape and Borders

Nikitoslav.java

public class Nikitoslav extends Application {

@Override
public void start(Stage primaryStage) throws Exception {

    Pane g = new Pane();        
    g.setBackground(new Background(new BackgroundFill(Color.YELLOW,
            null, null)));
    g.relocate(20, 20);
    BorderStroke bs = new BorderStroke(Color.RED, Color.RED, Color.RED, Color.RED,//the paint around th four corners
            BorderStrokeStyle.SOLID, BorderStrokeStyle.SOLID, BorderStrokeStyle.SOLID, BorderStrokeStyle.SOLID,
            null, BorderStroke.THIN, null);
    g.setBorder(new Border(bs));
    Path p = new  Path();
    p.getElements().addAll(new MoveTo(1, 0),new HLineTo(0),new VLineTo(4), new HLineTo(4), new VLineTo(0),
            //creating a rectangle
            new HLineTo(3)
    );
    g.setShape(p);
    g.setPrefSize(300, 300);
    primaryStage.setScene(new Scene(new Group(g),500,500));
    primaryStage.show();
    g.setPrefSize(400, 400);
}


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

@Override
public void init() throws Exception {
    // TODO Auto-generated method stub
    super.init();
}

@Override
public void stop() throws Exception {
    // TODO Auto-generated method stub
    super.stop();
 }

}

With this you don't need nested Backgrounds or an array of Backgrounds-(guess that will improve performance)

To explain my code, well, i created my Borders using the BorderStroke which Paint fills for top-right-bottom-left respectively, specified the type of Color and style, after i created an open rectangle with the PathElements. From the x axis i started from 1 then to 0 the drew a vertical line to 4, the length of the rectangle and drew the bottom width also 4and drew from a vertical line from length 4 to 0 then drew from width 4 to 3 and left points 2 being the hole

Hope it helps