new-shapes/src/main/java/ovh/gasser/newshapes/shapes/STriangle.java

package ovh.gasser.newshapes.shapes;

import ovh.gasser.newshapes.ShapeVisitor;
import ovh.gasser.newshapes.attributes.ColorAttributes;
import ovh.gasser.newshapes.attributes.SelectionAttributes;

import java.awt.*;

public class STriangle extends AbstractShape {
    private STriangle(int x, int y, int size){
        super(new Rectangle(x, y, size, size));
    }

    @Override
    public void accept(ShapeVisitor visitor) {
        visitor.visitTriangle(this);
    }

    @Override
    public void resize(ResizeHandle handle, int dx, int dy) {
        int delta = Math.max(Math.abs(dx), Math.abs(dy));

        boolean shrink = switch (handle) {
            case E -> dx < 0;
            case W -> dx > 0;
            case N -> dy > 0;
            case S -> dy < 0;
            case SE -> (dx < 0 || dy < 0);
            case NW -> (dx > 0 || dy > 0);
            case NE -> (dx < 0 || dy > 0);
            case SW -> (dx > 0 || dy < 0);
            default -> false;
        };

        int sizeChange = shrink ? -delta : delta;
        
        switch (handle) {
            case SE, E, W -> {
                bounds.width += sizeChange;
                bounds.height += sizeChange;
            }
            case NW -> {
                bounds.x -= sizeChange;
                bounds.width += sizeChange;
                bounds.y -= sizeChange;
                bounds.height += sizeChange;
            }
            case NE -> {
                bounds.y -= sizeChange;
                bounds.width += sizeChange;
                bounds.height += sizeChange;
            }
            case SW -> {
                bounds.x -= sizeChange;
                bounds.width += sizeChange;
                bounds.height += sizeChange;
            }
            case N, S -> {
                bounds.width += sizeChange;
                bounds.height += sizeChange;
            }
        }

        if (bounds.width < 1) bounds.width = 1;
        if (bounds.height < 1) bounds.height = 1;
    }

    @Override
    public Shape clone() {
        var color = (ColorAttributes) getAttributes(ColorAttributes.ID);
        Color strokeColor = color != null ? color.strokedColor : Color.BLACK;
        Color fillColor = color != null ? color.filledColor : Color.BLACK;
        return STriangle.create(super.getBounds().x, super.getBounds().y, super.getBounds().height, fillColor, strokeColor);
    }

    public static STriangle create(int x, int y, int size, Color filledColor, Color strokedColor) {
        var tri = new STriangle(x, y, size);
        tri.addAttributes(new SelectionAttributes());
        tri.addAttributes(new ColorAttributes(true, true, filledColor,  strokedColor));
        return tri;
    }
}