BooleanPrimitive.java

package nl.uva.bromance.QL.expressions.primitives;

import javafx.scene.control.CheckBox;
import javafx.scene.layout.VBox;
import nl.uva.bromance.QL.expressions.unary.Primitive;
import nl.uva.bromance.QL.gui.QLGUI;
import nl.uva.bromance.QL.typechecking.SymbolTable;

public class BooleanPrimitive extends Primitive
{
    private boolean value;

    public Boolean getValue()
    {
        return value;
    }

    public BooleanPrimitive(boolean value, int lineNumber)
    {
        super(lineNumber);
        this.value = value;
    }

    public BooleanPrimitive or(BooleanPrimitive rhs, int lineNumber)
    {
        return new BooleanPrimitive(this.value || rhs.getValue(), lineNumber);
    }

    public BooleanPrimitive and(BooleanPrimitive rhs, int lineNumber)
    {
        return new BooleanPrimitive(this.value && rhs.getValue(), lineNumber);
    }

    @Override
    public BooleanPrimitive isEqual(Primitive rhs, int lineNumber)
    {
        return new BooleanPrimitive(value == ((BooleanPrimitive)rhs).getValue(), lineNumber);
    }

    @Override
    public void drawQuestion(VBox questionArea, QLGUI qlGui)
    {
        CheckBox cb = new CheckBox();
        cb.getStyleClass().add("question");
        cb.setSelected(value);

        if (qlGui.getFocusUuid() == uuid)
            qlGui.setFocusedNode(cb);

        // Disable any input other than numbers
        cb.selectedProperty().addListener((observable, oldValue, newValue) -> {
            value = newValue;
            qlGui.renderWithFocus(uuid);
        });

        questionArea.getChildren().add(cb);
    }

    public void invert()
    {
        this.value = !this.value;
    }

    @Override
    public Primitive evaluate(SymbolTable s)
    {
        return this;
    }

    public static BooleanPrimitive defaultValue(int lineNumber)
    {
        return new BooleanPrimitive(false,lineNumber);
    }
}