QLWidgetFetcher.java

package org.uva.student.calinwouter.qlqls.ql.gui;

import org.uva.student.calinwouter.qlqls.ql.gui.widgets.IWidget;
import org.uva.student.calinwouter.qlqls.ql.gui.widgets.LabelWithWidgetWidget;
import org.uva.student.calinwouter.qlqls.ql.gui.widgets.CheckboxWidget;
import org.uva.student.calinwouter.qlqls.ql.gui.widgets.IntboxWidget;
import org.uva.student.calinwouter.qlqls.ql.gui.widgets.TextboxWidget;
import org.uva.student.calinwouter.qlqls.ql.QLInterpreter;
import org.uva.student.calinwouter.qlqls.ql.interfaces.ITypeCallback;
import org.uva.student.calinwouter.qlqls.ql.interfaces.ITypeDescriptor;
import org.uva.student.calinwouter.qlqls.ql.model.StateWrapper;
import org.uva.student.calinwouter.qlqls.ql.model.StaticQuestionField;

/**
 * This class is used to fetch the right widget based on the type descriptor
 */
public class QLWidgetFetcher implements ITypeCallback {
    private final QLInterpreter qlInterpreter;
    private final StaticQuestionField staticQuestionField;
    private final StateWrapper stateWrapper;
    private IWidget widget;

    private void createLabelWithWidgetWidget(IWidget embeddedWidget) {
        widget = new LabelWithWidgetWidget(staticQuestionField.getLabel(), staticQuestionField.getVariable(), embeddedWidget, stateWrapper);
    }

    public void createWidget(ITypeDescriptor typeDescriptor) {
        typeDescriptor.callTypeMethod(this);
    }

    public void usesBoolean() {
        final String variableName = staticQuestionField.getVariable();
        createLabelWithWidgetWidget(new CheckboxWidget(variableName, qlInterpreter, stateWrapper));
    }

    public void usesInteger() {
        final String variableName = staticQuestionField.getVariable();
        createLabelWithWidgetWidget(new IntboxWidget(variableName, qlInterpreter, stateWrapper));
    }

    public void usesString() {
        final String variableName = staticQuestionField.getVariable();
        createLabelWithWidgetWidget(new TextboxWidget(variableName, qlInterpreter, stateWrapper));
    }

    public IWidget getWidget() {
        return widget;
    }

    public QLWidgetFetcher(QLInterpreter qlInterpreter, StaticQuestionField staticQuestionField, StateWrapper stateWrapper) {
        this.qlInterpreter = qlInterpreter;
        this.staticQuestionField = staticQuestionField;
        this.stateWrapper = stateWrapper;
    }
}