AbstractQLSWidget.java

package org.fugazi.qls.ast.widget;

import org.fugazi.ql.ast.AbstractASTNode;
import org.fugazi.ql.ast.type.Type;
import org.fugazi.ql.evaluator.expression_value.ExpressionValue;
import org.fugazi.ql.gui.ui_element.UIForm;
import org.fugazi.ql.gui.widgets.IWidget;
import org.fugazi.ql.gui.widgets.WidgetsEventListener;
import org.fugazi.qls.ast.IQLSASTVisitor;
import org.fugazi.qls.ast.style.Style;
import org.fugazi.qls.ast.style.style_property.*;
import org.fugazi.qls.ast.widget.widget_types.IWidgetType;
import org.fugazi.qls.ast.widget.widget_types.UndefinedWidgetType;

import javax.swing.*;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public abstract class AbstractQLSWidget extends AbstractASTNode implements IWidget {

    protected final static String DEFAULT_FONT = "Arial";
    protected final static int DEFAULT_FONT_SIZE = 14;
    protected final static int DEFAULT_COLOR = 0x000000;
    protected final static int DEFAULT_WIDTH = 68;

    protected IWidgetType type;
    protected JComponent component;
    protected JLabel componentLabel;

    public AbstractQLSWidget() {
        this.type   = new UndefinedWidgetType();
        this.component = new JPanel();
        this.componentLabel = new JLabel();
    }

    public void setLabel(String _label) {
        this.componentLabel.setText(_label);
    }
    
    public IWidgetType getType() {
        return this.type;
    }

    public Font getDefaultFont() {
        return new Font(DEFAULT_FONT);
    }

    public FontSize getDefaultFontSize() {
        return new FontSize(DEFAULT_FONT_SIZE);
    }
    
    public Color getDefaultColor() {
        return new Color(DEFAULT_COLOR);
    }

    public Width getDefaultWidth() {
        return new Width(DEFAULT_WIDTH);
    }
    
    public Style getDefaultStyle() {
        List<StyleProperty> defaultStyles = 
                new ArrayList<StyleProperty>(
                    Arrays.asList(
                            getDefaultFont(),
                            getDefaultFontSize(),
                            getDefaultColor(),
                            getDefaultWidth())
                    );
        return new Style(defaultStyles);
    }

    public void resetStyleToDefault() {
        Style style = this.getDefaultStyle();
        this.applyStyle(style);
    }

    public abstract void applyStyle(Style _style);

    @Override
    public void render(UIForm _canvas) {
        _canvas.addWidget(this.component);
    }

    @Override
    public void suppress(UIForm _canvas){
        _canvas.removeWidget(this.component);
    }

    @Override
    public abstract ExpressionValue getWidgetValue();

    @Override
    public abstract void setWidgetValue(ExpressionValue _value);

    @Override
    public abstract void addEventListener(WidgetsEventListener _listener);
    
    @Override
    public abstract void setReadOnly(boolean _isReadonly);

    public abstract List<Type> getSupportedQuestionTypes();

    public abstract <T> T accept(IQLSASTVisitor<T> visitor);

    public boolean isUndefined() {
        return false;
    }
}