package org.litesoft.GWT.forms.client.components.nonpublic;

import com.google.gwt.user.client.ui.*;
import org.litesoft.GWT.client.widgets.*;
import org.litesoft.GWT.client.widgets.nonpublic.*;

public class WidgetStruct implements HasAlignment
{
    protected Widget mWidget;
    protected boolean mSpacer = false;

    protected boolean mStretchableHorizontally = false;
    protected boolean mFloodsX = false;
    protected HorizontalAlignmentConstant mHorizontalAlignment = null;

    protected boolean mStretchableVertically = false;
    protected boolean mFloodsY = false;
    protected VerticalAlignmentConstant mVerticalAlignment = null;

    public WidgetStruct( Widget pWidget )
    {
        mWidget = pWidget;
        if ( pWidget instanceof ISizeableWidget )
        {
            ISizeableWidget w = (ISizeableWidget) pWidget;
            mStretchableHorizontally = w.getWidthHelper().isStretchable();
            mStretchableVertically = w.getHeightHelper().isStretchable();
            mSpacer = (pWidget instanceof SizeableSpacer);
        }
    }

    public Widget getWidget()
    {
        return mWidget;
    }

    public boolean isSpacer()
    {
        return mSpacer;
    }

    public boolean isStretchableHorizontally()
    {
        return mStretchableHorizontally;
    }

    public boolean isFloodsX()
    {
        return mFloodsX;
    }

    public boolean hasHorizontalAlignment()
    {
        return (mHorizontalAlignment != null);
    }

    public HorizontalAlignmentConstant getHorizontalAlignment()
    {
        return mHorizontalAlignment;
    }

    public void setHorizontalAlignment( HorizontalAlignmentConstant align )
    {
        throw new UnsupportedOperationException( "HorizontalAlignment auto determined" );
    }

    public boolean isStretchableVertically()
    {
        return mStretchableVertically;
    }

    public boolean isFloodsY()
    {
        return mFloodsY;
    }

    public boolean hasVerticalAlignment()
    {
        return (mVerticalAlignment != null);
    }

    public VerticalAlignmentConstant getVerticalAlignment()
    {
        return mVerticalAlignment;
    }

    public void setVerticalAlignment( VerticalAlignmentConstant align )
    {
        throw new UnsupportedOperationException( "VerticalAlignment auto determined" );
    }

    public void center()
    {
        if ( !isStretchableHorizontally() && !isFloodsX() && (mHorizontalAlignment == null) )
        {
            mHorizontalAlignment = ALIGN_CENTER;
        }
        if ( !isStretchableVertically() && !isFloodsY() && (mVerticalAlignment == null) )
        {
            mVerticalAlignment = ALIGN_MIDDLE;
        }
    }
}