// This Source Code is in the Public Domain per: http://unlicense.org
package org.litesoft.GWT.client.widgets;

import org.litesoft.GWT.client.widgets.nonpublic.*;
import org.litesoft.core.*;

import com.google.gwt.user.client.*;
import com.google.gwt.user.client.ui.*;

public class LeftCenterRightHorizontalPanel extends AbstractSizeableComposite {
    private static final String LEFT_ID_PREFIX = "LCRHP_LEFT_";
    private static final String CENTER_ID_PREFIX = "LCRHP_CENTER_";
    private static final String RIGHT_ID_PREFIX = "LCRHP_RIGHT_";

    private HorizontalPanel mLeftContainer = new HorizontalPanel();
    private HorizontalPanel mCenterContainer = new HorizontalPanel();
    private HorizontalPanel mRightContainer = new HorizontalPanel();

    private static final String STYLE_LEFT = "Left";
    private static final String STYLE_CENTER = "Center";
    private static final String STYLE_RIGHT = "Right";

    public LeftCenterRightHorizontalPanel( String pCenter_valign ) {
        int zUniqueID = StaticSimpleIdSource.getNext();
        HTMLPanel zPanel = new HTMLPanel( "<table width='100%' cellpadding='0' cellspacing='0'><tr>" + //
                                          "<td align='left'   width='30%' valign='middle' id='" + LEFT_ID_PREFIX + zUniqueID + "'></td>" + //
                                          "<td align='center' width='40%' valign='" + pCenter_valign + "' id='" + CENTER_ID_PREFIX + zUniqueID + "'></td>" + //
                                          "<td align='right'  width='30%' valign='middle' id='" + RIGHT_ID_PREFIX + zUniqueID + "'></td>" + //
                                          "</tr></table>" );

        mLeftContainer.addStyleName( STYLE_LEFT );
        mCenterContainer.addStyleName( STYLE_CENTER );
        mRightContainer.addStyleName( STYLE_RIGHT );

        zPanel.add( mLeftContainer, LEFT_ID_PREFIX + zUniqueID );
        zPanel.add( mCenterContainer, CENTER_ID_PREFIX + zUniqueID );
        zPanel.add( mRightContainer, RIGHT_ID_PREFIX + zUniqueID );

        initWidget( new ConstrainingSizeableOuterLayers( zPanel, "LeftCenterRightHorizontalPanel" ) );

        LLstretchableHorizontally();
    }

    public LeftCenterRightHorizontalPanel() {
        this( "middle" );
    }

    public LeftCenterRightHorizontalPanel style( String pStyleName ) {
        addStyleName( pStyleName );
        return this;
    }

    public void setLeftValign( HasVerticalAlignment.VerticalAlignmentConstant pValign ) {
        CommonElementHelper.setTDvAlign( DOM.getParent( mLeftContainer.getElement() ), pValign );
    }

    public HorizontalPanel getLeftContainer() {
        return mLeftContainer;
    }

    public LeftCenterRightHorizontalPanel addLeft( Widget pWidget ) {
        mLeftContainer.add( pWidget );
        return this;
    }

    public void setCenterValign( HasVerticalAlignment.VerticalAlignmentConstant pValign ) {
        CommonElementHelper.setTDvAlign( DOM.getParent( mCenterContainer.getElement() ), pValign );
    }

    public HorizontalPanel getCenterContainer() {
        return mCenterContainer;
    }

    public LeftCenterRightHorizontalPanel addCenter( Widget pWidget ) {
        mCenterContainer.add( pWidget );
        return this;
    }

    public void setRightValign( HasVerticalAlignment.VerticalAlignmentConstant pValign ) {
        CommonElementHelper.setTDvAlign( DOM.getParent( mRightContainer.getElement() ), pValign );
    }

    public HorizontalPanel getRightContainer() {
        return mRightContainer;
    }

    public LeftCenterRightHorizontalPanel addRight( Widget pWidget ) {
        mRightContainer.add( pWidget );
        return this;
    }
}