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

import org.litesoft.GWT.client.widgets.*;
import org.litesoft.GWT.client.widgets.nonpublic.*;
import org.litesoft.GWT.forms.client.components.factories.*;
import org.litesoft.GWT.forms.client.components.nonpublic.*;
import org.litesoft.commonfoundation.base.*;
import org.litesoft.ui.def.nonpublic.*;
import org.litesoft.ui.def.nonpublic.support.*;

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

public class RelSubFormRowInstanceRendererImpl extends AbstractFormComponentRenderer {
    private RelSubFormRowInstanceComponentHandler mRelSubFormRowInstanceComponentHandler;

    public RelSubFormRowInstanceRendererImpl( FormComponentFactory pFormComponentFactory, FormMetaData pFormMetaData, //
                                              RelSubFormRowInstanceComponentHandler pRelSubFormRowInstanceComponentHandler ) {
        super( pFormComponentFactory, pFormMetaData, pRelSubFormRowInstanceComponentHandler );
        mRelSubFormRowInstanceComponentHandler = pRelSubFormRowInstanceComponentHandler;
    }

    public Widget renderRow( UiRelSubFormDef pSubFormDef, boolean pNoRemoveRow, String pRowKey, int pAt ) {
        Confirm.isNotNull( "UiRelSubFormDef", pSubFormDef );
        Widget widget;
        DefWidgetStruct[] zChildren = renderChildren( pSubFormDef );
        switch ( zChildren.length ) {
            case 0:
                widget = new Label( "Row(" + pAt + "): " + pRowKey + (pNoRemoveRow ? " - No Remove Row" : "") );
                break;
            case 1:
                widget = zChildren[0].getWidget();
                break;
            default:
                throw new IllegalStateException( "RelSubForm did NOT have 1 child" );
        }
        boolean isVerticallyStretchable = (widget instanceof ISizeableWidget) && // First Left then Right
                                          ((ISizeableWidget) widget).getHeightHelper().isStretchable();
        //        SizeableBorderedSimplePanel zWrapperPanel = new SizeableBorderedSimplePanel( true );
        SizeableSimplePanel zWrapperPanel = new SizeableSimplePanel( true );
        zWrapperPanel.stretchableHorizontally().add( widget );
        if ( isVerticallyStretchable ) {
            zWrapperPanel.stretchableVertically();
        }
        if ( pNoRemoveRow ) {
            return zWrapperPanel.style( SUB_FORM_ROW_ONLY_CONTAINER );
        }
        //        SizeableBorderedHorizontalPanel zOuterPanel = new SizeableBorderedHorizontalPanel( true );
        SizeableHorizontalPanel zOuterPanel = new SizeableHorizontalPanel( true );
        if ( isVerticallyStretchable ) {
            zOuterPanel.stretchableVertically();
        }
        zOuterPanel.stretchableHorizontally();
        Widget zRemoveButton = createRowRemoveButton( "RemoveRow" );
        zOuterPanel.add( zRemoveButton );
        zOuterPanel.setCellVerticalAlignment( zRemoveButton, HasVerticalAlignment.ALIGN_MIDDLE );
        zOuterPanel.add( zWrapperPanel );
        zWrapperPanel.style( SUB_FORM_ROW_INNER_CONTAINER );
        return zOuterPanel.style( SUB_FORM_ROW_OUTER_CONTAINER );
    }

    private Widget createRowRemoveButton( String pActionID ) {
        return createImageFormButton( pActionID, SUB_FORM_REMOVE_ROW_BUTTON );
    }

    protected RelSubFormInstanceRenderer createRelSubFormInstanceRenderer( UiRelSubFormDef pSubFormDef,
                                                                           FormMetaData pSubFormMetaData,
                                                                           boolean pNoRemoveRow,
                                                                           SubFormRowCarrier pRowCarrier ) {
        RelSubFormInstanceComponentHandler zHandler =
                mRelSubFormRowInstanceComponentHandler.createRelSubFormInstanceComponentHandler( pSubFormDef, //
                                                                                                 pSubFormMetaData, //
                                                                                                 pRowCarrier );
        return new RelSubFormInstanceRendererImpl( mFormComponentFactory, pSubFormMetaData, pSubFormDef,
                                                   pNoRemoveRow, zHandler );
    }
}