tabular-data-expression-widget/src/main/java/org/gcube/portlets/user/td/expressionwidget/client/ReplaceColumnByExpressionPanel.java

package org.gcube.portlets.user.td.expressionwidget.client;

import org.gcube.portlets.user.td.expressionwidget.client.resources.ExpressionResources;
import org.gcube.portlets.user.td.gwtservice.shared.tr.ColumnData;
import org.gcube.portlets.user.td.widgetcommonevent.shared.expression.C_Expression;

import com.allen_sauer.gwt.log.client.Log;
import com.google.web.bindery.event.shared.EventBus;
import com.sencha.gxt.cell.core.client.ButtonCell.IconAlign;
import com.sencha.gxt.core.client.dom.ScrollSupport.ScrollMode;
import com.sencha.gxt.core.client.util.Margins;
import com.sencha.gxt.widget.core.client.FramedPanel;
import com.sencha.gxt.widget.core.client.button.TextButton;
import com.sencha.gxt.widget.core.client.container.BoxLayoutContainer.BoxLayoutData;
import com.sencha.gxt.widget.core.client.container.BoxLayoutContainer.BoxLayoutPack;
import com.sencha.gxt.widget.core.client.container.HBoxLayoutContainer;
import com.sencha.gxt.widget.core.client.container.HBoxLayoutContainer.HBoxLayoutAlign;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
import com.sencha.gxt.widget.core.client.event.SelectEvent;
import com.sencha.gxt.widget.core.client.event.SelectEvent.SelectHandler;
import com.sencha.gxt.widget.core.client.form.FieldLabel;
import com.sencha.gxt.widget.core.client.form.FieldSet;
import com.sencha.gxt.widget.core.client.form.TextField;

/**
 * 
 * @author "Giancarlo Panichi" <a
 *         href="mailto:g.panichi@isti.cnr.it">g.panichi@isti.cnr.it</a>
 * 
 */
public class ReplaceColumnByExpressionPanel extends FramedPanel {
	protected static final String WIDTH = "648px";
	protected static final String HEIGHT = "364px";
	
	protected static final String CONDITIONWIDTH = "612px";
	protected static final String CONDITIONHEIGHT = "150px";
	
	protected EventBus eventBus;

	protected ReplaceColumnByExpressionDialog parent;

	protected ColumnData column;

	private TextButton btnApply;
	private TextButton btnClose;

	private FieldSet conditionsFieldSet;
	private ConditionWidget conditionWidget;
	private TextField replaceValue;

	public ReplaceColumnByExpressionPanel(
			ReplaceColumnByExpressionDialog parent, ColumnData column,
			EventBus eventBus) {
		super();
		this.parent = parent;
		this.column = column;
		this.eventBus = eventBus;
		Log.debug(column.toString());
		init();
		create();
	}

	protected void init() {
		setWidth(WIDTH);
		setHeight(HEIGHT);
		setBodyBorder(false);
		setHeaderVisible(false);
		// Important: fixed rendering of widgets
		forceLayoutOnResize = true;

	}

	protected void create() {
		VerticalLayoutContainer basicLayout = new VerticalLayoutContainer();
		basicLayout.setAdjustForScroll(true);
		basicLayout.setScrollMode(ScrollMode.AUTO);

		HBoxLayoutContainer flowButton = new HBoxLayoutContainer();
		flowButton.setHBoxLayoutAlign(HBoxLayoutAlign.MIDDLE);
		flowButton.setPack(BoxLayoutPack.CENTER);

		// Properties
		FieldSet properties = new FieldSet();
		properties.setHeadingText("Properties");
		properties.setCollapsible(false);

		VerticalLayoutContainer propertiesLayout = new VerticalLayoutContainer();
		properties.add(propertiesLayout);

		TextField columnName = new TextField();
		columnName.setToolTip("Column");
		columnName.setReadOnly(true);
		columnName.setValue(column.getLabel());
		propertiesLayout.add(new FieldLabel(columnName, "Column"),
				new VerticalLayoutData(1, -1));

		// Conditions
		conditionsFieldSet = new FieldSet();
		conditionsFieldSet.setHeadingText("Conditions");
		conditionsFieldSet.setCollapsible(false);

		conditionWidget = new ConditionWidget(column,CONDITIONWIDTH, CONDITIONHEIGHT);
		Log.debug("ConditionWidget" + conditionWidget);
		conditionsFieldSet.add(conditionWidget);

		// Value
		FieldSet replaceValueFieldSet = new FieldSet();
		replaceValueFieldSet.setHeadingText("Replace Value");
		replaceValueFieldSet.setCollapsible(false);

		VerticalLayoutContainer replaceValueFieldSetLayout = new VerticalLayoutContainer();
		replaceValueFieldSet.add(replaceValueFieldSetLayout);

		replaceValue = new TextField();
		replaceValue.setToolTip("Replace Value");
		replaceValue.setValue("");
		replaceValueFieldSetLayout.add(new FieldLabel(replaceValue,
				"Replace Value"), new VerticalLayoutData(1, -1));
		
		
		//
		btnApply = new TextButton("Apply");
		btnApply.setIcon(ExpressionResources.INSTANCE.columnReplaceByExpression());
		btnApply.setIconAlign(IconAlign.RIGHT);
		btnApply.setTitle("Apply replace by expression");
		btnApply.addSelectHandler(new SelectHandler() {

			public void onSelect(SelectEvent event) {
				Log.debug("Pressed Apply");
				applyReplaceColumnByExpression();

			}
		});

		btnClose = new TextButton("Close");
		btnClose.setIcon(ExpressionResources.INSTANCE.close());
		btnClose.setIconAlign(IconAlign.RIGHT);
		btnClose.setTitle("Close");
		btnClose.addSelectHandler(new SelectHandler() {

			public void onSelect(SelectEvent event) {
				Log.debug("Pressed Close");
				close();
			}
		});
		flowButton.add(btnApply, new BoxLayoutData(new Margins(2, 4, 2, 4)));
		flowButton.add(btnClose, new BoxLayoutData(new Margins(2, 4, 2, 4)));
		
		//Add to basic layout
		basicLayout.add(properties, new VerticalLayoutData(-1, -1, new Margins(
				1)));
		basicLayout.add(conditionsFieldSet, new VerticalLayoutData(-1, -1,
				new Margins(1)));
		basicLayout.add(replaceValueFieldSet, new VerticalLayoutData(-1, -1, new Margins(
				1)));
		
		basicLayout.add(flowButton, new VerticalLayoutData(-1, 36, new Margins(
				5, 2, 5, 2)));
		add(basicLayout);

	}

	protected void applyReplaceColumnByExpression() {
		C_Expression exp = conditionWidget.getExpression();
		String value = replaceValue.getCurrentValue();
		parent.applyReplaceColumnByExpression(exp,value);

	}

	protected void close() {
		parent.close();
	}
}