Source Code : Change the Label layer (Smart GWT)

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Change the Label layer (Smart GWT)

 
/*
 * SmartGWT (GWT for SmartClient)
 * Copyright 2008 and beyond, Isomorphic Software, Inc.
 *
 * SmartGWT is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License version 3
 * as published by the Free Software Foundation.  SmartGWT is also
 * available under typical commercial license terms - see
 * http://smartclient.com/license
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 */

package com.smartgwt.sample.showcase.client;


import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.ui.RootPanel;
import com.smartgwt.client.types.Alignment;
import com.smartgwt.client.types.DragAppearance;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.Label;
import com.smartgwt.client.widgets.events.ClickEvent;
import com.smartgwt.client.widgets.events.ClickHandler;
import com.smartgwt.client.widgets.layout.VStack;

public class Showcase implements EntryPoint{

    public void onModuleLoad() {
       RootPanel.get().add(getViewPanel());
    }
    public Canvas getViewPanel() {
      Canvas canvas = new Canvas();

      Label bottomLabel = new Label("Bottom");
      bottomLabel.setAlign(Alignment.CENTER);
      bottomLabel.setShowEdges(true);
      bottomLabel.setBackgroundColor("lightblue");
      canvas.addChild(bottomLabel);

      final Label middleLabel = new Label("Middle");
      middleLabel.setAlign(Alignment.CENTER);
      middleLabel.setShowEdges(true);
      middleLabel.setBackgroundColor("lightgreen");
      middleLabel.setLeft(60);
      middleLabel.setTop(60);
      canvas.addChild(middleLabel);

      Label topLabel = new Label("Top");
      topLabel.setAlign(Alignment.CENTER);
      topLabel.setShowEdges(true);
      topLabel.setBackgroundColor("pink");
      topLabel.setLeft(120);
      topLabel.setTop(120);
      canvas.addChild(topLabel);

      final Label dragWidget = new Label("Drag Me");
      dragWidget.setAlign(Alignment.CENTER);
      dragWidget.setShowEdges(true);
      dragWidget.setBackgroundColor("lightyellow");
      dragWidget.setLeft(120);
      dragWidget.setTop(0);
      dragWidget.setCanDragReposition(true);
      dragWidget.setDragAppearance(DragAppearance.TARGET);
      canvas.addChild(dragWidget);

      VStack vStack = new VStack();
      vStack.setLeft(250);
      vStack.setMembersMargin(10);

      IButton frontButton = new IButton("Front");
      frontButton.addClickHandler(new ClickHandler() {
          public void onClick(ClickEvent event) {
              dragWidget.bringToFront();
          }
      });
      vStack.addMember(frontButton);

      IButton backButton = new IButton("Back");
      backButton.addClickHandler(new ClickHandler() {
          public void onClick(ClickEvent event) {
              dragWidget.sendToBack();
          }
      });
      vStack.addMember(backButton);

      IButton aboveMiddleButton = new IButton("Above Middle");
      aboveMiddleButton.addClickHandler(new ClickHandler() {
          public void onClick(ClickEvent event) {
              dragWidget.moveAbove(middleLabel);
          }
      });
      vStack.addMember(aboveMiddleButton);

      IButton belowMiddleButton = new IButton("Below Middle");
      belowMiddleButton.addClickHandler(new ClickHandler() {
          public void onClick(ClickEvent event) {
              dragWidget.moveBelow(middleLabel);
          }
      });
      vStack.addMember(belowMiddleButton);

      canvas.addChild(vStack);
      return canvas;

  }
}

   
  

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