Source Code : Remove widget from layout mananger (Smart GWT)

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Remove widget from layout mananger (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.types.Overflow;
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.HLayout;
import com.smartgwt.client.widgets.layout.VLayout;

public class Showcase implements EntryPoint {

  public void onModuleLoad() {
    RootPanel.get().add(getViewPanel());
  }

  public Canvas getViewPanel() {
    VLayout layout = new VLayout(15);

    final HLayout mainLayout = new HLayout();
    mainLayout.setWidth(350);
   
    mainLayout.setShowEdges(true);
    mainLayout.setEdgeImage("edges/custom/sharpframe_10.png");
    mainLayout.setDragAppearance(DragAppearance.TARGET);
    mainLayout.setOverflow(Overflow.HIDDEN);
    mainLayout.setCanDragResize(true);
    mainLayout.setResizeFrom("L", "R");
    mainLayout.setLayoutMargin(10);
    mainLayout.setMembersMargin(10);
    mainLayout.setMinWidth(100);
    mainLayout.setMinHeight(50);

    final Label member1 = new Label();
    member1.setContents("Member 1");
    member1.setOverflow(Overflow.HIDDEN);
    member1.setShowEdges(true);
    member1.setCanDragResize(true);
    member1.setResizeFrom("L", "R");
    member1.setAlign(Alignment.CENTER);

    Label member2 = new Label();
    member2.setContents("Member 2");
    member2.setOverflow(Overflow.HIDDEN);
    member2.setShowEdges(true);
    member2.setCanDragResize(true);
    member2.setResizeFrom("L", "R");
    member2.setAlign(Alignment.CENTER);

    mainLayout.addMember(member1);
    mainLayout.addMember(member2);
    mainLayout.setHeight(100);

    HLayout buttonLayout = new HLayout(15);

    final IButton removeMember = new IButton("Remove Member 1");
    removeMember.setWidth(140);
    
    final IButton addMember = new IButton("Add Member 1");
    addMember.setDisabled(true);

    removeMember.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            Canvas[] children = mainLayout.getChildren();
            mainLayout.removeChild(member1);
            removeMember.disable();
            addMember.enable();
        }
    });
    buttonLayout.addMember(removeMember);


    addMember.addClickHandler(new ClickHandler() {
        public void onClick(ClickEvent event) {
            mainLayout.addMember(member1);
            addMember.disable();
            removeMember.enable();
        }
    });
    buttonLayout.addMember(addMember);

    layout.addMember(mainLayout);
    layout.addMember(buttonLayout);

    return layout;
  }

}

   
    
    
  

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