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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