ProgressBar Sample (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.Timer;
import com.google.gwt.user.client.ui.RootPanel;
import com.smartgwt.client.widgets.Canvas;
import com.smartgwt.client.widgets.IButton;
import com.smartgwt.client.widgets.Label;
import com.smartgwt.client.widgets.Progressbar;
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());
}
private int hBar1Value;
private int hBar2Value;
public Canvas getViewPanel() {
VLayout horizontalBars = new VLayout(4);
horizontalBars.setWidth(175);
final Label hBar1Label = new Label("Current File Progress");
hBar1Label.setHeight(16);
horizontalBars.addMember(hBar1Label);
final Progressbar hBar1 = new Progressbar();
hBar1.setVertical(false);
hBar1.setHeight(14);
hBar1.setLength(175);
horizontalBars.addMember(hBar1);
final Label hBar2Label = new Label("Total Progress");
hBar2Label.setHeight(16);
horizontalBars.addMember(hBar2Label);
final Progressbar hBar2 = new Progressbar();
hBar2.setVertical(false);
hBar2.setHeight(14);
hBar2.setLength(175);
horizontalBars.addMember(hBar2);
final IButton buttonStart = new IButton("Start Demo");
buttonStart.setAutoFit(true);
buttonStart.addClickHandler(new ClickHandler(){
public void onClick(ClickEvent event) {
buttonStart.setDisabled(true);
hBar1Value = 0;
hBar2Value = 0;
hBar1.setPercentDone(hBar1Value);
hBar1Label.setContents("Current File Progress");
hBar2.setPercentDone(hBar2Value);
hBar2Label.setContents("Total Progress");
new Timer() {
public void run() {
hBar1Value += 1 + (int) (10 * Math.random());
if (hBar1Value > 100) {
hBar1Value = 0;
hBar2Value += 1 + (int) (5 * Math.random());
if (hBar2Value >= 100)
hBar1Value = hBar2Value = 100;
hBar2.setPercentDone(hBar2Value);
hBar2Label.setContents("Total Progress: "+hBar2Value+"%");
}
hBar1.setPercentDone(hBar1Value);
hBar1Label.setContents("Current File Progress: "+hBar1Value+"%");
if(hBar2Value!=100)
schedule(5 + (int) (50 * Math.random()));
else
buttonStart.setDisabled(false);
}
}.schedule(50);
}
});
HLayout buttonCanvas = new HLayout();
buttonCanvas.setMargin(10);
buttonCanvas.addMember(buttonStart);
horizontalBars.addMember(buttonCanvas);
Canvas canvas = new Canvas();
canvas.addChild(horizontalBars);
return canvas;
}
}
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