com.qut.gwtuilib.client.display.MessagePanel.java Source code

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Here is the source code for com.qut.gwtuilib.client.display.MessagePanel.java

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/* Copyright 2008, Queensland University of Technology
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not 
 * use this file except in compliance with the License. You may obtain a copy of 
 * the License at 
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0 
 * 
 * Unless required by applicable law or agreed to in writing, software 
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
 * License for the specific language governing permissions and limitations under 
 * the License.
 */
package com.qut.gwtuilib.client.display;

import org.adamtacy.client.ui.EffectPanel;
import org.adamtacy.client.ui.effects.Effect;
import org.adamtacy.client.ui.effects.EffectHandlerAdapter;
import org.adamtacy.client.ui.effects.impl.Fade;

import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.qut.gwtuilib.client.CSSConstants;

public class MessagePanel extends HorizontalPanel {
    protected EffectPanel effectPanel;
    protected HorizontalPanel container;
    protected Label message;
    protected boolean effectsInverted;

    private Timer t;

    private int appearTime = 10000;

    public MessagePanel() {
        this.setupEffects();
        this.createMessage();
        this.attachPanels();

        this.effectPanel.beginEffects();
        this.effectsInverted = true;
    }

    public MessagePanel(int appearTime) {
        this.appearTime = appearTime;

        this.setupEffects();
        this.createMessage();
        this.attachPanels();

        this.effectPanel.beginEffects();
        this.effectsInverted = true;
    }

    private void createMessage() {
        this.container = new HorizontalPanel();
        this.container.addStyleName(CSSConstants.message);

        this.message = new Label();
        this.container.add(this.message);
    }

    private void attachPanels() {
        this.effectPanel.add(this.container);
        this.add(this.effectPanel);
    }

    private void setupEffects() {
        this.effectPanel = new EffectPanel();

        Fade fade = new Fade();

        fade.addEffectHandler(new EffectHandlerAdapter() {
            public void preEvent(Effect theEffect) {
                super.preEvent(theEffect);
            }

            public void postEvent(Effect theEffect) {
                super.postEvent(theEffect);
            }
        });

        this.effectPanel.addEffect(fade);
    }

    public void errorMsg(String message) {
        this.message.setText(message);
        this.container.addStyleName(CSSConstants.messageError);
        this.container.removeStyleName(CSSConstants.messageInformation);
        this.container.removeStyleName(CSSConstants.messageOk);

        doDisplay();
    }

    public void informationMsg(String message) {
        this.message.setText(message);
        this.container.addStyleName(CSSConstants.messageInformation);
        this.container.removeStyleName(CSSConstants.messageError);
        this.container.removeStyleName(CSSConstants.messageOk);

        doDisplay();
    }

    public void okMsg(String message) {
        this.message.setText(message);
        this.container.addStyleName(CSSConstants.messageOk);
        this.container.removeStyleName(CSSConstants.messageError);
        this.container.removeStyleName(CSSConstants.messageInformation);

        doDisplay();
    }

    private void doDisplay() {

        if (this.effectsInverted) {
            this.effectPanel.invertEffects();
            this.effectPanel.beginEffects();
            this.effectsInverted = false;
        }

        t = new Timer() {
            public void run() {
                if (!MessagePanel.this.effectsInverted) {
                    MessagePanel.this.effectPanel.invertEffects();
                    MessagePanel.this.effectPanel.beginEffects();
                    MessagePanel.this.effectsInverted = true;
                }
            }
        };

        t.schedule(this.appearTime);
    }

}