gwt.material.design.components.client.ui.MaterialImage.java Source code

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Here is the source code for gwt.material.design.components.client.ui.MaterialImage.java

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/*
 * #%L
 * Gwt Material Design Components
 * %%
 * Copyright (C) 2017 - 2017 Gwt Material Design Components
 * %%
 * 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.
 * #L%
 */
package gwt.material.design.components.client.ui;

import com.google.gwt.dom.client.ImageElement;
import com.google.gwt.event.dom.client.ErrorEvent;
import com.google.gwt.event.dom.client.ErrorHandler;
import com.google.gwt.event.dom.client.HasErrorHandlers;
import com.google.gwt.event.dom.client.HasLoadHandlers;
import com.google.gwt.event.dom.client.LoadEvent;
import com.google.gwt.event.dom.client.LoadHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.resources.client.ImageResource;
import com.google.gwt.user.client.ui.HasCaption;

import gwt.material.design.components.client.base.interfaces.FromString;
import gwt.material.design.components.client.base.interfaces.HasImage;
import gwt.material.design.components.client.base.mixin.ImageMixin;
import gwt.material.design.components.client.base.mixin.base.AttributeMixin;
import gwt.material.design.components.client.constants.CssAttribute;
import gwt.material.design.components.client.ui.html.Img;

/**
 * 
 * @author Richeli Vargas
 *
 */
public class MaterialImage extends Img implements HasCaption, HasImage, HasLoadHandlers, HasErrorHandlers {

    protected final ImageMixin<MaterialImage> imageMixin = new ImageMixin<>(this);
    protected final AttributeMixin<MaterialImage, String> captionMixin = new AttributeMixin<MaterialImage, String>(
            this, CssAttribute.DATA_CAPTION, FromString.TO_STRING);

    /**
     * Creates an empty image.
     */
    public MaterialImage() {
        super();
    }

    /**
     * Creates a simple image.
     */
    public MaterialImage(String url) {
        this();
        setUrl(url);
    }

    /**
     * Creates an image from an ImageResource.
     */
    public MaterialImage(ImageResource resource) {
        this();
        setResource(resource);
    }

    @Override
    public String getCaption() {
        return captionMixin.getValue();
    }

    @Override
    public void setCaption(String caption) {
        captionMixin.setValue(caption);
    }

    @Override
    public void setUrl(String url) {
        imageMixin.setUrl(url);
    }

    @Override
    public String getUrl() {
        return imageMixin.getUrl();
    }

    @Override
    public void setResource(ImageResource resource) {
        imageMixin.setResource(resource);
    }

    @Override
    public ImageResource getResource() {
        return imageMixin.getResource();
    }

    public int getWidth() {
        return ((ImageElement) getElement().cast()).getWidth();
    }

    public int getHeight() {
        return ((ImageElement) getElement().cast()).getHeight();
    }

    @Override
    public HandlerRegistration addLoadHandler(final LoadHandler handler) {
        return addDomHandler(handler, LoadEvent.getType());
    }

    @Override
    public HandlerRegistration addErrorHandler(final ErrorHandler handler) {
        return addDomHandler(handler, ErrorEvent.getType());
    }
}