com.gwtmodel.table.view.ewidget.gwt.ImageButton.java Source code

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Here is the source code for com.gwtmodel.table.view.ewidget.gwt.ImageButton.java

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/*
 * Copyright 2017 stanislawbartkowski@gmail.com  
 * 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.gwtmodel.table.view.ewidget.gwt;

import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.safehtml.shared.SafeHtml;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.gwtmodel.table.GWidget;
import com.gwtmodel.table.IConsts;
import com.gwtmodel.table.IVField;
import com.gwtmodel.table.Utils;
import com.gwtmodel.table.editw.IFormFieldProperties;
import com.gwtmodel.table.editw.IGetListOfIcons;

class ImageButton extends AbstractField {

    private final HorizontalPanel hPanel = new HorizontalPanel();
    private final IGetListOfIcons iList;
    private String value;

    private class Clicked implements ClickHandler {

        private final int no;

        Clicked(int no) {
            this.no = no;
        }

        @Override
        public void onClick(ClickEvent event) {
            iList.signalClick(new GWidget(hPanel), v, no);
        }

    }

    ImageButton(IVField v, IFormFieldProperties pr, int noImages, IGetListOfIcons iList) {
        super(v, pr, false);
        this.iList = iList;
        initWidget(hPanel);
        for (int i = 0; i < noImages; i++) {
            HTML l = new HTML();
            hPanel.add(l);
            l.addClickHandler(new Clicked(i));
        }
    }

    @Override
    public void setReadOnly(boolean readOnly) {
    }

    @Override
    public void setFocus(boolean focus) {
    }

    @Override
    public Object getValObj() {
        return value;
    }

    @Override
    public void setValObj(Object o) {
        value = (String) o;
        String[] ima = iList.getList(v);
        for (int i = 0; i < ima.length; i++) {
            HTML h = (HTML) hPanel.getWidget(i);
            if (IConsts.EMPTYIM.equals(ima[i]))
                h.setHTML("");
            else {
                String s = Utils.getImageHTML(ima[i]);
                SafeHtml html = SafeHtmlUtils.fromTrustedString(s);
                h.setHTML(html);
            }
        }
    }

}