com.sciencegadgets.client.challenge.DiagramPanel.java Source code

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Here is the source code for com.sciencegadgets.client.challenge.DiagramPanel.java

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/*******************************************************************************
 *     This file is part of ScienceGadgets, a collection of educational tools
 *     Copyright (C) 2012-2015 by John Gralyan
 *
 *     ScienceGadgets is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU Affero General Public License as
 *     published by the Free Software Foundation, either version 3 of
 *     the License, or (at your option) any later version.
 *
 *     ScienceGadgets 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 Affero General Public License for more details.
 *
 *     You should have received a copy of the GNU Affero General Public License
 *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *     
 *     Contact us at info@sciencegadgets.org
 *******************************************************************************/
package com.sciencegadgets.client.challenge;

import java.util.HashMap;
import java.util.Map.Entry;

import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.Style;
import com.google.gwt.user.client.ui.AbsolutePanel;
import com.google.gwt.user.client.ui.Label;
import com.sciencegadgets.client.Moderator;
import com.sciencegadgets.client.entities.Problem;
import com.sciencegadgets.client.ui.CSS;
import com.sciencegadgets.client.ui.Resizable;
import com.sciencegadgets.shared.Diagram;
import com.sciencegadgets.shared.Measure;

public class DiagramPanel extends AbsolutePanel implements Resizable {

    HashMap<Measure, Label> measures = new HashMap<Measure, Label>();

    DiagramPanel() {
        setSize("100%", "100%");
        Style style = getElement().getStyle();
        style.setProperty("backgroundSize", "100% 100%");
        //         style.setProperty("backgroundSize", "contain");
        //         style.setProperty("backgroundRepeat", "no-repeat");
        //         style.setProperty("backgroundPosition", "center center");

    }

    public void loadDiagram(Diagram diagram, Problem problem, HashMap<String, String> randomMap) {
        clear();
        measures.clear();

        getElement().getStyle().setBackgroundImage("url('" + diagram.getImageURL() + "')");

        for (Measure m : diagram.getMeasurements()) {
            Label measureLabel = new Label(randomMap.get(m.getNodeID()));
            measureLabel.addStyleName(CSS.DIAGRAM_MEASURE);
            measures.put(m, measureLabel);
        }

        resize();
    }

    @Override
    public void resize() {
        for (Entry<Measure, Label> entry : this.measures.entrySet()) {
            Measure m = entry.getKey();
            int x = (int) (m.getRatioX() * getOffsetWidth());
            int y = (int) (m.getRatioY() * getOffsetHeight());
            add(entry.getValue(), x, y);
        }
    }

    @Override
    protected void onLoad() {
        super.onLoad();
        Scheduler.get().scheduleDeferred(new ScheduledCommand() {
            @Override
            public void execute() {
                resize();
            }
        });
        Moderator.resizables.add(this);
    }

    @Override
    protected void onDetach() {
        super.onDetach();
        Moderator.resizables.remove(this);
    }
}