es.eucm.gleaner.viewer.TraceViewer.java Source code

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Here is the source code for es.eucm.gleaner.viewer.TraceViewer.java

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/**
 * Copyright (C) 2015 eUCM Research Group (e-adventure-dev@e-ucm.es)
 *
 * 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 es.eucm.gleaner.viewer;

import com.badlogic.gdx.scenes.scene2d.Actor;
import com.badlogic.gdx.scenes.scene2d.InputEvent;
import com.badlogic.gdx.scenes.scene2d.ui.Button;
import com.badlogic.gdx.scenes.scene2d.ui.Button.ButtonStyle;
import com.badlogic.gdx.scenes.scene2d.ui.Container;
import com.badlogic.gdx.scenes.scene2d.ui.Label;
import com.badlogic.gdx.scenes.scene2d.ui.Label.LabelStyle;
import com.badlogic.gdx.scenes.scene2d.ui.ScrollPane;
import com.badlogic.gdx.scenes.scene2d.ui.ScrollPane.ScrollPaneStyle;
import com.badlogic.gdx.scenes.scene2d.ui.Skin;
import com.badlogic.gdx.scenes.scene2d.ui.Stack;
import com.badlogic.gdx.scenes.scene2d.ui.Table;
import com.badlogic.gdx.scenes.scene2d.ui.VerticalGroup;
import com.badlogic.gdx.scenes.scene2d.utils.ClickListener;
import com.badlogic.gdx.utils.GdxRuntimeException;
import com.badlogic.gdx.utils.Json;
import com.badlogic.gdx.utils.JsonValue;
import com.badlogic.gdx.utils.JsonWriter.OutputType;
import es.eucm.gleaner.tracker.AbstractTracker;
import es.eucm.gleaner.tracker.AbstractTracker.TraceListener;

public class TraceViewer extends Table implements TraceListener {

    private Skin skin;

    private LabelStyle traceStyle;

    private VerticalGroup feed;

    private VerticalGroup detailed;

    private ScrollPane detailedScroll;

    private int count = 0;

    private AbstractTracker tracker;

    public TraceViewer(Skin skin, AbstractTracker tracker) {
        this.skin = skin;
        this.tracker = tracker;

        ButtonStyle style = skin.get("trace", ButtonStyle.class);
        if (style == null) {
            throw new GdxRuntimeException("TraceViewer needs a ButtonStyle named 'trace'");
        }

        Stack stack = new Stack();

        ScrollPaneStyle scrollPaneStyle = new ScrollPaneStyle();
        scrollPaneStyle.background = skin.getDrawable("blank");
        detailedScroll = new ScrollPane(detailed = new VerticalGroup(), scrollPaneStyle);
        detailed.fill();
        detailed.left();

        detailedScroll.setScrollingDisabled(true, false);

        stack.addActor(detailedScroll);
        detailedScroll.setVisible(false);

        Button showDetail = new Button(style);
        showDetail.addListener(new ClickListener() {

            boolean visible = false;

            @Override
            public void clicked(InputEvent event, float x, float y) {
                visible = !visible;
                detailedScroll.setVisible(visible);
                feed.setVisible(!visible);
            }
        });
        Container<Actor> showDetailContainer = new Container<Actor>(showDetail);
        showDetailContainer.right().top();
        stack.addActor(showDetailContainer);

        stack.addActor(feed = new VerticalGroup());
        feed.right();
        feed.addActor(new Container<Actor>().minHeight(80));

        add(stack).expand().right().top();
        row();

        traceStyle = skin.get("trace", LabelStyle.class);
        if (traceStyle == null) {
            throw new GdxRuntimeException("TraceViewer needs a LabelStyle named 'trace'");
        }

        tracker.addTraceListener(this);
    }

    @Override
    public void trace(String trace) {
        if (!tracker.isReady()) {
            return;
        }

        Table xAPI = new Table();
        xAPI.add(new Label("[#000000]" + ++count + "[]", traceStyle));
        xAPI.row();
        xAPI.add();

        LabelStyle style = skin.get("xapi", LabelStyle.class);
        if (style == null) {
            style = traceStyle;
        }

        JsonValue statement = new Json().fromJson(null, trace);
        System.out.println(statement.prettyPrint(OutputType.json, 0));
        xAPI.add(new Label(statement.prettyPrint(OutputType.json, 0), style)).expandX().fillX();

        detailed.addActor(xAPI);

    }
}