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jnuit core
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/*
 The MIT License (MIT)

 Copyright (c) 2013 devnewton 

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights
 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 copies of the Software, and to permit persons to whom the Software is
 furnished to do so, subject to the following conditions:

 The above copyright notice and this permission notice shall be included in
 all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 */
package im.bci.jnuit.widgets;

import im.bci.jnuit.NuitToolkit;
import im.bci.jnuit.animation.IPlay;
import java.util.ArrayList;
import im.bci.jnuit.background.TexturedBackground;
import im.bci.jnuit.background.Background;
import im.bci.jnuit.background.NullBackground;

/**
 * Widget to presents cinematics with subtitles
 * @author devnewton
 */
public class Dialogue extends Container {

    private final ArrayList sentences = new ArrayList<>();
    private int currentSentenceIndex;
    private IPlay currentPlay;
    private boolean finished;
    protected Label textLabel;
    protected Label view;
    protected Button nextButton;
    protected NuitToolkit toolkit;
    protected Button previousButton;

    private Sentence getCurrentSentence() {
        if (!sentences.isEmpty()) {
            return sentences.get(currentSentenceIndex);
        } else {
            return null;
        }
    }

    private Iterable splitSentence(String sentence) {
        ArrayList result = new ArrayList<>();
        String currentSubsentence = "";
        String[] words = sentence.split(" ");
        for (int i =0;i textLabel.getWidth()) {
                result.add(currentSubsentence);
                currentSubsentence = i != words.length-1 ? "" : words[i];
            } else {
                currentSubsentence = newSubsentence;
            }
        }
        if(!currentSubsentence.isEmpty()) {
            result.add(currentSubsentence);
        }
        if(result.isEmpty()) {
            result.add("");
        }
        return result;
    }

    private static class Sentence {

        IPlay play;
        String text;
        float x;
        float y;
        float w;
        float h;

        private Sentence(IPlay play, float x, float y, float w, float h, String text) {
            this.play = play;
            this.text = text;
            this.x = x;
            this.y = y;
            this.w = w;
            this.h = h;
        }
    }

    public Dialogue(NuitToolkit toolkit) {
        this.toolkit = toolkit;

        final int BUTTON_SIZE = 64;

        nextButton = new Button(toolkit, ">") {

            @Override
            public void onOK() {
                onNext();
            }

        };
        nextButton.setX(toolkit.getVirtualResolutionWidth() - BUTTON_SIZE);
        nextButton.setY(toolkit.getVirtualResolutionHeight() - BUTTON_SIZE);
        nextButton.setWidth(BUTTON_SIZE);
        nextButton.setHeight(BUTTON_SIZE);

        previousButton = new Button(toolkit, "<") {
            @Override
            public void onOK() {
                onPrevious();
            }

            @Override
            public boolean isFocusable() {
                return currentSentenceIndex > 0 && super.isFocusable();
            }

            @Override
            public Background getBackground() {
                if (currentSentenceIndex > 0) {
                    return super.getBackground();
                } else {
                    return NullBackground.INSTANCE;
                }
            }
        };
        previousButton.setX(0);
        previousButton.setY(toolkit.getVirtualResolutionHeight() - BUTTON_SIZE);
        previousButton.setWidth(BUTTON_SIZE);
        previousButton.setHeight(BUTTON_SIZE);

        this.textLabel = new Label(toolkit, "");
        textLabel.setX(BUTTON_SIZE);
        textLabel.setY(toolkit.getVirtualResolutionHeight() - BUTTON_SIZE);
        textLabel.setWidth(toolkit.getVirtualResolutionWidth()- BUTTON_SIZE * 2);
        textLabel.setHeight(BUTTON_SIZE);

        view = new Label(toolkit, "");
        view.setWidth(toolkit.getVirtualResolutionWidth());
        view.setHeight(toolkit.getVirtualResolutionHeight());

        add(view);
        add(textLabel);
        add(nextButton);
        add(previousButton);
        setFocusedChild(nextButton);
    }

    public void addTirade(IPlay play, float x, float y, float w, float h, String... sentences) {
        for (String sentence : sentences) {
            sentence = toolkit.getMessage(sentence);
            for (String splittedSentence : splitSentence(sentence)) {
                this.sentences.add(new Sentence(play, x, y, w, h, splittedSentence));
            }
        }
        onChangeSentence();
    }

    public void addTirade(IPlay play, String... sentences) {
        addTirade(play, 0, 0, view.getWidth(), view.getHeight(), sentences);
    }

    protected void onNext() {
        if (currentSentenceIndex < (sentences.size() - 1)) {
            ++currentSentenceIndex;
        } else {
            onFinished();
        }
        onChangeSentence();
    }

    protected void onChangeSentence() {
        Sentence currentSentence = getCurrentSentence();
        if (null != currentSentence) {
            textLabel.setText(currentSentence.text);
            if (currentPlay != currentSentence.play) {
                currentPlay = currentSentence.play;
                currentSentence.play.restart();
                view.setX(currentSentence.x);
                view.setY(currentSentence.y);
                view.setWidth(currentSentence.w);
                view.setHeight(currentSentence.h);
                view.setBackground(new TexturedBackground(currentSentence.play));
            }
        }
        if (currentSentenceIndex == 0) {
            setFocusedChild(nextButton);
        }
    }

    protected void onPrevious() {
        if (currentSentenceIndex > 0) {
            --currentSentenceIndex;
        }
        onChangeSentence();
    }

    public boolean isFinished() {
        return finished;
    }

    protected void onFinished() {
        this.finished = true;
        this.close();
    }
}