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package cdc.perfs.ui.fx;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;

import cdc.perfs.MeasureLevel;
import cdc.ui.fx.FxUtil;
import javafx.scene.control.ContentDisplay;
import javafx.scene.control.cell.ComboBoxTableCell;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;

public class MeasureLevelTableCell extends ComboBoxTableCell {
    private static final Logger LOGGER = LogManager.getLogger(MeasureLevelTableCell.class);
    private static Image[] images = null;

    private final ImageView[] imageViews = new ImageView[MeasureLevel.values().length];

    public MeasureLevelTableCell() {
        super(MeasureLevel.values());
        init();
    }

    private synchronized void init() {
        if (images == null) {
            final Image[] tmp = new Image[MeasureLevel.values().length];
            for (final MeasureLevel level : MeasureLevel.values()) {
                tmp[level.ordinal()] = FxUtil.load("cdc/perfs/images/cdc-perfs-level-" + level.name().toLowerCase() + ".png");
            }
            images = tmp;
        }
        for (final MeasureLevel level : MeasureLevel.values()) {
            imageViews[level.ordinal()] = new ImageView(images[level.ordinal()]);
        }
    }

    @Override
    public void cancelEdit() {
        LOGGER.debug("cancelEdit()");
        super.cancelEdit();
        if (getItem() == null) {
            setText(null);
            setGraphic(null);
        } else {
            setGraphic(imageViews[getItem().ordinal()]);
        }
    }

    @Override
    public void updateItem(MeasureLevel item,
                           boolean empty) {
        LOGGER.debug("updateItem(" + item + ", " + empty + ")");
        super.updateItem(item, empty);
        setContentDisplay(ContentDisplay.LEFT);
        if (item == null || empty) {
            setText(null);
            setGraphic(null);
        } else {
            setGraphic(imageViews[item.ordinal()]);
        }
    }
}