androidassetsgenerator.AssetGenerator.java Source code

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Here is the source code for androidassetsgenerator.AssetGenerator.java

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/*
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package androidassetsgenerator;

import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import javax.imageio.ImageIO;

import org.apache.commons.io.FilenameUtils;
import net.coobird.thumbnailator.*;
import net.coobird.thumbnailator.name.Rename;

/**
 *
 * @author afifhendrawan
 */
public class AssetGenerator {

    private BufferedImage asset = null;

    public void scaleThumbnailator(File input, String fileName, int baseIndex, String outputDir)
            throws IOException {
        asset = ImageIO.read(input);

        String file = FilenameUtils.removeExtension(fileName);
        String fileExtension = FilenameUtils.getExtension(fileName);

        System.out.println(baseIndex);

        BufferedImage outputLdpi, outputMdpi, outputHdpi, outputXhdpi, outputXxhdpi, outputXxxhdpi;

        switch (baseIndex) {
        // Write from ldpi to ldpi -> kind of useless
        case 0:
            writeOutput(asset, path(fileName, outputDir, Constants.DRAWABLE_LDPI));
            break;
        // Write from mdpi to ldpi
        case 1:
            writeOutput(scale34(asset), path(fileName, outputDir, Constants.DRAWABLE_LDPI));
            break;
        // Write from hdpi to mdpi, ldpi
        case 2:
            outputMdpi = scale23(asset);
            // Write to mdpi
            writeOutput(outputMdpi, path(fileName, outputDir, Constants.DRAWABLE_MDPI));
            // Write to ldpi
            writeOutput(scale34(outputMdpi), path(fileName, outputDir, Constants.DRAWABLE_LDPI));
            break;
        // Write from xhdpi to hdpi, mdpi, ldpi
        case 3:
            outputHdpi = scale34(asset);
            outputMdpi = scale23(outputHdpi);
            // Write to hdpi
            writeOutput(outputHdpi, path(fileName, outputDir, Constants.DRAWABLE_HDPI));
            // Write to mdpi
            writeOutput(outputMdpi, path(fileName, outputDir, Constants.DRAWABLE_MDPI));
            // Write to ldpi
            writeOutput(scale34(outputMdpi), path(fileName, outputDir, Constants.DRAWABLE_LDPI));
            break;
        // Write from xxhdpi to xhdpi, hdpi, mdpi, ldpi
        case 4:
            outputXhdpi = scale23(asset);
            outputHdpi = scale34(outputXhdpi);
            outputMdpi = scale23(outputHdpi);
            // Write to xhdpi
            writeOutput(outputXhdpi, path(fileName, outputDir, Constants.DRAWABLE_XHDPI));
            // Write to hdpi
            writeOutput(outputHdpi, path(fileName, outputDir, Constants.DRAWABLE_HDPI));
            // Write to mdpi
            writeOutput(outputMdpi, path(fileName, outputDir, Constants.DRAWABLE_MDPI));
            // Write to ldpi
            writeOutput(scale34(outputMdpi), path(fileName, outputDir, Constants.DRAWABLE_LDPI));
            break;
        // Write from xxxhdpi to xxhdpi, xhdpi, hdpi, mdpi, ldpi
        case 5:
            outputXxhdpi = scale34(asset);
            outputXhdpi = scale23(outputXxhdpi);
            outputHdpi = scale34(outputXhdpi);
            outputMdpi = scale23(outputHdpi);
            // Write to xxhdpi
            writeOutput(outputXxhdpi, path(fileName, outputDir, Constants.DRAWABLE_XXHDPI));
            // Write to xhdpi
            writeOutput(outputXhdpi, path(fileName, outputDir, Constants.DRAWABLE_XHDPI));
            // Write to hdpi
            writeOutput(outputHdpi, path(fileName, outputDir, Constants.DRAWABLE_HDPI));
            // Write to mdpi
            writeOutput(outputMdpi, path(fileName, outputDir, Constants.DRAWABLE_MDPI));
            // Write to ldpi
            writeOutput(scale34(outputMdpi), path(fileName, outputDir, Constants.DRAWABLE_LDPI));
            break;
        }

    }

    /** Scale for 3:4 or 0.75 */
    private BufferedImage scale34(BufferedImage input) throws IOException {
        BufferedImage output = Thumbnails.of(input).scale(0.75).asBufferedImage();
        return output;
    }

    /** Scale for 2/3 or 0.6666666667 */
    private BufferedImage scale23(BufferedImage input) throws IOException {
        BufferedImage output = Thumbnails.of(input).scale(0.6666666667).asBufferedImage();
        return output;
    }

    /** Write Output Image */
    private void writeOutput(BufferedImage input, File path) throws IOException {
        Thumbnails.of(input).scale(1).toFile(path);
    }

    private File path(String fileName, String outputDir, String outputSize) {
        String name = FilenameUtils.removeExtension(fileName);
        String extension = FilenameUtils.getExtension(fileName);
        Path path = Paths.get(
                outputDir + Constants.SLASH + Constants.PREFIX + name.toUpperCase() + Constants.SLASH + outputSize);

        if (!Files.exists(path)) {
            try {
                Files.createDirectories(path);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        File file = new File(path.toString() + Constants.SLASH + Constants.PREFIX + name.toUpperCase()
                + Constants.DOT + extension);

        return file;
    }

}