Class Bitmap

shared/java/Bitmap.java:9–1114

import io.github.humbleui.types.*;

public class Bitmap extends Managed implements IHasImageInfo {
    static { Library.staticLoad(); }

    @ApiStatus.Internal
    public ImageInfo _imageInfo = null;
    
    @ApiStatus.Internal
    public Bitmap(long ptr) {
        super(ptr, _FinalizerHolder.PTR);
    }

    /**
     * Creates an empty Bitmap without pixels, with {@link ColorType#UNKNOWN},
     * {@link ColorAlphaType#UNKNOWN}, and with a width and height of zero. 
     * PixelRef origin is set to (0, 0). Bitmap is not volatile.
     *
     * Use {@link #setImageInfo(ImageInfo, long)} to associate ColorType, ColorAlphaType, width, and height after Bitmap has been created.
     * 
     * @see <a href="https://fiddle.skia.org/c/@Bitmap_empty_constructor">https://fiddle.skia.org/c/@Bitmap_empty_constructor</a>
     */
    public Bitmap() {
        this(_nMake());
        Stats.onNativeCall();
    }

    /**
     * Copies settings from src to returned Bitmap. Shares pixels if src has pixels
     * allocated, so both bitmaps reference the same pixels.
     *
     * @return  copy of src
     *
     * @see <a href="https://fiddle.skia.org/c/@Bitmap_copy_const_SkBitmap">https://fiddle.skia.org/c/@Bitmap_copy_const_SkBitmap</a>
     */
    @NotNull @Contract("-> new")
    public Bitmap makeClone() {
        try {
            Stats.onNativeCall();
            return new Bitmap(_nMakeClone(_ptr));
        } finally {
            ReferenceUtil.reachabilityFence(this);
        }
    }

    @NotNull @Contract("-> new")
    public static Bitmap makeFromImage(@NotNull Image image) {
        assert image != null : "Can’t makeFromImage with image == null";
        Bitmap bitmap = new Bitmap();
        bitmap.allocPixels(image.getImageInfo());
        if (image.readPixels(bitmap))
            return bitmap;
        else {
            bitmap.close();
            throw new RuntimeException("Failed to readPixels from " + image);
        }
    }

    /**
     * Swaps the fields of the two bitmaps.