Class Canvas

shared/java/Canvas.java:7–1269

import org.jetbrains.skija.impl.*;

public class Canvas extends Managed {
    static { Library.staticLoad(); }

    @ApiStatus.Internal
    public final Object _owner;
    
    @ApiStatus.Internal
    public Canvas(long ptr, boolean managed, Object owner) {
        super(ptr, _FinalizerHolder.PTR, managed);
        this._owner = owner;
    }

    /**
     * <p>Constructs a canvas that draws into bitmap.
     * Sets default pixel geometry in constructed Surface.</p>
     *
     * <p>Bitmap is copied so that subsequently editing bitmap will not affect
     * constructed Canvas.</p>
     *
     * <p>May be deprecated in the future.</p>
     *
     * @param bitmap  width, height, ColorType, ColorAlphaType, and pixel
     *                storage of raster surface
     *
     * @see <a href="https://fiddle.skia.org/c/@Canvas_copy_const_SkBitmap">https://fiddle.skia.org/c/@Canvas_copy_const_SkBitmap</a>
     */
    public Canvas(@NotNull Bitmap bitmap) {
        this(bitmap, new SurfaceProps());
    }

    /**
     * <p>Constructs a canvas that draws into bitmap.
     * Use props to match the device characteristics, like LCD striping.</p>
     *
     * <p>Bitmap is copied so that subsequently editing bitmap will not affect
     * constructed Canvas.</p>
     *
     * @param bitmap  width, height, ColorType, ColorAlphaType, and pixel
     *                storage of raster surface
     * @param surfaceProps   order and orientation of RGB striping; and whether to use
     *                       device independent fonts
     *
     * @see <a href="https://fiddle.skia.org/c/@Canvas_const_SkBitmap_const_SkSurfaceProps">https://fiddle.skia.org/c/@Canvas_const_SkBitmap_const_SkSurfaceProps</a>
     */
    public Canvas(@NotNull Bitmap bitmap, @NotNull SurfaceProps surfaceProps) {
        this(_nMakeFromBitmap(bitmap._ptr, surfaceProps._getFlags(), surfaceProps._pixelGeometry.ordinal()), true, bitmap);
        Stats.onNativeCall();
        Reference.reachabilityFence(bitmap);
    }

    @NotNull @Contract("_, _, _ -> this")
    public Canvas drawPoint(float x, float y, @NotNull Paint paint) {
        assert paint != null : "Can’t drawPoint with paint == null";
        Stats.onNativeCall();
        _nDrawPoint(_ptr, x, y, Native.getPtr(paint));
        Reference.reachabilityFence(paint);
        return this;
    }