import * as em from "./Enums";
import * as ds from "./Types";
import { ObjectManager } from "./ObjectManager";
import { DrawingContext } from "./DrawingContext";
import { type BilevelBitmap } from "./BilevelBitmap";
import { type GrayscaleBitmap } from "./GrayscaleBitmap";
import { type Bitmap } from "./Bitmap";
/**
 * Represents a drawing context for a {@link Bitmap}.
 **/
export declare class BmpContext extends DrawingContext {
    /**
     * Creates a new {@link Bitmap} with BmpContext and optionally fills the {@link Bitmap} with a background color.
     * @param width The width of drawing surface, in context units (not in pixels, unless scale is 1.0).
     * @param height The height of drawing surface, in context units (not in pixels, unless scale is 1.0).
     * @param scale The optional scale factor for mapping from context units to pixels.
     * The default is 1.0 which means that the width and height are in pixels.
     * @param backColor An optional background color to fill the drawing surface.
     **/
    constructor(width: number, height: number, scale?: number, backColor?: ds.Color | null);
    /**
     * Creates a new {@link Bitmap} with BmpContext and optionally fills the {@link Bitmap} with a background color.
     * @param om An object manager that controls the lifetime of the BmpContext object.
     * @param width The width of drawing surface, in context units (not in pixels, unless scale is 1.0).
     * @param height The height of drawing surface, in context units (not in pixels, unless scale is 1.0).
     * @param scale The optional scale factor for mapping from context units to pixels.
     * The default is 1.0 which means that the width and height are in pixels.
     * @param backColor An optional background color to fill the drawing surface.
     **/
    constructor(om: ObjectManager, width: number, height: number, scale?: number, backColor?: ds.Color | null);
    /**
     * Gets the type of {@link DrawingContext}.
     **/
    get type(): em.ContextType;
    /**
     * Gets the resolution of the {@link DrawingContext}, in dots per Inch.
     **/
    get resolution(): number;
    /**
     * Gets the width of the context, in context graphic units.
     **/
    get width(): number;
    /**
     * Gets the height of the context, in context graphic units.
     **/
    get height(): number;
    /**
     * Gets the {@link Bitmap} object associated with this drawing context.
     **/
    get bitmap(): Bitmap;
    /**
     * Gets or sets the current blend mode for drawing operations.
     **/
    get blendMode(): em.BlendMode;
    /**
     * Gets or sets the current blend mode for drawing operations.
     **/
    set blendMode(blendMode: em.BlendMode);
    /**
     * Gets or sets the sampling mode to use when drawing images with resizing.
     **/
    get interpolationMode(): em.InterpolationMode;
    /**
     * Gets or sets the sampling mode to use when drawing images with resizing.
     **/
    set interpolationMode(interpolationMode: em.InterpolationMode);
    /**
     * Gets or sets a value indicating whether the graphic objects are drawn without anti-aliasing.
     **/
    get aliased(): boolean;
    /**
     * Gets or sets a value indicating whether the graphic objects are drawn without anti-aliasing.
     **/
    set aliased(value: boolean);
    /**
     * Gets or sets a value specifying whether text is always drawn with antialiasing
     * regardless the value of the 'aliased' property.
     **/
    get forceAntialiasingForText(): boolean;
    /**
     * Gets or sets a value specifying whether text is always drawn with antialiasing
     * regardless the value of the 'aliased' property.
     **/
    set forceAntialiasingForText(value: boolean);
    /**
     * Gets or sets a value indicating whether the antialiasing algorithm should produce better quality with lower speed.
     **/
    get slowAntialiasing(): boolean;
    /**
     * Gets or sets a value indicating whether the antialiasing algorithm should produce better quality with lower speed.
     **/
    set slowAntialiasing(value: boolean);
    /**
     * Gets or sets a {@link BilevelBitmap} to monitor changes in the target bitmap.
     * Its pixels are used as boolean flags indicating changes in the corresponding pixels of the target bitmap.
     * When a pixel in the target bitmap is changed, the corresponding pixel in this bitmap is set to 1 (true).
     * The {@link BilevelBitmap} must have the same pixel size as the target bitmap.
     * It is user's responsibility to clear this bitmap (fill it with zeros) before any drawing on the target occurs.
     **/
    get updatedPixelMask(): BilevelBitmap | null;
    /**
     * Gets or sets a {@link BilevelBitmap} to monitor changes in the target bitmap.
     * Its pixels are used as boolean flags indicating changes in the corresponding pixels of the target bitmap.
     * When a pixel in the target bitmap is changed, the corresponding pixel in this bitmap is set to 1 (true).
     * The {@link BilevelBitmap} must have the same pixel size as the target bitmap.
     * It is user's responsibility to clear this bitmap (fill it with zeros) before any drawing on the target occurs.
     **/
    set updatedPixelMask(pixelMask: BilevelBitmap | null);
    /**
     * Gets or sets a {@link Bitmap} providing background for all drawing and filling operations.
     * The same bitmap cannot be used as background and target at the same time.
     * The background bitmap must be of the same pixel size as the target bitmap.
     **/
    get backgroundBitmap(): Bitmap | null;
    /**
     * Gets or sets a {@link Bitmap} providing background for all drawing and filling operations.
     * The same bitmap cannot be used as background and target at the same time.
     * The background bitmap must be of the same pixel size as the target bitmap.
     **/
    set backgroundBitmap(background: Bitmap | null);
    /**
     * Gets or sets a value indicating that copying pixels from the {@link BmpContext#backgroundBitmap}
     * to the target bitmap should not be marked as changed in the {@link BmpContext#updatedPixelMask}.
     * The default is false, indicating that pixels copied from the background bitmap
     * to the target are marked as changed.
     **/
    get backgroundContainsUnmodifiedImage(): boolean;
    /**
     * Gets or sets a value indicating that copying pixels from the {@link BmpContext#backgroundBitmap}
     * to the target bitmap should not be marked as changed in the {@link BmpContext#updatedPixelMask}.
     * The default is false, indicating that pixels copied from the background bitmap
     * to the target are marked as changed.
     **/
    set backgroundContainsUnmodifiedImage(value: boolean);
    /**
     * Gets or sets a {@link GrayscaleBitmap} providing transparency mask for all drawing and filling operations.
     * Pixels in the mask with value 0 are fully opaque and will completely mask any drawing (i.e. the pixels of the target bitmap will remain unchanged).
     * Pixels in the mask with value 255 are fully transparent, i.e. any drawing will have the same effect as if there was no mask.
     * Pixels with values between 0 and 255 will modify the transparency of the pixels being drawn according to their value.
     * Note that the transparency mask bitmap must be of the same pixel size as the target bitmap.
     **/
    get transparencyMask(): GrayscaleBitmap | null;
    /**
     * Gets or sets a {@link GrayscaleBitmap} providing transparency mask for all drawing and filling operations.
     * Pixels in the mask with value 0 are fully opaque and will completely mask any drawing (i.e. the pixels of the target bitmap will remain unchanged).
     * Pixels in the mask with value 255 are fully transparent, i.e. any drawing will have the same effect as if there was no mask.
     * Pixels with values between 0 and 255 will modify the transparency of the pixels being drawn according to their value.
     * Note that the transparency mask bitmap must be of the same pixel size as the target bitmap.
     **/
    set transparencyMask(mask: GrayscaleBitmap | null);
}