import { XmlElement } from '../types/xml-types';
import { Color } from '../index';
/**
 * Helper class for cleaning and clearing PowerPoint effects in XML structure
 */
export default class ModifyCleanupHelper {
    /**
     * Removes background color and fill elements from a shape
     * This removes both visible and hidden fill properties and sets explicit noFill
     *
     * @param element - The XML element representing the shape
     */
    static removeBackground: (element: XmlElement) => void;
    /**
     * Removes shape style but preserves fill color information by moving it to a standard fill element
     * This converts the p:style reference colors to direct solidFill colors on the shape
     *
     * @param element - The XML element representing the shape
     */
    static removeShapeStyle: (element: XmlElement) => void;
    /**
     * Removes border/outline from a shape
     * This function removes the a:ln (line) element which defines the border properties
     *
     * @param element - The XML element representing the shape
     */
    static removeBorder: (element: XmlElement) => void;
    /**
     * Removes unwanted visual effects from PowerPoint elements based on their type
     * Preserves certain effects for drawings but removes distracting effects from photos
     *
     * @param element - The XML element to clean up
     */
    static removeEffects(element: XmlElement): void;
    /**
     * Removes text formatting effects
     *
     * @param element - The XML element containing text runs to clean up
     */
    static removeTextEffects(element: XmlElement): void;
    /**
     * Removes extension list (extLst) elements from PowerPoint shapes
     *
     * The extLst (Extension List) element in OOXML contains application-specific extensions
     * and future compatibility features that may not be supported across all Office versions.
     * These extensions can include:
     * - Custom drawing effects and transformations
     * - Third-party add-in specific properties
     * - Version-specific features that may cause rendering inconsistencies
     * - Experimental or preview features
     *
     * Removing extLst helps ensure cross-version compatibility and prevents rendering
     * issues when the presentation is opened in different versions of PowerPoint or
     * other OOXML-compatible applications.
     *
     * @param element - The XML element containing extension lists to remove
     */
    static removeExtLst(element: XmlElement): void;
    static clearTextUnderlineToBold(element: XmlElement): void;
    static clearTextItalicsToBold(element: XmlElement): void;
    static clearTextUnderline(element: XmlElement): void;
    static clearTextBold(element: XmlElement): void;
    static clearTextSize(element: XmlElement): void;
    static clearTextColor(element: XmlElement, color?: Color): void;
    static removeFillEffects(element: XmlElement): void;
    static remove3dEffects(element: XmlElement): void;
    static removeShadowEffects(element: XmlElement): void;
    static removeColorAdjustment(element: XmlElement): void;
}