/**
 * PRESENTATION EDITOR CORE
 * Slide-based collaborative presentation editor
 *
 * Features:
 * - Slide canvas rendering
 * - Element palette (shapes, images, text)
 * - Slide navigation and management
 * - Element positioning and alignment
 * - Animations and transitions
 * - Presentation mode with speaker notes
 */
export interface Point {
    x: number;
    y: number;
}
export interface Rect {
    x: number;
    y: number;
    width: number;
    height: number;
}
export interface ElementStyle {
    fill?: string;
    stroke?: string;
    strokeWidth?: number;
    opacity?: number;
    rotation?: number;
    shadow?: {
        offsetX: number;
        offsetY: number;
        blur: number;
        color: string;
    };
}
export interface TextElement {
    type: 'text';
    id: string;
    bounds: Rect;
    content: string;
    fontSize: number;
    fontFamily: string;
    fontWeight: 'normal' | 'bold';
    textAlign: 'left' | 'center' | 'right';
    textColor: string;
    style: ElementStyle;
}
export interface ShapeElement {
    type: 'shape';
    id: string;
    shapeType: 'rectangle' | 'circle' | 'line' | 'polygon';
    bounds: Rect;
    style: ElementStyle;
}
export interface ImageElement {
    type: 'image';
    id: string;
    bounds: Rect;
    src: string;
    alt?: string;
    style: ElementStyle;
}
export type SlideElement = TextElement | ShapeElement | ImageElement;
export interface Slide {
    id: string;
    title: string;
    layout: 'blank' | 'title-content' | 'title-only';
    elements: SlideElement[];
    backgroundColor?: string;
    backgroundImage?: string;
    notes?: string;
    transitionType?: 'fade' | 'slide' | 'zoom';
    transitionDuration?: number;
}
export interface Presentation {
    id: string;
    title: string;
    slides: Slide[];
    currentSlideIndex: number;
    theme?: {
        primaryColor: string;
        secondaryColor: string;
        fontFamily: string;
    };
}
/**
 * Create new slide
 */
export declare function createSlide(id: string, title: string, layout: Slide['layout']): Slide;
/**
 * Add element to slide
 */
export declare function addElement(slide: Slide, element: SlideElement): Slide;
/**
 * Remove element from slide
 */
export declare function removeElement(slide: Slide, elementId: string): Slide;
/**
 * Update element
 */
export declare function updateElement(slide: Slide, elementId: string, updates: Partial<SlideElement>): Slide;
/**
 * Move element
 */
export declare function moveElement(slide: Slide, elementId: string, newBounds: Rect): Slide;
/**
 * Resize element
 */
export declare function resizeElement(slide: Slide, elementId: string, newBounds: Rect): Slide;
/**
 * Rotate element
 */
export declare function rotateElement(slide: Slide, elementId: string, angle: number): Slide;
/**
 * Align elements
 */
export declare function alignElements(slide: Slide, elementIds: string[], alignment: 'left' | 'center' | 'right' | 'top' | 'middle' | 'bottom'): Slide;
/**
 * Group elements (for selection)
 */
export declare function selectElements(slide: Slide, elementIds: string[]): SlideElement[];
/**
 * Duplicate element
 */
export declare function duplicateElement(slide: Slide, elementId: string): Slide;
/**
 * Bring element to front
 */
export declare function bringToFront(slide: Slide, elementId: string): Slide;
/**
 * Send element to back
 */
export declare function sendToBack(slide: Slide, elementId: string): Slide;
/**
 * Get element at point (for click detection)
 */
export declare function getElementAtPoint(slide: Slide, point: Point): SlideElement | undefined;
/**
 * Create text element
 */
export declare function createTextElement(id: string, bounds: Rect, content: string): TextElement;
/**
 * Create shape element
 */
export declare function createShapeElement(id: string, bounds: Rect, shapeType: ShapeElement['shapeType']): ShapeElement;
/**
 * Create image element
 */
export declare function createImageElement(id: string, bounds: Rect, src: string): ImageElement;
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