#!/usr/bin/env python3 """ Simple ereader application interface for pyWebLayout. This module provides a user-friendly wrapper around the ereader infrastructure, making it easy to build ebook reader applications with all essential features. Example: from pyWebLayout.layout.ereader_application import EbookReader # Create reader reader = EbookReader(page_size=(800, 1000)) # Load an EPUB reader.load_epub("mybook.epub") # Navigate reader.next_page() reader.previous_page() # Get current page page_image = reader.get_current_page() # Modify styling reader.increase_font_size() reader.set_line_spacing(8) # Chapter navigation chapters = reader.get_chapters() reader.jump_to_chapter("Chapter 1") # Position management reader.save_position("bookmark1") reader.load_position("bookmark1") """ from __future__ import annotations from typing import List, Tuple, Optional, Dict, Any, Union from pathlib import Path import os from PIL import Image from pyWebLayout.abstract.block import Block, HeadingLevel from pyWebLayout.layout.ereader_manager import EreaderLayoutManager from pyWebLayout.layout.ereader_layout import RenderingPosition from pyWebLayout.style.page_style import PageStyle from pyWebLayout.concrete.page import Page from pyWebLayout.core.query import QueryResult, SelectionRange from pyWebLayout.core.highlight import Highlight, HighlightColor, create_highlight_from_query_result from .gesture import TouchEvent, GestureType, GestureResponse, ActionType from .state import OverlayState from .managers import DocumentManager, SettingsManager, HighlightCoordinator from .handlers import GestureRouter from .overlays import NavigationOverlay, SettingsOverlay, TOCOverlay class EbookReader: """ Simple ereader application with all essential features. Features: - Load EPUB files - Forward/backward page navigation - Position save/load (based on abstract document structure) - Chapter navigation - Font size and spacing control - Current page retrieval as PIL Image The reader maintains position using abstract document structure (chapter/block/word indices), ensuring positions remain valid across font size and styling changes. """ def __init__(self, page_size: Tuple[int, int] = (800, 1000), margin: int = 40, background_color: Tuple[int, int, int] = (255, 255, 255), line_spacing: int = 5, inter_block_spacing: int = 15, bookmarks_dir: str = "ereader_bookmarks", highlights_dir: str = "highlights", buffer_size: int = 5): """ Initialize the ebook reader. Args: page_size: Page dimensions (width, height) in pixels margin: Page margin in pixels background_color: Background color as RGB tuple line_spacing: Spacing between lines in pixels inter_block_spacing: Spacing between blocks in pixels bookmarks_dir: Directory to store bookmarks and positions highlights_dir: Directory to store highlights buffer_size: Number of pages to cache for performance """ self.page_size = page_size self.bookmarks_dir = bookmarks_dir self.highlights_dir = highlights_dir self.buffer_size = buffer_size # Create page style self.page_style = PageStyle( background_color=background_color, border_width=margin, border_color=background_color, padding=(10, 10, 10, 10), line_spacing=line_spacing, inter_block_spacing=inter_block_spacing ) # Core managers (NEW: Refactored into separate modules) self.doc_manager = DocumentManager() self.settings_manager = SettingsManager() self.highlight_coordinator: Optional[HighlightCoordinator] = None self.gesture_router = GestureRouter(self) # Layout manager (initialized after loading) self.manager: Optional[EreaderLayoutManager] = None # Legacy compatibility properties self.blocks: Optional[List[Block]] = None self.document_id: Optional[str] = None self.book_title: Optional[str] = None self.book_author: Optional[str] = None self.highlight_manager = None # Will delegate to highlight_coordinator # Font scale state (delegated to settings_manager but kept for compatibility) self.base_font_scale = 1.0 self.font_scale_step = 0.1 # Overlay sub-applications self._overlay_subapps = { OverlayState.NAVIGATION: NavigationOverlay(self), OverlayState.SETTINGS: SettingsOverlay(self), OverlayState.TOC: TOCOverlay(self), } self._active_overlay = None # Current active overlay sub-application self.current_overlay_state = OverlayState.NONE def load_epub(self, epub_path: str) -> bool: """ Load an EPUB file into the reader. Args: epub_path: Path to the EPUB file Returns: True if loaded successfully, False otherwise """ # Use DocumentManager to load the EPUB success = self.doc_manager.load_epub(epub_path) if not success: return False # Set compatibility properties self.book_title = self.doc_manager.title self.book_author = self.doc_manager.author self.document_id = self.doc_manager.document_id self.blocks = self.doc_manager.blocks # Initialize the ereader manager self.manager = EreaderLayoutManager( blocks=self.blocks, page_size=self.page_size, document_id=self.document_id, buffer_size=self.buffer_size, page_style=self.page_style, bookmarks_dir=self.bookmarks_dir ) # Initialize managers that depend on layout manager self.settings_manager.set_manager(self.manager) # Initialize highlight coordinator for this document self.highlight_coordinator = HighlightCoordinator( document_id=self.document_id, highlights_dir=self.highlights_dir ) self.highlight_coordinator.set_layout_manager(self.manager) self.highlight_manager = self.highlight_coordinator.highlight_manager # Compatibility return True def load_html(self, html_string: str, title: str = "HTML Document", author: str = "Unknown", document_id: str = "html_doc") -> bool: """ Load HTML content directly into the reader. This is useful for rendering library screens, menus, or other HTML-based UI elements using the same rendering engine as the ebook reader. Args: html_string: HTML content to render title: Document title (for metadata) author: Document author (for metadata) document_id: Unique identifier for this HTML document Returns: True if loaded successfully, False otherwise """ # Use DocumentManager to load HTML success = self.doc_manager.load_html(html_string, title, author, document_id) if not success: return False # Set compatibility properties self.book_title = self.doc_manager.title self.book_author = self.doc_manager.author self.document_id = self.doc_manager.document_id self.blocks = self.doc_manager.blocks # Initialize the ereader manager self.manager = EreaderLayoutManager( blocks=self.blocks, page_size=self.page_size, document_id=self.document_id, buffer_size=self.buffer_size, page_style=self.page_style, bookmarks_dir=self.bookmarks_dir ) # Initialize managers that depend on layout manager self.settings_manager.set_manager(self.manager) # Initialize highlight coordinator for this document self.highlight_coordinator = HighlightCoordinator( document_id=self.document_id, highlights_dir=self.highlights_dir ) self.highlight_coordinator.set_layout_manager(self.manager) self.highlight_manager = self.highlight_coordinator.highlight_manager # Compatibility return True def is_loaded(self) -> bool: """Check if a book is currently loaded.""" return self.manager is not None def get_current_page(self, include_highlights: bool = True) -> Optional[Image.Image]: """ Get the current page as a PIL Image. If an overlay is currently open, returns the composited overlay image. Otherwise returns the base reading page. Args: include_highlights: Whether to overlay highlights on the page (only applies to base page) Returns: PIL Image of the current page (or overlay), or None if no book is loaded """ if not self.manager: return None # If an overlay is open, return the cached composited overlay image if self.is_overlay_open() and self._active_overlay: # Return the composited overlay from the sub-application if self._active_overlay._cached_base_page and self._active_overlay._cached_overlay_image: return self._active_overlay.composite_overlay( self._active_overlay._cached_base_page, self._active_overlay._cached_overlay_image ) try: page = self.manager.get_current_page() img = page.render() # Overlay highlights if requested and available if include_highlights and self.highlight_manager: # Get page bounds page_bounds = (0, 0, self.page_size[0], self.page_size[1]) highlights = self.highlight_manager.get_highlights_for_page(page_bounds) if highlights: img = self._render_highlights(img, highlights) return img except Exception as e: print(f"Error rendering page: {e}") return None def next_page(self) -> Optional[Image.Image]: """ Navigate to the next page. Returns: PIL Image of the next page, or None if at end of book """ if not self.manager: return None try: page = self.manager.next_page() if page: return page.render() return None except Exception as e: print(f"Error navigating to next page: {e}") return None def previous_page(self) -> Optional[Image.Image]: """ Navigate to the previous page. Returns: PIL Image of the previous page, or None if at beginning of book """ if not self.manager: return None try: page = self.manager.previous_page() if page: return page.render() return None except Exception as e: print(f"Error navigating to previous page: {e}") return None def save_position(self, name: str = "current_position") -> bool: """ Save the current reading position with a name. The position is saved based on abstract document structure (chapter, block, word indices), making it stable across font size and styling changes. Args: name: Name for this saved position Returns: True if saved successfully, False otherwise """ if not self.manager: return False try: self.manager.add_bookmark(name) return True except Exception as e: print(f"Error saving position: {e}") return False def load_position(self, name: str = "current_position") -> Optional[Image.Image]: """ Load a previously saved reading position. Args: name: Name of the saved position Returns: PIL Image of the page at the loaded position, or None if not found """ if not self.manager: return None try: page = self.manager.jump_to_bookmark(name) if page: return page.render() return None except Exception as e: print(f"Error loading position: {e}") return None def list_saved_positions(self) -> List[str]: """ Get a list of all saved position names. Returns: List of position names """ if not self.manager: return [] try: bookmarks = self.manager.list_bookmarks() return [name for name, _ in bookmarks] except Exception as e: print(f"Error listing positions: {e}") return [] def delete_position(self, name: str) -> bool: """ Delete a saved position. Args: name: Name of the position to delete Returns: True if deleted, False otherwise """ if not self.manager: return False return self.manager.remove_bookmark(name) def get_chapters(self) -> List[Tuple[str, int]]: """ Get a list of all chapters with their indices. Returns: List of (chapter_title, chapter_index) tuples """ if not self.manager: return [] try: toc = self.manager.get_table_of_contents() # Convert to simplified format (title, index) chapters = [] for i, (title, level, position) in enumerate(toc): chapters.append((title, i)) return chapters except Exception as e: print(f"Error getting chapters: {e}") return [] def get_chapter_positions(self) -> List[Tuple[str, RenderingPosition]]: """ Get chapter titles with their exact rendering positions. Returns: List of (title, position) tuples """ if not self.manager: return [] try: toc = self.manager.get_table_of_contents() return [(title, position) for title, level, position in toc] except Exception as e: print(f"Error getting chapter positions: {e}") return [] def jump_to_chapter(self, chapter: Union[str, int]) -> Optional[Image.Image]: """ Navigate to a specific chapter by title or index. Args: chapter: Chapter title (string) or chapter index (integer) Returns: PIL Image of the first page of the chapter, or None if not found """ if not self.manager: return None try: if isinstance(chapter, int): page = self.manager.jump_to_chapter_index(chapter) else: page = self.manager.jump_to_chapter(chapter) if page: return page.render() return None except Exception as e: print(f"Error jumping to chapter: {e}") return None def set_font_size(self, scale: float) -> Optional[Image.Image]: """ Set the font size scale and re-render current page. Args: scale: Font scale factor (1.0 = normal, 2.0 = double size, 0.5 = half size) Returns: PIL Image of the re-rendered page with new font size """ result = self.settings_manager.set_font_size(scale) if result: self.base_font_scale = self.settings_manager.font_scale # Sync compatibility property return result def increase_font_size(self) -> Optional[Image.Image]: """ Increase font size by one step and re-render. Returns: PIL Image of the re-rendered page """ result = self.settings_manager.increase_font_size() if result: self.base_font_scale = self.settings_manager.font_scale return result def decrease_font_size(self) -> Optional[Image.Image]: """ Decrease font size by one step and re-render. Returns: PIL Image of the re-rendered page """ result = self.settings_manager.decrease_font_size() if result: self.base_font_scale = self.settings_manager.font_scale return result def get_font_size(self) -> float: """ Get the current font size scale. Returns: Current font scale factor """ return self.settings_manager.get_font_size() def set_line_spacing(self, spacing: int) -> Optional[Image.Image]: """ Set line spacing using pyWebLayout's native support. Args: spacing: Line spacing in pixels Returns: PIL Image of the re-rendered page """ return self.settings_manager.set_line_spacing(spacing) def set_inter_block_spacing(self, spacing: int) -> Optional[Image.Image]: """ Set inter-block spacing using pyWebLayout's native support. Args: spacing: Inter-block spacing in pixels Returns: PIL Image of the re-rendered page """ return self.settings_manager.set_inter_block_spacing(spacing) def set_word_spacing(self, spacing: int) -> Optional[Image.Image]: """ Set word spacing using pyWebLayout's native support. Args: spacing: Word spacing in pixels Returns: PIL Image of the re-rendered page """ return self.settings_manager.set_word_spacing(spacing) def get_position_info(self) -> Dict[str, Any]: """ Get detailed information about the current position. Returns: Dictionary with position details including: - position: RenderingPosition details (chapter_index, block_index, word_index) - chapter: Current chapter info (title, level) - progress: Reading progress (0.0 to 1.0) - font_scale: Current font scale - book_title: Book title - book_author: Book author """ if not self.manager: return {} try: info = self.manager.get_position_info() info['book_title'] = self.book_title info['book_author'] = self.book_author return info except Exception as e: print(f"Error getting position info: {e}") return {} def get_reading_progress(self) -> float: """ Get reading progress as a percentage. Returns: Progress from 0.0 (beginning) to 1.0 (end) """ if not self.manager: return 0.0 return self.manager.get_reading_progress() def get_current_chapter_info(self) -> Optional[Dict[str, Any]]: """ Get information about the current chapter. Returns: Dictionary with chapter info (title, level) or None """ if not self.manager: return None try: chapter = self.manager.get_current_chapter() if chapter: return { 'title': chapter.title, 'level': chapter.level, 'block_index': chapter.block_index } return None except Exception as e: print(f"Error getting current chapter: {e}") return None def render_to_file(self, output_path: str) -> bool: """ Save the current page to an image file. Args: output_path: Path where to save the image (e.g., "page.png") Returns: True if saved successfully, False otherwise """ page_image = self.get_current_page() if page_image: try: page_image.save(output_path) return True except Exception as e: print(f"Error saving image: {e}") return False return False def get_book_info(self) -> Dict[str, Any]: """ Get information about the loaded book. Returns: Dictionary with book information """ return { 'title': self.book_title, 'author': self.book_author, 'document_id': self.document_id, 'total_blocks': len(self.blocks) if self.blocks else 0, 'total_chapters': len(self.get_chapters()), 'page_size': self.page_size, 'font_scale': self.base_font_scale } # ===== Settings Persistence ===== def get_current_settings(self) -> Dict[str, Any]: """ Get current rendering settings. Returns: Dictionary with all current settings """ return self.settings_manager.get_current_settings() def apply_settings(self, settings: Dict[str, Any]) -> bool: """ Apply rendering settings from a settings dictionary. This should be called after loading a book to restore user preferences. Args: settings: Dictionary with settings (font_scale, line_spacing, etc.) Returns: True if settings applied successfully, False otherwise """ success = self.settings_manager.apply_settings(settings) if success: # Sync compatibility property self.base_font_scale = self.settings_manager.font_scale return success # ===== Gesture Handling ===== # All business logic for touch input is handled here def handle_touch(self, event: TouchEvent) -> GestureResponse: """ Handle a touch event from HAL. **This is the main business logic entry point for all touch interactions.** Flask should call this and use the response to generate HTML/JSON. Args: event: TouchEvent from HAL with gesture type and coordinates Returns: GestureResponse with action and data for UI to process """ # Delegate to gesture router return self.gesture_router.handle_touch(event) def query_pixel(self, x: int, y: int) -> Optional[QueryResult]: """ Direct pixel query for debugging/tools. Args: x, y: Pixel coordinates Returns: QueryResult or None if nothing at that location """ if not self.manager: return None page = self.manager.get_current_page() return page.query_point((x, y)) def _handle_overlay_tap(self, x: int, y: int) -> GestureResponse: """ Handle tap when overlay is open. Delegates to the active overlay sub-application for handling. If the response indicates the overlay should be closed, closes it. """ if not self._active_overlay: # No active overlay, close legacy overlay if any self.close_overlay() return GestureResponse(ActionType.OVERLAY_CLOSED, {}) # Delegate to the active overlay sub-application response = self._active_overlay.handle_tap(x, y) # If the response indicates overlay should be closed, close it if response.action in (ActionType.OVERLAY_CLOSED, ActionType.CHAPTER_SELECTED, ActionType.BOOKMARK_SELECTED): self.close_overlay() return response # =================================================================== # Highlighting API # =================================================================== def highlight_word(self, x: int, y: int, color: Tuple[int, int, int, int] = None, note: Optional[str] = None, tags: Optional[List[str]] = None) -> Optional[str]: """ Highlight a word at the given pixel location. Args: x: X coordinate y: Y coordinate color: RGBA color tuple (defaults to yellow) note: Optional annotation for this highlight tags: Optional categorization tags Returns: Highlight ID if successful, None otherwise """ if not self.manager or not self.highlight_manager: return None try: # Query the pixel to find the word result = self.query_pixel(x, y) if not result or not result.text: return None # Use default color if not provided if color is None: color = HighlightColor.YELLOW.value # Create highlight from query result highlight = create_highlight_from_query_result( result, color=color, note=note, tags=tags ) # Add to manager self.highlight_manager.add_highlight(highlight) return highlight.id except Exception as e: print(f"Error highlighting word: {e}") return None def highlight_selection(self, start: Tuple[int, int], end: Tuple[int, int], color: Tuple[int, int, int, int] = None, note: Optional[str] = None, tags: Optional[List[str]] = None) -> Optional[str]: """ Highlight a range of words between two points. Args: start: Starting (x, y) coordinates end: Ending (x, y) coordinates color: RGBA color tuple (defaults to yellow) note: Optional annotation tags: Optional categorization tags Returns: Highlight ID if successful, None otherwise """ if not self.manager or not self.highlight_manager: return None try: page = self.manager.get_current_page() selection_range = page.query_range(start, end) if not selection_range.results: return None # Use default color if not provided if color is None: color = HighlightColor.YELLOW.value # Create highlight from selection range highlight = create_highlight_from_query_result( selection_range, color=color, note=note, tags=tags ) # Add to manager self.highlight_manager.add_highlight(highlight) return highlight.id except Exception as e: print(f"Error highlighting selection: {e}") return None def remove_highlight(self, highlight_id: str) -> bool: """ Remove a highlight by ID. Args: highlight_id: ID of the highlight to remove Returns: True if removed successfully, False otherwise """ if not self.highlight_manager: return False return self.highlight_manager.remove_highlight(highlight_id) def list_highlights(self) -> List[Highlight]: """ Get all highlights for the current document. Returns: List of Highlight objects """ if not self.highlight_manager: return [] return self.highlight_manager.list_highlights() def get_highlights_for_current_page(self) -> List[Highlight]: """ Get highlights that appear on the current page. Returns: List of Highlight objects on this page """ if not self.manager or not self.highlight_manager: return [] page_bounds = (0, 0, self.page_size[0], self.page_size[1]) return self.highlight_manager.get_highlights_for_page(page_bounds) def clear_highlights(self) -> None: """Remove all highlights from the current document.""" if self.highlight_manager: self.highlight_manager.clear_all() def _render_highlights(self, image: Image.Image, highlights: List[Highlight]) -> Image.Image: """ Render highlight overlays on an image using multiply blend mode. This preserves text contrast by multiplying the highlight color with the underlying pixels, like a real highlighter pen. Args: image: Base PIL Image to draw on highlights: List of Highlight objects to render Returns: New PIL Image with highlights overlaid """ import numpy as np # Convert to RGB for processing (we'll add alpha back later if needed) original_mode = image.mode if image.mode == 'RGBA': # Separate alpha channel rgb_image = image.convert('RGB') alpha_channel = image.split()[-1] else: rgb_image = image.convert('RGB') alpha_channel = None # Convert to numpy array for efficient processing img_array = np.array(rgb_image, dtype=np.float32) # Process each highlight for highlight in highlights: # Extract RGB components from highlight color (ignore alpha) h_r, h_g, h_b = highlight.color[0], highlight.color[1], highlight.color[2] # Create highlight multiplier (normalize to 0-1 range) highlight_color = np.array([h_r / 255.0, h_g / 255.0, h_b / 255.0], dtype=np.float32) for hx, hy, hw, hh in highlight.bounds: # Ensure bounds are within image hx, hy = max(0, hx), max(0, hy) x2, y2 = min(rgb_image.width, hx + hw), min(rgb_image.height, hy + hh) if x2 <= hx or y2 <= hy: continue # Extract the region to highlight region = img_array[hy:y2, hx:x2, :] # Multiply with highlight color (like a real highlighter) # This darkens the image proportionally to the highlight color highlighted = region * highlight_color # Put the highlighted region back img_array[hy:y2, hx:x2, :] = highlighted # Convert back to uint8 and create PIL Image img_array = np.clip(img_array, 0, 255).astype(np.uint8) result = Image.fromarray(img_array, mode='RGB') # Restore alpha channel if original had one if alpha_channel is not None and original_mode == 'RGBA': result = result.convert('RGBA') result.putalpha(alpha_channel) return result # =================================================================== # Overlay Management API # =================================================================== def open_toc_overlay(self) -> Optional[Image.Image]: """ Open the table of contents overlay. Returns: Composited image with TOC overlay on top of current page, or None if no book loaded """ if not self.is_loaded(): return None # Get current page as base base_page = self.get_current_page(include_highlights=False) if not base_page: return None # Get chapters chapters = self.get_chapters() # Use the TOC sub-application overlay_subapp = self._overlay_subapps[OverlayState.TOC] result = overlay_subapp.open(base_page, chapters=chapters) # Update state self._active_overlay = overlay_subapp self.current_overlay_state = OverlayState.TOC return result def open_settings_overlay(self) -> Optional[Image.Image]: """ Open the settings overlay with current settings values. Returns: Composited image with settings overlay on top of current page, or None if no book loaded """ if not self.is_loaded(): return None # Get current page as base base_page = self.get_current_page(include_highlights=False) if not base_page: return None # Get current settings font_scale = self.base_font_scale line_spacing = self.page_style.line_spacing inter_block_spacing = self.page_style.inter_block_spacing word_spacing = self.page_style.word_spacing # Use the Settings sub-application overlay_subapp = self._overlay_subapps[OverlayState.SETTINGS] result = overlay_subapp.open( base_page, font_scale=font_scale, line_spacing=line_spacing, inter_block_spacing=inter_block_spacing, word_spacing=word_spacing ) # Update state self._active_overlay = overlay_subapp self.current_overlay_state = OverlayState.SETTINGS return result def open_bookmarks_overlay(self) -> Optional[Image.Image]: """ Open the bookmarks overlay. This is a convenience method that opens the navigation overlay with the bookmarks tab active. Returns: Composited image with bookmarks overlay on top of current page, or None if no book loaded """ return self.open_navigation_overlay(active_tab="bookmarks") def open_navigation_overlay(self, active_tab: str = "contents") -> Optional[Image.Image]: """ Open the unified navigation overlay with Contents and Bookmarks tabs. This is the new unified overlay that replaces separate TOC and Bookmarks overlays. It provides a tabbed interface for switching between table of contents and bookmarks. Args: active_tab: Which tab to show initially ("contents" or "bookmarks") Returns: Composited image with navigation overlay on top of current page, or None if no book loaded """ if not self.is_loaded(): return None # Get current page as base base_page = self.get_current_page(include_highlights=False) if not base_page: return None # Get chapters for Contents tab chapters = self.get_chapters() # Get bookmarks for Bookmarks tab bookmark_names = self.list_saved_positions() bookmarks = [ {"name": name, "position": f"Saved position"} for name in bookmark_names ] # Use the Navigation sub-application overlay_subapp = self._overlay_subapps[OverlayState.NAVIGATION] result = overlay_subapp.open( base_page, chapters=chapters, bookmarks=bookmarks, active_tab=active_tab ) # Update state self._active_overlay = overlay_subapp self.current_overlay_state = OverlayState.NAVIGATION return result def switch_navigation_tab(self, new_tab: str) -> Optional[Image.Image]: """ Switch between tabs in the navigation overlay. Args: new_tab: Tab to switch to ("contents" or "bookmarks") Returns: Updated image with new tab active, or None if navigation overlay is not open """ if self.current_overlay_state != OverlayState.NAVIGATION: return None # Delegate to the Navigation sub-application if isinstance(self._active_overlay, NavigationOverlay): result = self._active_overlay.switch_tab(new_tab) return result if result else self.get_current_page() return None def close_overlay(self) -> Optional[Image.Image]: """ Close the current overlay and return to reading view. Returns: Base page image without overlay, or None if no overlay was open """ if self.current_overlay_state == OverlayState.NONE: return None # Close the active overlay sub-application if self._active_overlay: self._active_overlay.close() self._active_overlay = None # Update state self.current_overlay_state = OverlayState.NONE # Return fresh current page return self.get_current_page() def is_overlay_open(self) -> bool: """Check if an overlay is currently open.""" return self.current_overlay_state != OverlayState.NONE def get_overlay_state(self) -> OverlayState: """Get current overlay state.""" return self.current_overlay_state def close(self): """ Close the reader and save current position. Should be called when done with the reader. """ if self.manager: self.manager.shutdown() self.manager = None def __enter__(self): """Context manager support.""" return self def __exit__(self, exc_type, exc_val, exc_tb): """Context manager cleanup.""" self.close() def __del__(self): """Cleanup on deletion.""" self.close() # Convenience function def create_ebook_reader(page_size: Tuple[int, int] = (800, 1000), **kwargs) -> EbookReader: """ Create an ebook reader with sensible defaults. Args: page_size: Page dimensions (width, height) in pixels **kwargs: Additional arguments passed to EbookReader Returns: Configured EbookReader instance """ return EbookReader(page_size=page_size, **kwargs)