"""Template config generation helpers used by `pptx init-config`.""" from __future__ import annotations from pathlib import Path from pptx import Presentation from .inspect_pptx import resolve_theme_colors def build_init_config_output(template_path: str) -> str: """Generate starter template-config YAML by introspecting a PPTX template.""" prs = Presentation(template_path) theme_colors = resolve_theme_colors(prs) # --- Slide dimensions --- slide_w = int(prs.slide_width or 12192000) slide_h = int(prs.slide_height or 6858000) # --- Theme fonts --- headline_font = "Calibri" body_font = "Calibri" try: from lxml import etree as _etree ns = "http://schemas.openxmlformats.org/drawingml/2006/main" master_part = prs.slide_masters[0].part for rel in master_part.rels.values(): if "theme" in str(rel.reltype): theme_el: _etree._Element = rel.target_part.element # type: ignore[union-attr] major_el: _etree._Element | None = theme_el.find( # type: ignore[assignment] f".//{{{ns}}}majorFont/{{{ns}}}latin" ) minor_el: _etree._Element | None = theme_el.find( # type: ignore[assignment] f".//{{{ns}}}minorFont/{{{ns}}}latin" ) if major_el is not None: tf = str(major_el.get("typeface") or "") # type: ignore[arg-type] if tf: headline_font = tf if minor_el is not None: tf = str(minor_el.get("typeface") or "") # type: ignore[arg-type] if tf: body_font = tf break except Exception: pass # --- Placeholders from first content layout --- placeholder_map: dict[str, int] = {"title": 0, "subtitle": 1} layout_names: list[str] = [] for layout in prs.slide_layouts: if layout.name: layout_names.append(layout.name) # Scan all layouts for placeholder indices for layout in prs.slide_layouts: for ph in layout.placeholders: name_lower = ph.name.lower() idx = ph.placeholder_format.idx if "tracker" in name_lower or "on-page" in name_lower or "breadcrumb" in name_lower: placeholder_map["tracker"] = idx elif "source" in name_lower or "footnote" in name_lower: placeholder_map.setdefault("source", idx) # --- Estimate layout geometry from first content layout --- # Find a "Default" or first non-title layout content_layout = None for layout in prs.slide_layouts: if layout.name and "default" in layout.name.lower(): content_layout = layout break if content_layout is None and len(prs.slide_layouts) > 1: content_layout = prs.slide_layouts[1] # Estimate margins and key Y positions from placeholder positions left_margin = 554736 right_margin = 554736 title_y = 182372 content_start_y = 1710000 footer_y = int(slide_h * 0.94) header_line_y = 1181907 if content_layout is not None: for ph in content_layout.placeholders: idx = ph.placeholder_format.idx if idx == 0: # title title_y = int(ph.top) left_margin = int(ph.left) right_margin = slide_w - int(ph.left) - int(ph.width) elif int(ph.top) > slide_h * 0.5: # Below midpoint — likely footer area footer_y = int(ph.top) elif int(ph.top) > content_start_y * 0.8: content_start_y = int(ph.top) # Header line is typically just below subtitle for ph in content_layout.placeholders: idx = ph.placeholder_format.idx if idx == 1: # subtitle header_line_y = int(ph.top) + int(ph.height) + 10000 break # --- Map theme colors to semantic names --- def _theme_hex(name: str, fallback: str) -> str: val = theme_colors.get(name, fallback) return f"#{val}" if not val.startswith("#") else val dk1 = _theme_hex("dk1", "000000") lt1 = _theme_hex("lt1", "FFFFFF") dk2 = _theme_hex("dk2", "444444") lt2 = _theme_hex("lt2", "F0F0F0") accent1 = _theme_hex("accent1", "4472C4") accent3 = _theme_hex("accent3", "A5A5A5") # --- Build config --- config_lines = [ f"# Template config generated from: {Path(template_path).name}", "# Generated by: pptx init-config", "# Review and adjust values — especially bullets, spacing, and colors.", "", "colors:", f' midnight: "{dk1}" # dk1 / primary text', f' light_1: "{lt1}" # lt1 / primary background', f' light_2: "{lt2}" # lt2 / secondary background', f' slate: "{dk2}" # dk2 / secondary text', f' electric_blue: "{accent1}" # accent1 / primary accent', f' cyan: "{accent3}" # accent3 / secondary accent', ' red: "#E5546C" # RAG: critical (adjust to your palette)', ' orange: "#FAA082" # RAG: high', ' beige: "#E8BDAD" # RAG: neutral', ' light_green: "#92D050" # RAG: medium', ' green: "#00B050" # RAG: low', "", "fonts:", f' headline: "{headline_font}"', f' body: "{body_font}"', "", "font_sizes:", " title: 24", " subtitle: 16", " table_header: 14", " table_body: 12", " footnote: 8", " tracker: 8", " default: 12", "", "# Soft limits used for agent-friendly warnings", "text_limits:", " title_max_lines: 2", " subtitle_max_lines: 1", " title_slide_subtitle_max_lines: 1", "", "layout:", f" slide_width_emu: {slide_w}", f" slide_height_emu: {slide_h}", f" left_margin_emu: {left_margin}", f" right_margin_emu: {right_margin}", f" top_margin_emu: {title_y}", f" tracker_y_emu: {max(title_y - 107000, 75000)}", f" title_y_emu: {title_y}", f" subtitle_y_emu: {title_y + 720000}", f" header_line_y_emu: {header_line_y}", f" content_start_y_emu: {content_start_y}", f" footer_line_y_emu: {footer_y}", f" footer_y_emu: {footer_y + 45000}", "", "placeholders:", f" title: {placeholder_map.get('title', 0)}", f" subtitle: {placeholder_map.get('subtitle', 1)}", ] if "tracker" in placeholder_map: config_lines.append(f" tracker: {placeholder_map['tracker']}") if "source" in placeholder_map: config_lines.append(f" source: {placeholder_map['source']}") config_lines.extend( [ "", "default_colors:", ' body_text: "tx1"', ' col_header: "tx1"', ' col_superheader: "tx1"', ' row_header: "accent1" # adjust: which theme slot is your accent color?', ' row_superheader: "tx1"', ' divider: "tx1"', ' link: "accent1"', "", "dividers:", " header_pt: 1.5", " row_pt: 0.5", " footer_pt: 0.5", "", "# Bullet hierarchy — extracted from the slide master lstStyle.", "# Run: pptx xml