init: 폴더구조 설계 및 인프라 설계

2026-07-24 14:31:53 +09:00
parent 34ad612281
commit f9c463f87a
1839 changed files with 323096 additions and 1 deletions
@@ -0,0 +1,49 @@
+"""Directly exposed API classes, Presentation for now.
+
+Provides some syntactic sugar for interacting with the pptx.presentation.Package graph and also
+provides some insulation so not so many classes in the other modules need to be named as internal
+(leading underscore).
+"""
+
+from __future__ import annotations
+
+import os
+from typing import IO, TYPE_CHECKING
+
+from pptx.opc.constants import CONTENT_TYPE as CT
+from pptx.package import Package
+
+if TYPE_CHECKING:
+    from pptx import presentation
+    from pptx.parts.presentation import PresentationPart
+
+
+def Presentation(pptx: str | IO[bytes] | None = None) -> presentation.Presentation:
+    """
+    Return a |Presentation| object loaded from *pptx*, where *pptx* can be
+    either a path to a ``.pptx`` file (a string) or a file-like object. If
+    *pptx* is missing or ``None``, the built-in default presentation
+    "template" is loaded.
+    """
+    if pptx is None:
+        pptx = _default_pptx_path()
+
+    presentation_part = Package.open(pptx).main_document_part
+
+    if not _is_pptx_package(presentation_part):
+        tmpl = "file '%s' is not a PowerPoint file, content type is '%s'"
+        raise ValueError(tmpl % (pptx, presentation_part.content_type))
+
+    return presentation_part.presentation
+
+
+def _default_pptx_path() -> str:
+    """Return the path to the built-in default .pptx package."""
+    _thisdir = os.path.split(__file__)[0]
+    return os.path.join(_thisdir, "templates", "default.pptx")
+
+
+def _is_pptx_package(prs_part: PresentationPart):
+    """Return |True| if *prs_part* is a valid main document part, |False| otherwise."""
+    valid_content_types = (CT.PML_PRESENTATION_MAIN, CT.PML_PRES_MACRO_MAIN)
+    return prs_part.content_type in valid_content_types