192 lines
8.1 KiB
Python
192 lines
8.1 KiB
Python
from typing import List, Annotated
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from fastapi import APIRouter, HTTPException, status, Response, Path, Query
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from app.services import engine
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from app.services.store import document_store
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from app.routers.documents import FontInfoResponse
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router = APIRouter(prefix="/documents/{document_id}/pages", tags=["render"])
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compat_router = APIRouter(tags=["render"])
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@router.get("/{page_index}/render")
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def render_page(document_id: str, page_index: Annotated[int, Path(ge=0)], dpi: int = 96) -> Response:
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if not engine.is_available():
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raise HTTPException(
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status_code=status.HTTP_501_NOT_IMPLEMENTED,
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detail="Engine bridge (bindings/python) not yet available."
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)
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doc_info = document_store.get_document(document_id)
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if not doc_info:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Document not found")
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try:
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doc = doc_info["doc_instance"]
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page = doc.get_page(page_index)
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img = page.render(dpi)
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return Response(content=img.data, media_type="image/png")
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except IndexError:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Page index out of bounds")
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except Exception as e:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
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@router.get("/{page_index}/text")
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def extract_page_text(document_id: str, page_index: Annotated[int, Path(ge=0)]):
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if not engine.is_available():
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raise HTTPException(
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status_code=status.HTTP_501_NOT_IMPLEMENTED,
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detail="Engine bridge (bindings/python) not yet available."
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)
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doc_info = document_store.get_document(document_id)
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if not doc_info:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Document not found")
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try:
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doc = doc_info["doc_instance"]
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page = doc.get_page(page_index)
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text = page.extract_text()
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annots = page.extract_annotations_text()
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if annots:
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text += "\n" + "\n".join(annots)
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glyphs = page.extract_text_with_bounds()
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return {"text": text, "glyphs": glyphs}
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except IndexError:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Page index out of bounds")
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except Exception as e:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
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@compat_router.get("/render/{document_id}")
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def render_page_compat(document_id: str, page: Annotated[int, Query(ge=0)] = 0, zoom: float = 1.0, rotation: int = 0) -> Response:
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dpi = int(96 * zoom)
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return render_page(document_id, page, dpi)
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@router.get("/{page_index}")
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def get_page_info(document_id: str, page_index: Annotated[int, Path(ge=0)]):
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if not engine.is_available():
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raise HTTPException(
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status_code=status.HTTP_501_NOT_IMPLEMENTED,
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detail="Engine bridge (bindings/python) not yet available."
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)
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doc_info = document_store.get_document(document_id)
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if not doc_info:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Document not found")
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try:
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doc = doc_info["doc_instance"]
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page = doc.get_page(page_index)
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return {"width": page.width, "height": page.height}
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except IndexError:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Page index out of bounds")
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except Exception as e:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
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@router.get("/{page_index}/transform/page-to-device")
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def transform_page_to_device(document_id: str, page_index: Annotated[int, Path(ge=0)], x: float, y: float, device_width: int, device_height: int, rotate: int = 0):
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if not engine.is_available():
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raise HTTPException(status_code=status.HTTP_501_NOT_IMPLEMENTED, detail="Engine unavailable")
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doc_info = document_store.get_document(document_id)
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if not doc_info:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Document not found")
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try:
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pdfengine = engine.require()
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doc = doc_info["doc_instance"]
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page = doc.get_page(page_index)
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pt = pdfengine.Point2D(x=x, y=y)
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res = page.page_to_device(pt, device_width, device_height, rotate)
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return {"x": res.x, "y": res.y}
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except Exception as e:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
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@router.get("/{page_index}/transform/device-to-page")
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def transform_device_to_page(document_id: str, page_index: Annotated[int, Path(ge=0)], x: int, y: int, device_width: int, device_height: int, rotate: int = 0):
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if not engine.is_available():
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raise HTTPException(status_code=status.HTTP_501_NOT_IMPLEMENTED, detail="Engine unavailable")
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doc_info = document_store.get_document(document_id)
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if not doc_info:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Document not found")
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try:
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pdfengine = engine.require()
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doc = doc_info["doc_instance"]
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page = doc.get_page(page_index)
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pt = pdfengine.DevicePoint(x=x, y=y)
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res = page.device_to_page(pt, device_width, device_height, rotate)
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return {"x": res.x, "y": res.y}
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except Exception as e:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
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@router.get("/{page_index}/fonts", response_model=List[FontInfoResponse])
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def get_page_fonts(document_id: str, page_index: Annotated[int, Path(ge=0)]) -> List[FontInfoResponse]:
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if not engine.is_available():
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raise HTTPException(
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status_code=status.HTTP_501_NOT_IMPLEMENTED,
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detail="Engine bridge (bindings/python) not yet available."
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)
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doc_info = document_store.get_document(document_id)
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if not doc_info:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Document not found")
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try:
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doc = doc_info["doc_instance"]
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page = doc.get_page(page_index)
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fonts = page.get_fonts()
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return [
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FontInfoResponse(
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fontName=f.font_name,
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type=f.type,
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isEmbedded=f.is_embedded,
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isSubset=f.is_subset,
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isVertical=f.is_vertical,
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encoding=f.encoding,
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hasToUnicode=f.has_to_unicode,
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cmapName=f.cmap_name,
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cidSystemInfo=f.cid_system_info,
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subsetTag=f.subset_tag,
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sourceType=f.source_type,
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substitutedFrom=f.substituted_from,
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substitutedTo=f.substituted_to,
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normalizedFamily=f.normalized_family,
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internalFontId=f.internal_font_id,
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flags=f.flags,
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ascent=f.ascent,
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descent=f.descent,
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capHeight=f.cap_height
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)
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for f in fonts
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]
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except IndexError:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Page index out of range")
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except Exception as e:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
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@router.get("/{page_index}/fonts/glyph-width")
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def get_page_glyph_width(document_id: str, page_index: Annotated[int, Path(ge=0)], font_name: str, charcode: int, font_size: Annotated[float, Query(gt=0)] = 12.0):
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if not engine.is_available():
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raise HTTPException(
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status_code=status.HTTP_501_NOT_IMPLEMENTED,
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detail="Engine bridge (bindings/python) not yet available."
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)
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doc_info = document_store.get_document(document_id)
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if not doc_info:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Document not found")
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try:
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doc = doc_info["doc_instance"]
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page = doc.get_page(page_index)
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width = page.get_glyph_width(font_name, charcode, font_size)
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return {"width": width}
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except IndexError:
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raise HTTPException(status_code=status.HTTP_404_NOT_FOUND, detail="Page index out of range")
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except Exception as e:
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raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail=str(e))
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