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authorS. Solomon Darnell2025-03-28 21:52:21 -0500
committerS. Solomon Darnell2025-03-28 21:52:21 -0500
commit4a52a71956a8d46fcb7294ac71734504bb09bcc2 (patch)
treeee3dc5af3b6313e921cd920906356f5d4febc4ed /.venv/lib/python3.12/site-packages/pptx/oxml/shapes/picture.py
parentcc961e04ba734dd72309fb548a2f97d67d578813 (diff)
downloadgn-ai-master.tar.gz
two version of R2R are here HEAD master
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+"""lxml custom element classes for picture-related XML elements."""
+
+from __future__ import annotations
+
+from typing import TYPE_CHECKING, cast
+from xml.sax.saxutils import escape
+
+from pptx.oxml import parse_xml
+from pptx.oxml.ns import nsdecls
+from pptx.oxml.shapes.shared import BaseShapeElement
+from pptx.oxml.xmlchemy import BaseOxmlElement, OneAndOnlyOne
+
+if TYPE_CHECKING:
+    from pptx.oxml.shapes.shared import CT_ShapeProperties
+    from pptx.util import Length
+
+
+class CT_Picture(BaseShapeElement):
+    """`p:pic` element.
+
+    Represents a picture shape (an image placement on a slide).
+    """
+
+    nvPicPr = OneAndOnlyOne("p:nvPicPr")
+    blipFill = OneAndOnlyOne("p:blipFill")
+    spPr: CT_ShapeProperties = OneAndOnlyOne("p:spPr")  # pyright: ignore[reportAssignmentType]
+
+    @property
+    def blip_rId(self) -> str | None:
+        """Value of `p:blipFill/a:blip/@r:embed`.
+
+        Returns |None| if not present.
+        """
+        blip = self.blipFill.blip
+        if blip is not None and blip.rEmbed is not None:
+            return blip.rEmbed
+        return None
+
+    def crop_to_fit(self, image_size, view_size):
+        """
+        Set cropping values in `p:blipFill/a:srcRect` such that an image of
+        *image_size* will stretch to exactly fit *view_size* when its aspect
+        ratio is preserved.
+        """
+        self.blipFill.crop(self._fill_cropping(image_size, view_size))
+
+    def get_or_add_ln(self):
+        """
+        Return the <a:ln> grandchild element, newly added if not present.
+        """
+        return self.spPr.get_or_add_ln()
+
+    @property
+    def ln(self):
+        """
+        ``<a:ln>`` grand-child element or |None| if not present
+        """
+        return self.spPr.ln
+
+    @classmethod
+    def new_ph_pic(cls, id_, name, desc, rId):
+        """
+        Return a new `p:pic` placeholder element populated with the supplied
+        parameters.
+        """
+        return parse_xml(cls._pic_ph_tmpl() % (id_, name, desc, rId))
+
+    @classmethod
+    def new_pic(cls, shape_id, name, desc, rId, x, y, cx, cy):
+        """Return new `<p:pic>` element tree configured with supplied parameters."""
+        return parse_xml(cls._pic_tmpl() % (shape_id, name, escape(desc), rId, x, y, cx, cy))
+
+    @classmethod
+    def new_video_pic(
+        cls,
+        shape_id: int,
+        shape_name: str,
+        video_rId: str,
+        media_rId: str,
+        poster_frame_rId: str,
+        x: Length,
+        y: Length,
+        cx: Length,
+        cy: Length,
+    ) -> CT_Picture:
+        """Return a new `p:pic` populated with the specified video."""
+        return cast(
+            CT_Picture,
+            parse_xml(
+                cls._pic_video_tmpl()
+                % (
+                    shape_id,
+                    shape_name,
+                    video_rId,
+                    media_rId,
+                    poster_frame_rId,
+                    x,
+                    y,
+                    cx,
+                    cy,
+                )
+            ),
+        )
+
+    @property
+    def srcRect_b(self):
+        """Value of `p:blipFill/a:srcRect/@b` or 0.0 if not present."""
+        return self._srcRect_x("b")
+
+    @srcRect_b.setter
+    def srcRect_b(self, value):
+        self.blipFill.get_or_add_srcRect().b = value
+
+    @property
+    def srcRect_l(self):
+        """Value of `p:blipFill/a:srcRect/@l` or 0.0 if not present."""
+        return self._srcRect_x("l")
+
+    @srcRect_l.setter
+    def srcRect_l(self, value):
+        self.blipFill.get_or_add_srcRect().l = value  # noqa
+
+    @property
+    def srcRect_r(self):
+        """Value of `p:blipFill/a:srcRect/@r` or 0.0 if not present."""
+        return self._srcRect_x("r")
+
+    @srcRect_r.setter
+    def srcRect_r(self, value):
+        self.blipFill.get_or_add_srcRect().r = value
+
+    @property
+    def srcRect_t(self):
+        """Value of `p:blipFill/a:srcRect/@t` or 0.0 if not present."""
+        return self._srcRect_x("t")
+
+    @srcRect_t.setter
+    def srcRect_t(self, value):
+        self.blipFill.get_or_add_srcRect().t = value
+
+    def _fill_cropping(self, image_size, view_size):
+        """
+        Return a (left, top, right, bottom) 4-tuple containing the cropping
+        values required to display an image of *image_size* in *view_size*
+        when stretched proportionately. Each value is a percentage expressed
+        as a fraction of 1.0, e.g. 0.425 represents 42.5%. *image_size* and
+        *view_size* are each (width, height) pairs.
+        """
+
+        def aspect_ratio(width, height):
+            return width / height
+
+        ar_view = aspect_ratio(*view_size)
+        ar_image = aspect_ratio(*image_size)
+
+        if ar_view < ar_image:  # image too wide
+            crop = (1.0 - (ar_view / ar_image)) / 2.0
+            return (crop, 0.0, crop, 0.0)
+        if ar_view > ar_image:  # image too tall
+            crop = (1.0 - (ar_image / ar_view)) / 2.0
+            return (0.0, crop, 0.0, crop)
+        return (0.0, 0.0, 0.0, 0.0)
+
+    @classmethod
+    def _pic_ph_tmpl(cls):
+        return (
+            "<p:pic %s>\n"
+            "  <p:nvPicPr>\n"
+            '    <p:cNvPr id="%%d" name="%%s" descr="%%s"/>\n'
+            "    <p:cNvPicPr>\n"
+            '      <a:picLocks noGrp="1" noChangeAspect="1"/>\n'
+            "    </p:cNvPicPr>\n"
+            "    <p:nvPr/>\n"
+            "  </p:nvPicPr>\n"
+            "  <p:blipFill>\n"
+            '    <a:blip r:embed="%%s"/>\n'
+            "    <a:stretch>\n"
+            "      <a:fillRect/>\n"
+            "    </a:stretch>\n"
+            "  </p:blipFill>\n"
+            "  <p:spPr/>\n"
+            "</p:pic>" % nsdecls("p", "a", "r")
+        )
+
+    @classmethod
+    def _pic_tmpl(cls):
+        return (
+            "<p:pic %s>\n"
+            "  <p:nvPicPr>\n"
+            '    <p:cNvPr id="%%d" name="%%s" descr="%%s"/>\n'
+            "    <p:cNvPicPr>\n"
+            '      <a:picLocks noChangeAspect="1"/>\n'
+            "    </p:cNvPicPr>\n"
+            "    <p:nvPr/>\n"
+            "  </p:nvPicPr>\n"
+            "  <p:blipFill>\n"
+            '    <a:blip r:embed="%%s"/>\n'
+            "    <a:stretch>\n"
+            "      <a:fillRect/>\n"
+            "    </a:stretch>\n"
+            "  </p:blipFill>\n"
+            "  <p:spPr>\n"
+            "    <a:xfrm>\n"
+            '      <a:off x="%%d" y="%%d"/>\n'
+            '      <a:ext cx="%%d" cy="%%d"/>\n'
+            "    </a:xfrm>\n"
+            '    <a:prstGeom prst="rect">\n'
+            "      <a:avLst/>\n"
+            "    </a:prstGeom>\n"
+            "  </p:spPr>\n"
+            "</p:pic>" % nsdecls("a", "p", "r")
+        )
+
+    @classmethod
+    def _pic_video_tmpl(cls):
+        return (
+            "<p:pic %s>\n"
+            "  <p:nvPicPr>\n"
+            '    <p:cNvPr id="%%d" name="%%s">\n'
+            '      <a:hlinkClick r:id="" action="ppaction://media"/>\n'
+            "    </p:cNvPr>\n"
+            "    <p:cNvPicPr>\n"
+            '      <a:picLocks noChangeAspect="1"/>\n'
+            "    </p:cNvPicPr>\n"
+            "    <p:nvPr>\n"
+            '      <a:videoFile r:link="%%s"/>\n'
+            "      <p:extLst>\n"
+            '        <p:ext uri="{DAA4B4D4-6D71-4841-9C94-3DE7FCFB9230}">\n'
+            '          <p14:media xmlns:p14="http://schemas.microsoft.com/of'
+            'fice/powerpoint/2010/main" r:embed="%%s"/>\n'
+            "        </p:ext>\n"
+            "      </p:extLst>\n"
+            "    </p:nvPr>\n"
+            "  </p:nvPicPr>\n"
+            "  <p:blipFill>\n"
+            '    <a:blip r:embed="%%s"/>\n'
+            "    <a:stretch>\n"
+            "      <a:fillRect/>\n"
+            "    </a:stretch>\n"
+            "  </p:blipFill>\n"
+            "  <p:spPr>\n"
+            "    <a:xfrm>\n"
+            '      <a:off x="%%d" y="%%d"/>\n'
+            '      <a:ext cx="%%d" cy="%%d"/>\n'
+            "    </a:xfrm>\n"
+            '    <a:prstGeom prst="rect">\n'
+            "      <a:avLst/>\n"
+            "    </a:prstGeom>\n"
+            "  </p:spPr>\n"
+            "</p:pic>" % nsdecls("a", "p", "r")
+        )
+
+    def _srcRect_x(self, attr_name):
+        """
+        Value of `p:blipFill/a:srcRect/@{attr_name}` or 0.0 if not present.
+        """
+        srcRect = self.blipFill.srcRect
+        if srcRect is None:
+            return 0.0
+        return getattr(srcRect, attr_name)
+
+
+class CT_PictureNonVisual(BaseOxmlElement):
+    """
+    ``<p:nvPicPr>`` element, containing non-visual properties for a picture
+    shape.
+    """
+
+    cNvPr = OneAndOnlyOne("p:cNvPr")
+    nvPr = OneAndOnlyOne("p:nvPr")