img: add _SofMarker.px_width and .px_height

Steve Canny · Steve Canny · commit eb125c87eada · 2014-02-27T12:08:35.000-08:00
diff --git a/docx/image/jpeg.py b/docx/image/jpeg.py
@@ -333,3 +333,17 @@ def from_stream(cls, stream, marker_code, offset):
         px_height = stream.read_short(offset, 3)
         px_width = stream.read_short(offset, 5)
         return cls(marker_code, offset, segment_length, px_width, px_height)
+
+    @property
+    def px_height(self):
+        """
+        Image height in pixels
+        """
+        return self._px_height
+
+    @property
+    def px_width(self):
+        """
+        Image width in pixels
+        """
+        return self._px_width
diff --git a/tests/image/test_jpeg.py b/tests/image/test_jpeg.py
@@ -260,6 +260,11 @@ def it_can_construct_from_a_stream_and_offset(self, from_stream_fixture):
         )
         assert isinstance(sof_marker, _SofMarker)
 
+    def it_knows_the_image_width_and_height(self):
+        sof = _SofMarker(None, None, None, 42, 24)
+        assert sof.px_width == 42
+        assert sof.px_height == 24
+
     # fixtures -------------------------------------------------------
 
     @pytest.fixture
