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Draw RTL text with reversed matrix instead of reversing characters

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This commit is contained in:
James R. Barlow
2023-12-24 01:34:03 -08:00
parent fd593eb5e9
commit b71d16dd96
1 changed files with 10 additions and 5 deletions
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src/ocrmypdf/hocrtransform/_hocr.py
+10 -5
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@@ -370,12 +370,12 @@ class HocrTransform:
if text_direction == TextDirection.RTL:
log.info("RTL: %s", elemtxt)
if font_width > 0:
text.text_transform(Matrix(1, 0, 0, -1, box.llx, 0))
text.horiz_scale(100 * box.width / font_width)
if text_direction == TextDirection.LTR:
text.show(self._font.text_encode(elemtxt))
text.text_transform(Matrix(1, 0, 0, -1, box.llx, 0))
elif text_direction == TextDirection.RTL:
text.show(self._font.text_encode(elemtxt[::-1]))
text.text_transform(Matrix(-1, 0, 0, -1, box.llx + box.width, 0))
text.horiz_scale(100 * box.width / font_width)
text.show(self._font.text_encode(elemtxt))
# Get coordinates of the next word (if there is one)
hocr_next_box = (
@@ -395,9 +395,14 @@ class HocrTransform:
elif text_direction == TextDirection.RTL:
space_box = Rectangle(next_box.urx, box.lly, box.llx, next_box.ury)
self._debug_draw_space_bbox(canvas, space_box)
text.text_transform(Matrix(1, 0, 0, -1, space_box.llx, 0))
space_width = self._font.text_width(' ', fontsize)
if space_width > 0:
if text_direction == TextDirection.LTR:
text.text_transform(Matrix(1, 0, 0, -1, space_box.llx, 0))
elif text_direction == TextDirection.RTL:
text.text_transform(
Matrix(-1, 0, 0, -1, space_box.llx + space_box.width, 0)
)
text.horiz_scale(100 * space_box.width / space_width)
text.show(self._font.text_encode(' '))