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Fix wrong Chinese characters being displayed (#1257)

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* Fixed wrong index calculation.

* Fixed font generation, indexing will goes wrong when no extra chars bitmap is present.

* Image width exceeded 16384 will cause trouble in CJK.

* Include libopenui update

Co-authored-by: Peter Feerick <peter.feerick@gmail.com>
This commit is contained in:
richardclli 2021-12-17 07:32:28 +08:00 • committed by GitHub
parent 85bd9d16ea
commit 843d1be868
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 22 additions and 13 deletions
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25
tools/build-font-bitmap.py
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@ -18,6 +18,7 @@ class FontBitmap:
self.background = background
self.font = self.load_font(font_name)
self.extra_bitmap = self.load_extra_bitmap()
self.extra_bitmap_added = False
self.extra_bitmap_width = EXTRA_BITMAP_MAX_WIDTH
if self.extra_bitmap is not None:
self.extra_bitmap_width = self.extra_bitmap.width
@ -80,22 +81,26 @@ class FontBitmap:
width = 0
for c in self.chars:
if c in extra_chars:
if self.extra_bitmap:
if not self.extra_bitmap_added:
# append same width for non-existing characters
for i in range(128 - 32 - len(standard_chars)):
coords.append(width)
# copy extra_bitmap at once
image.paste(self.extra_bitmap, (width, offset_y))
if self.extra_bitmap:
# append width for extra_bitmap symbols
for coord in [14, 14, 12, 12, 13, 13, 13, 13, 13] + [15] * 12:
coords.append(width)
width += coord
# copy extra_bitmap at once
image.paste(self.extra_bitmap, (width, offset_y))
# once inserted, now remove it
self.extra_bitmap = None
# append width for extra_bitmap symbols
for coord in [14, 14, 12, 12, 13, 13, 13, 13, 13] + [15] * 12:
coords.append(width)
width += coord
else:
for coord in range(21):
coords.append(width)
# once inserted, disable insert again
self.extra_bitmap_added = True
# skip
continue