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Added getsize_multiline support for ImageFont

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tianyu 2018-04-24 22:15:16 +08:00
parent 0b65d0791e
commit b77e89b286
1 changed files with 14 additions and 0 deletions
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14
src/PIL/ImageFont.py
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@ -147,6 +147,10 @@ class FreeTypeFont(object):
self.font = core.getfont(
"", size, index, encoding, self.font_bytes, layout_engine)
def _multiline_split(self, text):
split_character = "\n" if isinstance(text, str) else b"\n"
return text.split(split_character)
def getname(self):
return self.font.family, self.font.style
@ -157,6 +161,16 @@ class FreeTypeFont(object):
size, offset = self.font.getsize(text, direction, features)
return (size[0] + offset[0], size[1] + offset[1])
def getsize_multiline(self, text, direction=None, spacing=4, features=None):
max_width = 0
lines = self._multiline_split(text)
line_spacing = self.getsize('A')[1] + spacing
for line in lines:
line_width, line_height = self.getsize(line, direction, features)
max_width = max(max_width, line_width)
return max_width, len(lines)*line_spacing - spacing
def getoffset(self, text):
return self.font.getsize(text)[1]