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Use optipng to optimise document thumbnails

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This commit is contained in:
Daniel Quinn
2018-10-07 14:56:38 +01:00
parent 2a3f766b93
commit 750ab5bf85
9 changed files with 85 additions and 22 deletions
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43
src/paperless_text/parsers.py
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@@ -32,7 +32,7 @@ class TextDocumentParser(DocumentParser):
text_color = "black" # text color
psize = [500, 647] # icon size
n_lines = 50 # number of lines to show
output_file = os.path.join(self.tempdir, "convert-txt.png")
out_path = os.path.join(self.tempdir, "convert.png")
temp_bg = os.path.join(self.tempdir, "bg.png")
temp_txlayer = os.path.join(self.tempdir, "tx.png")
@@ -43,9 +43,13 @@ class TextDocumentParser(DocumentParser):
work_size = ",".join([str(n - 1) for n in psize])
r = str(round(psize[0] / 10))
rounded = ",".join([r, r])
run_command(self.CONVERT, "-size ", picsize, ' xc:none -draw ',
'"fill ', bg_color, ' roundrectangle 0,0,',
work_size, ",", rounded, '" ', temp_bg)
run_command(
self.CONVERT,
"-size ", picsize,
' xc:none -draw ',
'"fill ', bg_color, ' roundrectangle 0,0,', work_size, ",", rounded, '" ', # NOQA: E501
temp_bg
)
def read_text():
with open(self.document_path, 'r') as src:
@@ -54,22 +58,29 @@ class TextDocumentParser(DocumentParser):
return text.replace('"', "'")
def create_txlayer():
run_command(self.CONVERT,
"-background none",
"-fill",
text_color,
"-pointsize", "12",
"-border 4 -bordercolor none",
"-size ", txsize,
' caption:"', read_text(), '" ',
temp_txlayer)
run_command(
self.CONVERT,
"-background none",
"-fill",
text_color,
"-pointsize", "12",
"-border 4 -bordercolor none",
"-size ", txsize,
' caption:"', read_text(), '" ',
temp_txlayer
)
create_txlayer()
create_bg()
run_command(self.CONVERT, temp_bg, temp_txlayer,
"-background None -layers merge ", output_file)
run_command(
self.CONVERT,
temp_bg,
temp_txlayer,
"-background None -layers merge ",
out_path
)
return output_file
return out_path
def get_text(self):