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fix: charts encoding (#2848)

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Yeuoly 2024-03-15 14:02:52 +08:00 committed by GitHub
parent 8a4015722d
commit cef16862da
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33
api/core/tools/provider/builtin/chart/chart.py
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@ -1,4 +1,6 @@
import matplotlib.pyplot as plt
from fontTools.ttLib import TTFont
from matplotlib.font_manager import findSystemFonts
from core.tools.errors import ToolProviderCredentialValidationError
from core.tools.provider.builtin.chart.tools.line import LinearChartTool
@ -6,6 +8,37 @@ from core.tools.provider.builtin_tool_provider import BuiltinToolProviderControl
# use a business theme
plt.style.use('seaborn-v0_8-darkgrid')
plt.rcParams['axes.unicode_minus'] = False
def init_fonts():
fonts = findSystemFonts()
popular_unicode_fonts = [
'Arial Unicode MS', 'DejaVu Sans', 'DejaVu Sans Mono', 'DejaVu Serif', 'FreeMono', 'FreeSans', 'FreeSerif',
'Liberation Mono', 'Liberation Sans', 'Liberation Serif', 'Noto Mono', 'Noto Sans', 'Noto Serif', 'Open Sans',
'Roboto', 'Source Code Pro', 'Source Sans Pro', 'Source Serif Pro', 'Ubuntu', 'Ubuntu Mono'
]
supported_fonts = []
for font_path in fonts:
try:
font = TTFont(font_path)
# get family name
family_name = font['name'].getName(1, 3, 1).toUnicode()
if family_name in popular_unicode_fonts:
supported_fonts.append(family_name)
except:
pass
plt.rcParams['font.family'] = 'sans-serif'
# sort by order of popular_unicode_fonts
for font in popular_unicode_fonts:
if font in supported_fonts:
plt.rcParams['font.sans-serif'] = font
break
init_fonts()
class ChartProvider(BuiltinToolProviderController):
def _validate_credentials(self, credentials: dict) -> None: