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import os, sys, io, base64
from docutils import nodes
from sphinx.directives.code import CodeBlock
def visit_pil(self, node):
pass
def depart_pil(self, node):
pass
class PILNode(nodes.Structural, nodes.Element):
pass
class PILDirective(CodeBlock):
has_content = True
def run(self):
code_node = CodeBlock.run(self)
nodes.image()
from PIL import Image
lib_path = os.path.abspath('..')
working_path = os.path.dirname(os.path.realpath(__file__))
static_path = os.path.join(working_path, '..', '_static')
sys.path.append(lib_path)
os.chdir(working_path)
node = PILNode()
g = globals()
l = locals()
for line in self.content:
result = exec(line, g, l)
buffer = io.BytesIO()
new_img = l.get('new_img')
new_img.save(buffer, format='PNG')
image_node = nodes.image()
image_node['alt'] = 'New Image'
image_node['uri'] = 'data:image/png;base64,' + base64.b64encode(buffer.getvalue()).decode()
node += code_node
node += image_node
return [node]
def setup(app):
app.add_node(PILNode, html=(visit_pil, depart_pil))
app.add_directive('pil-block', PILDirective)
return {
'version': '0.1',
'parallel_read_safe': True,
'parallel_write_safe': True,
}
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