def vector(self, e):
scale = float(e.get('scale', '1.0'))
width = toLength(e.get('width'))
height = toLength(e.get('height'))
path = e.get('src')
search = e.get('search', None)
replace = e.get('replace', None)
fh = open(self.get_from_url(path), 'rb')
data = fh.read()
fh.close()
if search is not None:
data = data.replace(search, replace)
svg = xml.dom.minidom.parseString(data).documentElement
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
svg_obj = svgRenderer.finish()
svg_obj.scale(scale, scale)
svg_obj.asDrawing(width, height)
yield svg_obj
def svg_to_pdf(svg_data):
svgr = SvgRenderer()
doc = minidom.parseString(svg_data.encode("utf-8"))
svgr.render(doc.documentElement)
drawing = svgr.finish()
pdf = renderPDF.drawToString(drawing)
return pdf
def svg_to_pdf(svg_data):
svgr = SvgRenderer()
doc = minidom.parseString(svg_data.encode("utf-8"))
svgr.render(doc.documentElement)
drawing = svgr.finish()
pdf = renderPDF.drawToString(drawing)
return pdf
def vector(self, e):
scale = float(e.get('scale', '1.0'))
width = toLength(e.get('width'))
height = toLength(e.get('height'))
path = e.get('src')
search = e.get('search', None)
replace = e.get('replace', None)
fh = open(self.media_root + path, 'rb')
data = fh.read()
fh.close()
if search is not None:
data = data.replace(search, replace)
import xml.dom.minidom
svg = xml.dom.minidom.parseString(data).documentElement
from svglib.svglib import SvgRenderer
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
svg_obj = svgRenderer.finish()
svg_obj.scale(scale, scale)
svg_obj.asDrawing(width, height)
yield svg_obj
def post(self, request, *args, **kwargs):
data = request.POST.get('svgdata', '')
doc = xml.dom.minidom.parseString(data.encode( "utf-8" ))
svg = doc.documentElement
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
drawing = svgRenderer.finish()
pdf = renderPDF.drawToString(drawing)
response = HttpResponse(content_type='application/pdf')
response["Content-Disposition"]= "attachment; filename=chart.pdf"
response.write(pdf)
return response
def export_svg(request):
# Получаем данные с клиентской части использую переменные POST
svg = request.POST.get("svg")
doc = xml.dom.minidom.parseString(svg.encode("utf-8"))
svg = doc.documentElement
# Создаём новый экземпляр класса SvgRenderer
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
drawing = svgRenderer.finish()
# Вместо записы исходного файла на диск мы позволяем пользователю сразу скачать его
pdf = renderPDF.drawToString(drawing)
response = HttpResponse(mimetype='application/pdf')
response.write(pdf)
# Реализуем возможность просмотра полученного pda файла прямо в браузерном плагине
response["Content-Disposition"] = "attachment; filename=converted.pdf"
return response
def export_svg(request):
# Получаем данные с клиентской части использую переменные POST
svg = request.POST.get("svg")
doc = xml.dom.minidom.parseString(svg.encode( "utf-8" ))
svg = doc.documentElement
# Создаём новый экземпляр класса SvgRenderer
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
drawing = svgRenderer.finish()
# Вместо записы исходного файла на диск мы позволяем пользователю сразу скачать его
pdf = renderPDF.drawToString(drawing)
response = HttpResponse(mimetype='application/pdf')
response.write(pdf)
# Реализуем возможность просмотра полученного pda файла прямо в браузерном плагине
response["Content-Disposition"]= "attachment; filename=converted.pdf"
return response
def export_svg(request):
svg = request.POST.get("svg_xml")
title = request.POST.get("title")
format = request.POST.get("format")
if format == "svg":
# Set mimetype to octet-stream to assure download from browser
response = HttpResponse(svg, mimetype="application/octet-stream")
elif format == "pdf":
doc = xml.dom.minidom.parseString(svg.encode( "utf-8" ))
svg = doc.documentElement
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
drawing = svgRenderer.finish()
pdf = renderPDF.drawToString(drawing)
response = HttpResponse(mimetype='application/pdf')
response.write(pdf)
# Need to change with actual title
response["Content-Disposition"]= "attachment; filename=%s.%s" % (title, format)
return response
def export_save(request):
svg = request.POST.get("svg_xml")
title = request.POST.get("title")
format = request.POST.get("format")
country = request.POST.get("country")
year = request.POST.get("year")
viz = request.POST.get("viz")
#
import os
directory = "exports/%s" % viz
if not os.path.exists(directory):
os.makedirs(directory)
directory = "exports/%s/%s" % (viz, country)
if not os.path.exists(directory):
os.makedirs(directory)
file_name = '/%s.%s' % (title, format)
file_name = directory + file_name
if format == "svg":
# Set mimetype to octet-stream to assure download from browser
svg = svg.encode( "utf-8" )
f = open(file_name, 'w')
f.write(svg)
elif format == "pdf":
doc = xml.dom.minidom.parseString(svg.encode( "utf-8" ))
svg = doc.documentElement
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
drawing = svgRenderer.finish()
renderPDF.drawToFile(drawing, file_name)
#
# pdf = renderPDF.drawToString(drawing)
# # response = HttpResponse(mimetype='application/pdf')
# response.write(pdf)
# Need to change with actual title
return HttpResponse(title)
def parse_parts(self, buffer):
# prepare ReportLab
self.styles = getSampleStyleSheet()
self.style_stack.append(self.styles['Normal'])
if self.out_buffer is None:
self.out_buffer = StringIO()
self.parts = []
# prepare for parsing
i = 0
buffer_len = len(buffer)
# Possible modes: 0 = normal, 1 = table row, 2 = insert object
mode = 0
new_line = True
new_para = True
cue = 0
content = ''
raw_table_data = ''
self.reset_table()
obj = None
style_stack = self.style_stack
paragraphs = split_ignore(buffer, '\n\n', '[[[block', ']]]')
for p in paragraphs:
lines = p.split('\n')
content = ''
for line in lines:
c = line[:1]
if c == '#':
debug_print('[comment]')
elif c == '$':
self.parse_paragraph_style(line[1:])
elif c == '~':
debug_print('[document element %s]' % line[1])
elem = line[1]
endpos = line.find(']', 2)
if elem == 'D':
self.handle_document_properties(line[3:endpos], line[endpos+1:])
elif elem == 'T':
if line[2] == '$':
# table style
raw_style = line[3:]
style = self.parse_table_style(raw_style)
self.table_styles.append(style)
else:
self.table_cols = list(float(n) * self.unit for n in line[3:endpos].split('|'))
align = line[endpos+1:endpos+2]
if align == '<':
self.table_align = 'LEFT'
elif align == '>':
self.table_align = 'RIGHT'
elif elem == 'B':
self.append_to_parts(PageBreak())
elif elem == 'S':
self.append_to_parts(Spacer(1, toLength(line[2:])))
elif elem == 'V':
svg_info_raw = line[3:endpos]
svg_info = svg_info_raw.split(';')[:7]
if len(svg_info) == 1:
mode = 2
obj = self.svg_dict[svg_info[0]]
else:
if len(svg_info) == 7:
svg_name, svg_scale, svg_w, svg_h, svg_path, svg_find, svg_replace = svg_info
else:
svg_name, svg_scale, svg_w, svg_h, svg_path = svg_info
svg_file = open(find(svg_path), 'rb')
svg_data = svg_file.read()
svg_file.close()
if len(svg_info) == 7:
svg_data = svg_data.replace(svg_find, svg_replace)
svg = xml.dom.minidom.parseString(svg_data).documentElement
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
svg_obj = svgRenderer.finish()
#svg_obj = svg2rlg(settings.MEDIA_ROOT + svg_path)
svg_obj.scale(float(svg_scale), float(svg_scale))
svg_obj.asDrawing(float(svg_w) * self.unit, float(svg_h) * self.unit)
self.svg_dict[svg_name] = svg_obj
elif elem == 'I':
img_info_raw = line[3:endpos]
img_info = img_info_raw.split(';')[:4]
if len(img_info) == 1:
mode = 2
obj = self.img_dict[img_info[0]]
else:
img_name, img_w, img_h, img_path = img_info
img_obj = Image(find(img_path), width=self.unit*float(img_w), height=self.unit*float(img_h))
align = line[endpos+1:endpos+2]
if align == '<':
img_obj.hAlign = 'LEFT'
elif align == '>':
img_obj.hAlign = 'RIGHT'
self.img_dict[img_name] = img_obj
elif elem == 'C':
barcode_info_raw = line[3:endpos]
barcode_info = barcode_info_raw.split(';')[:6]
if len(barcode_info) == 1:
mode = 2
obj = self.img_dict[barcode_info[0]]
else:
barcode_name, barcode_type, barcode_scale, barcode_w, barcode_h, barcode_data = barcode_info
barcode_obj = Barcode(library=find('common/pdf_img/barcode.ps'),
width=self.unit * float(barcode_w),
height=self.unit * float(barcode_h),
data=barcode_data,
scale=float(barcode_scale),
type=barcode_type)
align = line[endpos+1:endpos+2]
if align == '<':
barcode_obj.hAlign = 'LEFT'
elif align == '>':
barcode_obj.hAlign = 'RIGHT'
self.img_dict[barcode_name] = barcode_obj
elif elem == 'F':
font_info_raw = line[3:endpos]
font_info = font_info_raw.split(';')[:2]
self.import_pdf_font(font_info[1], font_info[0])
elif elem == 'P':
if '[' in line:
self.parts_buffer = line[3:endpos]
self.parts_buffer_dict[self.parts_buffer] = []
else:
self.parts_buffer = None
elif c == '[':
mode = 1
raw_table_data += line + '\n'
elif c == '\n':
pass
else:
if mode == 0:
content += line + '\n'
elif mode == 1:
raw_table_data += line + '\n'
if mode == 0:
if content != '':
self.append_to_parts(Paragraph(content, self.style_stack[-1] if len(self.style_stack) > 0 else self.styles['Normal']))
content = ''
if mode == 1:
td = raw_table_data
td_len = len(td)
i = 0
while i < td_len:
c = td[i]
c_1 = td[i-1:i]
if c == '[' and c_1 != '\\':
cue = i + 1
if (c == '|' or c == ']') and c_1 != '\\':
cell_content = td[cue:i]
pop_after_cell = False
if cell_content[:1] == '$':
if ' ' in cell_content:
style, cell_content = cell_content.split(None, 1)
style = style[1:]
else:
style = ''
cell_content = cell_content[1:]
self.parse_paragraph_style(style)
if cell_content[-1:] == '$':
cell_content = cell_content[:-1]
pop_after_cell = True
if cell_content[:2] == '~V':
svg_name = cell_content[2:]
self.table_row.append(self.svg_dict[svg_name])
elif cell_content[:2] == '~I':
img_name = cell_content[2:]
self.table_row.append(self.img_dict[img_name])
elif cell_content[:2] == '~P':
self.table_row.append(self.parts_buffer_dict[cell_content[2:]])
else:
self.table_row.append(Paragraph(cell_content, self.style_stack[-1] if len(self.style_stack) > 0 else self.styles['Normal']))
if pop_after_cell:
self.parse_paragraph_style('')
cue = i + 1
if c == ']':
self.table_data.append(self.table_row)
self.table_row = []
i += 1
if len(self.table_data) > 0:
self.append_to_parts(Table(self.table_data, self.table_cols, hAlign=self.table_align, style=self.table_styles))
self.reset_table()
raw_table_data = ''
if mode == 2:
if obj is not None:
self.append_to_parts(obj)
obj = None
mode = 0
return self.parts
def parse_parts(self, buffer):
# prepare ReportLab
self.styles = getSampleStyleSheet()
self.style_stack.append(self.styles['Normal'])
if self.out_buffer is None:
self.out_buffer = StringIO()
self.parts = []
# prepare for parsing
i = 0
buffer_len = len(buffer)
# Possible modes: 0 = normal, 1 = table row, 2 = insert object
mode = 0
new_line = True
new_para = True
cue = 0
content = ''
raw_table_data = ''
self.reset_table()
obj = None
style_stack = self.style_stack
paragraphs = split_ignore(buffer, '\n\n', '[[[block', ']]]')
for p in paragraphs:
lines = p.split('\n')
content = ''
for line in lines:
c = line[:1]
if c == '#':
debug_print('[comment]')
elif c == '$':
self.parse_paragraph_style(line[1:])
elif c == '~':
debug_print('[document element %s]' % line[1])
elem = line[1]
endpos = line.find(']', 2)
if elem == 'D':
self.handle_document_properties(
line[3:endpos], line[endpos + 1:])
elif elem == 'T':
if line[2] == '$':
# table style
raw_style = line[3:]
style = self.parse_table_style(raw_style)
self.table_styles.append(style)
else:
self.table_cols = list(
float(n) * self.unit
for n in line[3:endpos].split('|'))
align = line[endpos + 1:endpos + 2]
if align == '<':
self.table_align = 'LEFT'
elif align == '>':
self.table_align = 'RIGHT'
elif elem == 'B':
self.append_to_parts(PageBreak())
elif elem == 'S':
self.append_to_parts(Spacer(1, toLength(line[2:])))
elif elem == 'V':
svg_info_raw = line[3:endpos]
svg_info = svg_info_raw.split(';')[:7]
if len(svg_info) == 1:
mode = 2
obj = self.svg_dict[svg_info[0]]
else:
if len(svg_info) == 7:
svg_name, svg_scale, svg_w, svg_h, svg_path, svg_find, svg_replace = svg_info
else:
svg_name, svg_scale, svg_w, svg_h, svg_path = svg_info
svg_file = open(find(svg_path), 'rb')
svg_data = svg_file.read()
svg_file.close()
if len(svg_info) == 7:
svg_data = svg_data.replace(
svg_find, svg_replace)
svg = xml.dom.minidom.parseString(
svg_data).documentElement
svgRenderer = SvgRenderer()
svgRenderer.render(svg)
svg_obj = svgRenderer.finish()
# svg_obj = svg2rlg(settings.MEDIA_ROOT + svg_path)
svg_obj.scale(float(svg_scale), float(svg_scale))
svg_obj.asDrawing(
float(svg_w) * self.unit,
float(svg_h) * self.unit)
self.svg_dict[svg_name] = svg_obj
elif elem == 'I':
img_info_raw = line[3:endpos]
img_info = img_info_raw.split(';')[:4]
if len(img_info) == 1:
mode = 2
obj = self.img_dict[img_info[0]]
else:
img_name, img_w, img_h, img_path = img_info
img_obj = Image(find(img_path),
width=self.unit * float(img_w),
height=self.unit * float(img_h))
align = line[endpos + 1:endpos + 2]
if align == '<':
img_obj.hAlign = 'LEFT'
elif align == '>':
img_obj.hAlign = 'RIGHT'
self.img_dict[img_name] = img_obj
elif elem == 'C':
barcode_info_raw = line[3:endpos]
barcode_info = barcode_info_raw.split(';')[:6]
if len(barcode_info) == 1:
mode = 2
obj = self.img_dict[barcode_info[0]]
else:
barcode_name, barcode_type, barcode_scale, barcode_w, barcode_h, barcode_data = barcode_info
barcode_obj = Barcode(
library=find('common/pdf_img/barcode.ps'),
width=self.unit * float(barcode_w),
height=self.unit * float(barcode_h),
data=barcode_data,
scale=float(barcode_scale),
type=barcode_type)
align = line[endpos + 1:endpos + 2]
if align == '<':
barcode_obj.hAlign = 'LEFT'
elif align == '>':
barcode_obj.hAlign = 'RIGHT'
self.img_dict[barcode_name] = barcode_obj
elif elem == 'F':
font_info_raw = line[3:endpos]
font_info = font_info_raw.split(';')[:2]
self.import_pdf_font(font_info[1], font_info[0])
elif elem == 'P':
if '[' in line:
self.parts_buffer = line[3:endpos]
self.parts_buffer_dict[self.parts_buffer] = []
else:
self.parts_buffer = None
elif elem == 'E':
args = line[2:].split(';')
name, width, height, value = args
self.append_to_parts(
TextField(name, int(width), int(height), value))
elif c == '[':
mode = 1
raw_table_data += line + '\n'
elif c == '\n':
pass
else:
if mode == 0:
content += line + '\n'
elif mode == 1:
raw_table_data += line + '\n'
if mode == 0:
if content != '':
self.append_to_parts(
Paragraph(
content,
self.style_stack[-1] if len(self.style_stack) > 0
else self.styles['Normal']))
content = ''
if mode == 1:
td = raw_table_data
td_len = len(td)
i = 0
while i < td_len:
c = td[i]
c_1 = td[i - 1:i]
if c == '[' and c_1 != '\\':
cue = i + 1
if (c == '|' or c == ']') and c_1 != '\\':
cell_content = td[cue:i]
pop_after_cell = False
if cell_content[:1] == '$':
if ' ' in cell_content:
style, cell_content = cell_content.split(
None, 1)
style = style[1:]
else:
style = ''
cell_content = cell_content[1:]
self.parse_paragraph_style(style)
if cell_content[-1:] == '$':
cell_content = cell_content[:-1]
pop_after_cell = True
if cell_content[:2] == '~V':
svg_name = cell_content[2:]
self.table_row.append(self.svg_dict[svg_name])
elif cell_content[:2] == '~I':
img_name = cell_content[2:]
self.table_row.append(self.img_dict[img_name])
elif cell_content[:2] == '~P':
self.table_row.append(
self.parts_buffer_dict[cell_content[2:]])
else:
self.table_row.append(
Paragraph(
cell_content, self.style_stack[-1]
if len(self.style_stack) > 0 else
self.styles['Normal']))
if pop_after_cell:
self.parse_paragraph_style('')
cue = i + 1
if c == ']':
self.table_data.append(self.table_row)
self.table_row = []
i += 1
if len(self.table_data) > 0:
self.append_to_parts(
Table(self.table_data,
self.table_cols,
hAlign=self.table_align,
style=self.table_styles))
self.reset_table()
raw_table_data = ''
if mode == 2:
if obj is not None:
self.append_to_parts(obj)
obj = None
mode = 0
return self.parts