def add_map(self, map_image, is_data_entry=True, has_mini_form=False):
y = self.origin_y
map_width, map_height = map_image.size
if is_data_entry:
y = y + self.qr_size + self.gutter_size
if has_mini_form:
y = y + Units.pixel_to_point(300)
self.canvas.drawInlineImage(
map_image, self.origin_x, y,
Units.pixel_to_point(map_width), Units.pixel_to_point(map_height))
def add_form(self, num_rows, form, is_mini_form=False):
cols = form.get_fields(print_only=True)
field_aliases, field_widths = ['ID'], [5]
field_aliases.extend([c.col_alias for c in cols])
field_widths.extend([c.display_width for c in cols])
field_widths = [n/100.0*self.inner_width for n in field_widths] #normalize
x, y = self.origin_x, self.origin_y + self.qr_size
width = self.inner_width
height = self.inner_height - self.qr_size - 35
if is_mini_form:
height = Units.pixel_to_point(300) #only render a 300-pixel tall form
data, rowheights, header_flowables = [], [39], []
style = ParagraphStyle(name='Helvetica', fontName='Helvetica', fontSize=10)
for a in field_aliases:
header_flowables.append(Paragraph('<b>%s</b>' % a, style))
data.append(header_flowables)
for n in range(0, num_rows):
data.append(['', '', '', ''])
rowheights.append(39)
t=Table(data, field_widths, rowheights)
GRID_STYLE = TableStyle([
('GRID', (0,0), (-1,-1), 0.25, colors.black),
('FONT', (0,0), (-1,-1), 'HandSean'),
('BOX',(0,0),(-1,-1),2,colors.black)
])
t.setStyle(GRID_STYLE)
frame = Frame(x, y, width, height, showBoundary=0, leftPadding=0,
bottomPadding=0, rightPadding=0, topPadding=0)
frame.addFromList([t], self.canvas)
def get_basemap_and_extents(self, map_type, zoom, center, width, height):
import os, urllib, StringIO, Image
#units.Units.add_pixels_to_latlng(center_lat, center_lng, zoom, 300, 300)
map_url = None
if map_type.overlay_source.name == 'cloudmade':
styleid = map_type.provider_id
api_key = settings.CLOUDMADE_KEY
map_url = 'http://staticmaps.cloudmade.com/' + api_key + \
'/staticmap?styleid=' + styleid + '&zoom=' + str(zoom) + \
'¢er=' + str(center.y) + ',' + str(center.x) + \
'&size=' + str(width) + 'x' + str(height)
#if google is the map provider:
else:
scale_factor = 1
if not settings.IS_GOOGLE_REGISTERED_NONPROFIT:
zoom, width, height = zoom-1, int(width/2), int(height/2)
scale_factor = 2
map_url = map_type.wms_url + '&zoom=' + str(zoom) + '¢er=' + \
str(center.y) + ',' + str(center.x) + '&size=' + str(width) + \
'x' + str(height) + '&scale=' + str(scale_factor)
#calculate extents (returns geos Point):
#(0,0) in pacific northwest; x = lat, y = lng
northeast = Units.add_pixels_to_latlng(center.clone(), zoom, int(width/2), -1*int(height/2))
southwest = Units.add_pixels_to_latlng(center.clone(), zoom, -1*int(width/2), int(height/2))
try:
file = urllib.urlopen(map_url)
map_image = StringIO.StringIO(file.read()) # constructs a StringIO holding the image
map_image = Image.open(map_image).convert('RGB')
except IOError:
error_image_url = 'https://chart.googleapis.com/chart?chst=d_fnote_title&chld=sticky_y|1|FF0000|l|Map%20Service%20Unavailable|'
file = urllib.urlopen(error_image_url)
map_image = StringIO.StringIO(file.read()) # constructs a StringIO holding the image
map_image = Image.open(map_image).convert('RGB')
return {
'map_image': map_image,
'northeast': northeast,
'southwest': southwest
}
def add_footer(self, qr_image, uuID, instructions):
# output QR-code:
self.qr_size = Units.pixel_to_point(qr_image.size[0])
x = self.origin_x + self.inner_width - self.qr_size #align right
self.canvas.drawInlineImage(qr_image, x, self.origin_y, self.qr_size,
self.qr_size)
# output Print ID:
items = []
style = ParagraphStyle(name='Helvetica', fontName='Helvetica', fontSize=10)
items.append(Paragraph('Print ID: ' + uuID, style))
frame = Frame(x, self.origin_y-self.qr_size, self.inner_width-self.qr_size,
self.qr_size, showBoundary=0, leftPadding=0, bottomPadding=0,
rightPadding=0, topPadding=0)
frame.addFromList(items, self.canvas)
# output default instructions:
link_text = "When you're done drawing on the map, scan or photograph it and \
submit it to our website: http://localground.org/upload, or \
email it to [email protected]."
items = []
style = ParagraphStyle(
name='Helvetica', fontName='Helvetica', fontSize=8,
backColor=colors.HexColor(0xEEEEEE), borderColor=colors.HexColor(0xEEEEEE),
leftIndent=0, rightIndent=0, spaceBefore=5, spaceAfter=5, borderWidth=5)
items.append(Paragraph(link_text, style))
padding_x, padding_y = -4, 12
width, height = self.inner_width - self.qr_size, self.qr_size
frame = Frame(self.origin_x+padding_x, self.origin_y+3, width, height, showBoundary=0)
frame.addFromList(items, self.canvas)
# output custom instructions:
items = []
style = ParagraphStyle(name='Helvetica', fontName='Helvetica', fontSize=10)
items.append(Paragraph(instructions, style))
frame = Frame(self.origin_x+padding_x-2, self.origin_y-padding_y, width,
height-15, showBoundary=0)
frame.addFromList(items, self.canvas)
