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fix pdf generation

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This commit is contained in:
Alex Turchyn
2023-06-18 16:30:35 +03:00
parent 662d052904
commit 02fee9f885
9 changed files with 99 additions and 68 deletions
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lib/pdf_icons.rb
+3
View File
@@ -3,6 +3,9 @@
module PdfIcons
PATH = Rails.root.join('lib/pdf_icons')
WIDTH = 240
HEIGHT = 240
module_function
def check_io
lib/submissions/generate_result_attachments.rb
+76 -46
View File
@@ -2,13 +2,14 @@
module Submissions
module GenerateResultAttachments
FONT_SIZE = 12
FONT_SIZE = 11
FONT_NAME = 'Helvetica'
module_function
# rubocop:disable Metrics
def call(submitter)
layouter = HexaPDF::Layout::TextLayouter.new(valign: :center)
template = submitter.submission.template
cert = submitter.submission.template.account.encrypted_configs
@@ -36,61 +37,91 @@ module Submissions
attachment = submitter.attachments.find { |a| a.uuid == value }
io = StringIO.new(attachment.download)
Vips::Image.new_from_buffer(io.read, '')
scale = [(area['w'] * width) / attachment.metadata['width'],
(area['h'] * height) / attachment.metadata['height']].min
canvas.image(io, at: [area['x'] * width,
height - (area['y'] * height) -
(((attachment.metadata['height'] * scale) + (area['h'] * height)) / 2)],
width: attachment.metadata['width'] * scale,
height: attachment.metadata['height'] * scale)
canvas.image(
io,
at: [
(area['x'] * width) + (area['w'] * width / 2) - ((attachment.metadata['width'] * scale) / 2),
height - (area['y'] * height) - (attachment.metadata['height'] * scale / 2) - (area['h'] * height / 2)
],
width: attachment.metadata['width'] * scale,
height: attachment.metadata['height'] * scale
)
when 'file'
Array.wrap(value).each_with_index do |uuid, index|
page[:Annots] ||= []
items = Array.wrap(value).each_with_object([]) do |uuid, acc|
attachment = submitter.attachments.find { |a| a.uuid == uuid }
canvas.image(PdfIcons.paperclip_io,
at: [area['x'] * width,
height - ((area['y'] * height) + (1.2 * FONT_SIZE) - (FONT_SIZE * index))],
width: FONT_SIZE, height: FONT_SIZE)
acc << HexaPDF::Layout::InlineBox.create(width: FONT_SIZE, height: FONT_SIZE,
margin: [0, 1, -2, 0]) do |cv, box|
cv.image(PdfIcons.paperclip_io, at: [0, 0], width: box.content_width)
end
canvas.font(FONT_NAME, size: FONT_SIZE)
canvas.text(attachment.filename.to_s,
at: [(area['x'] * width) + FONT_SIZE,
height - ((area['y'] * height) + FONT_SIZE - (FONT_SIZE * index))])
page[:Annots] ||= []
page[:Annots] << pdf.add({
Type: :Annot, Subtype: :Link,
Rect: [
area['x'] * width,
height - (area['y'] * height),
(area['x'] * width) + (area['w'] * width),
height - (area['y'] * height) - FONT_SIZE
],
A: { Type: :Action, S: :URI, URI: attachment.url }
})
acc << HexaPDF::Layout::TextFragment.create("#{attachment.filename}\n", font: pdf.fonts.add(FONT_NAME),
font_size: FONT_SIZE)
end
lines = layouter.fit(items, area['w'] * width, height).lines
box_height = lines.sum(&:height)
height_diff = [0, box_height - (area['h'] * height)].max
lines.each_with_index.reduce(0) do |acc, (line, index)|
next acc unless line.items.first.is_a?(HexaPDF::Layout::InlineBox)
attachment_uuid = Array.wrap(value)[acc]
attachment = submitter.attachments.find { |a| a.uuid == attachment_uuid }
next_index =
lines[(index + 1)..].index { |l| l.items.first.is_a?(HexaPDF::Layout::InlineBox) } || (lines.size - 1)
page[:Annots] << pdf.add(
{
Type: :Annot, Subtype: :Link,
Rect: [
area['x'] * width,
height - (area['y'] * height) - lines[...index].sum(&:height) + height_diff,
(area['x'] * width) + (area['w'] * width),
height - (area['y'] * height) - lines[..next_index].sum(&:height) + height_diff
],
A: { Type: :Action, S: :URI, URI: attachment.url }
}
)
acc + 1
end
layouter.fit(items, area['w'] * width, height_diff.positive? ? box_height : area['h'] * height)
.draw(canvas, area['x'] * width, height - (area['y'] * height) + height_diff)
when 'checkbox'
Array.wrap(value).each_with_index do |value, index|
canvas.image(PdfIcons.check_io,
at: [area['x'] * width,
height - ((area['y'] * height) + (1.2 * FONT_SIZE) - (FONT_SIZE * index))],
width: FONT_SIZE, height: FONT_SIZE)
next unless value == true
canvas.font(FONT_NAME, size: FONT_SIZE)
canvas.text(value,
at: [(area['x'] * width) + FONT_SIZE,
height - ((area['y'] * height) + FONT_SIZE - (FONT_SIZE * index))])
end
when 'date'
canvas.font(FONT_NAME, size: FONT_SIZE)
canvas.text(I18n.l(Date.parse(value)),
at: [area['x'] * width, height - ((area['y'] * height) + FONT_SIZE)])
scale = [(area['w'] * width) / PdfIcons::WIDTH, (area['h'] * height) / PdfIcons::HEIGHT].min
canvas.image(
PdfIcons.check_io,
at: [
(area['x'] * width) + (area['w'] * width / 2) - (PdfIcons::WIDTH * scale / 2),
height - (area['y'] * height) - (area['h'] * height / 2) - (PdfIcons::HEIGHT * scale / 2)
],
width: PdfIcons::WIDTH * scale,
height: PdfIcons::HEIGHT * scale
)
else
canvas.font(FONT_NAME, size: FONT_SIZE)
canvas.text(value.to_s, at: [area['x'] * width, height - ((area['y'] * height) + FONT_SIZE)])
value = I18n.l(Date.parse(value)) if field['type'] == 'date'
text = HexaPDF::Layout::TextFragment.create(Array.wrap(value).join(', '), font: pdf.fonts.add(FONT_NAME),
font_size: FONT_SIZE)
lines = layouter.fit([text], area['w'] * width, height).lines
box_height = lines.sum(&:height)
height_diff = [0, box_height - (area['h'] * height)].max
layouter.fit([text], area['w'] * width, height_diff.positive? ? box_height : area['h'] * height)
.draw(canvas, area['x'] * width, height - (area['y'] * height) + height_diff)
end
end
end
@@ -103,7 +134,6 @@ module Submissions
pdf = pdfs_index[item['attachment_uuid']]
pdf.sign(io, reason: "Signed by #{submitter.email}",
# doc_mdp_permissions: :no_changes,
certificate: OpenSSL::X509::Certificate.new(cert['cert']),
key: OpenSSL::PKey::RSA.new(cert['key']),
certificate_chain: [OpenSSL::X509::Certificate.new(cert['sub_ca']),