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Created the Fonts Library!!!
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At the moment the fonts library holds only the 14 standard fonts, but
in the future, it might be extended for more fonts and maybe Unicode
support.

My Mission: page numbers and textboxes in different languages.
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Myst authored and Myst committed Sep 8, 2014
1 parent 0b27346 commit 9b646e3
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Showing 20 changed files with 224 additions and 29,426 deletions.
32 changes: 17 additions & 15 deletions lib/combine_pdf.rb
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Expand Up @@ -6,26 +6,28 @@
require "combine_pdf/combine_pdf_operations.rb"
require "combine_pdf/combine_pdf_basic_writer.rb"
require "combine_pdf/combine_pdf_decrypt.rb"
require "combine_pdf/combine_pdf_fonts.rb"
require "combine_pdf/combine_pdf_filter.rb"
require "combine_pdf/combine_pdf_parser.rb"
require "combine_pdf/combine_pdf_pdf.rb"

require "combine_pdf/font_metrics/courier-bold_metrics.rb"
require "combine_pdf/font_metrics/courier-boldoblique_metrics.rb"
require "combine_pdf/font_metrics/courier-oblique_metrics.rb"
require "combine_pdf/font_metrics/courier_metrics.rb"
require "combine_pdf/font_metrics/helvetica-bold_metrics.rb"
require "combine_pdf/font_metrics/helvetica-boldoblique_metrics.rb"
require "combine_pdf/font_metrics/helvetica-oblique_metrics.rb"
require "combine_pdf/font_metrics/helvetica_metrics.rb"
require "combine_pdf/font_metrics/symbol_metrics.rb"
require "combine_pdf/font_metrics/times-bold_metrics.rb"
require "combine_pdf/font_metrics/times-bolditalic_metrics.rb"
require "combine_pdf/font_metrics/times-italic_metrics.rb"
require "combine_pdf/font_metrics/times-roman_metrics.rb"
require "combine_pdf/font_metrics/zapfdingbats_metrics.rb"
# # will be removed one font support and font library is completed.
# require "combine_pdf/font_metrics/courier-bold_metrics.rb"
# require "combine_pdf/font_metrics/courier-boldoblique_metrics.rb"
# require "combine_pdf/font_metrics/courier-oblique_metrics.rb"
# require "combine_pdf/font_metrics/courier_metrics.rb"
# require "combine_pdf/font_metrics/helvetica-bold_metrics.rb"
# require "combine_pdf/font_metrics/helvetica-boldoblique_metrics.rb"
# require "combine_pdf/font_metrics/helvetica-oblique_metrics.rb"
# require "combine_pdf/font_metrics/helvetica_metrics.rb"
# require "combine_pdf/font_metrics/symbol_metrics.rb"
# require "combine_pdf/font_metrics/times-bold_metrics.rb"
# require "combine_pdf/font_metrics/times-bolditalic_metrics.rb"
# require "combine_pdf/font_metrics/times-italic_metrics.rb"
# require "combine_pdf/font_metrics/times-roman_metrics.rb"
# require "combine_pdf/font_metrics/zapfdingbats_metrics.rb"
# require "combine_pdf/font_metrics/metrics_dictionary.rb"

require "combine_pdf/font_metrics/metrics_dictionary.rb"



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46 changes: 27 additions & 19 deletions lib/combine_pdf/combine_pdf_basic_writer.rb
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Expand Up @@ -259,7 +259,29 @@ def textbox(text, properties = {})

self
end

def dimensions_of(text, font_name, size = 1000)
Fonts.get_font(font_name).dimensions_of text, size
end
# this method returns the size for which the text fits the requested metrices
# the size is type Float and is rather exact
# if the text cannot fit such a small place, returns zero (0).
# maximum font size possible is set to 100,000 - which should be big enough for anything
# text:: the text to fit
# font:: the font name. @see font
# length:: the length to fit
# height:: the height to fit (optional - normally length is the issue)
def fit_text(text, font, length, height = 10000000)
size = 100000
size_array = [size]
metrics = Fonts.get_font(font).dimensions_of text, size
if metrics[0] > length
size_array << size * length/metrics[0]
end
if metrics[1] > height
size_array << size * height/metrics[1]
end
size_array.min
end
protected

# accessor (getter) for the :Resources element of the page
Expand Down Expand Up @@ -289,33 +311,19 @@ def contents
# - :Symbol
# - :ZapfDingbats
def set_font(font = :Helvetica)
# refuse any other fonts that arn't basic standard fonts
allow_fonts = [ :"Times-Roman",
:"Times-Bold",
:"Times-Italic",
:"Times-BoldItalic",
:Helvetica,
:"Helvetica-Bold",
:"Helvetica-BoldOblique",
:"Helvetica-Oblique",
:Courier,
:"Courier-Bold",
:"Courier-Oblique",
:"Courier-BoldOblique",
:Symbol,
:ZapfDingbats ]
raise "set_font(font) accepts only one of the 14 standards fonts - wrong font!" unless allow_fonts.include? font
# if the font exists, return it's name
resources[:Font] ||= {}
resources[:Font].each do |k,v|
if v.is_a?(Hash) && v[:Type] == :Font && v[:BaseFont] == font
return k
end
end
# create font object
font_object = { Type: :Font, Subtype: :Type1, BaseFont: font}
# set a secure name for the font
name = (SecureRandom.urlsafe_base64(9)).to_sym
# get font object
font_object = Fonts.get_font(font)
# return false if the font wan't found in the library.
return false unless font_object
# add object to reasource
resources[:Font][name] = font_object
#return name
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174 changes: 174 additions & 0 deletions lib/combine_pdf/combine_pdf_fonts.rb
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11 changes: 6 additions & 5 deletions lib/combine_pdf/combine_pdf_pdf.rb
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Expand Up @@ -278,18 +278,19 @@ def << (obj)
return self #return self object for injection chaining (pdf << page << page << page)
end

# and page numbers to the PDF
# LATIN ONLY - NO UNICODE SUPPORT YET
# add page numbers to the PDF
# options:: a Hash of options setting the behavior and format of the page numbers:
# - :number_format a string representing the format for page number. defaults to ' - %d - '.
# - :number_format a string representing the format for page number. defaults to ' - %s - ' (allows for letter numbering as well, such as "a", "b"...).
# - :number_location an Array containing the location for the page numbers, can be :top, :buttom, :top_left, :top_right, :bottom_left, :bottom_right. defaults to [:top, :buttom].
# - :start_at a Fixnum that sets the number for first page number. defaults to 1.
# - :start_at a Fixnum that sets the number for first page number. also accepts a letter ("a") for letter numbering. defaults to 1.
# - :margin_from_height a number (PDF points) for the top and buttom margins. defaults to 45.
# - :margin_from_side a number (PDF points) for the left and right margins. defaults to 15.
# the options Hash can also take all the options for PDFWriter.textbox.
# defaults to font_name: :Helvetica, font_size: 12 and no box (:border_width => 0, :box_color => nil).
def number_pages(options = {})
opt = {
number_format: ' - %d - ',
number_format: ' - %s - ',
number_location: [:top, :bottom],
start_at: 1,
font_size: 12,
Expand Down Expand Up @@ -351,7 +352,7 @@ def number_pages(options = {})
stamp.textbox text, {x: x, y: y }.merge(opt)
end
page << stamp
page_number += 1
page_number = page_number.succ
end
end

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