Module: OBF::PDF

Defined in:
lib/obf/pdf.rb

Class Method Summary collapse

Class Method Details

.build_page(pdf, obj, options) ⇒ Object 



42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
 
# File 'lib/obf/pdf.rb', line 42

def self.build_page(pdf, obj, options)
  OBF::Utils.as_progress_percent(0, 1.0) do
    doc_width = 11*72 - 72
    doc_height = 8.5*72 - 72
    default_radius = 3
    text_height = 20
  
    # header
    pdf.bounding_box([0, doc_height], :width => doc_width, :height => 100) do
      pdf.line_width = 2
      pdf.font_size 16
      
      pdf.fill_color "eeeeee"
      pdf.stroke_color "888888"
      pdf.fill_and_stroke_rounded_rectangle [0, 100], 100, 100, default_radius
      pdf.fill_color "6D81D1"
      pdf.fill_and_stroke_polygon([5, 50], [35, 85], [35, 70], [95, 70], [95, 30], [35, 30], [35, 15])
      pdf.fill_color "ffffff"
      pdf.text_box "Go Back", :at => [10, 90], :width => 80, :height => 80, :align => :center, :valign => :center, :overflow => :shrink_to_fit
      pdf.fill_color "ffffff"
      pdf.fill_and_stroke_rounded_rectangle [110, 100], (doc_width - 200 - 20), 100, default_radius
      pdf.fill_color "DDDB54"
      pdf.fill_and_stroke do
        pdf.move_to 160, 50
        pdf.line_to 190, 70
        pdf.curve_to [190, 30], :bounds => [[100, 130], [100, -30]]
        pdf.line_to 160, 50
      end
      pdf.fill_color "444444"
      pdf.text_box "Say that sentence out loud for me", :at => [210, 90], :width => (doc_width - 200 - 120), :height => 80, :align => :left, :valign => :center, :overflow => :shrink_to_fit
      pdf.fill_color "eeeeee"
      pdf.fill_and_stroke_rounded_rectangle [(doc_width - 100), 100], 100, 100, default_radius
      pdf.fill_color "aaaaaa"
      pdf.fill_and_stroke_polygon([doc_width - 100 + 5, 50], [doc_width - 100 + 35, 85], [doc_width - 100 + 95, 85], [doc_width - 100 + 95, 15], [doc_width - 100 + 35, 15])
      pdf.fill_color "ffffff"
      pdf.text_box "Erase", :at => [(doc_width - 100 + 10), 90], :width => 80, :height => 80, :align => :center, :valign => :center, :overflow => :shrink_to_fit
    end
  
    # board
    pdf.font_size 12
    padding = 10
    grid_height = doc_height - 100 - text_height - (padding * 2)
    grid_width = doc_width
    if obj['grid'] && obj['grid']['rows'] > 0 && obj['grid']['columns'] > 0
      button_height = (grid_height - (padding * (obj['grid']['rows'] - 1))) / obj['grid']['rows'].to_f
      button_width = (grid_width - (padding * (obj['grid']['columns'] - 1))) / obj['grid']['columns'].to_f
      obj['grid']['order'].each_with_index do |buttons, row|
        buttons.each_with_index do |button_id, col|
          button = obj['buttons'].detect{|b| b['id'] == button_id }
          next unless button
          x = (padding * col) + (col * button_width)
          y = text_height + padding - (padding * row) + grid_height - (row * button_height)
          pdf.bounding_box([x, y], :width => button_width, :height => button_height) do
            fill = "ffffff"
            border = "eeeeee"
            if button['background_color']
              fill = `node lib/tinycolor_convert.js "#{button['background_color']}"`.strip
            end   
            if button['border_color']
              border = `node lib/tinycolor_convert.js "#{button['border_color']}"`.strip
            end         
            pdf.fill_color fill
            pdf.stroke_color border
            pdf.fill_and_stroke_rounded_rectangle [0, button_height], button_width, button_height, default_radius
            pdf.bounding_box([5, button_height - 5], :width => button_width - 10, :height => button_height - text_height - 5) do
              image = obj['images_hash'][button['image_id']]
              image_local_path = image && OBF::Utils.save_image(image, options['zipper'])
              if image_local_path && File.exist?(image_local_path)
                pdf.image image_local_path, :fit => [button_width - 10, button_height - text_height - 5], :position => :center, :vposition => :center
                File.unlink image_local_path
              end
            end
            if options['pages'] && button['load_board']
              page = options['pages'][button['load_board']['id']]
              pdf.fill_color "ffffff"            
              pdf.stroke_color "eeeeee"            
              pdf.fill_and_stroke_rounded_rectangle [button_width - 25, button_height - 5], 20, text_height, 5
              pdf.fill_color "000000"            
              pdf.text_box page, :at => [button_width - 25, button_height - 5], :width => 20, :height => text_height, :align => :center, :valign => :center
            end
            
            pdf.fill_color "000000"
            pdf.text_box (button['label'] || button['vocalization']).to_s, :at => [0, text_height], :width => button_width, :height => text_height, :align => :center, :valign => :center, :overflow => :shrink_to_fit
          end
          index = col + (row * obj['grid']['columns'])
          OBF::Utils.update_current_progress(index.to_f / (obj['grid']['rows'] * obj['grid']['columns']).to_f)
        end
      end
    end
  
    # footer
    pdf.fill_color "aaaaaa"
    pdf.text_box "mycoughdrop.com", :at => [doc_width - 300, text_height], :width => 200, :height => text_height, :align => :right, :valign => :center, :overflow => :shrink_to_fit
    pdf.fill_color "000000"
    if options['pages']
      pdf.text_box options['pages'][obj['id']], :at => [doc_width - 100, text_height], :width => 100, :height => text_height, :align => :right, :valign => :center, :overflow => :shrink_to_fit
    end
  end
end

.build_pdf(obj, dest_path, zipper) ⇒ Object 



13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 
# File 'lib/obf/pdf.rb', line 13

def self.build_pdf(obj, dest_path, zipper)
  OBF::Utils.as_progress_percent(0, 1.0) do
    # parse obf, draw as pdf
    pdf = Prawn::Document.new(
      :page_layout => :landscape, 
      :page_size => [8.5*72, 11*72],
      :info => {
        :Title => obj['name']
      }
    )
  
  
    if obj['boards']
      obj['boards'].each_with_index do |board, idx|
        pre = idx.to_f / obj['boards'].length.to_f
        post = (idx + 1).to_f / obj['boards'].length.to_f
        OBF::Utils.as_progress_percent(pre, post) do
          pdf.start_new_page unless idx == 0
          build_page(pdf, board, {'zipper' => zipper, 'pages' => obj['pages']})
        end
      end
    else
      build_page(pdf, obj, {})
    end
  
    pdf.render_file(dest_path)
  end
end

.from_external(content, dest_path) ⇒ Object 



186
187
188
189
190
191
192
193
194
195
 
# File 'lib/obf/pdf.rb', line 186

def self.from_external(content, dest_path)
  tmp_path = OBF::Utils.temp_path("stash")
  if content['boards']
    from_obz(OBF::OBZ.from_external(content, tmp_path), dest_path)
  else
    from_obf(OBF::OBF.from_external(content, tmp_path), dest_path)
  end
  File.unlink(tmp_path) if File.exist?(tmp_path)
  dest_path
end

.from_obf(obf_json_or_path, dest_path, zipper = nil) ⇒ Object 



2
3
4
5
6
7
8
9
10
11
 
# File 'lib/obf/pdf.rb', line 2

def self.from_obf(obf_json_or_path, dest_path, zipper=nil)
  obj = obf_json_or_path
  if obj.is_a?(String)
    obj = OBF::Utils.parse_obf(File.read(obf_json_or_path))
  else
    obj = OBF::Utils.parse_obf(obf_json_or_path)
  end
  build_pdf(obj, dest_path, zipper)
  return dest_path
end

.from_obz(obz_path, dest_path) ⇒ Object 



142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
 
# File 'lib/obf/pdf.rb', line 142

def self.from_obz(obz_path, dest_path)
  OBF::Utils.load_zip(obz_path) do |zipper|
    manifest = JSON.parse(zipper.read('manifest.json'))
    root = manifest['root']
    board = OBF::Utils.parse_obf(zipper.read(root))
    board['path'] = root
    unvisited_boards = [board]
    visited_boards = []
    while unvisited_boards.length > 0
      board = unvisited_boards.shift
      visited_boards << board
      children = []
      board['buttons'].each do |button|
        if button['load_board']
          children << button['load_board']
          all_boards = visited_boards + unvisited_boards
          if all_boards.none?{|b| b['id'] == button['load_board']['id'] || b['path'] == button['load_board']['path'] }
            path = button['load_board']['path'] || manifest[button['load_board']['id']]
            b = OBF::Utils.parse_obf(zipper.read(path))
            b['path'] = path
            unvisited_boards << b
          end
        end
      end
    end
    
    pages = {}
    visited_boards.each_with_index do |board, idx|
      pages[board['id']] = (idx + 1).to_s
    end
    
    build_pdf({
      'name' => 'Communication Board Set',
      'boards' => visited_boards,
      'pages' => pages
    }, dest_path, zipper)
  end
  # parse obz, draw as pdf

  # TODO: helper files included at the end for emergencies (eg. body parts)
  
  return dest_path
end

.to_png(pdf, dest_path) ⇒ Object 



197
198
199
 
# File 'lib/obf/pdf.rb', line 197

def self.to_png(pdf, dest_path)
  OBF::PNG.from_pdf(pdf, dest_path)
end