save_pdf: full-length crop marks

Implements #184

[skip ci]

lib/squib/args/sheet.rb

@@ -60,6 +60,10 @@ module Squib
         end
       end
 
+      def validate_crop_marks(arg)
+        arg.to_s.downcase.to_sym unless arg == false
+      end
+
       def validate_fill_color(arg)
         colorify(arg, @custom_colors)
       end
@@ -85,6 +89,33 @@ module Squib
       end
 
       def crop_coords(x, y, deck_w, deck_h)
+        case crop_marks
+        when false
+          []
+        when :full
+          [
+            {
+              # Vertical, Left
+              x1: x + trim + crop_margin_left, y1: 0,
+              x2: x + trim + crop_margin_left, y2: height - margin + 1
+            },
+            {
+              # Vertical, Right
+              x1: x + deck_w - trim - crop_margin_right, y1: 0,
+              x2: x + deck_w - trim - crop_margin_right, y2: height - margin + 1
+            },
+            {
+              # Horizontal, Top
+              x1: 0                 , y1: y + trim + crop_margin_top,
+              x2: width - margin + 1, y2: y + trim + crop_margin_top
+            },
+            {
+              # Horizontal, Bottom
+              x1: 0         , y1: y + deck_h - trim - crop_margin_bottom,
+              x2: width - margin + 1, y2: y + deck_h - trim - crop_margin_bottom
+            },
+          ]
+        else # e.g. :margin
           [
             { # Vertical, Upper-left
               x1: x + trim + crop_margin_left, y1: 0,
@@ -120,6 +151,7 @@ module Squib
             },
           ]
         end
+      end
 
     end
 

lib/squib/graphics/save_pdf.rb

@@ -38,7 +38,7 @@ module Squib
             bar.increment
             cc.reset_clip
             cc.translate(-x, -y)
-            draw_crop_marks(cc, x, y, sheet) if sheet.crop_marks
+            draw_crop_marks(cc, x, y, sheet)
             x += card.width + sheet.gap - 2 * sheet.trim
             if x > (sheet.width - card_width - sheet.margin)
               x = sheet.margin

samples/saves/_save_pdf.rb

@@ -15,4 +15,11 @@ Squib::Deck.new(cards: 8) do
       crop_stroke_dash: '5 5', crop_stroke_color: :red, crop_stroke_width: 4.0,
       crop_margin_left: '0.3in', crop_margin_right: '0.45in',
       crop_margin_top:  '0.4in', crop_margin_bottom: '0.85in'
+
+   # Full crop marks
+   save_pdf file: 'crops-full.pdf', crop_marks: :full,
+      trim: 0, gap: 20,
+      crop_stroke_dash: '5 5', crop_stroke_color: :red, crop_stroke_width: 4.0,
+      crop_margin_left: '0.3in', crop_margin_right: '0.45in',
+      crop_margin_top:  '0.4in', crop_margin_bottom: '0.85in'
 end