Implementation of hand

samples/hand.rb

@@ -1,45 +1,21 @@
 require 'squib'
 
-# Built-in layouts are easy to use and extend
 Squib::Deck.new(cards: 8, layout: 'playing-card.yml') do
-  background color: :white
+  background color: :cyan
   rect x: 37, y: 37, width: 750, height: 1050, fill_color: :black, radius: 25
   rect x: 75, y: 75, width: 675, height: 975, fill_color: :white, radius: 20
-  text str: ('A'..'H').to_a, layout: :bonus_ul, font: 'Sans bold 100'
-  # hand range: :all,
-  #      center_x: :auto, center_y: :auto,
-  #      angle_start: 0, angle_end: Math::PI,
-  #      width: :auto, height: :auto
-  # save_png prefix: 'hand_'
-  #
-  # Here's the hacky version
-  # So much hardcoded magic to get this to work. Math is hard.
-  # Idea: getting the final image surface extents is hard math for me. Maybe
-  #       just put it on a recording surface, then get the extents.
-  #       Can't seem to create unbounded surfaces in rcairo, so just make it
-  #       massively large enough. Paint the recording surface with proper margins
-  #       at the end
-  cxt = Cairo::Context.new(Cairo::ImageSurface.new(2 * 1.3 * height, 2 * 1.3 * height))
-  cxt.translate( 1.3 * height , 1.3 * height)
-  cxt.rotate(Math::PI / -4.0)
-  cxt.translate( -1.3 * height, -1.3 * height)
-  cxt.translate(500, 500) # I don't even know why I need this
-  angle = (Math::PI / 2.0) / cards.size
-  radius_x, radius_y = 0 + (width / 2.0), 1.3 * height
-  each_with_index do |card, i|
-    cxt.translate(radius_x, radius_y)
-    cxt.rotate(angle)
-    cxt.translate(-radius_x, -radius_y)
-    card.use_cairo do |card_cxt|
-      cxt.rounded_rectangle(37, 37, 825-75, 1125-75, 25, 25)
-      cxt.clip
-      cxt.set_source(card_cxt.target)
-      cxt.paint
-      cxt.reset_clip
-    end
-  end
+  text str: ('A'..'Z').to_a, layout: :bonus_ul, font: 'Sans bold 100'
 
-  cxt.target.write_to_png('_output/hand.png')
+  # Defaults are sensible
+  hand #saves to _output/hand.png
 
+  # Here's a prettier version:
+  #  - Each card is trimmed with rounded corners
+  #  - Zero radius means cards rotate about the bottom of the card
+  #  - Cards are shown in reverse order
+  hand trim: 37.5, trim_radius: 25,
+       radius: 0,
+       range: 7.downto(0),
+       file: 'hand_pretty.png'
 end