Getting text to work

bin/squib-eg

@@ -3,14 +3,16 @@ require 'squib'
 
 data = {'name' => ['Thief', 'Grifter', 'Mastermind'], 
         'level' => [1,2,3]}
+longtext = "Hello, World! What do you know about tweetle beetles? well... \nWhen tweetle beetles fight, it's called a tweetle beetle battle. And when they battle in a puddle, it's a tweetle beetle puddle battle. AND when tweetle beetles battle with paddles in a puddle, they call it a tweetle beetle puddle paddle battle. AND... When beetles battle beetles in a puddle paddle battle and the beetle battle puddle is a puddle in a bottle... ..they call this a tweetle beetle bottle puddle paddle battle muddle. AND... When beetles fight these battles in a bottle with their paddles and the bottle's on a poodle and the poodle's eating noodles... ...they call this a muddle puddle tweetle poodle beetle noodle bottle paddle battle."
 
 Squib::Deck.new(width: 825, height: 1125, cards: 3) do
   background color: [1.0,1.0,1.0]
   rect x: 15, y: 15, width: 795, height: 1095, x_radius: 50, y_radius: 50
   rect x: 30, y: 30, width: 150, height: 150, x_radius: 25, y_radius: 25
 
-  text str: data['name'], x: 250, y: 55
+  text str: data['name'], x: 250, y: 55, font: 'Arial 54'
-  text str: data['level'], x: 65, y: 65
+  text str: data['level'], x: 65, y: 65, font: 'Arial 72'
+  text str: longtext, x: 100, y: 600, font: 'Arial 16'
 
   save format: :png
 end

lib/squib/api/text.rb

@@ -1,5 +1,8 @@
 module Squib
   class Deck
+    def fontify (font)
+      font
+    end
 
     def font(type: 'Arial', size: 12, **options)
     end
@@ -10,6 +13,7 @@ module Squib
     def text(range: :all, str: '', font: :use_set, x: 0, y: 0, **options)
       range = rangeify(range)
       str = [str] * @cards.size unless str.respond_to? :each
+      font = fontify(font)
       range.each do |i|
         cards[i].text(str[i], font, x, y, options)
       end

lib/squib/card.rb

@@ -7,7 +7,7 @@ module Squib
     attr_accessor :cairo_surface, :cairo_context
 
     def initialize(width, height)
-      @width=width, @height=height
+      @width=width; @height=height
       @cairo_surface = Cairo::ImageSurface.new(width,height)
       @cairo_context = Cairo::Context.new(@cairo_surface)
     end

lib/squib/graphics/save_doc.rb

@@ -4,6 +4,7 @@ module Squib
     def save_pdf
       #paper is 8.5x11
       # PDF points are 1/72 of an inch
+      raise "Not implemented yet!"
       width = 8.5 * 72
       height = 11 * 72
       cc = Cairo::Context.new(Cairo::PDFSurface.new('_img/deck.pdf', width, height))

lib/squib/graphics/text.rb

@@ -1,13 +1,27 @@
+require 'pango'
+
 module Squib
   class Card
-    
+
     def text(str, font, x, y, options)
       cc = cairo_context
-      cc.set_source_rgb(0.0,0.0,0.0)
+      cc.set_source_color(:black) #black
-      cc.select_font_face ("Helvetica");
+      cc.move_to(x,y)
-      cc.set_font_size(36)
+      layout = cc.create_pango_layout
-      cc.move_to(x,y + cc.text_extents(@str.to_s).height)
+      layout.text = str.to_s
-      cc.show_text(str.to_s)
+      w = options[:width] ; h = options[:height] 
+      w ||= (@width - 2*x)  ; h ||= (@height - 2*y) # default centers to x,y 
+      w *= Pango::SCALE   ; h *= Pango::SCALE    
+      layout.width=w      ; layout.height=h
+      layout.wrap = Pango::WRAP_WORD
+      layout.justify = true
+      layout.alignment = Pango::ALIGN_LEFT
+      layout.font_description = Pango::FontDescription.new(font)
+      #Center it vertically?
+      #puts "Height: #{layout.extents[1].height / Pango::SCALE}"
+      #puts "Height: #{layout.pixel_size[1]*layout.line_count}"
+      cc.update_pango_layout(layout)
+      cc.show_pango_layout(layout)
     end
 
   end