text_component.rb in prawn-svg-0.30.0

- old
+ new

@@ -1,10 +1,10 @@
 class Prawn::SVG::Elements::TextComponent < Prawn::SVG::Elements::DepthFirstBase
   attr_reader :commands
 
   Printable = Struct.new(:element, :text, :leading_space?, :trailing_space?)
-  TextState = Struct.new(:parent, :x, :y, :dx, :dy, :rotation, :spacing, :mode)
+  TextState = Struct.new(:parent, :x, :y, :dx, :dy, :rotation, :spacing, :mode, :text_length, :length_adjust)
 
   def parse
     if state.inside_clip_path
       raise SkipElementError, "<text> elements are not supported in clip paths"
     end
@@ -12,10 +12,12 @@
     state.text.x = (attributes['x'] || "").split(COMMA_WSP_REGEXP).collect { |n| x(n) }
     state.text.y = (attributes['y'] || "").split(COMMA_WSP_REGEXP).collect { |n| y(n) }
     state.text.dx = (attributes['dx'] || "").split(COMMA_WSP_REGEXP).collect { |n| x_pixels(n) }
     state.text.dy = (attributes['dy'] || "").split(COMMA_WSP_REGEXP).collect { |n| y_pixels(n) }
     state.text.rotation = (attributes['rotate'] || "").split(COMMA_WSP_REGEXP).collect(&:to_f)
+    state.text.text_length = normalize_length(attributes['textLength'])
+    state.text.length_adjust = attributes['lengthAdjust']
     state.text.spacing = calculate_character_spacing
     state.text.mode = calculate_text_rendering_mode
 
     @commands = []
 
@@ -131,10 +133,18 @@
         opts[:rotate] = -rotate
       else
         opts.delete(:rotate)
       end
 
+      if state.text.text_length
+        if state.text.length_adjust == 'spacingAndGlyphs'
+          opts[:stretch_to_width] = state.text.text_length
+        else
+          opts[:pad_to_width] = state.text.text_length
+        end
+      end
+
       if remaining
         add_call 'draw_text', text[0..0], opts.dup
         text = text[1..-1]
       else
         add_call 'draw_text', text, opts.dup
@@ -219,7 +229,11 @@
     spacing == 'normal' ? 0 : pixels(spacing)
   end
 
   # overridden, we don't want to call fill/stroke as draw_text does this for us
   def apply_drawing_call
+  end
+
+  def normalize_length(length)
+    x_pixels(length) if length && length.match(/\d/)
   end
 end