SVG scaling is now supported!

lib/squib/api/image.rb

@@ -3,7 +3,7 @@ module Squib
     
     # Renders a png file at the given location.
     #   See {file:samples/image.rb samples/image.rb} and {file:samples/tgc-overlay.rb samples/tgc-overlay.rb} as examples.
-    #   Note: scaling not currently supported.
+    #   Note: scaling not currently supported for PNGs.
     #
     # @param range: the range of cards over which this will be rendered. See {file:API.md#label-Specifying+Ranges Specifying Ranges}
     # @param file: the . See {file:API.md#Specifying+Files Specifying Files}
@@ -17,17 +17,18 @@ module Squib
     end
 
     # Renders an entire svg file at the given location. Uses the SVG-specified units and DPI to determine the pixel width and height.
-    #   See {file:samples/image.rb samples/image.rb} and {file:samples/tgc-overlay.rb samples/tgc-overlay.rb} as examples.
-    #   Note: scaling not currently supported.
+    #   See {file:samples/load-images.rb samples/load-images.rb} and {file:samples/tgc-overlay.rb samples/tgc-overlay.rb} as examples.
     #
     # @param range: the range of cards over which this will be rendered. See {file:API.md#label-Specifying+Ranges Specifying Ranges}
     # @param file: the . See {file:API.md#Specifying+Files Specifying Files}
     # @param x: the x-coordinate to place
     # @param y: the y-coordinate to place
-    def svg(range: :all, file: nil, x: 0, y: 0)
+    # @param width: the pixel width that the image should scale to. SVG scaling is done with vectors, so the scaling should be smooth. When set to `:native`, uses the DPI and units of the loaded SVG document.
+    # @param height: the pixel width that the image should scale to. SVG scaling is done with vectors, so the scaling should be smooth. When set to `:native`, uses the DPI and units of the loaded SVG document.
+    def svg(range: :all, file: nil, x: 0, y: 0, width: :native, height: :native)
       range = rangeify(range)
       file = fileify(file)
-      range.each{ |i| @cards[i].svg(file, x, y) }
+      range.each{ |i| @cards[i].svg(file, x, y, width, height) }
     end
 
   end

lib/squib/graphics/image.rb

@@ -8,11 +8,14 @@ module Squib
       cc.paint(alpha)
     end
 
-    def svg(file, x, y)
-      require 'rsvg2'
+    def svg(file, x, y, width, height)
       svg = RSVG::Handle.new_from_file(file)
-      tmp = Cairo::ImageSurface.new(svg.width, svg.height)
+      width = svg.width if width == :native
+      height = svg.height if height == :native
+      puts "Width and height #{width} #{height}, svg was #{svg.width} #{svg.height}"
+      tmp = Cairo::ImageSurface.new(width, height)
       tmp_cc = Cairo::Context.new(tmp)
+      tmp_cc.scale(width.to_f / svg.width.to_f, height.to_f / svg.height.to_f)
       tmp_cc.render_rsvg_handle(svg)
       cairo_context.set_source(tmp, x, y)
       cairo_context.paint

lib/squib/input_helpers.rb

@@ -50,14 +50,13 @@ module Squib
     module_function :fontify 
 
     def radiusify(radius, x_radius, y_radius)
-      unless radius.nil?
-        ret_x = radius
-        ret_y = radius
+      if radius.nil?
+        return x_radius, y_radius
+      else 
+        return radius,radius
       end
-      ret_x = x_radius unless x_radius.nil?
-      rex_y = y_radius unless y_radius.nil?
-      return ret_x,ret_y
     end
+    module_function :radiusify
 
     def xyify
       #TODO: Allow negative numbers that subtract from the card width & height