Added button stylers from sxross (https://github.com/sxross)

motion/ruby_motion_query/stylers/ui_button_styler.rb

@@ -45,6 +45,34 @@ module RubyMotionQuery
         @view.setBackgroundImage value, forState: UIControlStateHighlighted
       end
 
+      def border_color=(value)
+        if value.is_a?(UICachedDeviceRGBColor)
+          @view.layer.setBorderColor(value.CGColor)
+        else
+          @view.layer.setBorderColor value
+        end
+      end
+
+      def border_color
+        @view.layer.borderColor
+      end
+
+      def corner_radius=(value = 2)
+        @view.layer.cornerRadius = value
+      end
+
+      def corner_radius
+        @view.layer.cornerRadius
+      end
+
+      def border_width=(value)
+        @view.layer.borderWidth = value
+      end
+
+      def border_width
+        @view.layer.borderWidth
+      end
+
     end
   end
 end

spec/stylers/ui_button_styler.rb

@@ -26,5 +26,57 @@ describe 'stylers/ui_button' do
       # TODO
       1.should == 1
     end
+
   end
+
+  describe "bordered button extensions" do
+    before { @view = @vc.rmq.append(@view_klass, :ui_button_kitchen_sink) }
+
+    describe "border width" do
+      before{ @view.style{|st| st.border_width = 2} }
+
+      it 'should be able to add a border to a button' do
+        @view.get.layer.borderWidth.should == 2
+      end
+
+      it "can get a border width for a button" do
+        bw = nil
+        @view.style{|st| bw = st.border_width}
+        bw.should == 2
+      end
+    end
+
+    describe "corner radius" do
+      before{ @view.style{|st| st.corner_radius = 10} }
+
+      it "sets the corner radius" { @view.get.layer.cornerRadius.should == 10 }
+      it "gets the corner radius" do
+        cr = nil
+        @view.style{|st| cr = st.corner_radius}
+        cr.should == 10
+      end
+    end
+
+    describe "border colors" do
+      before{ @view.style{|st| st.border_color = rmq.color.blue} }
+
+      it "sets the correct number of color components" do
+        CGColorGetNumberOfComponents(@view.get.layer.borderColor).should >= 4
+      end
+
+      it "sets the right colors" do
+        color = nil
+        @view.style{|st| color = st.border_color}
+        components = CGColorGetComponents(color)
+
+        # R=0, G=0, B=1 A=1
+
+        components[0].to_i.should == 0
+        components[1].to_i.should == 0
+        components[2].to_i.should == 1
+        components[3].to_i.should == 1
+      end
+    end
+  end
+
 end