Added Context2d::SetSource()

src/context2d.cc

@@ -5,10 +5,11 @@
 // Copyright (c) 2010 LearnBoost <tj@learnboost.com>
 //
 
-#include "canvas.h"
-#include "context2d.h"
 #include <math.h>
 #include <string.h>
+#include "canvas.h"
+#include "context2d.h"
+#include "gradient.h"
 
 using namespace v8;
 using namespace node;
@@ -80,6 +81,7 @@ Context2d::Initialize(Handle<Object> target) {
   NODE_SET_PROTOTYPE_METHOD(t, "beginPath", BeginPath);
   NODE_SET_PROTOTYPE_METHOD(t, "closePath", ClosePath);
   NODE_SET_PROTOTYPE_METHOD(t, "arc", Arc);
+  NODE_SET_PROTOTYPE_METHOD(t, "setSource", SetSource);
   NODE_SET_PROTOTYPE_METHOD(t, "setFillRGBA", SetFillRGBA);
   NODE_SET_PROTOTYPE_METHOD(t, "setStrokeRGBA", SetStrokeRGBA);
   proto->SetAccessor(String::NewSymbol("globalCompositeOperation"), GetGlobalCompositeOperation, SetGlobalCompositeOperation);
@@ -319,6 +321,20 @@ Context2d::SetLineCap(Local<String> prop, Local<Value> val, const AccessorInfo &
   }
 }
 
+/*
+ * Set source pattern, used internally for fillStyle=
+ */
+
+Handle<Value>
+Context2d::SetSource(const Arguments &args) {
+  HandleScope scope;
+  // TODO: HasInstance / error handling
+  Context2d *context = ObjectWrap::Unwrap<Context2d>(args.This());
+  Gradient *grad = ObjectWrap::Unwrap<Gradient>(args[0]->ToObject());
+  cairo_set_source(context->getContext(), grad->getPattern());
+  return Undefined();
+}
+
 /*
  * Set fill RGBA, used internally for fillStyle=
  */

src/context2d.h

@@ -31,6 +31,7 @@ class Context2d: public node::ObjectWrap {
     static Handle<Value> ClosePath(const Arguments &args);
     static Handle<Value> Fill(const Arguments &args);
     static Handle<Value> Stroke(const Arguments &args);
+    static Handle<Value> SetSource(const Arguments &args);
     static Handle<Value> SetFillRGBA(const Arguments &args);
     static Handle<Value> SetStrokeRGBA(const Arguments &args);
     static Handle<Value> BezierCurveTo(const Arguments &args);

src/gradient.cc

@@ -60,7 +60,10 @@ Gradient::AddColorStopRGBA(const Arguments &args) {
   cairo_pattern_add_color_stop_rgba(
       grad->getPattern()
     , args[0]->NumberValue()
-    , r, g, b, a);
+    , r / 255 * 1
+    , g / 255 * 1
+    , b / 255 * 1
+    , a);
   return Undefined();
 }