From b23861d1b6c926aa90151a0fc6a0e07e3a5a15d3 Mon Sep 17 00:00:00 2001
From: Tj Holowaychuk <tj@vision-media.ca>
Date: Mon, 1 Nov 2010 12:46:35 -0700
Subject: [PATCH] Added Canvas getter/setters

---
 src/canvas.cc | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
 src/canvas.h  |  8 ++++----
 2 files changed, 51 insertions(+), 5 deletions(-)

diff --git a/src/canvas.cc b/src/canvas.cc
index 844ec23..c13ad17 100644
--- a/src/canvas.cc
+++ b/src/canvas.cc
@@ -31,8 +31,11 @@ Canvas::Initialize(Handle<Object> target) {
   t->InstanceTemplate()->SetInternalFieldCount(1);
   t->SetClassName(String::NewSymbol("Canvas"));
 
+  Local<ObjectTemplate> proto = t->PrototypeTemplate();
   NODE_SET_PROTOTYPE_METHOD(t, "streamPNGSync", StreamPNGSync);
   NODE_SET_PROTOTYPE_METHOD(t, "savePNG", SavePNG);
+  proto->SetAccessor(String::NewSymbol("width"), GetWidth, SetWidth);
+  proto->SetAccessor(String::NewSymbol("height"), GetHeight, SetHeight);
   target->Set(String::NewSymbol("Canvas"), t->GetFunction());
 }
 
@@ -48,12 +51,55 @@ Canvas::New(const Arguments &args) {
 
   if (args[0]->IsNumber()) width = args[0]->Uint32Value();
   if (args[1]->IsNumber()) height = args[1]->Uint32Value();
-
   Canvas *canvas = new Canvas(width, height);
   canvas->Wrap(args.This());
   return args.This();
 }
 
+/*
+ * Get width.
+ */
+
+Handle<Value>
+Canvas::GetWidth(Local<String> prop, const AccessorInfo &info) {
+  Canvas *canvas = ObjectWrap::Unwrap<Canvas>(info.This());
+  return Number::New(canvas->width);
+}
+
+/*
+ * Set width.
+ */
+
+void
+Canvas::SetWidth(Local<String> prop, Local<Value> val, const AccessorInfo &info) {
+  if (val->IsNumber()) {
+    Canvas *canvas = ObjectWrap::Unwrap<Canvas>(info.This());
+    canvas->width = val->Uint32Value();
+  }
+}
+
+/*
+ * Get height.
+ */
+
+Handle<Value>
+Canvas::GetHeight(Local<String> prop, const AccessorInfo &info) {
+  Canvas *canvas = ObjectWrap::Unwrap<Canvas>(info.This());
+  return Number::New(canvas->height);
+}
+
+/*
+ * Set height.
+ */
+
+void
+Canvas::SetHeight(Local<String> prop, Local<Value> val, const AccessorInfo &info) {
+  if (val->IsNumber()) {
+    Canvas *canvas = ObjectWrap::Unwrap<Canvas>(info.This());
+    canvas->height = val->Uint32Value();
+  }
+}
+
 /*
  * Canvas::StreamPNG callback.
  */
diff --git a/src/canvas.h b/src/canvas.h
index 30dc890..3f3a082 100644
--- a/src/canvas.h
+++ b/src/canvas.h
@@ -52,10 +52,10 @@ class Canvas: public node::ObjectWrap {
     int height;
     static void Initialize(Handle<Object> target);
     static Handle<Value> New(const Arguments &args);
-    static Handle<Value> SetHeight(const Arguments &args);
-    static Handle<Value> GetHeight(const Arguments &args);
-    static Handle<Value> SetWidth(const Arguments &args);
-    static Handle<Value> GetWidth(const Arguments &args);
+    static Handle<Value> GetWidth(Local<String> prop, const AccessorInfo &info);
+    static Handle<Value> GetHeight(Local<String> prop, const AccessorInfo &info);
+    static void SetWidth(Local<String> prop, Local<Value> val, const AccessorInfo &info);
+    static void SetHeight(Local<String> prop, Local<Value> val, const AccessorInfo &info);
     static Handle<Value> SavePNG(const Arguments &args);
     static Handle<Value> StreamPNGSync(const Arguments &args);
     static Handle<Value> Error(cairo_status_t status);