From 0d5b80a284514b082bb49c15d2b9a6cf108d8ecc Mon Sep 17 00:00:00 2001
From: Tj Holowaychuk <tj@vision-media.ca>
Date: Tue, 2 Nov 2010 14:05:12 -0700
Subject: [PATCH] Added SetTextBaseline()

---
 src/CanvasRenderingContext2d.cc | 30 +++++++++++++++++++++++++++++-
 src/CanvasRenderingContext2d.h  |  2 ++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/src/CanvasRenderingContext2d.cc b/src/CanvasRenderingContext2d.cc
index 41816a1..14cd319 100644
--- a/src/CanvasRenderingContext2d.cc
+++ b/src/CanvasRenderingContext2d.cc
@@ -59,6 +59,19 @@ using namespace node;
   int width = args[2]->Int32Value(); \
   int height = args[3]->Int32Value();
 
+/*
+ * Text baselines.
+ */
+
+enum {
+    TEXT_BASELINE_ALPHABETIC
+  , TEXT_BASELINE_TOP
+  , TEXT_BASELINE_BOTTOM
+  , TEXT_BASELINE_MIDDLE
+  , TEXT_BASELINE_IDEOGRAPHIC
+  , TEXT_BASELINE_HANGING
+};
+
 /*
  * Initialize Context2d.
  */
@@ -88,6 +101,7 @@ Context2d::Initialize(Handle<Object> target) {
   NODE_SET_PROTOTYPE_METHOD(t, "strokeRect", StrokeRect);
   NODE_SET_PROTOTYPE_METHOD(t, "clearRect", ClearRect);
   NODE_SET_PROTOTYPE_METHOD(t, "rect", Rect);
+  NODE_SET_PROTOTYPE_METHOD(t, "setTextBaseline", SetTextBaseline);
   NODE_SET_PROTOTYPE_METHOD(t, "setTextAlignment", SetTextAlignment);
   NODE_SET_PROTOTYPE_METHOD(t, "setTextPath", SetTextPath);
   NODE_SET_PROTOTYPE_METHOD(t, "measureText", MeasureText);
@@ -868,6 +882,21 @@ Context2d::MeasureText(const Arguments &args) {
   return scope.Close(obj);
 }
 
+/*
+ * Set text baseline.
+ */
+
+Handle<Value>
+Context2d::SetTextBaseline(const Arguments &args) {
+  HandleScope scope;
+
+  if (!args[0]->IsInt32()) return Undefined();
+  Context2d *context = ObjectWrap::Unwrap<Context2d>(args.This());
+  context->state->textBaseline = args[0]->Int32Value();
+
+  return Undefined();
+}
+
 /*
  * Set text alignment. -1 0 1
  */
@@ -883,7 +912,6 @@ Context2d::SetTextAlignment(const Arguments &args) {
   return Undefined();
 }
 
-
 /*
  * Set text path at x, y.
  */
diff --git a/src/CanvasRenderingContext2d.h b/src/CanvasRenderingContext2d.h
index 8e16de3..f32054f 100644
--- a/src/CanvasRenderingContext2d.h
+++ b/src/CanvasRenderingContext2d.h
@@ -33,6 +33,7 @@ typedef struct {
   cairo_pattern_t *strokePattern;
   float globalAlpha;
   short textAlignment;
+  short textBaseline;
 } canvas_state_t;
 
 class Context2d: public node::ObjectWrap {
@@ -65,6 +66,7 @@ class Context2d: public node::ObjectWrap {
     static Handle<Value> SetShadowRGBA(const Arguments &args);
     static Handle<Value> SetFillPattern(const Arguments &args);
     static Handle<Value> SetStrokePattern(const Arguments &args);
+    static Handle<Value> SetTextBaseline(const Arguments &args);
     static Handle<Value> SetTextAlignment(const Arguments &args);
     static Handle<Value> SetTextPath(const Arguments &args);
     static Handle<Value> MeasureText(const Arguments &args);