Add asADash to Lua for scraping

src/utils/SkLua.cpp

Index: src/utils/SkLua.cpp
diff --git a/src/utils/SkLua.cpp b/src/utils/SkLua.cpp
index 346899a5dde785b0e00fd233aa1df8df494b7c06..bbf6cfaabfe52aba3112ca0856c3a7173feafc80 100644
--- a/src/utils/SkLua.cpp
+++ b/src/utils/SkLua.cpp
@@ -18,7 +18,6 @@
 #include "SkMatrix.h"
 #include "SkPaint.h"
 #include "SkPath.h"
-#include "SkPathEffect.h"
 #include "SkPixelRef.h"
 #include "SkRRect.h"
 #include "SkString.h"
@@ -233,6 +232,14 @@ void SkLua::pushRRect(const SkRRect& rr, const char key[]) {
     CHECK_SETFIELD(key);
 }
 
+void SkLua::pushDash(const SkPathEffect::DashInfo& info, const char key[]) {
+    lua_newtable(fL);
+    setfield_scalar(fL, "fCount", info.fCount);
+    setfield_scalar(fL, "fPhase", info.fPhase);
+    CHECK_SETFIELD(key);
+}
+
+
 void SkLua::pushMatrix(const SkMatrix& matrix, const char key[]) {
     push_obj(fL, matrix);
     CHECK_SETFIELD(key);
@@ -1006,12 +1013,29 @@ static const struct luaL_Reg gSkShader_Methods[] = {
 
 ///////////////////////////////////////////////////////////////////////////////
 
+static int lpatheffect_asADash(lua_State* L) {
+    SkPathEffect* pe = get_ref<SkPathEffect>(L, 1);

[robertphillips, 2014/05/14 14:01:35]

NULL != ?

+    if (pe) {
+        SkPathEffect::DashInfo info;
+        SkPathEffect::DashType dashType = pe->asADash(&info);
+        if (SkPathEffect::kDash_DashType == dashType) {
+            SkAutoTArray<SkScalar> intervals(info.fCount);
+            info.fIntervals = intervals.get();
+            pe->asADash(&info);
+            SkLua(L).pushDash(info);
+            return 1;
+        }
+    }
+    return 0;
+}
+
 static int lpatheffect_gc(lua_State* L) {
     get_ref<SkPathEffect>(L, 1)->unref();
     return 0;
 }
 
 static const struct luaL_Reg gSkPathEffect_Methods[] = {
+    { "asADash",        lpatheffect_asADash },
     { "__gc",           lpatheffect_gc },
     { NULL, NULL }
 };