修改userdata创建方式

1 files changed, 22 insertions, 21 deletions

diff --git a/src/script/graphics/luaopen_graphics.cpp b/src/script/graphics/luaopen_graphics.cpp
index 80acc94..0d240fe 100644
--- a/src/script/graphics/luaopen_graphics.cpp
+++ b/src/script/graphics/luaopen_graphics.cpp
@@ -76,9 +76,6 @@ namespace lua
     */
     static int l_newImage(lua_State* L)
     {
-        Image* img = (Image*)luax_newinstance(L, TYPE_IMAGE, sizeof(Image));
-        // pseudo constructor
-        img->init();
         Filesystem* fs = Filesystem::get(); 
         const char* f = luax_checkstring(L, 1);
         if (!fs->exists(f))
@@ -87,8 +84,11 @@ namespace lua
             exit(1);
         }
         Buffer b;
-        fs->read(f, &b); 
-        img->loadb((const char*)b.data, b.size); 
+        fs->read(f, &b);
+
+        Proxy* proxy = (Proxy*)luax_newinstance(L, TYPE_IMAGE, sizeof(Proxy));
+        Image* img = new Image((const char*)b.data, b.size);
+        proxy->bind(img);
         return 1;
     }
 
@@ -98,10 +98,10 @@ namespace lua
     */
     static int l_newShader(lua_State* L)
     {
-        JSLProgram* j = (JSLProgram*)luax_newinstance(L, TYPE_JSL, sizeof(JSLProgram));
-        const char* modestr = luax_checkstring(L, 1);
-        j->init(modestr);
-
+        Proxy* proxy = (Proxy*)luax_newinstance(L, TYPE_JSL, sizeof(JSLProgram));
+        const char* program = luax_checkstring(L, 1);
+        JSLProgram* jsl = new JSLProgram(program);
+        proxy->bind(jsl);
         return 1;
     }
 
@@ -111,10 +111,11 @@ namespace lua
     */
     static int l_newCanvas(lua_State* L)
     {
-        Canvas* cvs = (Canvas*)luax_newinstance(L, TYPE_CANVAS, sizeof(Canvas));
         int w = luax_checknumber(L, 1);
         int h = luax_checknumber(L, 2);
-        cvs->init(w, h);
+        Proxy* proxy = (Proxy*)luax_newinstance(L, TYPE_CANVAS, sizeof(Proxy));
+        Canvas* cvs = new Canvas(w, h);
+        proxy->bind(cvs);
         return 1;
     }
     
@@ -155,14 +156,14 @@ namespace lua
         float r  = luax_optnumber(L, 6, 0);
         if (luax_istype(L, 1, TYPE_IMAGE))
         {
-            /* is image */
-            Image* p = (Image*)luax_toudata(L, 1);
-            p->draw(x, y, sx, sy, r);
+            Proxy* proxy = (Proxy*)luax_toudata(L, 1);
+            Image* img = (Image*)proxy->object;
+            img->draw(x, y, sx, sy, r);
         }
         else if (luax_istype(L, 1, TYPE_CANVAS))
         {
-            /* is canvas */
-            Canvas* p = (Canvas*)luax_toudata(L, 1);
+            Proxy* proxy = (Proxy*)luax_toudata(L, 1);
+            Canvas* p = (Canvas*)proxy->object;
             p->draw(x, y, sx, sy, r);
         }
         else
@@ -212,7 +213,8 @@ namespace lua
             Canvas::unbind(); 
             return 0; 
         }
-        Canvas* c = (Canvas*)luax_checktype(L, 1, TYPE_CANVAS);
+        Proxy* proxy = (Proxy*)luax_checktype(L, 1, TYPE_CANVAS);
+        Canvas* c = (Canvas*)proxy->object;
         c->bind();
         return 0;
     }
@@ -232,13 +234,12 @@ namespace lua
         }
         if (luax_istype(L, 1, TYPE_JSL))
         {
-            /* is image */
-            JSLProgram* jsl = (JSLProgram*)luax_toudata(L, 1);
-            jsl->use(); 
+            Proxy* proxy = (Proxy*)luax_toudata(L, 1);
+            JSLProgram* jsl = (JSLProgram*)proxy->object;
+            jsl->use();
         }
         else
         {
-            /* wrong type */
             luax_typerror(L, 1, "JSL shader");
         }
         return 0;