michael@0: /*
michael@0:  * Copyright 2013 Google Inc.
michael@0:  *
michael@0:  * Use of this source code is governed by a BSD-style license that can be
michael@0:  * found in the LICENSE file.
michael@0:  */
michael@0: 
michael@0: #ifndef SkLua_DEFINED
michael@0: #define SkLua_DEFINED
michael@0: 
michael@0: #include "SkClipStack.h"
michael@0: #include "SkColor.h"
michael@0: #include "SkScalar.h"
michael@0: #include "SkString.h"
michael@0: 
michael@0: struct lua_State;
michael@0: 
michael@0: class SkCanvas;
michael@0: class SkMatrix;
michael@0: class SkPaint;
michael@0: class SkPath;
michael@0: struct SkRect;
michael@0: class SkRRect;
michael@0: 
michael@0: #define SkScalarToLua(x)    SkScalarToDouble(x)
michael@0: #define SkLuaToScalar(x)    SkDoubleToScalar(x)
michael@0: 
michael@0: class SkLua {
michael@0: public:
michael@0:     static void Load(lua_State*);
michael@0: 
michael@0:     SkLua(const char termCode[] = NULL);    // creates a new L, will close it
michael@0:     SkLua(lua_State*);                      // uses L, will not close it
michael@0:     ~SkLua();
michael@0: 
michael@0:     lua_State* get() const { return fL; }
michael@0:     lua_State* operator*() const { return fL; }
michael@0:     lua_State* operator->() const { return fL; }
michael@0: 
michael@0:     bool runCode(const char code[]);
michael@0:     bool runCode(const void* code, size_t size);
michael@0: 
michael@0:     void pushBool(bool, const char tableKey[] = NULL);
michael@0:     void pushString(const char[], const char tableKey[] = NULL);
michael@0:     void pushString(const char[], size_t len, const char tableKey[] = NULL);
michael@0:     void pushString(const SkString&, const char tableKey[] = NULL);
michael@0:     void pushArrayU16(const uint16_t[], int count, const char tableKey[] = NULL);
michael@0:     void pushColor(SkColor, const char tableKey[] = NULL);
michael@0:     void pushU32(uint32_t, const char tableKey[] = NULL);
michael@0:     void pushScalar(SkScalar, const char tableKey[] = NULL);
michael@0:     void pushRect(const SkRect&, const char tableKey[] = NULL);
michael@0:     void pushRRect(const SkRRect&, const char tableKey[] = NULL);
michael@0:     void pushMatrix(const SkMatrix&, const char tableKey[] = NULL);
michael@0:     void pushPaint(const SkPaint&, const char tableKey[] = NULL);
michael@0:     void pushPath(const SkPath&, const char tableKey[] = NULL);
michael@0:     void pushCanvas(SkCanvas*, const char tableKey[] = NULL);
michael@0:     void pushClipStack(const SkClipStack&, const char tableKey[] = NULL);
michael@0:     void pushClipStackElement(const SkClipStack::Element& element, const char tableKey[] = NULL);
michael@0: 
michael@0:     // This SkCanvas lua methods is declared here to benefit from SkLua's friendship with SkCanvas.
michael@0:     static int lcanvas_getReducedClipStack(lua_State* L);
michael@0: 
michael@0: private:
michael@0:     lua_State*  fL;
michael@0:     SkString    fTermCode;
michael@0:     bool        fWeOwnL;
michael@0: };
michael@0: 
michael@0: #endif