| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "SkLuaCanvas.h" |
| #include "SkLua.h" |
| |
| extern "C" { |
| #include "lua.h" |
| #include "lauxlib.h" |
| } |
| |
| class AutoCallLua : public SkLua { |
| public: |
| AutoCallLua(lua_State* L, const char func[], const char verb[]) : INHERITED(L) { |
| lua_getglobal(L, func); |
| if (!lua_isfunction(L, -1)) { |
| int t = lua_type(L, -1); |
| SkDebugf("--- expected function %d\n", t); |
| } |
| |
| lua_newtable(L); |
| this->pushString(verb, "verb"); |
| } |
| |
| ~AutoCallLua() { |
| lua_State* L = this->getL(); |
| if (lua_pcall(L, 1, 0, 0) != LUA_OK) { |
| SkDebugf("lua err: %s\n", lua_tostring(L, -1)); |
| } |
| lua_settop(L, -1); |
| } |
| |
| private: |
| typedef SkLua INHERITED; |
| }; |
| |
| #define AUTO_LUA(verb) AutoCallLua lua(fL, fFunc.c_str(), verb) |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| void SkLuaCanvas::pushThis() { |
| SkLua(fL).pushCanvas(this); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| |
| static SkBitmap make_bm(int width, int height) { |
| SkBitmap bm; |
| bm.setConfig(SkBitmap::kNo_Config, width, height); |
| return bm; |
| } |
| |
| SkLuaCanvas::SkLuaCanvas(int width, int height, lua_State* L, const char func[]) |
| : INHERITED(make_bm(width, height)) |
| , fL(L) |
| , fFunc(func) { |
| } |
| |
| SkLuaCanvas::~SkLuaCanvas() {} |
| |
| int SkLuaCanvas::save(SaveFlags flags) { |
| AUTO_LUA("save"); |
| return this->INHERITED::save(flags); |
| } |
| |
| int SkLuaCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint, |
| SaveFlags flags) { |
| AUTO_LUA("saveLayer"); |
| if (bounds) { |
| lua.pushRect(*bounds, "bounds"); |
| } |
| if (paint) { |
| lua.pushPaint(*paint, "paint"); |
| } |
| return this->INHERITED::save(flags); |
| } |
| |
| void SkLuaCanvas::restore() { |
| AUTO_LUA("restore"); |
| this->INHERITED::restore(); |
| } |
| |
| bool SkLuaCanvas::translate(SkScalar dx, SkScalar dy) { |
| AUTO_LUA("translate"); |
| lua.pushScalar(dx, "dx"); |
| lua.pushScalar(dy, "dy"); |
| return this->INHERITED::translate(dx, dy); |
| } |
| |
| bool SkLuaCanvas::scale(SkScalar sx, SkScalar sy) { |
| AUTO_LUA("scale"); |
| lua.pushScalar(sx, "sx"); |
| lua.pushScalar(sy, "sy"); |
| return this->INHERITED::scale(sx, sy); |
| } |
| |
| bool SkLuaCanvas::rotate(SkScalar degrees) { |
| AUTO_LUA("rotate"); |
| lua.pushScalar(degrees, "degrees"); |
| return this->INHERITED::rotate(degrees); |
| } |
| |
| bool SkLuaCanvas::skew(SkScalar kx, SkScalar ky) { |
| AUTO_LUA("skew"); |
| lua.pushScalar(kx, "kx"); |
| lua.pushScalar(ky, "ky"); |
| return this->INHERITED::skew(kx, ky); |
| } |
| |
| bool SkLuaCanvas::concat(const SkMatrix& matrix) { |
| AUTO_LUA("concat"); |
| return this->INHERITED::concat(matrix); |
| } |
| |
| void SkLuaCanvas::setMatrix(const SkMatrix& matrix) { |
| this->INHERITED::setMatrix(matrix); |
| } |
| |
| bool SkLuaCanvas::clipRect(const SkRect& r, SkRegion::Op op, bool doAA) { |
| AUTO_LUA("clipRect"); |
| lua.pushRect(r, "rect"); |
| lua.pushBool(doAA, "aa"); |
| return this->INHERITED::clipRect(r, op, doAA); |
| } |
| |
| bool SkLuaCanvas::clipRRect(const SkRRect& rrect, SkRegion::Op op, bool doAA) { |
| AUTO_LUA("clipRRect"); |
| lua.pushRRect(rrect, "rrect"); |
| lua.pushBool(doAA, "aa"); |
| return this->INHERITED::clipRRect(rrect, op, doAA); |
| } |
| |
| bool SkLuaCanvas::clipPath(const SkPath& path, SkRegion::Op op, bool doAA) { |
| AUTO_LUA("clipPath"); |
| lua.pushPath(path, "path"); |
| lua.pushBool(doAA, "aa"); |
| return this->INHERITED::clipPath(path, op, doAA); |
| } |
| |
| bool SkLuaCanvas::clipRegion(const SkRegion& deviceRgn, SkRegion::Op op) { |
| AUTO_LUA("clipRegion"); |
| return this->INHERITED::clipRegion(deviceRgn, op); |
| } |
| |
| void SkLuaCanvas::drawPaint(const SkPaint& paint) { |
| AUTO_LUA("drawPaint"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawPoints(PointMode mode, size_t count, |
| const SkPoint pts[], const SkPaint& paint) { |
| AUTO_LUA("drawPoints"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawOval(const SkRect& rect, const SkPaint& paint) { |
| AUTO_LUA("drawOval"); |
| lua.pushRect(rect, "rect"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawRect(const SkRect& rect, const SkPaint& paint) { |
| AUTO_LUA("drawRect"); |
| lua.pushRect(rect, "rect"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawRRect(const SkRRect& rrect, const SkPaint& paint) { |
| AUTO_LUA("drawRRect"); |
| lua.pushRRect(rrect, "rrect"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawPath(const SkPath& path, const SkPaint& paint) { |
| AUTO_LUA("drawPath"); |
| lua.pushPath(path, "path"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawBitmap(const SkBitmap& bitmap, SkScalar x, SkScalar y, |
| const SkPaint* paint) { |
| AUTO_LUA("drawBitmap"); |
| if (paint) { |
| lua.pushPaint(*paint, "paint"); |
| } |
| } |
| |
| void SkLuaCanvas::drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src, |
| const SkRect& dst, const SkPaint* paint) { |
| AUTO_LUA("drawBitmapRectToRect"); |
| if (paint) { |
| lua.pushPaint(*paint, "paint"); |
| } |
| } |
| |
| void SkLuaCanvas::drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m, |
| const SkPaint* paint) { |
| AUTO_LUA("drawBitmapMatrix"); |
| if (paint) { |
| lua.pushPaint(*paint, "paint"); |
| } |
| } |
| |
| void SkLuaCanvas::drawSprite(const SkBitmap& bitmap, int x, int y, |
| const SkPaint* paint) { |
| AUTO_LUA("drawSprite"); |
| if (paint) { |
| lua.pushPaint(*paint, "paint"); |
| } |
| } |
| |
| void SkLuaCanvas::drawText(const void* text, size_t byteLength, SkScalar x, |
| SkScalar y, const SkPaint& paint) { |
| AUTO_LUA("drawText"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawPosText(const void* text, size_t byteLength, |
| const SkPoint pos[], const SkPaint& paint) { |
| AUTO_LUA("drawPosText"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawPosTextH(const void* text, size_t byteLength, |
| const SkScalar xpos[], SkScalar constY, |
| const SkPaint& paint) { |
| AUTO_LUA("drawPosTextH"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawTextOnPath(const void* text, size_t byteLength, |
| const SkPath& path, const SkMatrix* matrix, |
| const SkPaint& paint) { |
| AUTO_LUA("drawTextOnPath"); |
| lua.pushPath(path, "path"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawPicture(SkPicture& picture) { |
| AUTO_LUA("drawPicture"); |
| // call through so we can see the nested picture ops |
| this->INHERITED::drawPicture(picture); |
| } |
| |
| void SkLuaCanvas::drawVertices(VertexMode vmode, int vertexCount, |
| const SkPoint vertices[], const SkPoint texs[], |
| const SkColor colors[], SkXfermode* xmode, |
| const uint16_t indices[], int indexCount, |
| const SkPaint& paint) { |
| AUTO_LUA("drawVertices"); |
| lua.pushPaint(paint, "paint"); |
| } |
| |
| void SkLuaCanvas::drawData(const void* data, size_t length) { |
| AUTO_LUA("drawData"); |
| } |