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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkJSONCanvas_DEFINED
#define SkJSONCanvas_DEFINED
#include "SkCanvas.h"
#include "SkStream.h"
#include "SkJSONCPP.h"
#define SKJSONCANVAS_VERSION "version"
#define SKJSONCANVAS_COMMANDS "commands"
#define SKJSONCANVAS_COMMAND "command"
#define SKJSONCANVAS_COMMAND_TRANSLATE "Translate"
#define SKJSONCANVAS_COMMAND_SCALE "Scale"
#define SKJSONCANVAS_COMMAND_MATRIX "Matrix"
#define SKJSONCANVAS_COMMAND_PAINT "Paint"
#define SKJSONCANVAS_COMMAND_RECT "Rect"
#define SKJSONCANVAS_COMMAND_OVAL "Oval"
#define SKJSONCANVAS_COMMAND_RRECT "RRect"
#define SKJSONCANVAS_COMMAND_DRRECT "DRRect"
#define SKJSONCANVAS_COMMAND_POINTS "Points"
#define SKJSONCANVAS_COMMAND_VERTICES "Vertices"
#define SKJSONCANVAS_COMMAND_ATLAS "Atlas"
#define SKJSONCANVAS_COMMAND_PATH "Path"
#define SKJSONCANVAS_COMMAND_IMAGE "Image"
#define SKJSONCANVAS_COMMAND_IMAGERECT "ImageRect"
#define SKJSONCANVAS_COMMAND_IMAGENINE "ImageNine"
#define SKJSONCANVAS_COMMAND_BITMAP "Bitmap"
#define SKJSONCANVAS_COMMAND_BITMAPRECT "BitmapRect"
#define SKJSONCANVAS_COMMAND_BITMAPNINE "BitmapNine"
#define SKJSONCANVAS_COMMAND_TEXT "Text"
#define SKJSONCANVAS_COMMAND_POSTEXT "PosText"
#define SKJSONCANVAS_COMMAND_POSTEXTH "PosTextH"
#define SKJSONCANVAS_COMMAND_TEXTONPATH "TextOnPath"
#define SKJSONCANVAS_COMMAND_TEXTBLOB "TextBlob"
#define SKJSONCANVAS_COMMAND_PATCH "Patch"
#define SKJSONCANVAS_COMMAND_DRAWABLE "Drawable"
#define SKJSONCANVAS_COMMAND_CLIPRECT "ClipRect"
#define SKJSONCANVAS_COMMAND_CLIPRRECT "ClipRRect"
#define SKJSONCANVAS_COMMAND_CLIPPATH "ClipPath"
#define SKJSONCANVAS_COMMAND_CLIPREGION "ClipRegion"
#define SKJSONCANVAS_COMMAND_SAVE "Save"
#define SKJSONCANVAS_COMMAND_RESTORE "Restore"
#define SKJSONCANVAS_COMMAND_SAVELAYER "SaveLayer"
#define SKJSONCANVAS_ATTRIBUTE_MATRIX "matrix"
#define SKJSONCANVAS_ATTRIBUTE_COORDS "coords"
#define SKJSONCANVAS_ATTRIBUTE_BOUNDS "bounds"
#define SKJSONCANVAS_ATTRIBUTE_PAINT "paint"
#define SKJSONCANVAS_ATTRIBUTE_OUTER "outer"
#define SKJSONCANVAS_ATTRIBUTE_INNER "inner"
#define SKJSONCANVAS_ATTRIBUTE_MODE "mode"
#define SKJSONCANVAS_ATTRIBUTE_POINTS "points"
#define SKJSONCANVAS_ATTRIBUTE_PATH "path"
#define SKJSONCANVAS_ATTRIBUTE_TEXT "text"
#define SKJSONCANVAS_ATTRIBUTE_COLOR "color"
#define SKJSONCANVAS_ATTRIBUTE_ALPHA "alpha"
#define SKJSONCANVAS_ATTRIBUTE_STYLE "style"
#define SKJSONCANVAS_ATTRIBUTE_STROKEWIDTH "strokeWidth"
#define SKJSONCANVAS_ATTRIBUTE_STROKEMITER "strokeMiter"
#define SKJSONCANVAS_ATTRIBUTE_CAP "cap"
#define SKJSONCANVAS_ATTRIBUTE_ANTIALIAS "antiAlias"
#define SKJSONCANVAS_ATTRIBUTE_REGION "region"
#define SKJSONCANVAS_ATTRIBUTE_REGIONOP "op"
#define SKJSONCANVAS_ATTRIBUTE_EDGESTYLE "edgeStyle"
#define SKJSONCANVAS_ATTRIBUTE_DEVICEREGION "deviceRegion"
#define SKJSONCANVAS_ATTRIBUTE_BLUR "blur"
#define SKJSONCANVAS_ATTRIBUTE_SIGMA "sigma"
#define SKJSONCANVAS_ATTRIBUTE_QUALITY "quality"
#define SKJSONCANVAS_ATTRIBUTE_TEXTALIGN "textAlign"
#define SKJSONCANVAS_ATTRIBUTE_TEXTSIZE "textSize"
#define SKJSONCANVAS_ATTRIBUTE_TEXTSCALEX "textScaleX"
#define SKJSONCANVAS_ATTRIBUTE_TEXTSKEWX "textSkewX"
#define SKJSONCANVAS_ATTRIBUTE_DASHING "dashing"
#define SKJSONCANVAS_ATTRIBUTE_INTERVALS "intervals"
#define SKJSONCANVAS_ATTRIBUTE_PHASE "phase"
#define SKJSONCANVAS_ATTRIBUTE_FILLTYPE "fillType"
#define SKJSONCANVAS_ATTRIBUTE_VERBS "verbs"
#define SKJSONCANVAS_ATTRIBUTE_NAME "name"
#define SKJSONCANVAS_ATTRIBUTE_BYTES "bytes"
#define SKJSONCANVAS_ATTRIBUTE_SHADER "shader"
#define SKJSONCANVAS_ATTRIBUTE_PATHEFFECT "pathEffect"
#define SKJSONCANVAS_ATTRIBUTE_MASKFILTER "maskFilter"
#define SKJSONCANVAS_ATTRIBUTE_XFERMODE "xfermode"
#define SKJSONCANVAS_ATTRIBUTE_BACKDROP "backdrop"
#define SKJSONCANVAS_ATTRIBUTE_COLORFILTER "colorfilter"
#define SKJSONCANVAS_ATTRIBUTE_IMAGEFILTER "imagefilter"
#define SKJSONCANVAS_ATTRIBUTE_IMAGE "image"
#define SKJSONCANVAS_ATTRIBUTE_BITMAP "bitmap"
#define SKJSONCANVAS_ATTRIBUTE_SRC "src"
#define SKJSONCANVAS_ATTRIBUTE_DST "dst"
#define SKJSONCANVAS_ATTRIBUTE_STRICT "strict"
#define SKJSONCANVAS_ATTRIBUTE_DESCRIPTION "description"
#define SKJSONCANVAS_ATTRIBUTE_X "x"
#define SKJSONCANVAS_ATTRIBUTE_Y "y"
#define SKJSONCANVAS_ATTRIBUTE_RUNS "runs"
#define SKJSONCANVAS_ATTRIBUTE_POSITIONS "positions"
#define SKJSONCANVAS_ATTRIBUTE_GLYPHS "glyphs"
#define SKJSONCANVAS_ATTRIBUTE_FONT "font"
#define SKJSONCANVAS_ATTRIBUTE_TYPEFACE "typeface"
#define SKJSONCANVAS_VERB_MOVE "move"
#define SKJSONCANVAS_VERB_LINE "line"
#define SKJSONCANVAS_VERB_QUAD "quad"
#define SKJSONCANVAS_VERB_CUBIC "cubic"
#define SKJSONCANVAS_VERB_CONIC "conic"
#define SKJSONCANVAS_VERB_CLOSE "close"
#define SKJSONCANVAS_STYLE_FILL "fill"
#define SKJSONCANVAS_STYLE_STROKE "stroke"
#define SKJSONCANVAS_STYLE_STROKEANDFILL "strokeAndFill"
#define SKJSONCANVAS_POINTMODE_POINTS "points"
#define SKJSONCANVAS_POINTMODE_LINES "lines"
#define SKJSONCANVAS_POINTMODE_POLYGON "polygon"
#define SKJSONCANVAS_REGIONOP_DIFFERENCE "difference"
#define SKJSONCANVAS_REGIONOP_INTERSECT "intersect"
#define SKJSONCANVAS_REGIONOP_UNION "union"
#define SKJSONCANVAS_REGIONOP_XOR "xor"
#define SKJSONCANVAS_REGIONOP_REVERSE_DIFFERENCE "reverseDifference"
#define SKJSONCANVAS_REGIONOP_REPLACE "replace"
#define SKJSONCANVAS_BLURSTYLE_NORMAL "normal"
#define SKJSONCANVAS_BLURSTYLE_SOLID "solid"
#define SKJSONCANVAS_BLURSTYLE_OUTER "outer"
#define SKJSONCANVAS_BLURSTYLE_INNER "inner"
#define SKJSONCANVAS_BLURQUALITY_LOW "low"
#define SKJSONCANVAS_BLURQUALITY_HIGH "high"
#define SKJSONCANVAS_ALIGN_LEFT "left"
#define SKJSONCANVAS_ALIGN_CENTER "center"
#define SKJSONCANVAS_ALIGN_RIGHT "right"
#define SKJSONCANVAS_FILLTYPE_WINDING "winding"
#define SKJSONCANVAS_FILLTYPE_EVENODD "evenOdd"
#define SKJSONCANVAS_FILLTYPE_INVERSEWINDING "inverseWinding"
#define SKJSONCANVAS_FILLTYPE_INVERSEEVENODD "inverseEvenOdd"
#define SKJSONCANVAS_CAP_BUTT "butt"
#define SKJSONCANVAS_CAP_ROUND "round"
#define SKJSONCANVAS_CAP_SQUARE "square"
#define SKJSONCANVAS_COLORTYPE_ARGB4444 "ARGB4444"
#define SKJSONCANVAS_COLORTYPE_RGBA8888 "RGBA8888"
#define SKJSONCANVAS_COLORTYPE_BGRA8888 "BGRA8888"
#define SKJSONCANVAS_COLORTYPE_565 "565"
#define SKJSONCANVAS_COLORTYPE_GRAY8 "Gray8"
#define SKJSONCANVAS_COLORTYPE_INDEX8 "Index8"
#define SKJSONCANVAS_COLORTYPE_ALPHA8 "Alpha8"
#define SKJSONCANVAS_ALPHATYPE_OPAQUE "opaque"
#define SKJSONCANVAS_ALPHATYPE_PREMUL "premul"
#define SKJSONCANVAS_ALPHATYPE_UNPREMUL "unpremul"
/*
* Implementation of SkCanvas which writes JSON when drawn to. The JSON describes all of the draw
* commands issued to the canvas, and can later be turned back into draw commands using
* SkJSONRenderer. Be sure to call finish() when you are done drawing.
*/
class SkJSONCanvas : public SkCanvas {
public:
/* Create a canvas which writes to the specified output stream. */
SkJSONCanvas(int width, int height, SkWStream& out, bool sendBinaries = false);
/* Complete the JSON document. */
void finish();
static Json::Value MakeMatrix(const SkMatrix& matrix);
static Json::Value MakeIRect(const SkIRect& irect);
// overridden SkCanvas API
void didConcat(const SkMatrix&) override;
void didSetMatrix(const SkMatrix&) override;
void onDrawPaint(const SkPaint&) override;
void onDrawRect(const SkRect&, const SkPaint&) override;
void onDrawOval(const SkRect&, const SkPaint&) override;
void onDrawRRect(const SkRRect&, const SkPaint&) override;
void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
void onDrawPoints(SkCanvas::PointMode, size_t count, const SkPoint pts[],
const SkPaint&) override;
void onDrawVertices(SkCanvas::VertexMode, int vertexCount, const SkPoint vertices[],
const SkPoint texs[], const SkColor colors[], SkXfermode*,
const uint16_t indices[], int indexCount, const SkPaint&) override;
void onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
int count, SkXfermode::Mode, const SkRect* cull, const SkPaint*) override;
void onDrawPath(const SkPath&, const SkPaint&) override;
void onDrawImage(const SkImage*, SkScalar dx, SkScalar dy, const SkPaint*) override;
void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*,
SrcRectConstraint) override;
void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawBitmap(const SkBitmap&, SkScalar dx, SkScalar dy, const SkPaint*) override;
void onDrawBitmapRect(const SkBitmap&, const SkRect*, const SkRect&, const SkPaint*,
SkCanvas::SrcRectConstraint) override;
void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
const SkPaint*) override;
void onDrawText(const void* text, size_t byteLength, SkScalar x,
SkScalar y, const SkPaint& paint) override;
void onDrawPosText(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint& paint) override;
void onDrawPosTextH(const void* text, size_t byteLength,
const SkScalar xpos[], SkScalar constY,
const SkPaint& paint) override;
void onDrawTextOnPath(const void* text, size_t byteLength,
const SkPath& path, const SkMatrix* matrix,
const SkPaint& paint) override;
void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) override;
void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
const SkPoint texCoords[4], SkXfermode* xmode, const SkPaint& paint) override;
void onDrawDrawable(SkDrawable*, const SkMatrix*) override;
void onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) override;
void onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) override;
void onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) override;
void onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) override;
void willSave() override;
void willRestore() override;
SkCanvas::SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec& rec) override;
private:
// Helpers to turn values into JSON, these could probably be static
Json::Value makePoint(const SkPoint& point);
Json::Value makePoint(SkScalar x, SkScalar y);
Json::Value makeRect(const SkRect& rect);
Json::Value makeRRect(const SkRRect& rrect);
Json::Value makePath(const SkPath& path);
Json::Value makeRegion(const SkRegion& region);
Json::Value makePaint(const SkPaint& paint);
Json::Value makeRegionOp(SkRegion::Op op);
Json::Value makeEdgeStyle(SkCanvas::ClipEdgeStyle edgeStyle);
Json::Value makePointMode(SkCanvas::PointMode mode);
void updateMatrix();
SkWStream& fOut;
Json::Value fRoot;
Json::Value fCommands;
bool fSendBinaries;
typedef SkCanvas INHERITED;
};
#endif
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