Initial support for turning Skia draws into a JSON document and vice versa.
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1636563002 Committed: https://skia.googlesource.com/skia/+/3cb582f688822461efa5a034e18008bf2f11e4f8 Review URL: https://codereview.chromium.org/1636563002
This commit is contained in:
ethannicholas
Commit bot
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978d08a4a9
26
gyp/json.gyp
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26
gyp/json.gyp
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# Copyright 2015 Google Inc.
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#
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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{
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'targets': [
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{
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'target_name': 'json',
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'product_name': 'skia_json',
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'type': 'static_library',
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'standalone_static_library': 1,
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'dependencies': [
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'core.gyp:core',
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'jsoncpp.gyp:jsoncpp',
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],
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'include_dirs': [
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'../include/utils',
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'../src/core',
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],
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'sources': [
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'../tools/json/SkJSONCanvas.cpp',
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'../tools/json/SkJSONRenderer.cpp',
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],
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},
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],
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}
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@ -82,6 +82,7 @@
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[ 'skia_build_server', {
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[ 'skia_build_server', {
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'dependencies': [
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'dependencies': [
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'skiaserve.gyp:skiaserve',
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'skiaserve.gyp:skiaserve',
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'json.gyp:json',
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],
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],
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}],
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}],
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],
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],
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428
tools/json/SkJSONCanvas.cpp
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428
tools/json/SkJSONCanvas.cpp
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/*
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* Copyright 2016 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkJSONCanvas.h"
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#include "SkPath.h"
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#include "SkRRect.h"
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#include "stdio.h"
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#include "stdlib.h"
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SkJSONCanvas::SkJSONCanvas(int width, int height, SkWStream& out)
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: INHERITED(width, height)
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, fOut(out)
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, fFirstCommand(true) {
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fOut.writeText("{\"" SKJSONCANVAS_VERSION "\":1, \"" SKJSONCANVAS_COMMANDS
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"\":[");
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}
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void SkJSONCanvas::finish() {
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fOut.writeText("]}");
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}
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void SkJSONCanvas::writef(const char* format, ...) {
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va_list args;
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va_start(args, format);
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SkString s;
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s.appendVAList(format, args);
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fOut.writeText(s.c_str());
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}
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void SkJSONCanvas::open(const char* name) {
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if (fFirstCommand) {
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fFirstCommand = false;
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}
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else {
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fOut.writeText(",");
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}
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this->writef("{\"" SKJSONCANVAS_COMMAND "\":\"%s\"", name);
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}
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void SkJSONCanvas::close() {
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fOut.writeText("}");
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}
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void SkJSONCanvas::writeString(const char* name, const char* text) {
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this->writeString(name, text, strlen(text));
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}
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void SkJSONCanvas::writeString(const char* name, const void* text, size_t length) {
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// TODO: escaping
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this->writef(",\"%s\":\"", name);
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fOut.write(text, length);
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fOut.writeText("\"");
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}
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void SkJSONCanvas::writePoint(const char* name, const SkPoint& point) {
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this->writef(",\"%s\":[%f, %f]", name, point.x(), point.y());
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}
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void SkJSONCanvas::writeRect(const char* name, const SkRect& rect) {
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this->writef(",\"%s\":[%f, %f, %f, %f]", name, rect.left(), rect.top(), rect.right(),
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rect.bottom());
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}
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void SkJSONCanvas::writeRRect(const char* name, const SkRRect& rrect) {
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SkRect rect = rrect.rect();
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SkVector corner1 = rrect.radii(SkRRect::kUpperLeft_Corner);
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SkVector corner2 = rrect.radii(SkRRect::kUpperRight_Corner);
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SkVector corner3 = rrect.radii(SkRRect::kLowerLeft_Corner);
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SkVector corner4 = rrect.radii(SkRRect::kLowerRight_Corner);
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this->writef(",\"%s\":[[%f, %f, %f, %f],[%f, %f],[%f, %f],[%f, %f],[%f, %f]]", name,
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rect.left(), rect.top(), rect.right(), rect.bottom(), corner1.x(), corner1.y(),
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corner2.x(), corner2.y(), corner3.x(), corner3.y(), corner4.x(), corner4.y());
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}
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void SkJSONCanvas::writePath(const char* name, const SkPath& path) {
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SkString text("[");
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SkPath::Iter iter(path, false);
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SkPoint pts[4];
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bool first = true;
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SkPath::Verb verb;
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while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
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if (first) {
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first = false;
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}
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else {
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text.append(",");
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}
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switch (verb) {
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case SkPath::kLine_Verb:
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text.appendf("{\"" SKJSONCANVAS_VERB_LINE "\":[%f,%f]}", pts[1].x(), pts[1].y());
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break;
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case SkPath::kQuad_Verb:
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text.appendf("{\"" SKJSONCANVAS_VERB_QUAD "\":[[%f,%f],[%f,%f]]}", pts[1].x(),
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pts[1].y(), pts[2].x(), pts[2].y());
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break;
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case SkPath::kCubic_Verb:
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text.appendf("{\"" SKJSONCANVAS_VERB_CUBIC "\":[[%f,%f],[%f,%f],[%f,%f]]}",
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pts[1].x(), pts[1].y(), pts[2].x(), pts[2].y(), pts[3].x(),
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pts[3].y());
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break;
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case SkPath::kConic_Verb:
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text.appendf("{\"" SKJSONCANVAS_VERB_CONIC "\":[[%f,%f],[%f,%f],%f]}", pts[1].x(),
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pts[1].y(), pts[2].x(), pts[2].y(), iter.conicWeight());
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break;
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case SkPath::kMove_Verb:
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text.appendf("{\"" SKJSONCANVAS_VERB_MOVE "\":[%f,%f]}", pts[0].x(), pts[0].y());
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break;
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case SkPath::kClose_Verb:
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text.appendf("\"" SKJSONCANVAS_VERB_CLOSE "\"");
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break;
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case SkPath::kDone_Verb:
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break;
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}
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}
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text.appendf("]");
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this->writef(",\"" SKJSONCANVAS_ATTRIBUTE_PATH "\":%s", text.c_str());
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}
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void SkJSONCanvas::writeRegion(const char* name, const SkRegion& region) {
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this->writef(",\"%s\":\"<unimplemented>\"", name);
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}
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void SkJSONCanvas::writePaint(const SkPaint& paint) {
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this->writef(",\"" SKJSONCANVAS_ATTRIBUTE_PAINT "\":{");
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SkColor color = paint.getColor();
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bool first = true;
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if (color != SK_ColorBLACK) {
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this->writef("\"" SKJSONCANVAS_ATTRIBUTE_COLOR "\":[%d,%d,%d,%d]", SkColorGetA(color),
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SkColorGetR(color), SkColorGetG(color), SkColorGetB(color));
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first = false;
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}
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SkPaint::Style style = paint.getStyle();
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if (style != SkPaint::kFill_Style) {
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if (first) {
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first = false;
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}
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else {
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fOut.writeText(",");
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}
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switch (style) {
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case SkPaint::kStroke_Style:
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fOut.writeText("\"" SKJSONCANVAS_ATTRIBUTE_STYLE "\":\""
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SKJSONCANVAS_STYLE_STROKE "\"");
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break;
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case SkPaint::kStrokeAndFill_Style:
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fOut.writeText("\"" SKJSONCANVAS_ATTRIBUTE_STYLE "\":\""
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SKJSONCANVAS_STYLE_STROKEANDFILL "\"");
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break;
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default: SkASSERT(false);
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}
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}
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SkScalar strokeWidth = paint.getStrokeWidth();
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if (strokeWidth != 0.0f) {
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if (first) {
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first = false;
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}
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else {
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fOut.writeText(",");
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}
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this->writef("\"" SKJSONCANVAS_ATTRIBUTE_STROKEWIDTH "\":%f", strokeWidth);
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}
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if (paint.isAntiAlias()) {
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if (first) {
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first = false;
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}
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else {
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fOut.writeText(",");
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}
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fOut.writeText("\"" SKJSONCANVAS_ATTRIBUTE_ANTIALIAS "\":true");
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}
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fOut.writeText("}");
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}
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void SkJSONCanvas::writeMatrix(const char* name, const SkMatrix& matrix) {
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this->writef(",\"%s\":[[%f,%f,%f],[%f,%f,%f],[%f,%f,%f]]", name,
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matrix[0], matrix[1], matrix[2],
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matrix[3], matrix[4], matrix[5],
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matrix[6], matrix[7], matrix[8]);
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}
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void SkJSONCanvas::writeRegionOp(const char* name, SkRegion::Op op) {
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this->writef(",\"%s\":\"", name);
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switch (op) {
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case SkRegion::kDifference_Op:
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fOut.writeText(SKJSONCANVAS_REGIONOP_DIFFERENCE);
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break;
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case SkRegion::kIntersect_Op:
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fOut.writeText(SKJSONCANVAS_REGIONOP_INTERSECT);
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break;
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case SkRegion::kUnion_Op:
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fOut.writeText(SKJSONCANVAS_REGIONOP_UNION);
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break;
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case SkRegion::kXOR_Op:
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fOut.writeText(SKJSONCANVAS_REGIONOP_XOR);
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break;
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case SkRegion::kReverseDifference_Op:
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fOut.writeText(SKJSONCANVAS_REGIONOP_REVERSE_DIFFERENCE);
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break;
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case SkRegion::kReplace_Op:
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fOut.writeText(SKJSONCANVAS_REGIONOP_REPLACE);
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break;
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default:
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SkASSERT(false);
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};
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fOut.writeText("\"");
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}
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void SkJSONCanvas::writeEdgeStyle(const char* name, SkCanvas::ClipEdgeStyle edgeStyle) {
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this->writef(",\"%s\":\"", name);
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switch (edgeStyle) {
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case SkCanvas::kHard_ClipEdgeStyle: fOut.writeText(SKJSONCANVAS_EDGESTYLE_HARD); break;
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case SkCanvas::kSoft_ClipEdgeStyle: fOut.writeText(SKJSONCANVAS_EDGESTYLE_SOFT); break;
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default: SkASSERT(false);
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};
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fOut.writeText("\"");
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}
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void SkJSONCanvas::writePointMode(const char* name, SkCanvas::PointMode mode) {
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this->writef(",\"%s\":\"", name);
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switch (mode) {
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case SkCanvas::kPoints_PointMode: fOut.writeText(SKJSONCANVAS_POINTMODE_POINTS); break;
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case SkCanvas::kLines_PointMode: fOut.writeText(SKJSONCANVAS_POINTMODE_LINES); break;
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case SkCanvas::kPolygon_PointMode: fOut.writeText(SKJSONCANVAS_POINTMODE_POLYGON); break;
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default: SkASSERT(false);
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};
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fOut.writeText("\"");
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}
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void SkJSONCanvas::updateMatrix() {
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const SkMatrix& matrix = this->getTotalMatrix();
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if (matrix != fLastMatrix) {
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this->open(SKJSONCANVAS_COMMAND_MATRIX);
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this->writeMatrix(SKJSONCANVAS_ATTRIBUTE_MATRIX, matrix);
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fLastMatrix = matrix;
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this->close();
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}
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}
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void SkJSONCanvas::onDrawPaint(const SkPaint& paint) {
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this->open(SKJSONCANVAS_COMMAND_PAINT);
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this->writePaint(paint);
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this->close();
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}
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void SkJSONCanvas::onDrawRect(const SkRect& rect, const SkPaint& paint) {
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this->updateMatrix();
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this->open(SKJSONCANVAS_COMMAND_RECT);
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this->writeRect(SKJSONCANVAS_ATTRIBUTE_COORDS, rect);
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this->writePaint(paint);
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this->close();
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}
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void SkJSONCanvas::onDrawOval(const SkRect& rect, const SkPaint& paint) {
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this->updateMatrix();
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this->open(SKJSONCANVAS_COMMAND_OVAL);
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this->writeRect(SKJSONCANVAS_ATTRIBUTE_COORDS, rect);
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this->writePaint(paint);
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this->close();
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}
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void SkJSONCanvas::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) {
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this->updateMatrix();
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this->open(SKJSONCANVAS_COMMAND_RRECT);
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this->writeRRect(SKJSONCANVAS_ATTRIBUTE_COORDS, rrect);
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this->writePaint(paint);
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this->close();}
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void SkJSONCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner, const SkPaint& paint) {
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this->updateMatrix();
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this->open(SKJSONCANVAS_COMMAND_DRRECT);
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this->writeRRect(SKJSONCANVAS_ATTRIBUTE_OUTER, outer);
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this->writeRRect(SKJSONCANVAS_ATTRIBUTE_INNER, inner);
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this->writePaint(paint);
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this->close();
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}
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void SkJSONCanvas::onDrawPoints(SkCanvas::PointMode mode, size_t count, const SkPoint pts[],
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const SkPaint& paint) {
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this->updateMatrix();
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this->open(SKJSONCANVAS_COMMAND_POINTS);
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this->writePointMode(SKJSONCANVAS_ATTRIBUTE_MODE, mode);
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fOut.writeText(",\"" SKJSONCANVAS_ATTRIBUTE_POINTS "\":[");
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for (size_t i = 0; i < count; i++) {
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if (i != 0) {
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fOut.writeText(",");
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}
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this->writef("[%f,%f]", pts[i].x(), pts[i].y());
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}
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fOut.writeText("]");
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this->writePaint(paint);
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this->close();
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}
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void SkJSONCanvas::onDrawVertices(SkCanvas::VertexMode, int vertexCount, const SkPoint vertices[],
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const SkPoint texs[], const SkColor colors[], SkXfermode*,
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const uint16_t indices[], int indexCount, const SkPaint&) {
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SkDebugf("unsupported: drawVertices\n");
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||||||
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}
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void SkJSONCanvas::onDrawAtlas(const SkImage*, const SkRSXform[], const SkRect[], const SkColor[],
|
||||||
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int count, SkXfermode::Mode, const SkRect* cull, const SkPaint*) {
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||||||
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SkDebugf("unsupported: drawAtlas\n");
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||||||
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}
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||||||
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void SkJSONCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) {
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this->updateMatrix();
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this->open(SKJSONCANVAS_COMMAND_PATH);
|
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this->writePath(SKJSONCANVAS_ATTRIBUTE_PATH, path);
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||||||
|
this->writePaint(paint);
|
||||||
|
this->close();}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawImage(const SkImage*, SkScalar dx, SkScalar dy, const SkPaint*) {
|
||||||
|
SkDebugf("unsupported: drawImage\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*,
|
||||||
|
SkCanvas::SrcRectConstraint) {
|
||||||
|
SkDebugf("unsupported: drawImageRect\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
|
||||||
|
const SkPaint*) {
|
||||||
|
SkDebugf("unsupported: drawImageNine\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawBitmap(const SkBitmap&, SkScalar dx, SkScalar dy, const SkPaint*) {
|
||||||
|
SkDebugf("unsupported: drawBitmap\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawBitmapRect(const SkBitmap&, const SkRect*, const SkRect&, const SkPaint*,
|
||||||
|
SkCanvas::SrcRectConstraint) {
|
||||||
|
SkDebugf("unsupported: drawBitmapRect\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
|
||||||
|
const SkPaint*) {
|
||||||
|
SkDebugf("unsupported: drawBitmapNine\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x,
|
||||||
|
SkScalar y, const SkPaint& paint) {
|
||||||
|
this->updateMatrix();
|
||||||
|
this->open(SKJSONCANVAS_COMMAND_TEXT);
|
||||||
|
this->writeString(SKJSONCANVAS_ATTRIBUTE_TEXT, text, byteLength);
|
||||||
|
this->writePoint(SKJSONCANVAS_ATTRIBUTE_COORDS, { x, y });
|
||||||
|
this->writePaint(paint);
|
||||||
|
this->close();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawPosText(const void* text, size_t byteLength,
|
||||||
|
const SkPoint pos[], const SkPaint& paint) {
|
||||||
|
SkDebugf("unsupported: drawPosText\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawPosTextH(const void* text, size_t byteLength,
|
||||||
|
const SkScalar xpos[], SkScalar constY,
|
||||||
|
const SkPaint& paint) {
|
||||||
|
SkDebugf("unsupported: drawPosTextH\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawTextOnPath(const void* text, size_t byteLength,
|
||||||
|
const SkPath& path, const SkMatrix* matrix,
|
||||||
|
const SkPaint& paint) {
|
||||||
|
SkDebugf("unsupported: drawTextOnPath\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
|
||||||
|
const SkPaint& paint) {
|
||||||
|
SkDebugf("unsupported: drawTextBlob\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
|
||||||
|
const SkPoint texCoords[4], SkXfermode* xmode,
|
||||||
|
const SkPaint& paint) {
|
||||||
|
SkDebugf("unsupported: drawPatch\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onDrawDrawable(SkDrawable*, const SkMatrix*) {
|
||||||
|
SkDebugf("unsupported: drawDrawable\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
|
||||||
|
this->updateMatrix();
|
||||||
|
this->open(SKJSONCANVAS_COMMAND_CLIPRECT);
|
||||||
|
this->writeRect(SKJSONCANVAS_ATTRIBUTE_COORDS, rect);
|
||||||
|
this->writeRegionOp(SKJSONCANVAS_ATTRIBUTE_REGIONOP, op);
|
||||||
|
this->writeEdgeStyle(SKJSONCANVAS_ATTRIBUTE_EDGESTYLE, edgeStyle);
|
||||||
|
this->close();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
|
||||||
|
this->updateMatrix();
|
||||||
|
this->open(SKJSONCANVAS_COMMAND_CLIPRRECT);
|
||||||
|
this->writeRRect(SKJSONCANVAS_ATTRIBUTE_COORDS, rrect);
|
||||||
|
this->writeRegionOp(SKJSONCANVAS_ATTRIBUTE_REGIONOP, op);
|
||||||
|
this->writeEdgeStyle(SKJSONCANVAS_ATTRIBUTE_EDGESTYLE, edgeStyle);
|
||||||
|
this->close();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle edgeStyle) {
|
||||||
|
updateMatrix();
|
||||||
|
this->open(SKJSONCANVAS_COMMAND_CLIPPATH);
|
||||||
|
this->writePath(SKJSONCANVAS_ATTRIBUTE_PATH, path);
|
||||||
|
this->writeRegionOp(SKJSONCANVAS_ATTRIBUTE_REGIONOP, op);
|
||||||
|
this->writeEdgeStyle(SKJSONCANVAS_ATTRIBUTE_EDGESTYLE, edgeStyle);
|
||||||
|
this->close();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
|
||||||
|
this->open(SKJSONCANVAS_COMMAND_CLIPREGION);
|
||||||
|
this->writeRegion(SKJSONCANVAS_ATTRIBUTE_DEVICEREGION, deviceRgn);
|
||||||
|
this->writeRegionOp(SKJSONCANVAS_ATTRIBUTE_REGIONOP, op);
|
||||||
|
this->close();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::willSave() {
|
||||||
|
this->open(SKJSONCANVAS_COMMAND_SAVE);
|
||||||
|
this->close();
|
||||||
|
}
|
||||||
|
|
||||||
|
void SkJSONCanvas::willRestore() {
|
||||||
|
this->open(SKJSONCANVAS_COMMAND_RESTORE);
|
||||||
|
this->close();
|
||||||
|
}
|
||||||
217
tools/json/SkJSONCanvas.h
Normal file
217
tools/json/SkJSONCanvas.h
Normal file
@ -0,0 +1,217 @@
|
|||||||
|
/*
|
||||||
|
* 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"
|
||||||
|
|
||||||
|
#define SKJSONCANVAS_VERSION "version"
|
||||||
|
#define SKJSONCANVAS_COMMANDS "commands"
|
||||||
|
#define SKJSONCANVAS_COMMAND "command"
|
||||||
|
|
||||||
|
#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_ATTRIBUTE_MATRIX "matrix"
|
||||||
|
#define SKJSONCANVAS_ATTRIBUTE_COORDS "coords"
|
||||||
|
#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_STYLE "style"
|
||||||
|
#define SKJSONCANVAS_ATTRIBUTE_STROKEWIDTH "strokeWidth"
|
||||||
|
#define SKJSONCANVAS_ATTRIBUTE_ANTIALIAS "antiAlias"
|
||||||
|
#define SKJSONCANVAS_ATTRIBUTE_REGIONOP "op"
|
||||||
|
#define SKJSONCANVAS_ATTRIBUTE_EDGESTYLE "edgeStyle"
|
||||||
|
#define SKJSONCANVAS_ATTRIBUTE_DEVICEREGION "deviceRegion"
|
||||||
|
|
||||||
|
#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_EDGESTYLE_HARD "hard"
|
||||||
|
#define SKJSONCANVAS_EDGESTYLE_SOFT "soft"
|
||||||
|
|
||||||
|
#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"
|
||||||
|
|
||||||
|
/*
|
||||||
|
* 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);
|
||||||
|
|
||||||
|
/* Complete the JSON document. */
|
||||||
|
void finish();
|
||||||
|
|
||||||
|
// overridden SkCanvas API
|
||||||
|
|
||||||
|
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;
|
||||||
|
|
||||||
|
private:
|
||||||
|
void writef(const char* fmt, ...);
|
||||||
|
|
||||||
|
void open(const char* name);
|
||||||
|
|
||||||
|
void close();
|
||||||
|
|
||||||
|
void writeString(const char* name, const char* text);
|
||||||
|
|
||||||
|
void writeString(const char* name, const void* text, size_t length);
|
||||||
|
|
||||||
|
void writePoint(const char* name, const SkPoint& point);
|
||||||
|
|
||||||
|
void writeRect(const char* name, const SkRect& rect);
|
||||||
|
|
||||||
|
void writeRRect(const char* name, const SkRRect& rrect);
|
||||||
|
|
||||||
|
void writePath(const char* name, const SkPath& path);
|
||||||
|
|
||||||
|
void writeRegion(const char* name, const SkRegion& region);
|
||||||
|
|
||||||
|
void writePaint(const SkPaint& paint);
|
||||||
|
|
||||||
|
void writeRegionOp(const char* name, SkRegion::Op op);
|
||||||
|
|
||||||
|
void writeEdgeStyle(const char* name, SkCanvas::ClipEdgeStyle edgeStyle);
|
||||||
|
|
||||||
|
void writePointMode(const char* name, SkCanvas::PointMode mode);
|
||||||
|
|
||||||
|
void writeMatrix(const char* name, const SkMatrix& matrix);
|
||||||
|
|
||||||
|
void updateMatrix();
|
||||||
|
|
||||||
|
SkWStream& fOut;
|
||||||
|
SkMatrix fLastMatrix;
|
||||||
|
bool fFirstCommand;
|
||||||
|
|
||||||
|
typedef SkCanvas INHERITED;
|
||||||
|
};
|
||||||
|
|
||||||
|
#endif
|
||||||
289
tools/json/SkJSONRenderer.cpp
Normal file
289
tools/json/SkJSONRenderer.cpp
Normal file
@ -0,0 +1,289 @@
|
|||||||
|
/*
|
||||||
|
* Copyright 2016 Google Inc.
|
||||||
|
*
|
||||||
|
* Use of this source code is governed by a BSD-style license that can be
|
||||||
|
* found in the LICENSE file.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include "SkJSONRenderer.h"
|
||||||
|
#include "SkJSONCanvas.h"
|
||||||
|
#include "SkJSONCPP.h"
|
||||||
|
#include "SkPath.h"
|
||||||
|
|
||||||
|
namespace SkJSONRenderer {
|
||||||
|
|
||||||
|
class Renderer {
|
||||||
|
public:
|
||||||
|
void getPaint(Json::Value& command, SkPaint* paint);
|
||||||
|
|
||||||
|
void getRect(Json::Value& command, const char* name, SkRect* rect);
|
||||||
|
|
||||||
|
void getRRect(Json::Value& command, const char* name, SkRRect* rrect);
|
||||||
|
|
||||||
|
void processCommand(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processMatrix(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processSave(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processRestore(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processPaint(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processRect(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processRRect(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processOval(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processPath(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processText(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processPoints(Json::Value& command, SkCanvas* target);
|
||||||
|
|
||||||
|
void processClipRect(Json::Value& command, SkCanvas* target);
|
||||||
|
};
|
||||||
|
|
||||||
|
void Renderer::processCommand(Json::Value& command, SkCanvas* target) {
|
||||||
|
const char* name = command[SKJSONCANVAS_COMMAND].asCString();
|
||||||
|
// TODO speed this up with a hash
|
||||||
|
if (!strcmp(name, SKJSONCANVAS_COMMAND_MATRIX)) {
|
||||||
|
this->processMatrix(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_SAVE)) {
|
||||||
|
this->processSave(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_RESTORE)) {
|
||||||
|
this->processRestore(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_PAINT)) {
|
||||||
|
this->processPaint(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_RECT)) {
|
||||||
|
this->processRect(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_RRECT)) {
|
||||||
|
this->processRRect(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_OVAL)) {
|
||||||
|
this->processOval(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_PATH)) {
|
||||||
|
this->processPath(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_TEXT)) {
|
||||||
|
this->processText(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_POINTS)) {
|
||||||
|
this->processPoints(command, target);
|
||||||
|
}
|
||||||
|
else if (!strcmp(name, SKJSONCANVAS_COMMAND_CLIPRECT)) {
|
||||||
|
this->processClipRect(command, target);
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
SkDebugf("unsupported JSON command: %s\n", name);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::getPaint(Json::Value& command, SkPaint* result) {
|
||||||
|
Json::Value jsonPaint = command[SKJSONCANVAS_ATTRIBUTE_PAINT];
|
||||||
|
if (jsonPaint.isMember(SKJSONCANVAS_ATTRIBUTE_COLOR)) {
|
||||||
|
Json::Value color = jsonPaint[SKJSONCANVAS_ATTRIBUTE_COLOR];
|
||||||
|
result->setColor(SkColorSetARGB(color[0].asInt(), color[1].asInt(), color[2].asInt(),
|
||||||
|
color[3].asInt()));
|
||||||
|
}
|
||||||
|
if (jsonPaint.isMember(SKJSONCANVAS_ATTRIBUTE_STYLE)) {
|
||||||
|
const char* style = jsonPaint[SKJSONCANVAS_ATTRIBUTE_STYLE].asCString();
|
||||||
|
if (!strcmp(style, SKJSONCANVAS_STYLE_FILL)) {
|
||||||
|
result->setStyle(SkPaint::kFill_Style);
|
||||||
|
}
|
||||||
|
else if (!strcmp(style, SKJSONCANVAS_STYLE_STROKE)) {
|
||||||
|
result->setStyle(SkPaint::kStroke_Style);
|
||||||
|
}
|
||||||
|
else if (!strcmp(style, SKJSONCANVAS_STYLE_STROKEANDFILL)) {
|
||||||
|
result->setStyle(SkPaint::kStrokeAndFill_Style);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
if (jsonPaint.isMember(SKJSONCANVAS_ATTRIBUTE_STROKEWIDTH)) {
|
||||||
|
float strokeWidth = jsonPaint[SKJSONCANVAS_ATTRIBUTE_STROKEWIDTH].asFloat();
|
||||||
|
result->setStrokeWidth(strokeWidth);
|
||||||
|
}
|
||||||
|
if (jsonPaint.isMember(SKJSONCANVAS_ATTRIBUTE_ANTIALIAS)) {
|
||||||
|
result->setAntiAlias(jsonPaint[SKJSONCANVAS_ATTRIBUTE_ANTIALIAS].asBool());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::getRect(Json::Value& command, const char* name, SkRect* result) {
|
||||||
|
Json::Value rect = command[name];
|
||||||
|
result->set(rect[0].asFloat(), rect[1].asFloat(), rect[2].asFloat(), rect[3].asFloat());
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::getRRect(Json::Value& command, const char* name, SkRRect* result) {
|
||||||
|
Json::Value rrect = command[name];
|
||||||
|
SkVector radii[4] = {
|
||||||
|
{ rrect[1][0].asFloat(), rrect[1][1].asFloat() },
|
||||||
|
{ rrect[2][0].asFloat(), rrect[2][1].asFloat() },
|
||||||
|
{ rrect[3][0].asFloat(), rrect[3][1].asFloat() },
|
||||||
|
{ rrect[4][0].asFloat(), rrect[4][1].asFloat() }
|
||||||
|
};
|
||||||
|
result->setRectRadii(SkRect::MakeLTRB(rrect[0][0].asFloat(), rrect[0][1].asFloat(),
|
||||||
|
rrect[0][2].asFloat(), rrect[0][3].asFloat()),
|
||||||
|
radii);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processMatrix(Json::Value& command, SkCanvas* target) {
|
||||||
|
Json::Value jsonMatrix = command[SKJSONCANVAS_ATTRIBUTE_MATRIX];
|
||||||
|
SkMatrix matrix;
|
||||||
|
SkScalar values[] = {
|
||||||
|
jsonMatrix[0][0].asFloat(), jsonMatrix[0][1].asFloat(), jsonMatrix[0][2].asFloat(),
|
||||||
|
jsonMatrix[1][0].asFloat(), jsonMatrix[1][1].asFloat(), jsonMatrix[1][2].asFloat(),
|
||||||
|
jsonMatrix[2][0].asFloat(), jsonMatrix[2][1].asFloat(), jsonMatrix[2][2].asFloat()
|
||||||
|
};
|
||||||
|
matrix.set9(values);
|
||||||
|
target->setMatrix(matrix);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processSave(Json::Value& command, SkCanvas* target) {
|
||||||
|
target->save();
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processRestore(Json::Value& command, SkCanvas* target) {
|
||||||
|
target->restore();
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processPaint(Json::Value& command, SkCanvas* target) {
|
||||||
|
SkPaint paint;
|
||||||
|
this->getPaint(command, &paint);
|
||||||
|
target->drawPaint(paint);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processRect(Json::Value& command, SkCanvas* target) {
|
||||||
|
SkRect rect;
|
||||||
|
this->getRect(command, SKJSONCANVAS_ATTRIBUTE_COORDS, &rect);
|
||||||
|
SkPaint paint;
|
||||||
|
this->getPaint(command, &paint);
|
||||||
|
target->drawRect(rect, paint);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processRRect(Json::Value& command, SkCanvas* target) {
|
||||||
|
SkRRect rrect;
|
||||||
|
this->getRRect(command, SKJSONCANVAS_ATTRIBUTE_COORDS, &rrect);
|
||||||
|
SkPaint paint;
|
||||||
|
this->getPaint(command, &paint);
|
||||||
|
target->drawRRect(rrect, paint);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processOval(Json::Value& command, SkCanvas* target) {
|
||||||
|
SkRect rect;
|
||||||
|
this->getRect(command, SKJSONCANVAS_ATTRIBUTE_COORDS, &rect);
|
||||||
|
SkPaint paint;
|
||||||
|
this->getPaint(command, &paint);
|
||||||
|
target->drawOval(rect, paint);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processPath(Json::Value& command, SkCanvas* target) {
|
||||||
|
Json::Value jsonPath = command[SKJSONCANVAS_ATTRIBUTE_PATH];
|
||||||
|
SkPath path;
|
||||||
|
for (Json::ArrayIndex i = 0; i < jsonPath.size(); i++) {
|
||||||
|
Json::Value verb = jsonPath[i];
|
||||||
|
if (verb.isString()) {
|
||||||
|
SkASSERT(!strcmp(verb.asCString(), SKJSONCANVAS_VERB_CLOSE));
|
||||||
|
path.close();
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
if (verb.isMember(SKJSONCANVAS_VERB_MOVE)) {
|
||||||
|
Json::Value move = verb[SKJSONCANVAS_VERB_MOVE];
|
||||||
|
path.moveTo(move[0].asFloat(), move[1].asFloat());
|
||||||
|
}
|
||||||
|
else if (verb.isMember(SKJSONCANVAS_VERB_LINE)) {
|
||||||
|
Json::Value line = verb[SKJSONCANVAS_VERB_LINE];
|
||||||
|
path.lineTo(line[0].asFloat(), line[1].asFloat());
|
||||||
|
}
|
||||||
|
else if (verb.isMember(SKJSONCANVAS_VERB_QUAD)) {
|
||||||
|
Json::Value quad = verb[SKJSONCANVAS_VERB_QUAD];
|
||||||
|
path.quadTo(quad[0][0].asFloat(), quad[0][1].asFloat(),
|
||||||
|
quad[1][0].asFloat(), quad[1][1].asFloat());
|
||||||
|
}
|
||||||
|
else if (verb.isMember(SKJSONCANVAS_VERB_CUBIC)) {
|
||||||
|
Json::Value cubic = verb[SKJSONCANVAS_VERB_CUBIC];
|
||||||
|
path.cubicTo(cubic[0][0].asFloat(), cubic[0][1].asFloat(),
|
||||||
|
cubic[1][0].asFloat(), cubic[1][1].asFloat(),
|
||||||
|
cubic[2][0].asFloat(), cubic[2][1].asFloat());
|
||||||
|
}
|
||||||
|
else if (verb.isMember(SKJSONCANVAS_VERB_CONIC)) {
|
||||||
|
Json::Value conic = verb[SKJSONCANVAS_VERB_CONIC];
|
||||||
|
path.conicTo(conic[0][0].asFloat(), conic[0][1].asFloat(),
|
||||||
|
conic[1][0].asFloat(), conic[1][1].asFloat(),
|
||||||
|
conic[2].asFloat());
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
SkASSERT(false);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
SkPaint paint;
|
||||||
|
this->getPaint(command, &paint);
|
||||||
|
target->drawPath(path, paint);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processText(Json::Value& command, SkCanvas* target) {
|
||||||
|
const char* text = command[SKJSONCANVAS_ATTRIBUTE_TEXT].asCString();
|
||||||
|
SkPaint paint;
|
||||||
|
this->getPaint(command, &paint);
|
||||||
|
Json::Value coords = command[SKJSONCANVAS_ATTRIBUTE_COORDS];
|
||||||
|
target->drawText(text, strlen(text), coords[0].asFloat(), coords[1].asFloat(), paint);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processPoints(Json::Value& command, SkCanvas* target) {
|
||||||
|
SkCanvas::PointMode mode;
|
||||||
|
const char* jsonMode = command[SKJSONCANVAS_ATTRIBUTE_MODE].asCString();
|
||||||
|
if (!strcmp(jsonMode, SKJSONCANVAS_POINTMODE_POINTS)) {
|
||||||
|
mode = SkCanvas::kPoints_PointMode;
|
||||||
|
}
|
||||||
|
else if (!strcmp(jsonMode, SKJSONCANVAS_POINTMODE_LINES)) {
|
||||||
|
mode = SkCanvas::kLines_PointMode;
|
||||||
|
}
|
||||||
|
else if (!strcmp(jsonMode, SKJSONCANVAS_POINTMODE_POLYGON)) {
|
||||||
|
mode = SkCanvas::kPolygon_PointMode;
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
SkASSERT(false);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
Json::Value jsonPoints = command[SKJSONCANVAS_ATTRIBUTE_POINTS];
|
||||||
|
int count = (int) jsonPoints.size();
|
||||||
|
SkPoint* points = (SkPoint*) sk_malloc_throw(count * sizeof(SkPoint));
|
||||||
|
for (int i = 0; i < count; i++) {
|
||||||
|
points[i] = SkPoint::Make(jsonPoints[i][0].asFloat(), jsonPoints[i][1].asFloat());
|
||||||
|
}
|
||||||
|
SkPaint paint;
|
||||||
|
this->getPaint(command, &paint);
|
||||||
|
target->drawPoints(mode, count, points, paint);
|
||||||
|
free(points);
|
||||||
|
}
|
||||||
|
|
||||||
|
void Renderer::processClipRect(Json::Value& command, SkCanvas* target) {
|
||||||
|
SkRect rect;
|
||||||
|
this->getRect(command, SKJSONCANVAS_ATTRIBUTE_COORDS, &rect);
|
||||||
|
target->clipRect(rect);
|
||||||
|
}
|
||||||
|
|
||||||
|
void render(const char* json, SkCanvas* target) {
|
||||||
|
Renderer renderer;
|
||||||
|
Json::Reader reader;
|
||||||
|
Json::Value root;
|
||||||
|
if (reader.parse(std::string(json), root)) {
|
||||||
|
SkASSERT(root[SKJSONCANVAS_VERSION].asInt() == 1);
|
||||||
|
Json::Value commands = root[SKJSONCANVAS_COMMANDS];
|
||||||
|
for (Json::ArrayIndex i = 0; i < commands.size(); i++) {
|
||||||
|
renderer.processCommand(commands[i], target);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
else {
|
||||||
|
SkDebugf(json);
|
||||||
|
SkFAIL("json parse failure");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
} // namespace
|
||||||
22
tools/json/SkJSONRenderer.h
Normal file
22
tools/json/SkJSONRenderer.h
Normal file
@ -0,0 +1,22 @@
|
|||||||
|
/*
|
||||||
|
* 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 SkJSONRenderer_DEFINED
|
||||||
|
#define SkJSONRenderer_DEFINED
|
||||||
|
|
||||||
|
|
||||||
|
#include "SkCanvas.h"
|
||||||
|
|
||||||
|
namespace SkJSONRenderer {
|
||||||
|
/*
|
||||||
|
* Takes a JSON document produced by SkJSONCanvas and issues its draw commands to the target
|
||||||
|
* canvas.
|
||||||
|
*/
|
||||||
|
void render(const char* json, SkCanvas* target);
|
||||||
|
}
|
||||||
|
|
||||||
|
#endif
|
||||||
Loading…
Reference in New Issue
Block a user