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Unified Diff: tools/json/SkJSONCanvas.cpp

Issue 1644903003: added support for more features in JSON (blurs, dashing, different path fill types, etc.) (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 4 years, 11 months ago
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Index: tools/json/SkJSONCanvas.cpp
diff --git a/tools/json/SkJSONCanvas.cpp b/tools/json/SkJSONCanvas.cpp
index 4bd23db4fd60ef8799a7d1f4c4d599bca150dcfe..106b59ff563f77443f4d14079184a0cdc33b78eb 100644
--- a/tools/json/SkJSONCanvas.cpp
+++ b/tools/json/SkJSONCanvas.cpp
@@ -6,7 +6,10 @@
*/
#include "SkJSONCanvas.h"
+#include "SkMaskFilter.h"
+#include "SkPaintDefaults.h"
#include "SkPath.h"
+#include "SkPathEffect.h"
#include "SkRRect.h"
SkJSONCanvas::SkJSONCanvas(int width, int height, SkWStream& out)
@@ -50,13 +53,28 @@ Json::Value SkJSONCanvas::makeRRect(const SkRRect& rrect) {
result.append(this->makeRect(rrect.rect()));
result.append(this->makePoint(rrect.radii(SkRRect::kUpperLeft_Corner)));
result.append(this->makePoint(rrect.radii(SkRRect::kUpperRight_Corner)));
- result.append(this->makePoint(rrect.radii(SkRRect::kLowerLeft_Corner)));
result.append(this->makePoint(rrect.radii(SkRRect::kLowerRight_Corner)));
+ result.append(this->makePoint(rrect.radii(SkRRect::kLowerLeft_Corner)));
return result;
}
Json::Value SkJSONCanvas::makePath(const SkPath& path) {
- Json::Value result(Json::arrayValue);
+ Json::Value result(Json::objectValue);
+ switch (path.getFillType()) {
+ case SkPath::kWinding_FillType:
+ result[SKJSONCANVAS_ATTRIBUTE_FILLTYPE] = SKJSONCANVAS_FILLTYPE_WINDING;
+ break;
+ case SkPath::kEvenOdd_FillType:
+ result[SKJSONCANVAS_ATTRIBUTE_FILLTYPE] = SKJSONCANVAS_FILLTYPE_EVENODD;
+ break;
+ case SkPath::kInverseWinding_FillType:
+ result[SKJSONCANVAS_ATTRIBUTE_FILLTYPE] = SKJSONCANVAS_FILLTYPE_INVERSEWINDING;
+ break;
+ case SkPath::kInverseEvenOdd_FillType:
+ result[SKJSONCANVAS_ATTRIBUTE_FILLTYPE] = SKJSONCANVAS_FILLTYPE_INVERSEEVENODD;
+ break;
+ }
+ Json::Value verbs(Json::arrayValue);
SkPath::Iter iter(path, false);
SkPoint pts[4];
SkPath::Verb verb;
@@ -65,7 +83,7 @@ Json::Value SkJSONCanvas::makePath(const SkPath& path) {
case SkPath::kLine_Verb: {
Json::Value line(Json::objectValue);
line[SKJSONCANVAS_VERB_LINE] = this->makePoint(pts[1]);
- result.append(line);
+ verbs.append(line);
break;
}
case SkPath::kQuad_Verb: {
@@ -74,7 +92,7 @@ Json::Value SkJSONCanvas::makePath(const SkPath& path) {
coords.append(this->makePoint(pts[1]));
coords.append(this->makePoint(pts[2]));
quad[SKJSONCANVAS_VERB_QUAD] = coords;
- result.append(quad);
+ verbs.append(quad);
break;
}
case SkPath::kCubic_Verb: {
@@ -84,7 +102,7 @@ Json::Value SkJSONCanvas::makePath(const SkPath& path) {
coords.append(this->makePoint(pts[2]));
coords.append(this->makePoint(pts[3]));
cubic[SKJSONCANVAS_VERB_CUBIC] = coords;
- result.append(cubic);
+ verbs.append(cubic);
break;
}
case SkPath::kConic_Verb: {
@@ -94,22 +112,23 @@ Json::Value SkJSONCanvas::makePath(const SkPath& path) {
coords.append(this->makePoint(pts[2]));
coords.append(Json::Value(iter.conicWeight()));
conic[SKJSONCANVAS_VERB_CONIC] = coords;
- result.append(conic);
+ verbs.append(conic);
break;
}
case SkPath::kMove_Verb: {
Json::Value move(Json::objectValue);
move[SKJSONCANVAS_VERB_MOVE] = this->makePoint(pts[0]);
- result.append(move);
+ verbs.append(move);
break;
}
case SkPath::kClose_Verb:
- result.append(Json::Value(SKJSONCANVAS_VERB_CLOSE));
+ verbs.append(Json::Value(SKJSONCANVAS_VERB_CLOSE));
break;
case SkPath::kDone_Verb:
break;
}
}
+ result[SKJSONCANVAS_ATTRIBUTE_VERBS] = verbs;
return result;
}
@@ -117,6 +136,18 @@ Json::Value SkJSONCanvas::makeRegion(const SkRegion& region) {
return Json::Value("<unimplemented>");
}
+void store_scalar(Json::Value* target, const char* key, SkScalar value, SkScalar defaultValue) {
+ if (value != defaultValue) {
+ (*target)[key] = Json::Value(value);
+ }
+}
+
+void store_bool(Json::Value* target, const char* key, bool value, bool defaultValue) {
+ if (value != defaultValue) {
+ (*target)[key] = Json::Value(value);
+ }
+}
+
Json::Value SkJSONCanvas::makePaint(const SkPaint& paint) {
Json::Value result(Json::objectValue);
SkColor color = paint.getColor();
@@ -144,12 +175,86 @@ Json::Value SkJSONCanvas::makePaint(const SkPaint& paint) {
default: SkASSERT(false);
}
}
- SkScalar strokeWidth = paint.getStrokeWidth();
- if (strokeWidth != 0.0f) {
- result[SKJSONCANVAS_ATTRIBUTE_STROKEWIDTH] = Json::Value(strokeWidth);
+ store_scalar(&result, SKJSONCANVAS_ATTRIBUTE_STROKEWIDTH, paint.getStrokeWidth(), 0.0f);
+ store_bool(&result, SKJSONCANVAS_ATTRIBUTE_ANTIALIAS, paint.isAntiAlias(), false);
+ SkMaskFilter* maskFilter = paint.getMaskFilter();
+ if (maskFilter != nullptr) {
+ SkMaskFilter::BlurRec blurRec;
+ if (maskFilter->asABlur(&blurRec)) {
+ Json::Value blur(Json::objectValue);
+ blur[SKJSONCANVAS_ATTRIBUTE_SIGMA] = Json::Value(blurRec.fSigma);
+ switch (blurRec.fStyle) {
+ case SkBlurStyle::kNormal_SkBlurStyle:
+ blur[SKJSONCANVAS_ATTRIBUTE_STYLE] = Json::Value(SKJSONCANVAS_BLURSTYLE_NORMAL);
+ break;
+ case SkBlurStyle::kSolid_SkBlurStyle:
+ blur[SKJSONCANVAS_ATTRIBUTE_STYLE] = Json::Value(SKJSONCANVAS_BLURSTYLE_SOLID);
+ break;
+ case SkBlurStyle::kOuter_SkBlurStyle:
+ blur[SKJSONCANVAS_ATTRIBUTE_STYLE] = Json::Value(SKJSONCANVAS_BLURSTYLE_OUTER);
+ break;
+ case SkBlurStyle::kInner_SkBlurStyle:
+ blur[SKJSONCANVAS_ATTRIBUTE_STYLE] = Json::Value(SKJSONCANVAS_BLURSTYLE_INNER);
+ break;
+ default:
+ SkASSERT(false);
+ }
+ switch (blurRec.fQuality) {
+ case SkBlurQuality::kLow_SkBlurQuality:
+ blur[SKJSONCANVAS_ATTRIBUTE_QUALITY] = Json::Value(SKJSONCANVAS_BLURQUALITY_LOW);
+ break;
+ case SkBlurQuality::kHigh_SkBlurQuality:
+ blur[SKJSONCANVAS_ATTRIBUTE_QUALITY] = Json::Value(SKJSONCANVAS_BLURQUALITY_HIGH);
+ break;
+ default:
+ SkASSERT(false);
+ }
+ result[SKJSONCANVAS_ATTRIBUTE_BLUR] = blur;
+ }
+ else {
+ SkDebugf("unimplemented: non-blur maskfilter");
+ SkASSERT(false);
+ }
}
- if (paint.isAntiAlias()) {
- result[SKJSONCANVAS_ATTRIBUTE_ANTIALIAS] = Json::Value(true);
+ SkPathEffect* pathEffect = paint.getPathEffect();
+ if (pathEffect != nullptr) {
+ SkPathEffect::DashInfo dashInfo;
+ SkPathEffect::DashType dashType = pathEffect->asADash(&dashInfo);
+ if (dashType == SkPathEffect::kDash_DashType) {
+ dashInfo.fIntervals = (SkScalar*) sk_malloc_throw(dashInfo.fCount * sizeof(SkScalar));
+ pathEffect->asADash(&dashInfo);
+ Json::Value dashing(Json::objectValue);
+ Json::Value intervals(Json::arrayValue);
+ for (int32_t i = 0; i < dashInfo.fCount; i++) {
+ intervals.append(Json::Value(dashInfo.fIntervals[i]));
+ }
+ free(dashInfo.fIntervals);
+ dashing[SKJSONCANVAS_ATTRIBUTE_INTERVALS] = intervals;
+ dashing[SKJSONCANVAS_ATTRIBUTE_PHASE] = dashInfo.fPhase;
+ result[SKJSONCANVAS_ATTRIBUTE_DASHING] = dashing;
+ }
+ else {
+ SkDebugf("unimplemented: non-dash patheffect");
+ SkASSERT(false);
+ }
+ }
+ store_scalar(&result, SKJSONCANVAS_ATTRIBUTE_TEXTSIZE, paint.getTextSize(),
+ SkPaintDefaults_TextSize);
+ store_scalar(&result, SKJSONCANVAS_ATTRIBUTE_TEXTSCALEX, paint.getTextScaleX(), SK_Scalar1);
+ store_scalar(&result, SKJSONCANVAS_ATTRIBUTE_TEXTSCALEX, paint.getTextSkewX(), 0.0f);
+ SkPaint::Align textAlign = paint.getTextAlign();
+ if (textAlign != SkPaint::kLeft_Align) {
+ switch (textAlign) {
+ case SkPaint::kCenter_Align: {
+ result[SKJSONCANVAS_ATTRIBUTE_TEXTALIGN] = SKJSONCANVAS_ALIGN_CENTER;
+ break;
+ }
+ case SkPaint::kRight_Align: {
+ result[SKJSONCANVAS_ATTRIBUTE_TEXTALIGN] = SKJSONCANVAS_ALIGN_RIGHT;
+ break;
+ }
+ default: SkASSERT(false);
+ }
}
return result;
}
@@ -194,18 +299,6 @@ Json::Value SkJSONCanvas::makeRegionOp(SkRegion::Op op) {
};
}
-Json::Value SkJSONCanvas::makeEdgeStyle(SkCanvas::ClipEdgeStyle edgeStyle) {
- switch (edgeStyle) {
- case SkCanvas::kHard_ClipEdgeStyle:
- return Json::Value(SKJSONCANVAS_EDGESTYLE_HARD);
- case SkCanvas::kSoft_ClipEdgeStyle:
- return Json::Value(SKJSONCANVAS_EDGESTYLE_SOFT);
- default:
- SkASSERT(false);
- return Json::Value("<invalid edge style>");
- };
-}
-
Json::Value SkJSONCanvas::makePointMode(SkCanvas::PointMode mode) {
switch (mode) {
case SkCanvas::kPoints_PointMode:
@@ -352,7 +445,18 @@ void SkJSONCanvas::onDrawText(const void* text, size_t byteLength, SkScalar x,
void SkJSONCanvas::onDrawPosText(const void* text, size_t byteLength,
const SkPoint pos[], const SkPaint& paint) {
- SkDebugf("unsupported: drawPosText\n");
+ this->updateMatrix();
+ Json::Value command(Json::objectValue);
+ command[SKJSONCANVAS_COMMAND] = Json::Value(SKJSONCANVAS_COMMAND_POSTEXT);
+ command[SKJSONCANVAS_ATTRIBUTE_TEXT] = Json::Value((const char*) text,
+ ((const char*) text) + byteLength);
+ Json::Value coords(Json::arrayValue);
+ for (size_t i = 0; i < byteLength; i++) {
+ coords.append(this->makePoint(pos[i]));
+ }
+ command[SKJSONCANVAS_ATTRIBUTE_COORDS] = coords;
+ command[SKJSONCANVAS_ATTRIBUTE_PAINT] = this->makePaint(paint);
+ fCommands.append(command);
}
void SkJSONCanvas::onDrawPosTextH(const void* text, size_t byteLength,
@@ -388,7 +492,7 @@ void SkJSONCanvas::onClipRect(const SkRect& rect, SkRegion::Op op, ClipEdgeStyle
command[SKJSONCANVAS_COMMAND] = Json::Value(SKJSONCANVAS_COMMAND_CLIPRECT);
command[SKJSONCANVAS_ATTRIBUTE_COORDS] = this->makeRect(rect);
command[SKJSONCANVAS_ATTRIBUTE_REGIONOP] = this->makeRegionOp(op);
- command[SKJSONCANVAS_ATTRIBUTE_EDGESTYLE] = this->makeEdgeStyle(edgeStyle);
+ command[SKJSONCANVAS_ATTRIBUTE_ANTIALIAS] = (edgeStyle == SkCanvas::kSoft_ClipEdgeStyle);
fCommands.append(command);
}
@@ -398,7 +502,7 @@ void SkJSONCanvas::onClipRRect(const SkRRect& rrect, SkRegion::Op op, ClipEdgeSt
command[SKJSONCANVAS_COMMAND] = Json::Value(SKJSONCANVAS_COMMAND_CLIPRRECT);
command[SKJSONCANVAS_ATTRIBUTE_COORDS] = this->makeRRect(rrect);
command[SKJSONCANVAS_ATTRIBUTE_REGIONOP] = this->makeRegionOp(op);
- command[SKJSONCANVAS_ATTRIBUTE_EDGESTYLE] = this->makeEdgeStyle(edgeStyle);
+ command[SKJSONCANVAS_ATTRIBUTE_ANTIALIAS] = (edgeStyle == SkCanvas::kSoft_ClipEdgeStyle);
fCommands.append(command);
}
@@ -408,7 +512,7 @@ void SkJSONCanvas::onClipPath(const SkPath& path, SkRegion::Op op, ClipEdgeStyle
command[SKJSONCANVAS_COMMAND] = Json::Value(SKJSONCANVAS_COMMAND_CLIPPATH);
command[SKJSONCANVAS_ATTRIBUTE_PATH] = this->makePath(path);
command[SKJSONCANVAS_ATTRIBUTE_REGIONOP] = this->makeRegionOp(op);
- command[SKJSONCANVAS_ATTRIBUTE_EDGESTYLE] = this->makeEdgeStyle(edgeStyle);
+ command[SKJSONCANVAS_ATTRIBUTE_ANTIALIAS] = (edgeStyle == SkCanvas::kSoft_ClipEdgeStyle);
fCommands.append(command);
}
@@ -422,6 +526,7 @@ void SkJSONCanvas::onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) {
}
void SkJSONCanvas::willSave() {
+ this->updateMatrix();
Json::Value command(Json::objectValue);
command[SKJSONCANVAS_COMMAND] = Json::Value(SKJSONCANVAS_COMMAND_SAVE);
fCommands.append(command);
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