void draw(SkCanvas* canvas) {
SkPaint paint;
SkPath path;
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(4);
path.moveTo(0, 0);
path.arcTo({20, 20, 120, 120}, -90, 90, false);
canvas->drawPath(path, paint);
path.rewind();
path.arcTo({120, 20, 220, 120}, -90, 90, false);
canvas->drawPath(path, paint);
path.rewind();
path.moveTo(0, 0);
path.arcTo({20, 120, 120, 220}, -90, 90, true);
canvas->drawPath(path, paint);
}
PathTexture* PathCache::getArc(float width, float height,
float startAngle, float sweepAngle, bool useCenter, const SkPaint* paint) {
PathDescription entry(kShapeArc, paint);
entry.shape.arc.mWidth = width;
entry.shape.arc.mHeight = height;
entry.shape.arc.mStartAngle = startAngle;
entry.shape.arc.mSweepAngle = sweepAngle;
entry.shape.arc.mUseCenter = useCenter;
PathTexture* texture = get(entry);
if (!texture) {
SkPath path;
SkRect r;
r.set(0.0f, 0.0f, width, height);
if (useCenter) {
path.moveTo(r.centerX(), r.centerY());
}
path.arcTo(r, startAngle, sweepAngle, !useCenter);
if (useCenter) {
path.close();
}
texture = addTexture(entry, &path, paint);
}
return texture;
}
static SkPath make_path() {
SkPath path;
int numOps = R(30);
for (int i = 0; i < numOps; ++i) {
switch (R(6)) {
case 0:
path.moveTo(make_scalar(), make_scalar());
break;
case 1:
path.lineTo(make_scalar(), make_scalar());
break;
case 2:
path.quadTo(make_scalar(), make_scalar(), make_scalar(), make_scalar());
break;
case 3:
path.conicTo(make_scalar(), make_scalar(), make_scalar(), make_scalar(), make_scalar());
break;
case 4:
path.cubicTo(make_scalar(), make_scalar(), make_scalar(),
make_scalar(), make_scalar(), make_scalar());
break;
case 5:
default:
path.arcTo(make_scalar(), make_scalar(), make_scalar(), make_scalar(), make_scalar());
break;
}
}
path.close();
return path;
}
static void draw_sweep(SkCanvas* c, int width, int height, SkScalar angle) {
SkRect r;
SkPaint p;
p.setAntiAlias(true);
// p.setDither(true);
p.setStrokeWidth(SkIntToScalar(width/10));
p.setStyle(SkPaint::kStroke_Style);
r.set(0, 0, SkIntToScalar(width), SkIntToScalar(height));
// SkColor colors[] = { SK_ColorRED, SK_ColorBLUE, SK_ColorGREEN, SK_ColorCYAN };
SkColor colors[] = { 0x4c737373, 0x4c737373, 0xffffd300 };
SkShader* s = SkGradientShader::CreateSweep(r.centerX(), r.centerY(),
colors, NULL, SK_ARRAY_COUNT(colors));
p.setShader(s)->unref();
SkAutoCanvasRestore acr(c, true);
c->translate(r.centerX(), r.centerY());
c->rotate(angle);
c->translate(-r.centerX(), -r.centerY());
SkRect bounds = r;
r.inset(p.getStrokeWidth(), p.getStrokeWidth());
SkRect innerBounds = r;
if (true) {
c->drawOval(r, p);
} else {
SkScalar x = r.centerX();
SkScalar y = r.centerY();
SkScalar radius = r.width() / 2;
SkScalar thickness = p.getStrokeWidth();
SkScalar sweep = SkFloatToScalar(360.0f);
SkPath path;
path.moveTo(x + radius, y);
// outer top
path.lineTo(x + radius + thickness, y);
// outer arc
path.arcTo(bounds, 0, sweep, false);
// inner arc
path.arcTo(innerBounds, sweep, -sweep, false);
path.close();
}
}
void mbe_arc(mbe_t *mbe, co_aix x, co_aix y, co_aix radius,
co_aix angle_start, co_aix angle_stop) {
SkPoint point;
SkPath *subpath = mbe->subpath;
SkRect rect;
SkScalar x0, y0;
SkScalar ang_start, ang_stop;
SkScalar sweep;
SkScalar r; /* radius */
subpath->getLastPt(&point);
x0 = point.fX;
y0 = point.fX;
r = CO_AIX_2_SKSCALAR(radius);
ang_start = CO_AIX_2_SKSCALAR(angle_start * 180 / PI);
ang_stop = CO_AIX_2_SKSCALAR(angle_stop * 180 / PI);
/* Skia can only draw an arc in clockwise directly. We negative
* start and stop point to draw the arc in the mirror along x-axis
* in a sub-path. Then, the sub-path are reflected along x-axis,
* again. We get a right path, and add it to the path of mbe_t.
*/
if(ang_start > ang_stop) {
SkPath tmppath;
SkMatrix matrix;
co_aix reflect[6] = { 1, 0, 0,
0, -1, 0};
rect.set(-r, -r, r, r);
sweep = ang_start - ang_stop;
tmppath.arcTo(rect, -ang_start, sweep, false);
reflect[2] = x;
reflect[5] = y;
MB_MATRIX_2_SKMATRIX(matrix, reflect);
subpath->addPath(tmppath, matrix);
} else {
rect.set(x0 - r, y0 - r, x0 + r, y0 + r);
sweep = ang_stop - ang_start;
subpath->arcTo(rect, ang_start, sweep, false);
}
}
static void fuzz_drawPath(Fuzz* fuzz) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
// TODO(kjlubick): put the ability to fuzz a path in shared file, with
// other common things (e.g. rects, lines)
uint8_t i, j;
fuzz->nextRange(&i, 0, 10); // set i to number of operations to perform
SkPath path;
SkScalar a, b, c, d, e, f;
for (int k = 0; k < i; ++k) {
fuzz->nextRange(&j, 0, 5); // set j to choose operation to perform
switch (j) {
case 0:
fuzz->next(&a, &b);
path.moveTo(a, b);
break;
case 1:
fuzz->next(&a, &b);
path.lineTo(a, b);
break;
case 2:
fuzz->next(&a, &b, &c, &d);
path.quadTo(a, b, c, d);
break;
case 3:
fuzz->next(&a, &b, &c, &d, &e);
path.conicTo(a, b, c, d, e);
break;
case 4:
fuzz->next(&a, &b, &c, &d, &e, &f);
path.cubicTo(a, b, c, d, e, f);
break;
case 5:
fuzz->next(&a, &b, &c, &d, &e);
path.arcTo(a, b, c, d, e);
break;
}
}
path.close();
SkCanvas* cnv = surface->getCanvas();
cnv->drawPath(path, p);
bool bl;
fuzz->next(&bl);
cnv->clipPath(path, kIntersect_SkClipOp, bl);
}
void draw(SkCanvas* canvas) {
const char* verbNames[] = { "move", "line", "quad", "conic", "cubic", "close", "done" };
const int pointCount[] = { 1 , 2 , 3 , 3 , 4 , 1 , 0 };
SkPath path;
path.arcTo(20, 0, 20, 20, 20);
SkPath::Iter iter(path, false);
SkPath::Verb verb;
do {
SkPoint points[4];
verb = iter.next(points);
SkDebugf("%s ", verbNames[(int) verb]);
for (int i = 0; i < pointCount[(int) verb]; ++i) {
SkDebugf("{%g, %g}, ", points[i].fX, points[i].fY);
}
if (SkPath::kConic_Verb == verb) {
SkDebugf("weight = %g", iter.conicWeight());
}
SkDebugf("\n");
} while (SkPath::kDone_Verb != verb);
}
static SkPath make_path() {
SkPath path;
uint8_t numOps;
fuzz->nextRange(&numOps, 0, 30);
for (uint8_t i = 0; i < numOps; ++i) {
uint8_t op;
fuzz->nextRange(&op, 0, 5);
SkScalar a, b, c, d, e, f;
switch (op) {
case 0:
fuzz->next(&a, &b);
path.moveTo(a, b);
break;
case 1:
fuzz->next(&a, &b);
path.lineTo(a, b);
break;
case 2:
fuzz->next(&a, &b, &c, &d);
path.quadTo(a, b, c, d);
break;
case 3:
fuzz->next(&a, &b, &c, &d, &e);
path.conicTo(a, b, c, d, e);
break;
case 4:
fuzz->next(&a, &b, &c, &d, &e, &f);
path.cubicTo(a, b, c, d, e, f);
break;
case 5:
default:
fuzz->next(&a, &b, &c, &d, &e);
path.arcTo(a, b, c, d, e);
break;
}
}
path.close();
return path;
}
PathTexture* ArcShapeCache::getArc(float width, float height,
float startAngle, float sweepAngle, bool useCenter, SkPaint* paint) {
ArcShapeCacheEntry entry(width, height, startAngle, sweepAngle, useCenter, paint);
PathTexture* texture = get(entry);
if (!texture) {
SkPath path;
SkRect r;
r.set(0.0f, 0.0f, width, height);
if (useCenter) {
path.moveTo(r.centerX(), r.centerY());
}
path.arcTo(r, startAngle, sweepAngle, !useCenter);
if (useCenter) {
path.close();
}
texture = addTexture(entry, &path, paint);
}
return texture;
}
void onDrawContent(SkCanvas* canvas) override {
SkPaint paintFill;
SkPaint paintStroke;
SkPath path;
canvas->save();
canvas->translate(150, 150);
canvas->scale(0.4f, 0.4f);
canvas->rotate(-180.f/2.f);
paintFill.setAntiAlias(true);
paintFill.setColor(SK_ColorBLACK);
paintStroke.setAntiAlias(true);
paintStroke.setStyle(SkPaint::kStroke_Style);
paintStroke.setColor(SK_ColorBLACK);
paintStroke.setStrokeWidth(8);
paintStroke.setStrokeCap(SkPaint::kRound_Cap);
// Hour marks
SkRect rect;
#ifndef USE_PATH
rect = SkRect::MakeLTRB(200-4, -4, 240+4, 4);
SkRRect rrect;
SkVector radii[4] = {{4,4}, {4,4}, {4,4}, {4,4}};
rrect.setRectRadii(rect, radii);
#endif
canvas->save();
for (int i=0;i<12;i++){
canvas->rotate(180.f/6.f);
#ifdef USE_PATH
path.reset();
path.moveTo(200,0);
path.lineTo(240,0);
canvas->drawPath(path, paintStroke);
#else
canvas->drawRRect(rrect, paintFill);
#endif
}
canvas->restore();
// Minute marks
canvas->save();
#ifdef USE_PATH
paintStroke.setStrokeWidth(5);
#else
rect = SkRect::MakeLTRB(231.5f, -2.5f, 242.5, 2.5f);
radii[0] = SkPoint::Make(2.5f,2.5f);
radii[1] = SkPoint::Make(2.5f,2.5f);
radii[2] = SkPoint::Make(2.5f,2.5f);
radii[3] = SkPoint::Make(2.5f,2.5f);
rrect.setRectRadii(rect, radii);
#endif
for (int i=0;i<60;i++){
if (i%5 == 0) {
canvas->rotate(180.f/30.f);
continue;
}
#ifdef USE_PATH
path.reset();
path.moveTo(234,0);
path.lineTo(240,0);
canvas->drawPath(path, paintStroke);
#else
canvas->drawRRect(rrect, paintFill);
#endif
canvas->rotate(180.f/30.f);
}
canvas->restore();
SkTime::DateTime time;
SkTime::GetDateTime(&time);
time.fHour = time.fHour >= 12 ? time.fHour-12 : time.fHour;
paintFill.setColor(SK_ColorBLACK);
// Write hours
canvas->save();
canvas->rotate(time.fHour*(180.f/6.f) + time.fMinute*(180.f/360.f)
+ time.fSecond*(180.f/21600.f) );
#ifdef USE_PATH
paintStroke.setStrokeWidth(14);
path.reset();
path.moveTo(-20,0);
path.lineTo(80,0);
canvas->drawPath(path, paintStroke);
#else
rect = SkRect::MakeLTRB(-20-7, -7, 80+7, 7);
radii[0] = SkPoint::Make(7,7);
radii[1] = SkPoint::Make(7,7);
radii[2] = SkPoint::Make(7,7);
radii[3] = SkPoint::Make(7,7);
rrect.setRectRadii(rect, radii);
canvas->drawRRect(rrect, paintFill);
#endif
canvas->restore();
// Write minutes
canvas->save();
canvas->rotate(time.fMinute*(180.f/30.f)
+ time.fSecond*(180.f/1800.f) );
#ifdef USE_PATH
paintStroke.setStrokeWidth(10);
path.reset();
path.moveTo(-56,0);
path.lineTo(224,0);
canvas->drawPath(path, paintStroke);
#else
rect = SkRect::MakeLTRB(-56-5, -5, 224+5, 5);
radii[0] = SkPoint::Make(5,5);
radii[1] = SkPoint::Make(5,5);
radii[2] = SkPoint::Make(5,5);
radii[3] = SkPoint::Make(5,5);
rrect.setRectRadii(rect, radii);
canvas->drawRRect(rrect, paintFill);
#endif
canvas->restore();
// Write seconds
canvas->save();
canvas->rotate(time.fSecond*(180.f/30.f));
paintFill.setColor(0xffd40000);
paintStroke.setColor(0xffd40000);
paintStroke.setStrokeWidth(6);
#ifdef USE_PATH
path.reset();
path.moveTo(-60,0);
path.lineTo(166,0);
canvas->drawPath(path, paintStroke);
#else
rect = SkRect::MakeLTRB(-60-3, -3, 166+3, 3);
radii[0] = SkPoint::Make(3,3);
radii[1] = SkPoint::Make(3,3);
radii[2] = SkPoint::Make(3,3);
radii[3] = SkPoint::Make(3,3);
rrect.setRectRadii(rect, radii);
canvas->drawRRect(rrect, paintFill);
#endif
rect = SkRect::MakeLTRB(-20, -20, 20, 20);
#ifdef USE_PATH
path.reset();
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintFill);
#else
canvas->drawOval(rect, paintFill);
#endif
rect = SkRect::MakeLTRB(-20+190, -20, 20+190, 20);
#ifdef USE_PATH
path.reset();
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintStroke);
#else
canvas->drawOval(rect, paintStroke);
#endif
paintFill.setColor(0xff505050);
#ifdef USE_PATH
rect = SkRect::MakeLTRB(-6, -6, 6, 6);
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintFill);
#else
canvas->drawOval(rect, paintFill);
rect = SkRect::MakeLTRB(-6, -6, 6, 6);
canvas->drawOval(rect, paintFill);
#endif
canvas->restore();
paintStroke.setStrokeWidth(18);
paintStroke.setColor(0xff325FA2);
rect = SkRect::MakeLTRB(-284, -284, 284, 284);
#ifdef USE_PATH
path.reset();
path.arcTo(rect, 0, 0, false);
path.addOval(rect, SkPath::kCCW_Direction);
path.arcTo(rect, 360, 0, true);
canvas->drawPath(path, paintStroke);
#else
canvas->drawOval(rect, paintStroke);
#endif
canvas->restore();
this->inval(nullptr);
}
virtual void onDrawContent(SkCanvas* canvas) {
const char text[] = "Shaded Text";
const int textLen = SK_ARRAY_COUNT(text) - 1;
static int pointSize = 36;
int w = pointSize * textLen;
int h = pointSize;
SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(w), SkIntToScalar(h) }
};
SkScalar textBase = SkIntToScalar(h/2);
SkShader::TileMode tileModes[] = {
SkShader::kClamp_TileMode,
SkShader::kRepeat_TileMode,
SkShader::kMirror_TileMode
};
static const int gradCount = SK_ARRAY_COUNT(gGradData) *
SK_ARRAY_COUNT(gGradMakers);
static const int bmpCount = SK_ARRAY_COUNT(tileModes) *
SK_ARRAY_COUNT(tileModes);
SkShader* shaders[gradCount + bmpCount];
int shdIdx = 0;
for (size_t d = 0; d < SK_ARRAY_COUNT(gGradData); ++d) {
for (size_t m = 0; m < SK_ARRAY_COUNT(gGradMakers); ++m) {
shaders[shdIdx++] = gGradMakers[m](pts,
gGradData[d],
SkShader::kClamp_TileMode);
}
}
for (size_t tx = 0; tx < SK_ARRAY_COUNT(tileModes); ++tx) {
for (size_t ty = 0; ty < SK_ARRAY_COUNT(tileModes); ++ty) {
shaders[shdIdx++] = MakeBitmapShader(tileModes[tx],
tileModes[ty],
w/8, h);
}
}
SkPaint paint;
paint.setDither(true);
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(pointSize));
canvas->save();
canvas->translate(SkIntToScalar(20), SkIntToScalar(10));
SkPath path;
path.arcTo(SkRect::MakeXYWH(SkIntToScalar(-40), SkIntToScalar(15),
SkIntToScalar(300), SkIntToScalar(90)),
SkIntToScalar(225), SkIntToScalar(90),
false);
path.close();
static const int testsPerCol = 8;
static const int rowHeight = 60;
static const int colWidth = 300;
canvas->save();
for (size_t s = 0; s < SK_ARRAY_COUNT(shaders); s++) {
canvas->save();
size_t i = 2*s;
canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
SkIntToScalar((i % testsPerCol) * rowHeight));
paint.setShader(shaders[s])->unref();
canvas->drawText(text, textLen, 0, textBase, paint);
canvas->restore();
canvas->save();
++i;
canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
SkIntToScalar((i % testsPerCol) * rowHeight));
canvas->drawTextOnPath(text, textLen, path, NULL, paint);
canvas->restore();
}
canvas->restore();
}
void onDraw(SkCanvas* canvas) override {
static const char kText[] = "SKIA";
static const int kTextLen = SK_ARRAY_COUNT(kText) - 1;
static const int kPointSize = 55;
SkTDArray<LabeledMatrix> matrices;
matrices.append()->fMatrix.reset();
matrices.top().fLabel = "Identity";
matrices.append()->fMatrix.setScale(1.2f, 0.8f);
matrices.top().fLabel = "Scale";
matrices.append()->fMatrix.setRotate(10.f);
matrices.top().fLabel = "Rotate";
matrices.append()->fMatrix.reset();
matrices.top().fMatrix.setPerspX(-0.0015f);
matrices.top().fMatrix.setPerspY(+0.0015f);
matrices.top().fLabel = "Persp";
SkTDArray<LabeledMatrix> localMatrices;
localMatrices.append()->fMatrix.reset();
localMatrices.top().fLabel = "Identity";
localMatrices.append()->fMatrix.setScale(2.5f, 0.2f);
localMatrices.top().fLabel = "Scale";
localMatrices.append()->fMatrix.setRotate(45.f);
localMatrices.top().fLabel = "Rotate";
localMatrices.append()->fMatrix.reset();
localMatrices.top().fMatrix.setPerspX(-0.007f);
localMatrices.top().fMatrix.setPerspY(+0.008f);
localMatrices.top().fLabel = "Persp";
static SkBitmap bmp;
if (bmp.isNull()) {
makebm(&bmp, kPointSize / 2, kPointSize / 2);
}
SkPaint fillPaint;
fillPaint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface_always(&fillPaint);
fillPaint.setTextSize(SkIntToScalar(kPointSize));
fillPaint.setFilterQuality(kLow_SkFilterQuality);
SkPaint outlinePaint;
outlinePaint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface_always(&outlinePaint);
outlinePaint.setTextSize(SkIntToScalar(kPointSize));
outlinePaint.setStyle(SkPaint::kStroke_Style);
outlinePaint.setStrokeWidth(0.f);
SkScalar w = fillPaint.measureText(kText, kTextLen);
static SkScalar kPadY = 0.5f * kPointSize;
static SkScalar kPadX = 1.5f * kPointSize;
SkPaint strokePaint(fillPaint);
strokePaint.setStyle(SkPaint::kStroke_Style);
strokePaint.setStrokeWidth(kPointSize * 0.1f);
SkPaint labelPaint;
labelPaint.setColor(0xff000000);
labelPaint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface_always(&labelPaint);
labelPaint.setTextSize(12.f);
canvas->translate(15.f, 15.f);
canvas->drawBitmap(bmp, 0, 0);
canvas->translate(0, bmp.height() + labelPaint.getTextSize() + 15.f);
static const char kLabelLabel[] = "localM / canvasM";
canvas->drawText(kLabelLabel, strlen(kLabelLabel), 0, 0, labelPaint);
canvas->translate(0, 15.f);
canvas->save();
SkScalar maxLabelW = 0;
canvas->translate(0, kPadY / 2 + kPointSize);
for (int lm = 0; lm < localMatrices.count(); ++lm) {
canvas->drawText(matrices[lm].fLabel, strlen(matrices[lm].fLabel),
0, labelPaint.getTextSize() - 1, labelPaint);
SkScalar labelW = labelPaint.measureText(matrices[lm].fLabel,
strlen(matrices[lm].fLabel));
maxLabelW = SkMaxScalar(maxLabelW, labelW);
canvas->translate(0.f, 2 * kPointSize + 2.5f * kPadY);
}
canvas->restore();
canvas->translate(maxLabelW + kPadX / 2.f, 0.f);
for (int s = 0; s < 2; ++s) {
SkPaint& paint = s ? strokePaint : fillPaint;
SkScalar columnH = 0;
for (int m = 0; m < matrices.count(); ++m) {
columnH = 0;
canvas->save();
canvas->drawText(matrices[m].fLabel, strlen(matrices[m].fLabel),
0, labelPaint.getTextSize() - 1, labelPaint);
canvas->translate(0, kPadY / 2 + kPointSize);
columnH += kPadY / 2 + kPointSize;
for (int lm = 0; lm < localMatrices.count(); ++lm) {
paint.setShader(
SkShader::CreateBitmapShader(bmp,
SkShader::kMirror_TileMode,
SkShader::kRepeat_TileMode,
&localMatrices[lm].fMatrix))->unref();
canvas->save();
canvas->concat(matrices[m].fMatrix);
canvas->drawText(kText, kTextLen, 0, 0, paint);
canvas->drawText(kText, kTextLen, 0, 0, outlinePaint);
canvas->restore();
SkPath path;
path.arcTo(SkRect::MakeXYWH(-0.1f * w, 0.f,
1.2f * w, 2.f * kPointSize),
225.f, 359.f,
false);
path.close();
canvas->translate(0.f, kPointSize + kPadY);
columnH += kPointSize + kPadY;
canvas->save();
canvas->concat(matrices[m].fMatrix);
canvas->drawTextOnPath(kText, kTextLen, path, NULL, paint);
canvas->drawTextOnPath(kText, kTextLen, path, NULL, outlinePaint);
canvas->restore();
SkPaint stroke;
stroke.setStyle(SkPaint::kStroke_Style);
canvas->translate(0.f, kPointSize + kPadY);
columnH += kPointSize + kPadY;
}
canvas->restore();
canvas->translate(w + kPadX, 0.f);
}
if (0 == s) {
canvas->drawLine(0.f, -kPadY, 0.f, columnH + kPadY, outlinePaint);
canvas->translate(kPadX / 2, 0.f);
static const char kFillLabel[] = "Filled";
static const char kStrokeLabel[] = "Stroked";
SkScalar y = columnH + kPadY / 2;
SkScalar fillX = -outlinePaint.measureText(kFillLabel, strlen(kFillLabel)) - kPadX;
SkScalar strokeX = kPadX;
canvas->drawText(kFillLabel, strlen(kFillLabel), fillX, y, labelPaint);
canvas->drawText(kStrokeLabel, strlen(kStrokeLabel), strokeX, y, labelPaint);
}
}
}
SkPath makePath() {
SkPath path;
for (uint32_t cIndex = 0; cIndex < fPathContourCount; ++cIndex) {
uint32_t segments = makeSegmentCount();
for (uint32_t sIndex = 0; sIndex < segments; ++sIndex) {
RandomAddPath addPathType = makeAddPathType();
++fAddCount;
if (fPrintName) {
SkDebugf("%.*s%s\n", fPathDepth * 3, fTab,
gRandomAddPathNames[addPathType]);
}
switch (addPathType) {
case kAddArc: {
SkRect oval = makeRect();
SkScalar startAngle = makeAngle();
SkScalar sweepAngle = makeAngle();
path.addArc(oval, startAngle, sweepAngle);
validate(path);
} break;
case kAddRoundRect1: {
SkRect rect = makeRect();
SkScalar rx = makeScalar(), ry = makeScalar();
SkPath::Direction dir = makeDirection();
path.addRoundRect(rect, rx, ry, dir);
validate(path);
} break;
case kAddRoundRect2: {
SkRect rect = makeRect();
SkScalar radii[8];
makeScalarArray(SK_ARRAY_COUNT(radii), radii);
SkPath::Direction dir = makeDirection();
path.addRoundRect(rect, radii, dir);
validate(path);
} break;
case kAddRRect: {
SkRRect rrect = makeRRect();
SkPath::Direction dir = makeDirection();
path.addRRect(rrect, dir);
validate(path);
} break;
case kAddPoly: {
SkTDArray<SkPoint> points;
makePointArray(&points);
bool close = makeBool();
path.addPoly(&points[0], points.count(), close);
validate(path);
} break;
case kAddPath1:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
SkScalar dx = makeScalar();
SkScalar dy = makeScalar();
SkPath::AddPathMode mode = makeAddPathMode();
path.addPath(src, dx, dy, mode);
--fPathDepth;
validate(path);
}
break;
case kAddPath2:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
SkPath::AddPathMode mode = makeAddPathMode();
path.addPath(src, mode);
--fPathDepth;
validate(path);
}
break;
case kAddPath3:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
SkMatrix matrix = makeMatrix();
SkPath::AddPathMode mode = makeAddPathMode();
path.addPath(src, matrix, mode);
--fPathDepth;
validate(path);
}
break;
case kReverseAddPath:
if (fPathDepth < fPathDepthLimit) {
++fPathDepth;
SkPath src = makePath();
validate(src);
path.reverseAddPath(src);
--fPathDepth;
validate(path);
}
break;
case kMoveToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.moveTo(x, y);
validate(path);
} break;
case kRMoveToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.rMoveTo(x, y);
validate(path);
} break;
case kLineToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.lineTo(x, y);
validate(path);
} break;
case kRLineToPath: {
SkScalar x = makeScalar();
SkScalar y = makeScalar();
path.rLineTo(x, y);
validate(path);
} break;
case kQuadToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.quadTo(pt[0], pt[1]);
validate(path);
} break;
case kRQuadToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.rQuadTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY);
validate(path);
} break;
case kConicToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
SkScalar weight = makeScalar();
path.conicTo(pt[0], pt[1], weight);
validate(path);
} break;
case kRConicToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
SkScalar weight = makeScalar();
path.rConicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, weight);
validate(path);
} break;
case kCubicToPath: {
SkPoint pt[3];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.cubicTo(pt[0], pt[1], pt[2]);
validate(path);
} break;
case kRCubicToPath: {
SkPoint pt[3];
makePointArray(SK_ARRAY_COUNT(pt), pt);
path.rCubicTo(pt[0].fX, pt[0].fY, pt[1].fX, pt[1].fY, pt[2].fX, pt[2].fY);
validate(path);
} break;
case kArcToPath: {
SkPoint pt[2];
makePointArray(SK_ARRAY_COUNT(pt), pt);
SkScalar radius = makeScalar();
path.arcTo(pt[0], pt[1], radius);
validate(path);
} break;
case kArcTo2Path: {
SkRect oval = makeRect();
SkScalar startAngle = makeAngle();
SkScalar sweepAngle = makeAngle();
bool forceMoveTo = makeBool();
path.arcTo(oval, startAngle, sweepAngle, forceMoveTo);
validate(path);
} break;
case kClosePath:
path.close();
validate(path);
break;
}
}
}
return path;
}
void onDraw(SkCanvas* canvas) override {
const char text[] = "Shaded Text";
const int textLen = SK_ARRAY_COUNT(text) - 1;
const int pointSize = 36;
const int w = pointSize * textLen;
const int h = pointSize;
SkPoint pts[2] = {
{ 0, 0 },
{ SkIntToScalar(w), SkIntToScalar(h) }
};
SkScalar textBase = SkIntToScalar(h/2);
SkShader::TileMode tileModes[] = {
SkShader::kClamp_TileMode,
SkShader::kRepeat_TileMode,
SkShader::kMirror_TileMode
};
static const int gradCount = SK_ARRAY_COUNT(gGradData) *
SK_ARRAY_COUNT(gGradMakers);
static const int bmpCount = SK_ARRAY_COUNT(tileModes) *
SK_ARRAY_COUNT(tileModes);
sk_sp<SkShader> shaders[gradCount + bmpCount];
int shdIdx = 0;
for (size_t d = 0; d < SK_ARRAY_COUNT(gGradData); ++d) {
for (size_t m = 0; m < SK_ARRAY_COUNT(gGradMakers); ++m) {
shaders[shdIdx++] = gGradMakers[m](pts,
gGradData[d],
SkShader::kClamp_TileMode);
}
}
SkBitmap bm;
makebm(&bm, w/16, h/4);
for (size_t tx = 0; tx < SK_ARRAY_COUNT(tileModes); ++tx) {
for (size_t ty = 0; ty < SK_ARRAY_COUNT(tileModes); ++ty) {
shaders[shdIdx++] = SkShader::MakeBitmapShader(bm, tileModes[tx], tileModes[ty]);
}
}
SkPaint paint;
paint.setDither(true);
paint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&paint);
paint.setTextSize(SkIntToScalar(pointSize));
canvas->save();
canvas->translate(SkIntToScalar(20), SkIntToScalar(10));
SkPath path;
path.arcTo(SkRect::MakeXYWH(SkIntToScalar(-40), SkIntToScalar(15),
SkIntToScalar(300), SkIntToScalar(90)),
SkIntToScalar(225), SkIntToScalar(90),
false);
path.close();
static const int testsPerCol = 8;
static const int rowHeight = 60;
static const int colWidth = 300;
canvas->save();
for (int s = 0; s < static_cast<int>(SK_ARRAY_COUNT(shaders)); s++) {
canvas->save();
int i = 2*s;
canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
SkIntToScalar((i % testsPerCol) * rowHeight));
paint.setShader(shaders[s]);
canvas->drawText(text, textLen, 0, textBase, paint);
canvas->restore();
canvas->save();
++i;
canvas->translate(SkIntToScalar((i / testsPerCol) * colWidth),
SkIntToScalar((i % testsPerCol) * rowHeight));
canvas->drawTextOnPath(text, textLen, path, nullptr, paint);
canvas->restore();
}
canvas->restore();
}
void WRasterImage::Impl::drawPlainPath(SkPath &p, const WPainterPath& path)
{
const std::vector<WPainterPath::Segment>& segments = path.segments();
if (segments.size() > 0
&& segments[0].type() != WPainterPath::Segment::MoveTo)
p.moveTo(SkDoubleToScalar(0), SkDoubleToScalar(0));
for (unsigned i = 0; i < segments.size(); ++i) {
const WPainterPath::Segment s = segments[i];
switch (s.type()) {
case WPainterPath::Segment::MoveTo:
p.moveTo(SkDoubleToScalar(s.x()), SkDoubleToScalar(s.y()));
break;
case WPainterPath::Segment::LineTo:
p.lineTo(SkDoubleToScalar(s.x()), SkDoubleToScalar(s.y()));
break;
case WPainterPath::Segment::CubicC1: {
const double x1 = s.x();
const double y1 = s.y();
const double x2 = segments[i+1].x();
const double y2 = segments[i+1].y();
const double x3 = segments[i+2].x();
const double y3 = segments[i+2].y();
p.cubicTo(SkDoubleToScalar(x1), SkDoubleToScalar(y1),
SkDoubleToScalar(x2), SkDoubleToScalar(y2),
SkDoubleToScalar(x3), SkDoubleToScalar(y3));
i += 2;
break;
}
case WPainterPath::Segment::CubicC2:
case WPainterPath::Segment::CubicEnd:
assert(false);
case WPainterPath::Segment::ArcC: {
const double x = s.x();
const double y = s.y();
const double width = segments[i+1].x();
const double height = segments[i+1].y();
const double startAngle = segments[i+2].x();
const double sweepAngle = segments[i+2].y();
SkRect rect = SkRect::MakeXYWH(SkDoubleToScalar(x - width),
SkDoubleToScalar(y - height),
SkDoubleToScalar(width * 2.0),
SkDoubleToScalar(height * 2.0));
if (sweepAngle != 360)
p.arcTo(rect,
SkDoubleToScalar(-startAngle), SkDoubleToScalar(-sweepAngle),
false);
else
p.addOval(rect, SkPath::kCCW_Direction);
i += 2;
break;
}
case WPainterPath::Segment::ArcR:
case WPainterPath::Segment::ArcAngleSweep:
assert(false);
case WPainterPath::Segment::QuadC: {
const double x1 = s.x();
const double y1 = s.y();
const double x2 = segments[i+1].x();
const double y2 = segments[i+1].y();
p.quadTo(SkDoubleToScalar(x1), SkDoubleToScalar(y1),
SkDoubleToScalar(x2), SkDoubleToScalar(y2));
i += 1;
break;
}
case WPainterPath::Segment::QuadEnd:
assert(false);
}
}
}