| /* |
| * Copyright 2011 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm.h" |
| #include "SkPath.h" |
| #include "SkRandom.h" |
| #include "SkDashPathEffect.h" |
| #include "SkParsePath.h" |
| |
| #define W 400 |
| #define H 400 |
| #define N 50 |
| |
| static const SkScalar SW = SkIntToScalar(W); |
| static const SkScalar SH = SkIntToScalar(H); |
| |
| static void rnd_rect(SkRect* r, SkPaint* paint, SkRandom& rand) { |
| SkScalar x = rand.nextUScalar1() * W; |
| SkScalar y = rand.nextUScalar1() * H; |
| SkScalar w = rand.nextUScalar1() * (W >> 2); |
| SkScalar h = rand.nextUScalar1() * (H >> 2); |
| SkScalar hoffset = rand.nextSScalar1(); |
| SkScalar woffset = rand.nextSScalar1(); |
| |
| r->set(x, y, x + w, y + h); |
| r->offset(-w/2 + woffset, -h/2 + hoffset); |
| |
| paint->setColor(rand.nextU()); |
| paint->setAlpha(0xFF); |
| } |
| |
| |
| class StrokesGM : public skiagm::GM { |
| public: |
| StrokesGM() {} |
| |
| protected: |
| |
| SkString onShortName() override { |
| return SkString("strokes_round"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(W, H*2); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint paint; |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setStrokeWidth(SkIntToScalar(9)/2); |
| |
| for (int y = 0; y < 2; y++) { |
| paint.setAntiAlias(!!y); |
| SkAutoCanvasRestore acr(canvas, true); |
| canvas->translate(0, SH * y); |
| canvas->clipRect(SkRect::MakeLTRB( |
| SkIntToScalar(2), SkIntToScalar(2) |
| , SW - SkIntToScalar(2), SH - SkIntToScalar(2) |
| )); |
| |
| SkRandom rand; |
| for (int i = 0; i < N; i++) { |
| SkRect r; |
| rnd_rect(&r, &paint, rand); |
| canvas->drawOval(r, paint); |
| rnd_rect(&r, &paint, rand); |
| canvas->drawRoundRect(r, r.width()/4, r.height()/4, paint); |
| rnd_rect(&r, &paint, rand); |
| } |
| } |
| } |
| |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| |
| /* See |
| https://code.google.com/p/chromium/issues/detail?id=422974 and |
| http://jsfiddle.net/1xnku3sg/2/ |
| */ |
| class ZeroLenStrokesGM : public skiagm::GM { |
| SkPath fMoveHfPath, fMoveZfPath, fDashedfPath, fRefPath[4]; |
| SkPath fCubicPath, fQuadPath, fLinePath; |
| protected: |
| void onOnceBeforeDraw() override { |
| |
| SkAssertResult(SkParsePath::FromSVGString("M0,0h0M10,0h0M20,0h0", &fMoveHfPath)); |
| SkAssertResult(SkParsePath::FromSVGString("M0,0zM10,0zM20,0z", &fMoveZfPath)); |
| SkAssertResult(SkParsePath::FromSVGString("M0,0h25", &fDashedfPath)); |
| SkAssertResult(SkParsePath::FromSVGString("M 0 0 C 0 0 0 0 0 0", &fCubicPath)); |
| SkAssertResult(SkParsePath::FromSVGString("M 0 0 Q 0 0 0 0", &fQuadPath)); |
| SkAssertResult(SkParsePath::FromSVGString("M 0 0 L 0 0", &fLinePath)); |
| |
| for (int i = 0; i < 3; ++i) { |
| fRefPath[0].addCircle(i * 10.f, 0, 5); |
| fRefPath[1].addCircle(i * 10.f, 0, 10); |
| fRefPath[2].addRect(i * 10.f - 4, -2, i * 10.f + 4, 6); |
| fRefPath[3].addRect(i * 10.f - 10, -10, i * 10.f + 10, 10); |
| } |
| } |
| |
| SkString onShortName() override { |
| return SkString("zeroPath"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(W, H*2); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint fillPaint, strokePaint, dashPaint; |
| fillPaint.setAntiAlias(true); |
| strokePaint = fillPaint; |
| strokePaint.setStyle(SkPaint::kStroke_Style); |
| for (int i = 0; i < 2; ++i) { |
| fillPaint.setAlpha(255); |
| strokePaint.setAlpha(255); |
| strokePaint.setStrokeWidth(i ? 8.f : 10.f); |
| strokePaint.setStrokeCap(i ? SkPaint::kSquare_Cap : SkPaint::kRound_Cap); |
| canvas->save(); |
| canvas->translate(10 + i * 100.f, 10); |
| canvas->drawPath(fMoveHfPath, strokePaint); |
| canvas->translate(0, 20); |
| canvas->drawPath(fMoveZfPath, strokePaint); |
| dashPaint = strokePaint; |
| const SkScalar intervals[] = { 0, 10 }; |
| dashPaint.setPathEffect(SkDashPathEffect::Create(intervals, 2, 0))->unref(); |
| SkPath fillPath; |
| dashPaint.getFillPath(fDashedfPath, &fillPath); |
| canvas->translate(0, 20); |
| canvas->drawPath(fDashedfPath, dashPaint); |
| canvas->translate(0, 20); |
| canvas->drawPath(fRefPath[i * 2], fillPaint); |
| strokePaint.setStrokeWidth(20); |
| strokePaint.setAlpha(127); |
| canvas->translate(0, 50); |
| canvas->drawPath(fMoveHfPath, strokePaint); |
| canvas->translate(0, 30); |
| canvas->drawPath(fMoveZfPath, strokePaint); |
| canvas->translate(0, 30); |
| fillPaint.setAlpha(127); |
| canvas->drawPath(fRefPath[1 + i * 2], fillPaint); |
| canvas->translate(0, 30); |
| canvas->drawPath(fCubicPath, strokePaint); |
| canvas->translate(0, 30); |
| canvas->drawPath(fQuadPath, strokePaint); |
| canvas->translate(0, 30); |
| canvas->drawPath(fLinePath, strokePaint); |
| canvas->restore(); |
| } |
| } |
| |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| |
| class TeenyStrokesGM : public skiagm::GM { |
| |
| SkString onShortName() override { |
| return SkString("teenyStrokes"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(W, H*2); |
| } |
| |
| static void line(SkScalar scale, SkCanvas* canvas, SkColor color) { |
| SkPaint p; |
| p.setAntiAlias(true); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setColor(color); |
| canvas->translate(50, 0); |
| canvas->save(); |
| p.setStrokeWidth(scale * 5); |
| canvas->scale(1 / scale, 1 / scale); |
| canvas->drawLine(20 * scale, 20 * scale, 20 * scale, 100 * scale, p); |
| canvas->drawLine(20 * scale, 20 * scale, 100 * scale, 100 * scale, p); |
| canvas->restore(); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| line(0.00005f, canvas, SK_ColorBLACK); |
| line(0.000045f, canvas, SK_ColorRED); |
| line(0.0000035f, canvas, SK_ColorGREEN); |
| line(0.000003f, canvas, SK_ColorBLUE); |
| line(0.000002f, canvas, SK_ColorBLACK); |
| } |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| |
| DEF_SIMPLE_GM(CubicStroke, canvas, 384, 384) { |
| SkPaint p; |
| p.setAntiAlias(true); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(1.0720f); |
| SkPath path; |
| path.moveTo(-6000,-6000); |
| path.cubicTo(-3500,5500,-500,5500,2500,-6500); |
| canvas->drawPath(path, p); |
| p.setStrokeWidth(1.0721f); |
| canvas->translate(10, 10); |
| canvas->drawPath(path, p); |
| p.setStrokeWidth(1.0722f); |
| canvas->translate(10, 10); |
| canvas->drawPath(path, p); |
| } |
| |
| DEF_SIMPLE_GM(zerolinestroke, canvas, 90, 120) { |
| SkPaint paint; |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setStrokeWidth(20); |
| paint.setAntiAlias(true); |
| paint.setStrokeCap(SkPaint::kRound_Cap); |
| |
| SkPath path; |
| path.moveTo(30, 90); |
| path.lineTo(30, 90); |
| path.lineTo(60, 90); |
| path.lineTo(60, 90); |
| canvas->drawPath(path, paint); |
| |
| path.reset(); |
| path.moveTo(30, 30); |
| path.lineTo(60, 30); |
| canvas->drawPath(path, paint); |
| |
| path.reset(); |
| path.moveTo(30, 60); |
| path.lineTo(30, 60); |
| path.lineTo(60, 60); |
| canvas->drawPath(path, paint); |
| } |
| |
| class Strokes2GM : public skiagm::GM { |
| SkPath fPath; |
| protected: |
| void onOnceBeforeDraw() override { |
| SkRandom rand; |
| fPath.moveTo(0, 0); |
| for (int i = 0; i < 13; i++) { |
| SkScalar x = rand.nextUScalar1() * (W >> 1); |
| SkScalar y = rand.nextUScalar1() * (H >> 1); |
| fPath.lineTo(x, y); |
| } |
| } |
| |
| |
| SkString onShortName() override { |
| return SkString("strokes_poly"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(W, H*2); |
| } |
| |
| static void rotate(SkScalar angle, SkScalar px, SkScalar py, SkCanvas* canvas) { |
| SkMatrix matrix; |
| matrix.setRotate(angle, px, py); |
| canvas->concat(matrix); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| canvas->drawColor(SK_ColorWHITE); |
| |
| SkPaint paint; |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setStrokeWidth(SkIntToScalar(9)/2); |
| |
| for (int y = 0; y < 2; y++) { |
| paint.setAntiAlias(!!y); |
| SkAutoCanvasRestore acr(canvas, true); |
| canvas->translate(0, SH * y); |
| canvas->clipRect(SkRect::MakeLTRB(SkIntToScalar(2), |
| SkIntToScalar(2), |
| SW - SkIntToScalar(2), |
| SH - SkIntToScalar(2))); |
| |
| SkRandom rand; |
| for (int i = 0; i < N/2; i++) { |
| SkRect r; |
| rnd_rect(&r, &paint, rand); |
| rotate(SkIntToScalar(15), SW/2, SH/2, canvas); |
| canvas->drawPath(fPath, paint); |
| } |
| } |
| } |
| |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static SkRect inset(const SkRect& r) { |
| SkRect rr(r); |
| rr.inset(r.width()/10, r.height()/10); |
| return rr; |
| } |
| |
| class Strokes3GM : public skiagm::GM { |
| static void make0(SkPath* path, const SkRect& bounds, SkString* title) { |
| path->addRect(bounds, SkPath::kCW_Direction); |
| path->addRect(inset(bounds), SkPath::kCW_Direction); |
| title->set("CW CW"); |
| } |
| |
| static void make1(SkPath* path, const SkRect& bounds, SkString* title) { |
| path->addRect(bounds, SkPath::kCW_Direction); |
| path->addRect(inset(bounds), SkPath::kCCW_Direction); |
| title->set("CW CCW"); |
| } |
| |
| static void make2(SkPath* path, const SkRect& bounds, SkString* title) { |
| path->addOval(bounds, SkPath::kCW_Direction); |
| path->addOval(inset(bounds), SkPath::kCW_Direction); |
| title->set("CW CW"); |
| } |
| |
| static void make3(SkPath* path, const SkRect& bounds, SkString* title) { |
| path->addOval(bounds, SkPath::kCW_Direction); |
| path->addOval(inset(bounds), SkPath::kCCW_Direction); |
| title->set("CW CCW"); |
| } |
| |
| static void make4(SkPath* path, const SkRect& bounds, SkString* title) { |
| path->addRect(bounds, SkPath::kCW_Direction); |
| SkRect r = bounds; |
| r.inset(bounds.width() / 10, -bounds.height() / 10); |
| path->addOval(r, SkPath::kCW_Direction); |
| title->set("CW CW"); |
| } |
| |
| static void make5(SkPath* path, const SkRect& bounds, SkString* title) { |
| path->addRect(bounds, SkPath::kCW_Direction); |
| SkRect r = bounds; |
| r.inset(bounds.width() / 10, -bounds.height() / 10); |
| path->addOval(r, SkPath::kCCW_Direction); |
| title->set("CW CCW"); |
| } |
| |
| public: |
| Strokes3GM() {} |
| |
| protected: |
| |
| SkString onShortName() override { |
| return SkString("strokes3"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(1500, 1500); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint origPaint; |
| origPaint.setAntiAlias(true); |
| origPaint.setStyle(SkPaint::kStroke_Style); |
| SkPaint fillPaint(origPaint); |
| fillPaint.setColor(SK_ColorRED); |
| SkPaint strokePaint(origPaint); |
| strokePaint.setColor(sk_tool_utils::color_to_565(0xFF4444FF)); |
| |
| void (*procs[])(SkPath*, const SkRect&, SkString*) = { |
| make0, make1, make2, make3, make4, make5 |
| }; |
| |
| canvas->translate(SkIntToScalar(20), SkIntToScalar(80)); |
| |
| SkRect bounds = SkRect::MakeWH(SkIntToScalar(50), SkIntToScalar(50)); |
| SkScalar dx = bounds.width() * 4/3; |
| SkScalar dy = bounds.height() * 5; |
| |
| for (size_t i = 0; i < SK_ARRAY_COUNT(procs); ++i) { |
| SkPath orig; |
| SkString str; |
| procs[i](&orig, bounds, &str); |
| |
| canvas->save(); |
| for (int j = 0; j < 13; ++j) { |
| strokePaint.setStrokeWidth(SK_Scalar1 * j * j); |
| canvas->drawPath(orig, strokePaint); |
| canvas->drawPath(orig, origPaint); |
| SkPath fill; |
| strokePaint.getFillPath(orig, &fill); |
| canvas->drawPath(fill, fillPaint); |
| canvas->translate(dx + strokePaint.getStrokeWidth(), 0); |
| } |
| canvas->restore(); |
| canvas->translate(0, dy); |
| } |
| } |
| |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| |
| class Strokes4GM : public skiagm::GM { |
| public: |
| Strokes4GM() {} |
| |
| protected: |
| |
| SkString onShortName() override { |
| return SkString("strokes_zoomed"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(W, H*2); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint paint; |
| paint.setStyle(SkPaint::kStroke_Style); |
| paint.setStrokeWidth(0.055f); |
| |
| canvas->scale(1000, 1000); |
| canvas->drawCircle(0, 2, 1.97f, paint); |
| } |
| |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| |
| // Test stroking for curves that produce degenerate tangents when t is 0 or 1 (see bug 4191) |
| class Strokes5GM : public skiagm::GM { |
| public: |
| Strokes5GM() {} |
| |
| protected: |
| |
| SkString onShortName() override { |
| return SkString("zero_control_stroke"); |
| } |
| |
| SkISize onISize() override { |
| return SkISize::Make(W, H*2); |
| } |
| |
| void onDraw(SkCanvas* canvas) override { |
| SkPaint p; |
| p.setColor(SK_ColorRED); |
| p.setAntiAlias(true); |
| p.setStyle(SkPaint::kStroke_Style); |
| p.setStrokeWidth(40); |
| p.setStrokeCap(SkPaint::kButt_Cap); |
| |
| SkPath path; |
| path.moveTo(157.474f,111.753f); |
| path.cubicTo(128.5f,111.5f,35.5f,29.5f,35.5f,29.5f); |
| canvas->drawPath(path, p); |
| path.reset(); |
| path.moveTo(250, 50); |
| path.quadTo(280, 80, 280, 80); |
| canvas->drawPath(path, p); |
| path.reset(); |
| path.moveTo(150, 50); |
| path.conicTo(180, 80, 180, 80, 0.707f); |
| canvas->drawPath(path, p); |
| |
| path.reset(); |
| path.moveTo(157.474f,311.753f); |
| path.cubicTo(157.474f,311.753f,85.5f,229.5f,35.5f,229.5f); |
| canvas->drawPath(path, p); |
| path.reset(); |
| path.moveTo(280, 250); |
| path.quadTo(280, 250, 310, 280); |
| canvas->drawPath(path, p); |
| path.reset(); |
| path.moveTo(180, 250); |
| path.conicTo(180, 250, 210, 280, 0.707f); |
| canvas->drawPath(path, p); |
| } |
| |
| private: |
| typedef skiagm::GM INHERITED; |
| }; |
| |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| static skiagm::GM* F0(void*) { return new StrokesGM; } |
| static skiagm::GM* F1(void*) { return new Strokes2GM; } |
| static skiagm::GM* F2(void*) { return new Strokes3GM; } |
| static skiagm::GM* F3(void*) { return new Strokes4GM; } |
| static skiagm::GM* F4(void*) { return new Strokes5GM; } |
| |
| static skiagm::GMRegistry R0(F0); |
| static skiagm::GMRegistry R1(F1); |
| static skiagm::GMRegistry R2(F2); |
| static skiagm::GMRegistry R3(F3); |
| static skiagm::GMRegistry R4(F4); |
| |
| DEF_GM( return new ZeroLenStrokesGM; ) |
| DEF_GM( return new TeenyStrokesGM; ) |