/* * 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/gm.h" #include "include/core/SkCanvas.h" #include "include/core/SkColor.h" #include "include/core/SkPaint.h" #include "include/core/SkPoint.h" #include "include/core/SkScalar.h" #include "include/core/SkSize.h" #include "include/core/SkString.h" #include "include/utils/SkRandom.h" #include <stddef.h> namespace skiagm { class PointsGM : public GM { public: PointsGM() {} protected: SkString onShortName() override { return SkString("points"); } SkISize onISize() override { return SkISize::Make(640, 490); } static void fill_pts(SkPoint pts[], size_t n, SkRandom* rand) { for (size_t i = 0; i < n; i++) { // Compute these independently and store in variables, rather // than in the parameter-passing expression, to get consistent // evaluation order across compilers. SkScalar y = rand->nextUScalar1() * 480; SkScalar x = rand->nextUScalar1() * 640; pts[i].set(x, y); } } void onDraw(SkCanvas* canvas) override { canvas->translate(SK_Scalar1, SK_Scalar1); SkRandom rand; SkPaint p0, p1, p2, p3; const size_t n = 99; p0.setColor(SK_ColorRED); p1.setColor(SK_ColorGREEN); p2.setColor(SK_ColorBLUE); p3.setColor(SK_ColorWHITE); p0.setStrokeWidth(SkIntToScalar(4)); p2.setStrokeCap(SkPaint::kRound_Cap); p2.setStrokeWidth(SkIntToScalar(6)); SkPoint* pts = new SkPoint[n]; fill_pts(pts, n, &rand); canvas->drawPoints(SkCanvas::kPolygon_PointMode, n, pts, p0); canvas->drawPoints(SkCanvas::kLines_PointMode, n, pts, p1); canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, p2); canvas->drawPoints(SkCanvas::kPoints_PointMode, n, pts, p3); delete[] pts; } private: typedef GM INHERITED; }; ////////////////////////////////////////////////////////////////////////////// DEF_GM( return new PointsGM; ) }