123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140 |
- /*
- * Copyright 2012 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/SkPath.h"
- #include "include/core/SkPoint.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/core/SkTypes.h"
- #include "include/private/SkTemplates.h"
- #include <float.h>
- #define STROKE_WIDTH SkIntToScalar(20)
- static void draw_path(SkCanvas* canvas, const SkPath& path, const SkRect& rect,
- SkPaint::Join join, int doFill) {
- SkPaint paint;
- paint.setAntiAlias(true);
- paint.setStyle(doFill ? SkPaint::kStrokeAndFill_Style : SkPaint::kStroke_Style);
- paint.setColor(SK_ColorGRAY);
- paint.setStrokeWidth(STROKE_WIDTH);
- paint.setStrokeJoin(join);
- canvas->drawRect(rect, paint);
- paint.setStyle(SkPaint::kStroke_Style);
- paint.setStrokeWidth(0);
- paint.setColor(SK_ColorRED);
- canvas->drawPath(path, paint);
- paint.setStrokeWidth(3);
- paint.setStrokeJoin(SkPaint::kMiter_Join);
- int n = path.countPoints();
- SkAutoTArray<SkPoint> points(n);
- path.getPoints(points.get(), n);
- canvas->drawPoints(SkCanvas::kPoints_PointMode, n, points.get(), paint);
- }
- /*
- * Test calling SkStroker for rectangles. Cases to cover:
- *
- * geometry: normal, small (smaller than stroke-width), empty, inverted
- * joint-type for the corners
- */
- class StrokeRectGM : public skiagm::GM {
- public:
- StrokeRectGM() {}
- protected:
- SkString onShortName() override {
- return SkString("strokerect");
- }
- SkISize onISize() override {
- return SkISize::Make(1400, 740);
- }
- void onDraw(SkCanvas* canvas) override {
- canvas->drawColor(SK_ColorWHITE);
- canvas->translate(STROKE_WIDTH*3/2, STROKE_WIDTH*3/2);
- SkPaint paint;
- paint.setStyle(SkPaint::kStroke_Style);
- paint.setStrokeWidth(STROKE_WIDTH);
- constexpr SkPaint::Join gJoins[] = {
- SkPaint::kMiter_Join, SkPaint::kRound_Join, SkPaint::kBevel_Join
- };
- constexpr SkScalar W = 80;
- constexpr SkScalar H = 80;
- constexpr SkRect gRects[] = {
- { 0, 0, W, H },
- { W, 0, 0, H },
- { 0, H, W, 0 },
- { 0, 0, STROKE_WIDTH, H },
- { 0, 0, W, STROKE_WIDTH },
- { 0, 0, STROKE_WIDTH/2, STROKE_WIDTH/2 },
- { 0, 0, W, 0 },
- { 0, 0, 0, H },
- { 0, 0, 0, 0 },
- { 0, 0, W, FLT_EPSILON },
- { 0, 0, FLT_EPSILON, H },
- { 0, 0, FLT_EPSILON, FLT_EPSILON },
- };
- for (int doFill = 0; doFill <= 1; ++doFill) {
- for (size_t i = 0; i < SK_ARRAY_COUNT(gJoins); ++i) {
- SkPaint::Join join = gJoins[i];
- paint.setStrokeJoin(join);
- SkAutoCanvasRestore acr(canvas, true);
- for (size_t j = 0; j < SK_ARRAY_COUNT(gRects); ++j) {
- const SkRect& r = gRects[j];
- SkPath path, fillPath;
- path.addRect(r);
- paint.getFillPath(path, &fillPath);
- draw_path(canvas, fillPath, r, join, doFill);
- canvas->translate(W + 2 * STROKE_WIDTH, 0);
- }
- acr.restore();
- canvas->translate(0, H + 2 * STROKE_WIDTH);
- }
- paint.setStyle(SkPaint::kStrokeAndFill_Style);
- }
- }
- private:
- typedef GM INHERITED;
- };
- DEF_GM(return new StrokeRectGM;)
- ///////////////////////////////////////////////////////////////////////////////////////////////////
- /*
- * Exercise rect-stroking (which is specialized from paths) when the resulting stroke-width is
- * non-square. See https://bugs.chromium.org/p/skia/issues/detail?id=5408
- */
- DEF_SIMPLE_GM(strokerect_anisotropic_5408, canvas, 200, 50) {
- SkPaint p;
- p.setStyle(SkPaint::kStroke_Style);
- p.setStrokeWidth(6);
- canvas->scale(10, 1);
- SkRect r = SkRect::MakeXYWH(5, 20, 10, 10);
- canvas->drawRect(r, p);
- }
|