Point_subtract_operator.cpp 965 B

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  1. // Copyright 2019 Google LLC.
  2. // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
  3. #include "tools/fiddle/examples.h"
  4. // HASH=b6c4943ecd0b2dccf9d220b8944009e0
  5. REG_FIDDLE(Point_subtract_operator, 256, 256, false, 0) {
  6. void draw(SkCanvas* canvas) {
  7. SkPaint paint;
  8. paint.setAntiAlias(true);
  9. SkPoint points[] = { { 3, 1 }, { 4, 2 }, { 5, 1 }, { 7, 3 },
  10. { 6, 4 }, { 7, 5 }, { 5, 7 },
  11. { 4, 6 }, { 3, 7 }, { 1, 5 },
  12. { 2, 4 }, { 1, 3 }, { 3, 1 } };
  13. canvas->scale(30, 15);
  14. paint.setStyle(SkPaint::kStroke_Style);
  15. canvas->drawPoints(SkCanvas::kPolygon_PointMode, SK_ARRAY_COUNT(points), points, paint);
  16. points[1] += points[0] - points[2];
  17. points[2] -= points[3] - points[5];
  18. paint.setColor(SK_ColorRED);
  19. canvas->drawPoints(SkCanvas::kPolygon_PointMode, SK_ARRAY_COUNT(points), points, paint);
  20. }
  21. } // END FIDDLE