Canvas_drawBitmapLattice.cpp 1.5 KB

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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=c5bfa944e17ba4a4400dc799f032069c
  5. REG_FIDDLE(Canvas_drawBitmapLattice, 256, 128, false, 0) {
  6. void draw(SkCanvas* canvas) {
  7. SkIRect center = { 20, 10, 50, 40 };
  8. SkBitmap bitmap;
  9. bitmap.allocPixels(SkImageInfo::MakeN32Premul(60, 60));
  10. SkCanvas bitCanvas(bitmap);
  11. SkPaint paint;
  12. SkColor gray = 0xFF000000;
  13. int left = 0;
  14. for (auto right: { center.fLeft, center.fRight, bitmap.width() } ) {
  15. int top = 0;
  16. for (auto bottom: { center.fTop, center.fBottom, bitmap.height() } ) {
  17. paint.setColor(gray);
  18. bitCanvas.drawIRect(SkIRect::MakeLTRB(left, top, right, bottom), paint);
  19. gray += 0x001f1f1f;
  20. top = bottom;
  21. }
  22. left = right;
  23. }
  24. const int xDivs[] = { center.fLeft, center.fRight };
  25. const int yDivs[] = { center.fTop, center.fBottom };
  26. SkCanvas::Lattice::RectType fillTypes[3][3];
  27. memset(fillTypes, 0, sizeof(fillTypes));
  28. fillTypes[1][1] = SkCanvas::Lattice::kTransparent;
  29. SkColor dummy[9]; // temporary pending bug fix
  30. SkCanvas::Lattice lattice = { xDivs, yDivs, fillTypes[0], SK_ARRAY_COUNT(xDivs),
  31. SK_ARRAY_COUNT(yDivs), nullptr, dummy };
  32. for (auto dest: { 20, 30, 40, 60, 90 } ) {
  33. canvas->drawBitmapLattice(bitmap, lattice, SkRect::MakeWH(dest, 110 - dest), nullptr);
  34. canvas->translate(dest + 4, 0);
  35. }
  36. }
  37. } // END FIDDLE