aosp12/external/skia/docs/examples/Matrix_mapVectors_2.cpp

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757 B
C++

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=5754501a00a1323e76353fb53153e939
REG_FIDDLE(Matrix_mapVectors_2, 256, 256, false, 0) {
void draw(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
SkMatrix matrix;
matrix.setScale(2, 3);
SkVector radii[] = {{7, 7}, {3, 3}, {2, 2}, {4, 0}};
for (int i = 0; i < 4; ++i) {
SkRRect rrect;
rrect.setRectRadii({20, 20, 180, 70}, radii);
canvas->drawRRect(rrect, paint);
canvas->translate(0, 60);
matrix.mapVectors(radii, SK_ARRAY_COUNT(radii));
}
}
} // END FIDDLE