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

20 lines
722 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=c3f5faddca466f78278b32b88fd5f5eb
REG_FIDDLE(Matrix_setRSXform, 256, 128, false, 0) {
void draw(SkCanvas* canvas) {
SkPaint paint;
paint.setColor(SK_ColorGRAY);
paint.setAntiAlias(true);
SkRect rect = {20, 20, 100, 100};
canvas->drawRect(rect, paint);
paint.setColor(SK_ColorRED);
SkMatrix matrix;
matrix.setRSXform(SkRSXform::Make(.85f, .25f, rect.centerX(), rect.centerY()));
canvas->concat(matrix);
canvas->translate(-rect.centerX(), -rect.centerY());
canvas->drawRect(rect, paint);
}
} // END FIDDLE