d88c2e8e09
Change-Id: I9a6b2780cfdd91cdd16d5a08eb9ba1214492cb7e Reviewed-on: https://skia-review.googlesource.com/c/skia/+/201982 Commit-Queue: Hal Canary <halcanary@google.com> Reviewed-by: Hal Canary <halcanary@google.com>
22 lines
713 B
C++
22 lines
713 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 "fiddle/examples.h"
|
|
// HASH=c69cd2a590b5733c3cbc92cb9ceed3f5
|
|
REG_FIDDLE(Matrix_mapRectToQuad, 256, 192, false, 0) {
|
|
void draw(SkCanvas* canvas) {
|
|
SkPaint paint;
|
|
paint.setAntiAlias(true);
|
|
SkMatrix matrix;
|
|
matrix.setRotate(60, 128, 128);
|
|
SkRect rect = {50, 50, 150, 150};
|
|
SkPoint pts[4];
|
|
matrix.mapRectToQuad(pts, rect);
|
|
for (int i = 0; i < 4; ++i) {
|
|
canvas->drawCircle(pts[i].fX, pts[i].fY, 3, paint);
|
|
}
|
|
canvas->concat(matrix);
|
|
paint.setStyle(SkPaint::kStroke_Style);
|
|
canvas->drawRect(rect, paint);
|
|
}
|
|
} // END FIDDLE
|