1#if 0  // Disabled until updated to use current API.
2// Copyright 2019 Google LLC.
3// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
4#include "tools/fiddle/examples.h"
5// HASH=8b37f4ae7fec1756433c0f984175fb14
6REG_FIDDLE(Matrix_isSimilarity, 256, 256, false, 0) {
7void draw(SkCanvas* canvas) {
8    SkPaint p;
9    p.setAntiAlias(true);
10    SkMatrix m;
11    int below = 175;
12    for (SkScalar sx : { -1, 1 } ) {
13        for (SkScalar sy : { -1, 1 } ) {
14            m.setAll(sx, 1, 128,    1, sy, 32,   0, 0, 1);
15            bool isSimilarity = m.isSimilarity();
16            SkString str;
17            str.printf("sx: %g sy: %g sim: %s", sx, sy, isSimilarity ? "true" : "false");
18            {
19                SkAutoCanvasRestore autoRestore(canvas, true);
20                canvas->concat(m);
21                canvas->drawString(str, 0, 0, p);
22            }
23            if (!isSimilarity) {
24                canvas->drawString(str, 40, below, p);
25                below += 20;
26            }
27        }
28    }
29}
30}  // END FIDDLE
31#endif  // Disabled until updated to use current API.
32