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=60a08f3ce75374fc815384616d114df7
6 REG_FIDDLE(Point_Normalize, 256, 256, false, 0) {
7 void draw(SkCanvas* canvas) {
8     SkPaint paint;
9     paint.setAntiAlias(true);
10     const SkPoint lines[][2] = { {{  30, 110 }, { 190,  30 }},
11                                  {{  30, 220 }, { 120, 140 }}};
12     for (auto line : lines) {
13         canvas->drawLine(line[0], line[1], paint);
14         SkVector vector = line[1] - line[0];
15         SkScalar priorLength = SkPoint::Normalize(&vector);
16         SkVector rotate90 = { -vector.fY, vector.fX };
17         rotate90 *= 10.f;
18         canvas->drawLine(line[0] - rotate90, line[0] + rotate90, paint);
19         canvas->drawLine(line[1] - rotate90, line[1] + rotate90, paint);
20         SkString length("length = ");
21         length.appendScalar(priorLength);
22         canvas->drawString(length, line[0].fX + 25, line[0].fY - 4, paint);
23     }
24 }
25 }  // END FIDDLE
26 #endif  // Disabled until updated to use current API.
27