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=78f3c65fa900610bb52518989b547095
6 REG_FIDDLE(Path_arcTo_2_b, 256, 128, false, 0) {
7 void draw(SkCanvas* canvas) {
9 tangentPaint.setAntiAlias(true);
10 SkPaint textPaint(tangentPaint);
11 tangentPaint.setStyle(SkPaint::kStroke_Style);
12 tangentPaint.setColor(SK_ColorGRAY);
13 SkPaint arcPaint(tangentPaint);
14 arcPaint.setStrokeWidth(5);
15 arcPaint.setColor(SK_ColorBLUE);
17 SkPoint pts[] = { {156, 20}, {200, 20}, {170, 50} };
20 path.arcTo(pts[1], pts[2], radius);
21 canvas->drawLine(pts[0], pts[1], tangentPaint);
22 canvas->drawLine(pts[1], pts[2], tangentPaint);
24 (void) path.getLastPt(&lastPt);
25 SkVector radial = pts[2] - pts[1];
26 radial.setLength(radius);
27 SkPoint center = { lastPt.fX - radial.fY, lastPt.fY + radial.fX };
28 canvas->drawLine(lastPt, center, tangentPaint);
29 radial = pts[1] - pts[0];
30 radial.setLength(radius);
31 SkPoint arcStart = { center.fX + radial.fY, center.fY - radial.fX };
32 canvas->drawLine(center, arcStart, tangentPaint);
33 canvas->drawPath(path, arcPaint);
34 canvas->drawString("(x0, y0)", pts[0].fX, pts[0].fY - 7, textPaint);
35 canvas->drawString("(x1, y1)", pts[1].fX + 5, pts[1].fY, textPaint);
36 canvas->drawString("(x2, y2)", pts[2].fX, pts[2].fY + 15, textPaint);
37 canvas->drawString("radius", center.fX + 15, center.fY + 25, textPaint);
38 canvas->drawString("radius", center.fX - 5, center.fY - 20, textPaint);
41 #endif // Disabled until updated to use current API.