Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 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. |
Mike Klein | c0bd9f9 | 2019-04-23 12:05:21 -0500 | [diff] [blame] | 4 | #include "tools/fiddle/examples.h" |
Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 5 | // HASH=386000684073fccabc224d7d6dc81cd9 |
Hal Canary | a7181e7c | 2019-03-18 16:06:34 -0400 | [diff] [blame] | 6 | REG_FIDDLE(Path_arcTo_2_a, 256, 226, false, 0) { |
Hal Canary | 8751512 | 2019-03-15 14:22:51 -0400 | [diff] [blame] | 7 | void draw(SkCanvas* canvas) { |
| 8 | SkPaint tangentPaint; |
| 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); |
| 16 | SkPath path; |
| 17 | SkPoint pts[] = { {56, 20}, {200, 20}, {90, 190} }; |
| 18 | SkScalar radius = 50; |
| 19 | path.moveTo(pts[0]); |
| 20 | path.arcTo(pts[1], pts[2], radius); |
| 21 | canvas->drawLine(pts[0], pts[1], tangentPaint); |
| 22 | canvas->drawLine(pts[1], pts[2], tangentPaint); |
| 23 | SkPoint lastPt; |
| 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->drawCircle(center, radius, tangentPaint); |
| 29 | canvas->drawLine(lastPt, center, tangentPaint); |
| 30 | radial = pts[1] - pts[0]; |
| 31 | radial.setLength(radius); |
| 32 | SkPoint arcStart = { center.fX + radial.fY, center.fY - radial.fX }; |
| 33 | canvas->drawLine(center, arcStart, tangentPaint); |
| 34 | canvas->drawPath(path, arcPaint); |
| 35 | canvas->drawString("(x0, y0)", pts[0].fX - 5, pts[0].fY, textPaint); |
| 36 | canvas->drawString("(x1, y1)", pts[1].fX + 5, pts[1].fY, textPaint); |
| 37 | canvas->drawString("(x2, y2)", pts[2].fX, pts[2].fY + 15, textPaint); |
| 38 | canvas->drawString("radius", center.fX + 15, center.fY + 25, textPaint); |
| 39 | canvas->drawString("radius", center.fX - 3, center.fY - 16, textPaint); |
| 40 | } |
| 41 | } // END FIDDLE |
| 42 | #endif // Disabled until updated to use current API. |