xref: /aosp_15_r20/external/skia/docs/examples/Path_rLineTo.cpp (revision c8dee2aa9b3f27cf6c858bd81872bdeb2c07ed17)
1*c8dee2aaSAndroid Build Coastguard Worker // Copyright 2019 Google LLC.
2*c8dee2aaSAndroid Build Coastguard Worker // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
3*c8dee2aaSAndroid Build Coastguard Worker #include "tools/fiddle/examples.h"
4*c8dee2aaSAndroid Build Coastguard Worker REG_FIDDLE(Path_rLineTo, 256, 128, false, 0) {
draw(SkCanvas * canvas)5*c8dee2aaSAndroid Build Coastguard Worker void draw(SkCanvas* canvas) {
6*c8dee2aaSAndroid Build Coastguard Worker     SkPaint paint;
7*c8dee2aaSAndroid Build Coastguard Worker     paint.setAntiAlias(true);
8*c8dee2aaSAndroid Build Coastguard Worker     paint.setStyle(SkPaint::kStroke_Style);
9*c8dee2aaSAndroid Build Coastguard Worker     SkPath path;
10*c8dee2aaSAndroid Build Coastguard Worker     path.moveTo(10, 98);
11*c8dee2aaSAndroid Build Coastguard Worker     SkScalar x = 0, y = 0;
12*c8dee2aaSAndroid Build Coastguard Worker     for (int i = 10; i < 100; i += 5) {
13*c8dee2aaSAndroid Build Coastguard Worker         x += i * ((i & 2) - 1);
14*c8dee2aaSAndroid Build Coastguard Worker         y += i * (((i + 1) & 2) - 1);
15*c8dee2aaSAndroid Build Coastguard Worker         path.rLineTo(x, y);
16*c8dee2aaSAndroid Build Coastguard Worker     }
17*c8dee2aaSAndroid Build Coastguard Worker     canvas->drawPath(path, paint);
18*c8dee2aaSAndroid Build Coastguard Worker }
19*c8dee2aaSAndroid Build Coastguard Worker }  // END FIDDLE
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