aosp12/external/skia/docs/examples/Path_Iter_const_SkPath.cpp

34 lines
1.3 KiB
C++

// Copyright 2019 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
// HASH=13044dbf68885c0f15322c0633b633a3
REG_FIDDLE(Path_Iter_const_SkPath, 256, 256, true, 0) {
void draw(SkCanvas* canvas) {
auto debugster = [](const char* prefix, SkPath::Iter& iter) -> void {
SkDebugf("%s:\n", prefix);
const char* verbStr[] = { "Move", "Line", "Quad", "Conic", "Cubic", "Close", "Done" };
const int pointCount[] = { 1 , 2 , 3 , 3 , 4 , 1 , 0 };
SkPath::Verb verb;
do {
SkPoint points[4];
verb = iter.next(points);
SkDebugf("k%s_Verb ", verbStr[(int) verb]);
for (int i = 0; i < pointCount[(int) verb]; ++i) {
SkDebugf("{%g, %g}, ", points[i].fX, points[i].fY);
}
if (SkPath::kConic_Verb == verb) {
SkDebugf("weight = %g", iter.conicWeight());
}
SkDebugf("\n");
} while (SkPath::kDone_Verb != verb);
SkDebugf("\n");
};
SkPath path;
path.quadTo(10, 20, 30, 40);
SkPath::Iter openIter(path, false);
debugster("open", openIter);
SkPath::Iter closedIter(path, true);
debugster("closed", closedIter);
}
} // END FIDDLE