blob: 2af55cb9e9f5d17797810b43aa1e4e99cfa4f7d5 [file] [log] [blame]
/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkPath.h"
#include "include/core/SkRect.h"
#include "include/core/SkScalar.h"
#include "include/core/SkString.h"
#include "include/utils/SkParsePath.h"
#include "tests/Test.h"
#include <array>
#include <cstddef>
static void test_to_from(skiatest::Reporter* reporter, const SkPath& path) {
SkString str = SkParsePath::ToSVGString(path);
SkPath path2;
bool success = SkParsePath::FromSVGString(str.c_str(), &path2);
REPORTER_ASSERT(reporter, success);
SkString str2 = SkParsePath::ToSVGString(path2);
REPORTER_ASSERT(reporter, str == str2);
#if 0 // closed paths are not equal, the iter explicitly gives the closing
// edge, even if it is not in the path.
REPORTER_ASSERT(reporter, path == path2);
if (path != path2) {
SkDebugf("str1=%s\nstr2=%s\n", str.c_str(), str2.c_str());
}
#endif
}
static struct {
const char* fStr;
const SkRect fBounds;
} gRec[] = {
{ "M1,1 l-2.58-2.828-3.82-0.113, 1.9-3.3223-1.08-3.6702, 3.75,0.7744,3.16-2.1551,"
"0.42,3.8008,3.02,2.3384-3.48,1.574-1.29,3.601z",
{ -5.39999962f, -10.3142f, 5.77000046f, 1.f } },
{ "", { 0, 0, 0, 0 } },
{ "M0,0L10,10", { 0, 0, SkIntToScalar(10), SkIntToScalar(10) } },
{ "M-5.5,-0.5 Q 0 0 6,6.50",
{ -5.5f, -0.5f,
6, 6.5f } }
};
DEF_TEST(ParsePath, reporter) {
for (size_t i = 0; i < std::size(gRec); i++) {
SkPath path;
bool success = SkParsePath::FromSVGString(gRec[i].fStr, &path);
REPORTER_ASSERT(reporter, success);
const SkRect& expectedBounds = gRec[i].fBounds;
const SkRect& pathBounds = path.getBounds();
REPORTER_ASSERT(reporter, expectedBounds == pathBounds);
test_to_from(reporter, path);
}
SkRect r;
r.setLTRB(0, 0, 10, 10.5f);
SkPath p;
p.addRect(r);
test_to_from(reporter, p);
p.addOval(r);
test_to_from(reporter, p);
p.addRoundRect(r, 4, 4.5f);
test_to_from(reporter, p);
}
DEF_TEST(ParsePath_invalid, r) {
SkPath path;
// This is an invalid SVG string, but the test verifies that we do not
// crash.
bool success = SkParsePath::FromSVGString("M 5", &path);
REPORTER_ASSERT(r, !success);
}
DEF_TEST(ParsePathOptionalCommand, r) {
struct {
const char* fStr;
int fVerbs;
int fPoints;
} gTests[] = {
{ "", 0, 0 },
{ "H100 200 ", 3, 3 },
{ "H-100-200", 3, 3 },
{ "H+100+200", 3, 3 },
{ "H.10.20" , 3, 3 },
{ "H-.10-.20", 3, 3 },
{ "H+.10+.20", 3, 3 },
{ "L100 100 200 200" , 3, 3 },
{ "L-100-100-200-200", 3, 3 },
{ "L+100+100+200+200", 3, 3 },
{ "L.10.10.20.20" , 3, 3 },
{ "L-.10-.10-.20-.20", 3, 3 },
{ "L+.10+.10+.20+.20", 3, 3 },
{ "C100 100 200 200 300 300 400 400 500 500 600 600" , 3, 7 },
{ "C100-100-200-200-300-300-400-400-500-500-600-600" , 3, 7 },
{ "C100+100+200+200+300+300+400+400+500+500+600+600" , 3, 7 },
{ "C.10.10.20.20.30.30.40.40.50.50.60.60" , 3, 7 },
{ "C-.10-.10-.20-.20-.30-.30-.40-.40-.50-.50-.60-.60", 3, 7 },
{ "C+.10+.10+.20+.20+.30+.30+.40+.40+.50+.50+.60+.60", 3, 7 },
{ "c-1.49.71-2.12 2.5-1.4 4 .71 1.49 2.5 2.12 4 1.4z", 4, 7 },
};
SkPath path;
for (size_t i = 0; i < std::size(gTests); ++i) {
REPORTER_ASSERT(r, SkParsePath::FromSVGString(gTests[i].fStr, &path));
REPORTER_ASSERT(r, path.countVerbs() == gTests[i].fVerbs);
REPORTER_ASSERT(r, path.countPoints() == gTests[i].fPoints);
}
}
DEF_TEST(ParsePathArcFlags, r) {
const char* arcs = "M10 10a2.143 2.143 0 100-4.285 2.143 2.143 0 000 4.286";
SkPath path;
REPORTER_ASSERT(r, SkParsePath::FromSVGString(arcs, &path));
// Arcs decompose to two conics.
REPORTER_ASSERT(r, path.countVerbs() == 5);
// One for move, 2x per conic.
REPORTER_ASSERT(r, path.countPoints() == 9);
}