1// Copyright 2021 Google LLC.
2#include "include/core/SkBitmap.h"
3#include "include/core/SkCanvas.h"
4#include "include/core/SkColor.h"
5#include "include/core/SkEncodedImageFormat.h"
6#include "include/core/SkFontMgr.h"
7#include "include/core/SkFontStyle.h"
8#include "include/core/SkImageEncoder.h"
9#include "include/core/SkPaint.h"
10#include "include/core/SkPoint.h"
11#include "include/core/SkRect.h"
12#include "include/core/SkRefCnt.h"
13#include "include/core/SkScalar.h"
14#include "include/core/SkSpan.h"
15#include "include/core/SkStream.h"
16#include "include/core/SkString.h"
17#include "include/core/SkTypeface.h"
18#include "include/core/SkTypes.h"
19#include "tests/Test.h"
20#include "tools/Resources.h"
21
22#include "experimental/sktext/include/Text.h"
23
24#include <string.h>
25#include <algorithm>
26#include <limits>
27#include <memory>
28#include <string>
29#include <utility>
30#include <vector>
31
32struct GrContextOptions;
33
34#define VeryLongCanvasWidth 1000000
35#define TestCanvasWidth 1000
36#define TestCanvasHeight 600
37
38using namespace skia::text;
39
40namespace {
41    bool operator==(SkSpan<const char16_t> a, SkSpan<const char16_t> b) {
42        if (a.size() != b.size()) {
43            return false;
44        }
45        for (size_t i = 0; i < a.size(); ++i) {
46            if (a[i] != b[i]) {
47                return false;
48            }
49        }
50        return true;
51    }
52}
53
54UNIX_ONLY_TEST(SkText_UnicodeText_Flags, reporter) {
55    REPORTER_ASSERT(reporter, true);
56    //                       01234567890  1234567890
57    std::u16string utf16(u"Hello word\nHello world");
58    SkString utf8("Hello word\nHello world");
59    UnicodeText unicodeText16(SkUnicode::Make(), SkSpan<uint16_t>((uint16_t*)utf16.data(), utf16.size()));
60    UnicodeText unicodeText8(SkUnicode::Make(), utf8);
61
62    REPORTER_ASSERT(reporter, unicodeText16.getText16() == unicodeText8.getText16(), "UTF16 and UTF8 texts should be the same\n");
63    auto lineBreak = utf16.find_first_of(u"\n");
64    for (size_t i = 0; i < unicodeText16.getText16().size(); ++i) {
65        if (i == lineBreak) {
66            REPORTER_ASSERT(reporter, unicodeText16.hasProperty(i, CodeUnitFlags::kHardLineBreakBefore), "Pos16 %d should point to hard line break\n", lineBreak);
67            REPORTER_ASSERT(reporter, unicodeText8 .hasProperty(i, CodeUnitFlags::kHardLineBreakBefore), "Pos8 %d should point to hard line break\n", lineBreak);
68        } else {
69            REPORTER_ASSERT(reporter, unicodeText16.hasProperty(i, CodeUnitFlags::kGraphemeStart), "Pos16 %d should be a grapheme start\n", i);
70            REPORTER_ASSERT(reporter, unicodeText8 .hasProperty(i, CodeUnitFlags::kGraphemeStart), "Pos8 %d should be a grapheme start\n", i);
71        }
72    }
73
74    auto space1 = utf16.find_first_of(u" ");
75    auto space2 = utf16.find_last_of(u" ");
76
77    REPORTER_ASSERT(reporter, unicodeText16.hasProperty(space1, CodeUnitFlags::kPartOfWhiteSpace), "Pos16 %d should be a part of whitespaces\n", space1);
78    REPORTER_ASSERT(reporter, unicodeText16.hasProperty(space1 + 1, CodeUnitFlags::kSoftLineBreakBefore), "Pos16 %d should have soft line break before\n", space1 + 1);
79    REPORTER_ASSERT(reporter, unicodeText16.hasProperty(space2, CodeUnitFlags::kPartOfWhiteSpace), "Pos16 %d should be a part of whitespaces\n", space2);
80    REPORTER_ASSERT(reporter, unicodeText16.hasProperty(space2 + 1, CodeUnitFlags::kSoftLineBreakBefore), "Pos16 %d should have soft line break before\n", space2 + 1);
81
82    REPORTER_ASSERT(reporter, unicodeText8 .hasProperty(space1, CodeUnitFlags::kPartOfWhiteSpace), "Pos8 %d should be a part of whitespaces\n", space1);
83    REPORTER_ASSERT(reporter, unicodeText8 .hasProperty(space1 + 1, CodeUnitFlags::kSoftLineBreakBefore), "Pos8 %d should have soft line break before\n", space1 + 1);
84    REPORTER_ASSERT(reporter, unicodeText8 .hasProperty(space2, CodeUnitFlags::kPartOfWhiteSpace), "Pos8 %d should be a part of whitespaces\n", space2);
85    REPORTER_ASSERT(reporter, unicodeText8 .hasProperty(space2 + 1, CodeUnitFlags::kSoftLineBreakBefore), "Pos8 %d should have soft line break before\n", space2 + 1);
86}
87
88// TODO: Test RTL text
89