OLD | NEW |
| (Empty) |
1 /* | |
2 * Copyright 2011-2016 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #include "SkPaint.h" | |
9 #include "Test.h" | |
10 | |
11 static void test_monotonic(skiatest::Reporter* reporter, | |
12 const SkPaint& paint, | |
13 const char* msg) { | |
14 const char* text = "sdfkljAKLDFJKEWkldfjlk#$%&sdfs.dsj"; | |
15 const size_t length = strlen(text); | |
16 const SkScalar width = paint.measureText(text, length); | |
17 | |
18 SkScalar mm = 0; | |
19 size_t nn = 0; | |
20 const SkScalar step = SkMaxScalar(width / 10, SK_Scalar1); | |
21 for (SkScalar w = 0; w <= width; w += step) { | |
22 SkScalar m; | |
23 const size_t n = paint.breakText(text, length, w, &m); | |
24 | |
25 REPORTER_ASSERT_MESSAGE(reporter, n <= length, msg); | |
26 REPORTER_ASSERT_MESSAGE(reporter, m <= width, msg); | |
27 | |
28 if (n == 0) { | |
29 REPORTER_ASSERT_MESSAGE(reporter, m == 0, msg); | |
30 } else { | |
31 // now assert that we're monotonic | |
32 if (n == nn) { | |
33 REPORTER_ASSERT_MESSAGE(reporter, m == mm, msg); | |
34 } else { | |
35 REPORTER_ASSERT_MESSAGE(reporter, n > nn, msg); | |
36 REPORTER_ASSERT_MESSAGE(reporter, m > mm, msg); | |
37 } | |
38 } | |
39 nn = n; | |
40 mm = m; | |
41 } | |
42 } | |
43 | |
44 static void test_eq_measure_text(skiatest::Reporter* reporter, | |
45 const SkPaint& paint, | |
46 const char* msg) { | |
47 const char* text = "The ultimate measure of a man is not where he stands in
moments of comfort " | |
48 "and convenience, but where he stands at times of challenge and controve
rsy."; | |
49 const size_t length = strlen(text); | |
50 const SkScalar width = paint.measureText(text, length); | |
51 | |
52 SkScalar mm; | |
53 const size_t length2 = paint.breakText(text, length, width, &mm); | |
54 REPORTER_ASSERT_MESSAGE(reporter, length2 == length, msg); | |
55 REPORTER_ASSERT_MESSAGE(reporter, mm == width, msg); | |
56 } | |
57 | |
58 static void test_long_text(skiatest::Reporter* reporter, | |
59 const SkPaint& paint, | |
60 const char* msg) { | |
61 static const int kSize = 16 * 1024; | |
62 SkAutoMalloc block(kSize); | |
63 memset(block.get(), 'a', kSize - 1); | |
64 char* text = static_cast<char*>(block.get()); | |
65 text[kSize - 1] = '\0'; | |
66 const SkScalar width = paint.measureText(text, kSize); | |
67 | |
68 SkScalar mm; | |
69 const size_t length = paint.breakText(text, kSize, width, &mm); | |
70 REPORTER_ASSERT_MESSAGE(reporter, length == kSize, msg); | |
71 REPORTER_ASSERT_MESSAGE(reporter, mm == width, msg); | |
72 } | |
73 | |
74 DEF_TEST(PaintBreakText, reporter) { | |
75 SkPaint paint; | |
76 test_monotonic(reporter, paint, "default"); | |
77 test_eq_measure_text(reporter, paint, "default"); | |
78 test_long_text(reporter, paint, "default"); | |
79 paint.setTextSize(SkIntToScalar(1 << 17)); | |
80 test_monotonic(reporter, paint, "huge text size"); | |
81 test_eq_measure_text(reporter, paint, "huge text size"); | |
82 paint.setTextSize(0); | |
83 test_monotonic(reporter, paint, "zero text size"); | |
84 paint.setVerticalText(true); | |
85 paint.setTextSize(SkIntToScalar(100)); | |
86 test_monotonic(reporter, paint, "vertical"); | |
87 test_eq_measure_text(reporter, paint, "vertical"); | |
88 } | |
OLD | NEW |