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1 /* | |
2 * Copyright 2014 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 "SkFont.h" | |
9 #include "SkPaint.h" | |
10 #include "SkTypeface.h" | |
11 #include "Test.h" | |
12 | |
13 static bool use_nonlinear_metrics(const SkPaint& paint) { | |
bungeman-skia
2014/05/30 14:33:51
These sound imperative instead of interrogative.
reed1
2014/05/30 14:38:59
Done.
| |
14 return !paint.isSubpixelText() && !paint.isLinearText(); | |
15 } | |
16 | |
17 static bool enable_auto_hints(const SkPaint& paint) { | |
18 return paint.isAutohinted(); | |
19 } | |
20 | |
21 static bool enable_bytecode_hints(const SkPaint& paint) { | |
22 return paint.getHinting() >= SkPaint::kFull_Hinting; | |
23 } | |
24 | |
25 static void test_cachedfont(skiatest::Reporter* reporter, const SkPaint& paint) { | |
26 SkFont* font = const_cast<SkPaint*>(&paint)->testing_getCachedFont(); | |
27 | |
28 REPORTER_ASSERT(reporter, font->getTypeface() == paint.getTypeface()); | |
29 REPORTER_ASSERT(reporter, font->getSize() == paint.getTextSize()); | |
30 REPORTER_ASSERT(reporter, font->getScaleX() == paint.getTextScaleX()); | |
31 REPORTER_ASSERT(reporter, font->getSkewX() == paint.getTextSkewX()); | |
32 | |
33 REPORTER_ASSERT(reporter, font->isVertical() == paint.isVerticalText()); | |
34 REPORTER_ASSERT(reporter, font->isEmbolden() == paint.isFakeBoldText()); | |
35 | |
36 REPORTER_ASSERT(reporter, font->isUseNonLinearMetrics() == use_nonlinear_met rics(paint)); | |
37 REPORTER_ASSERT(reporter, font->isEnableAutoHints() == enable_auto_hints(pai nt)); | |
38 REPORTER_ASSERT(reporter, font->isEnableByteCodeHints() == enable_bytecode_h ints(paint)); | |
39 } | |
40 | |
41 static void test_cachedfont(skiatest::Reporter* reporter) { | |
42 static const char* const faces[] = { | |
43 NULL, // default font | |
44 "Arial", "Times", "Times New Roman", "Helvetica", "Courier", | |
45 "Courier New", "Verdana", "monospace", | |
46 }; | |
47 | |
48 static const struct { | |
49 SkPaint::Hinting hinting; | |
50 unsigned flags; | |
51 } settings[] = { | |
52 { SkPaint::kNo_Hinting, 0 }, | |
53 { SkPaint::kNo_Hinting, SkPaint::kLinearText_Flag }, | |
54 { SkPaint::kNo_Hinting, SkPaint::kSubpixelText_Flag }, | |
55 { SkPaint::kSlight_Hinting, 0 }, | |
56 { SkPaint::kSlight_Hinting, SkPaint::kLinearText_Flag }, | |
57 { SkPaint::kSlight_Hinting, SkPaint::kSubpixelText_Flag }, | |
58 { SkPaint::kNormal_Hinting, 0 }, | |
59 { SkPaint::kNormal_Hinting, SkPaint::kLinearText_Flag }, | |
60 { SkPaint::kNormal_Hinting, SkPaint::kSubpixelText_Flag }, | |
61 }; | |
62 | |
63 static const struct { | |
64 SkScalar fScaleX; | |
65 SkScalar fSkewX; | |
66 } gScaleRec[] = { | |
67 { SK_Scalar1, 0 }, | |
68 { SK_Scalar1/2, 0 }, | |
69 // these two exercise obliquing (skew) | |
70 { SK_Scalar1, -SK_Scalar1/4 }, | |
71 { SK_Scalar1/2, -SK_Scalar1/4 }, | |
72 }; | |
73 | |
74 SkPaint paint; | |
75 char txt[] = "long.text.with.lots.of.dots."; | |
76 | |
77 for (size_t i = 0; i < SK_ARRAY_COUNT(faces); i++) { | |
78 SkAutoTUnref<SkTypeface> face(SkTypeface::CreateFromName(faces[i], SkTyp eface::kNormal)); | |
79 paint.setTypeface(face); | |
80 | |
81 for (size_t j = 0; j < SK_ARRAY_COUNT(settings); j++) { | |
82 paint.setHinting(settings[j].hinting); | |
83 paint.setLinearText((settings[j].flags & SkPaint::kLinearText_Flag) != 0); | |
84 paint.setSubpixelText((settings[j].flags & SkPaint::kSubpixelText_Fl ag) != 0); | |
85 | |
86 for (size_t k = 0; k < SK_ARRAY_COUNT(gScaleRec); ++k) { | |
87 paint.setTextScaleX(gScaleRec[k].fScaleX); | |
88 paint.setTextSkewX(gScaleRec[k].fSkewX); | |
89 | |
90 test_cachedfont(reporter, paint); | |
91 | |
92 SkRect bounds; | |
93 | |
94 // For no hinting and light hinting this should take the | |
95 // optimized generateAdvance path. | |
96 SkScalar width1 = paint.measureText(txt, strlen(txt)); | |
97 | |
98 // Requesting the bounds forces a generateMetrics call. | |
99 SkScalar width2 = paint.measureText(txt, strlen(txt), &bounds); | |
100 | |
101 REPORTER_ASSERT(reporter, width1 == width2); | |
102 | |
103 SkFont* font = paint.testing_getCachedFont(); | |
104 SkScalar font_width1 = font->measureText(txt, strlen(txt), kUTF8 _SkTextEncoding); | |
105 // measureText not yet implemented... | |
106 SkASSERT(font_width1 == -1); | |
107 // REPORTER_ASSERT(reporter, width1 == font_width1); | |
108 } | |
109 } | |
110 } | |
111 } | |
112 | |
113 DEF_TEST(FontObj, reporter) { | |
114 test_cachedfont(reporter); | |
115 } | |
116 | |
117 // need tests for SkStrSearch | |
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