Factor CSS3 matching rules.
This factors out the CSS3 matching rules, creates tests for it,
and uses it with the GDI font manager.
BUG=chromium:554238,skia:4037
TBR=reed@google.com
No public API changes.
Review URL: https://codereview.chromium.org/1438113002
diff --git a/tests/FontMgrTest.cpp b/tests/FontMgrTest.cpp
index 56a791a..b663b45 100644
--- a/tests/FontMgrTest.cpp
+++ b/tests/FontMgrTest.cpp
@@ -12,6 +12,11 @@
#include "SkFont.h"
#include "SkPaint.h"
+
+#include <initializer_list>
+#include <limits>
+#include <vector>
+
static void test_font(skiatest::Reporter* reporter) {
uint32_t flags = 0;
SkAutoTUnref<SkFont> font(SkFont::Create(nullptr, 24, SkFont::kA8_MaskType, flags));
@@ -111,9 +116,533 @@
}
}
+static void test_matchStyleCSS3(skiatest::Reporter* reporter) {
+ static const SkFontID invalidFontID = std::numeric_limits<SkFontID>::max();
+ static const SkFontStyle invalidFontStyle(101, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+
+ class TestTypeface : public SkTypeface {
+ public:
+ TestTypeface(const SkFontStyle& fontStyle, SkFontID id) : SkTypeface(fontStyle, id, false){}
+ protected:
+ SkStreamAsset* onOpenStream(int* ttcIndex) const override { return nullptr; }
+ SkScalerContext* onCreateScalerContext(const SkDescriptor*) const override {
+ return nullptr;
+ }
+ void onFilterRec(SkScalerContextRec*) const override { }
+ virtual SkAdvancedTypefaceMetrics* onGetAdvancedTypefaceMetrics(
+ PerGlyphInfo,
+ const uint32_t*, uint32_t) const override { return nullptr; }
+ void onGetFontDescriptor(SkFontDescriptor*, bool*) const override { }
+ virtual int onCharsToGlyphs(const void* chars, Encoding encoding,
+ uint16_t glyphs[], int glyphCount) const override {
+ if (glyphs && glyphCount > 0) {
+ sk_bzero(glyphs, glyphCount * sizeof(glyphs[0]));
+ }
+ return 0;
+ }
+ int onCountGlyphs() const override { return 0; };
+ int onGetUPEM() const override { return 0; };
+ class EmptyLocalizedStrings : public SkTypeface::LocalizedStrings {
+ public:
+ bool next(SkTypeface::LocalizedString*) override { return false; }
+ };
+ void onGetFamilyName(SkString* familyName) const override {
+ familyName->reset();
+ }
+ SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override {
+ return new EmptyLocalizedStrings;
+ };
+ int onGetTableTags(SkFontTableTag tags[]) const override { return 0; }
+ size_t onGetTableData(SkFontTableTag, size_t, size_t, void*) const override {
+ return 0;
+ }
+ };
+
+ class TestFontStyleSet : public SkFontStyleSet {
+ public:
+ TestFontStyleSet(std::initializer_list<SkFontStyle> styles) : fStyles(styles) {}
+ int count() override { return static_cast<int>(fStyles.size()); }
+ void getStyle(int index, SkFontStyle* style, SkString*) override {
+ if (style) {
+ *style = fStyles[index];
+ }
+ }
+ SkTypeface* createTypeface(int index) override {
+ if (index < 0 || this->count() <= index) {
+ return new TestTypeface(invalidFontStyle, invalidFontID);
+ }
+ return new TestTypeface(fStyles[index], index);
+ }
+ SkTypeface* matchStyle(const SkFontStyle& pattern) override {
+ return this->matchStyleCSS3(pattern);
+ }
+ private:
+ std::vector<SkFontStyle> fStyles;
+ };
+
+ SkFontStyle condensed_normal_100(SkFontStyle::kThin_Weight, SkFontStyle::kCondensed_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle condensed_normal_900(SkFontStyle::kBlack_Weight, SkFontStyle::kCondensed_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle condensed_italic_100(SkFontStyle::kThin_Weight, SkFontStyle::kCondensed_Width, SkFontStyle::kItalic_Slant);
+ SkFontStyle condensed_italic_900(SkFontStyle::kBlack_Weight, SkFontStyle::kCondensed_Width, SkFontStyle::kItalic_Slant);
+ SkFontStyle expanded_normal_100(SkFontStyle::kThin_Weight, SkFontStyle::kExpanded_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle expanded_normal_900(SkFontStyle::kBlack_Weight, SkFontStyle::kExpanded_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle expanded_italic_100(SkFontStyle::kThin_Weight, SkFontStyle::kExpanded_Width, SkFontStyle::kItalic_Slant);
+ SkFontStyle expanded_italic_900(SkFontStyle::kBlack_Weight, SkFontStyle::kExpanded_Width, SkFontStyle::kItalic_Slant);
+
+ SkFontStyle normal_normal_100(SkFontStyle::kThin_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_200(SkFontStyle::kExtraLight_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_300(SkFontStyle::kLight_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_400(SkFontStyle::kNormal_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_500(SkFontStyle::kMedium_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_600(SkFontStyle::kSemiBold_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_700(SkFontStyle::kBold_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_800(SkFontStyle::kExtraBold_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+ SkFontStyle normal_normal_900(SkFontStyle::kBlack_Weight, SkFontStyle::kNormal_Width, SkFontStyle::kUpright_Slant);
+
+ struct StyleSetTest {
+ TestFontStyleSet styleSet;
+ struct Case {
+ SkFontStyle pattern;
+ SkFontStyle expectedResult;
+ };
+ std::vector<Case> cases;
+ } tests[] = {
+ {
+ { condensed_normal_100,condensed_normal_900,condensed_italic_100,condensed_italic_900,
+ expanded_normal_100, expanded_normal_900, expanded_italic_100, expanded_italic_900 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { condensed_normal_100,condensed_italic_100,expanded_normal_100,expanded_italic_100 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_100 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_100 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_100 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_100 },
+ },
+ },
+
+ {
+ { condensed_normal_900,condensed_italic_900,expanded_normal_900,expanded_italic_900 },
+ {
+ { condensed_normal_100, condensed_normal_900 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_italic_900 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, expanded_normal_900 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_italic_900 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { condensed_normal_100,condensed_normal_900,expanded_normal_100,expanded_normal_900 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_normal_100 },
+ { condensed_italic_900, condensed_normal_900 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_normal_100 },
+ { expanded_italic_900, expanded_normal_900 },
+ },
+ },
+
+ {
+ { condensed_normal_100,expanded_normal_100 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_100 },
+ { condensed_italic_100, condensed_normal_100 },
+ { condensed_italic_900, condensed_normal_100 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_100 },
+ { expanded_italic_100, expanded_normal_100 },
+ { expanded_italic_900, expanded_normal_100 },
+ },
+ },
+
+ {
+ { condensed_normal_900,expanded_normal_900 },
+ {
+ { condensed_normal_100, condensed_normal_900 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_normal_900 },
+ { condensed_italic_900, condensed_normal_900 },
+ { expanded_normal_100, expanded_normal_900 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_normal_900 },
+ { expanded_italic_900, expanded_normal_900 },
+ },
+ },
+
+ {
+ { condensed_italic_100,condensed_italic_900,expanded_italic_100,expanded_italic_900 },
+ {
+ { condensed_normal_100, condensed_italic_100 },
+ { condensed_normal_900, condensed_italic_900 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, expanded_italic_100 },
+ { expanded_normal_900, expanded_italic_900 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { condensed_italic_100,expanded_italic_100 },
+ {
+ { condensed_normal_100, condensed_italic_100 },
+ { condensed_normal_900, condensed_italic_100 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_100 },
+ { expanded_normal_100, expanded_italic_100 },
+ { expanded_normal_900, expanded_italic_100 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_100 },
+ },
+ },
+
+ {
+ { condensed_italic_900,expanded_italic_900 },
+ {
+ { condensed_normal_100, condensed_italic_900 },
+ { condensed_normal_900, condensed_italic_900 },
+ { condensed_italic_100, condensed_italic_900 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, expanded_italic_900 },
+ { expanded_normal_900, expanded_italic_900 },
+ { expanded_italic_100, expanded_italic_900 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { condensed_normal_100,condensed_normal_900,condensed_italic_100,condensed_italic_900 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, condensed_normal_100 },
+ { expanded_normal_900, condensed_normal_900 },
+ { expanded_italic_100, condensed_italic_100 },
+ { expanded_italic_900, condensed_italic_900 },
+ },
+ },
+
+ {
+ { condensed_normal_100,condensed_italic_100 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_100 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_100 },
+ { expanded_normal_100, condensed_normal_100 },
+ { expanded_normal_900, condensed_normal_100 },
+ { expanded_italic_100, condensed_italic_100 },
+ { expanded_italic_900, condensed_italic_100 },
+ },
+ },
+
+ {
+ { condensed_normal_900,condensed_italic_900 },
+ {
+ { condensed_normal_100, condensed_normal_900 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_italic_900 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, condensed_normal_900 },
+ { expanded_normal_900, condensed_normal_900 },
+ { expanded_italic_100, condensed_italic_900 },
+ { expanded_italic_900, condensed_italic_900 },
+ },
+ },
+
+ {
+ { condensed_normal_100,condensed_normal_900 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_normal_100 },
+ { condensed_italic_900, condensed_normal_900 },
+ { expanded_normal_100, condensed_normal_100 },
+ { expanded_normal_900, condensed_normal_900 },
+ { expanded_italic_100, condensed_normal_100 },
+ { expanded_italic_900, condensed_normal_900 },
+ },
+ },
+
+ {
+ { condensed_normal_100 },
+ {
+ { condensed_normal_100, condensed_normal_100 },
+ { condensed_normal_900, condensed_normal_100 },
+ { condensed_italic_100, condensed_normal_100 },
+ { condensed_italic_900, condensed_normal_100 },
+ { expanded_normal_100, condensed_normal_100 },
+ { expanded_normal_900, condensed_normal_100 },
+ { expanded_italic_100, condensed_normal_100 },
+ { expanded_italic_900, condensed_normal_100 },
+ },
+ },
+
+ {
+ { condensed_normal_900 },
+ {
+ { condensed_normal_100, condensed_normal_900 },
+ { condensed_normal_900, condensed_normal_900 },
+ { condensed_italic_100, condensed_normal_900 },
+ { condensed_italic_900, condensed_normal_900 },
+ { expanded_normal_100, condensed_normal_900 },
+ { expanded_normal_900, condensed_normal_900 },
+ { expanded_italic_100, condensed_normal_900 },
+ { expanded_italic_900, condensed_normal_900 },
+ },
+ },
+
+ {
+ { condensed_italic_100,condensed_italic_900 },
+ {
+ { condensed_normal_100, condensed_italic_100 },
+ { condensed_normal_900, condensed_italic_900 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, condensed_italic_100 },
+ { expanded_normal_900, condensed_italic_900 },
+ { expanded_italic_100, condensed_italic_100 },
+ { expanded_italic_900, condensed_italic_900 },
+ },
+ },
+
+ {
+ { condensed_italic_100 },
+ {
+ { condensed_normal_100, condensed_italic_100 },
+ { condensed_normal_900, condensed_italic_100 },
+ { condensed_italic_100, condensed_italic_100 },
+ { condensed_italic_900, condensed_italic_100 },
+ { expanded_normal_100, condensed_italic_100 },
+ { expanded_normal_900, condensed_italic_100 },
+ { expanded_italic_100, condensed_italic_100 },
+ { expanded_italic_900, condensed_italic_100 },
+ },
+ },
+
+ {
+ { condensed_italic_900 },
+ {
+ { condensed_normal_100, condensed_italic_900 },
+ { condensed_normal_900, condensed_italic_900 },
+ { condensed_italic_100, condensed_italic_900 },
+ { condensed_italic_900, condensed_italic_900 },
+ { expanded_normal_100, condensed_italic_900 },
+ { expanded_normal_900, condensed_italic_900 },
+ { expanded_italic_100, condensed_italic_900 },
+ { expanded_italic_900, condensed_italic_900 },
+ },
+ },
+
+ {
+ { expanded_normal_100,expanded_normal_900,expanded_italic_100,expanded_italic_900 },
+ {
+ { condensed_normal_100, expanded_normal_100 },
+ { condensed_normal_900, expanded_normal_900 },
+ { condensed_italic_100, expanded_italic_100 },
+ { condensed_italic_900, expanded_italic_900 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { expanded_normal_100,expanded_italic_100 },
+ {
+ { condensed_normal_100, expanded_normal_100 },
+ { condensed_normal_900, expanded_normal_100 },
+ { condensed_italic_100, expanded_italic_100 },
+ { condensed_italic_900, expanded_italic_100 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_100 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_100 },
+ },
+ },
+
+ {
+ { expanded_normal_900,expanded_italic_900 },
+ {
+ { condensed_normal_100, expanded_normal_900 },
+ { condensed_normal_900, expanded_normal_900 },
+ { condensed_italic_100, expanded_italic_900 },
+ { condensed_italic_900, expanded_italic_900 },
+ { expanded_normal_100, expanded_normal_900 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_italic_900 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { expanded_normal_100,expanded_normal_900 },
+ {
+ { condensed_normal_100, expanded_normal_100 },
+ { condensed_normal_900, expanded_normal_900 },
+ { condensed_italic_100, expanded_normal_100 },
+ { condensed_italic_900, expanded_normal_900 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_normal_100 },
+ { expanded_italic_900, expanded_normal_900 },
+ },
+ },
+
+ {
+ { expanded_normal_100 },
+ {
+ { condensed_normal_100, expanded_normal_100 },
+ { condensed_normal_900, expanded_normal_100 },
+ { condensed_italic_100, expanded_normal_100 },
+ { condensed_italic_900, expanded_normal_100 },
+ { expanded_normal_100, expanded_normal_100 },
+ { expanded_normal_900, expanded_normal_100 },
+ { expanded_italic_100, expanded_normal_100 },
+ { expanded_italic_900, expanded_normal_100 },
+ },
+ },
+
+ {
+ { expanded_normal_900 },
+ {
+ { condensed_normal_100, expanded_normal_900 },
+ { condensed_normal_900, expanded_normal_900 },
+ { condensed_italic_100, expanded_normal_900 },
+ { condensed_italic_900, expanded_normal_900 },
+ { expanded_normal_100, expanded_normal_900 },
+ { expanded_normal_900, expanded_normal_900 },
+ { expanded_italic_100, expanded_normal_900 },
+ { expanded_italic_900, expanded_normal_900 },
+ },
+ },
+
+ {
+ { expanded_italic_100,expanded_italic_900 },
+ {
+ { condensed_normal_100, expanded_italic_100 },
+ { condensed_normal_900, expanded_italic_900 },
+ { condensed_italic_100, expanded_italic_100 },
+ { condensed_italic_900, expanded_italic_900 },
+ { expanded_normal_100, expanded_italic_100 },
+ { expanded_normal_900, expanded_italic_900 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { expanded_italic_100 },
+ {
+ { condensed_normal_100, expanded_italic_100 },
+ { condensed_normal_900, expanded_italic_100 },
+ { condensed_italic_100, expanded_italic_100 },
+ { condensed_italic_900, expanded_italic_100 },
+ { expanded_normal_100, expanded_italic_100 },
+ { expanded_normal_900, expanded_italic_100 },
+ { expanded_italic_100, expanded_italic_100 },
+ { expanded_italic_900, expanded_italic_100 },
+ },
+ },
+
+ {
+ { expanded_italic_900 },
+ {
+ { condensed_normal_100, expanded_italic_900 },
+ { condensed_normal_900, expanded_italic_900 },
+ { condensed_italic_100, expanded_italic_900 },
+ { condensed_italic_900, expanded_italic_900 },
+ { expanded_normal_100, expanded_italic_900 },
+ { expanded_normal_900, expanded_italic_900 },
+ { expanded_italic_100, expanded_italic_900 },
+ { expanded_italic_900, expanded_italic_900 },
+ },
+ },
+
+ {
+ { normal_normal_100, normal_normal_900 },
+ {
+ { normal_normal_300, normal_normal_100 },
+ { normal_normal_400, normal_normal_100 },
+ { normal_normal_500, normal_normal_100 },
+ { normal_normal_600, normal_normal_900 },
+ },
+ },
+
+ {
+ { normal_normal_100, normal_normal_400, normal_normal_900 },
+ {
+ { normal_normal_300, normal_normal_100 },
+ { normal_normal_400, normal_normal_400 },
+ { normal_normal_500, normal_normal_400 },
+ { normal_normal_600, normal_normal_900 },
+ },
+ },
+
+ {
+ { normal_normal_100, normal_normal_500, normal_normal_900 },
+ {
+ { normal_normal_300, normal_normal_100 },
+ { normal_normal_400, normal_normal_500 },
+ { normal_normal_500, normal_normal_500 },
+ { normal_normal_600, normal_normal_900 },
+ },
+ },
+
+ {
+ { },
+ {
+ { normal_normal_300, invalidFontStyle },
+ { normal_normal_400, invalidFontStyle },
+ { normal_normal_500, invalidFontStyle },
+ { normal_normal_600, invalidFontStyle },
+ },
+ },
+ };
+
+ for (StyleSetTest& test : tests) {
+ for (const StyleSetTest::Case testCase : test.cases) {
+ SkAutoTUnref<SkTypeface> typeface(test.styleSet.matchStyle(testCase.pattern));
+ if (typeface) {
+ REPORTER_ASSERT(reporter, typeface->fontStyle() == testCase.expectedResult);
+ } else {
+ REPORTER_ASSERT(reporter, invalidFontStyle == testCase.expectedResult);
+ }
+ }
+ }
+}
+
DEFINE_bool(verboseFontMgr, false, "run verbose fontmgr tests.");
DEF_TEST(FontMgr, reporter) {
+ test_matchStyleCSS3(reporter);
test_fontiter(reporter, FLAGS_verboseFontMgr);
test_alias_names(reporter);
test_font(reporter);