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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "DMFontMgr.h"
#include "SkFontDescriptor.h"
#include "sk_tool_utils.h"
namespace {
static constexpr const char* kFamilyNames[] = {
"Toy Liberation Sans",
"Toy Liberation Serif",
"Toy Liberation Mono",
};
class FontStyleSet final : public SkFontStyleSet {
public:
explicit FontStyleSet(int familyIndex) {
using sk_tool_utils::create_portable_typeface;
const char* familyName = kFamilyNames[familyIndex];
fTypefaces[0] = create_portable_typeface(familyName, SkFontStyle::Normal());
fTypefaces[1] = create_portable_typeface(familyName, SkFontStyle::Bold());
fTypefaces[2] = create_portable_typeface(familyName, SkFontStyle::Italic());
fTypefaces[3] = create_portable_typeface(familyName, SkFontStyle::BoldItalic());
}
int count() override { return 4; }
void getStyle(int index, SkFontStyle* style, SkString* name) override {
switch (index) {
default:
case 0: if (style) { *style = SkFontStyle::Normal(); }
if (name) { *name = "Normal"; }
break;
case 1: if (style) { *style = SkFontStyle::Bold(); }
if (name) { *name = "Bold"; }
break;
case 2: if (style) { *style = SkFontStyle::Italic(); }
if (name) { *name = "Italic"; }
break;
case 3: if (style) { *style = SkFontStyle::BoldItalic(); }
if (name) { *name = "BoldItalic"; }
break;
}
}
SkTypeface* createTypeface(int index) override {
return SkRef(fTypefaces[index].get());
}
SkTypeface* matchStyle(const SkFontStyle& pattern) override {
return this->matchStyleCSS3(pattern);
}
private:
sk_sp<SkTypeface> fTypefaces[4];
};
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ //
class FontMgr final : public SkFontMgr {
public:
FontMgr() {
fFamilies[0] = sk_make_sp<FontStyleSet>(0);
fFamilies[1] = sk_make_sp<FontStyleSet>(1);
fFamilies[2] = sk_make_sp<FontStyleSet>(2);
}
int onCountFamilies() const override { return SK_ARRAY_COUNT(fFamilies); }
void onGetFamilyName(int index, SkString* familyName) const override {
*familyName = kFamilyNames[index];
}
SkFontStyleSet* onCreateStyleSet(int index) const override {
return SkRef(fFamilies[index].get());
}
SkFontStyleSet* onMatchFamily(const char familyName[]) const override {
if (familyName) {
if (strstr(familyName, "ans")) { return this->createStyleSet(0); }
if (strstr(familyName, "erif")) { return this->createStyleSet(1); }
if (strstr(familyName, "ono")) { return this->createStyleSet(2); }
}
return this->createStyleSet(0);
}
SkTypeface* onMatchFamilyStyle(const char familyName[],
const SkFontStyle& style) const override {
sk_sp<SkFontStyleSet> styleSet(this->matchFamily(familyName));
return styleSet->matchStyle(style);
}
SkTypeface* onMatchFamilyStyleCharacter(const char familyName[],
const SkFontStyle& style,
const char* bcp47[], int bcp47Count,
SkUnichar character) const override {
(void)bcp47;
(void)bcp47Count;
(void)character;
return this->matchFamilyStyle(familyName, style);
}
SkTypeface* onMatchFaceStyle(const SkTypeface* tf,
const SkFontStyle& style) const override {
SkString familyName;
tf->getFamilyName(&familyName);
return this->matchFamilyStyle(familyName.c_str(), style);
}
sk_sp<SkTypeface> onMakeFromData(sk_sp<SkData>, int ttcIndex) const override {
return nullptr;
}
sk_sp<SkTypeface> onMakeFromStreamIndex(std::unique_ptr<SkStreamAsset>,
int ttcIndex) const override {
return nullptr;
}
sk_sp<SkTypeface> onMakeFromStreamArgs(std::unique_ptr<SkStreamAsset>,
const SkFontArguments&) const override {
return nullptr;
}
sk_sp<SkTypeface> onMakeFromFontData(std::unique_ptr<SkFontData>) const override {
return nullptr;
}
sk_sp<SkTypeface> onMakeFromFile(const char path[], int ttcIndex) const override {
return nullptr;
}
sk_sp<SkTypeface> onLegacyMakeTypeface(const char familyName[],
SkFontStyle style) const override {
return sk_sp<SkTypeface>(this->matchFamilyStyle(familyName, style));
}
private:
sk_sp<FontStyleSet> fFamilies[3];
};
}
namespace DM {
sk_sp<SkFontMgr> MakeFontMgr() { return sk_make_sp<FontMgr>(); }
} // namespace DM
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