docs/examples/SkFontMgr_example.cpp

// Copyright 2020 Google LLC.
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.
#include "tools/fiddle/examples.h"
REG_FIDDLE(SkFontMgr_example, 1280, 512, true, 0) {
const char* tostr(SkFontStyle::Slant s) {
    switch (s) {
        case SkFontStyle::kUpright_Slant: return "SkFontStyle::kUpright_Slant";
        case SkFontStyle::kItalic_Slant:  return "SkFontStyle::kItalic_Slant";
        case SkFontStyle::kOblique_Slant: return "SkFontStyle::kOblique_Slant";
        default: return "";
    }
}

void draw(SkCanvas* canvas) {
    SkDebugf("Using a platform specific fontMgr;\n\n");

    for (int i = 0; i < fontMgr->countFamilies(); ++i) {
        SkString familyName;
        fontMgr->getFamilyName(i, &familyName);
        sk_sp<SkFontStyleSet> styleSet(fontMgr->createStyleSet(i));
        int N = styleSet->count();
        for (int j = 0; j < N; ++j) {
            SkFontStyle fontStyle;
            SkString style;
            styleSet->getStyle(j, &fontStyle, &style);
            SkDebugf(
                    "SkFont font(fontMgr->legacyMakeTypeface(\"%s\",\n"
                    "                                        SkFontStyle(%3d, %1d, %-27s));\n",
                    familyName.c_str(),
                    fontStyle.weight(),
                    fontStyle.width(),
                    tostr(fontStyle.slant()));
        }
        SkDebugf("\n");
    }
}
}  // END FIDDLE