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#include "common.h"

#include <include/core/SkFontMetrics.h>

#include <include/ports/SkFontMgr_directory.h>

#include <include/ports/SkFontMgr_empty.h>

#include <pybind11/stl.h>

#include <pybind11/stl_bind.h>

#include <pybind11/iostream.h>

#ifdef __linux__

#include <freetype/freetype.h>

#include <freetype/ftcolor.h>

#include <src/ports/SkFontHost_FreeType_common.h>

#endif

#ifdef __APPLE__

#include "include/ports/SkFontMgr_mac_ct.h"

#endif

#ifdef __linux__

#include "include/ports/SkFontMgr_fontconfig.h"

#include "include/ports/SkFontScanner_FreeType.h"

#endif

#ifdef _WIN32

#include "include/ports/SkTypeface_win.h"

#endif

#include <mutex>

namespace {

bool g_factory_called = false;

} // namespace

static sk_sp<SkFontMgr> fontmgr_factory() {

#if defined(__APPLE__)

return SkFontMgr_New_CoreText(nullptr);

#elif defined(__linux__)

return SkFontMgr_New_FontConfig(nullptr, SkFontScanner_Make_FreeType());

#elif defined(_WIN32)

return SkFontMgr_New_DirectWrite();

#else

return SkFontMgr_New_Custom_Empty(); /* last resort: SkFontMgr::RefEmpty(); */

#endif

}

sk_sp<SkFontMgr> SkFontMgr_RefDefault() {

static std::once_flag flag;

static sk_sp<SkFontMgr> mgr;

std::call_once(flag, [] {

mgr = fontmgr_factory();

g_factory_called = true;

});

return mgr;

}

using Axis = SkFontParameters::Variation::Axis;

using Coordinate = SkFontArguments::VariationPosition::Coordinate;

PYBIND11_MAKE_OPAQUE(std::vector<Coordinate>);

namespace {

void SetVariationPositionCoordinates(

SkFontArguments::VariationPosition& vp,

const std::vector<Coordinate>& coords) {

vp.coordinates = &coords[0];

vp.coordinateCount = coords.size();

}

py::tuple SkFontStyleSet_getStyle(SkFontStyleSet* self, int index) {

SkFontStyle style;

SkString name;

if (index < 0 || index >= self->count())

throw py::index_error();

self->getStyle(index, &style, &name);

return py::make_tuple(style, py::str(name.c_str(), name.size()));

}

py::str SkFontMgr_getFamilyName(const SkFontMgr& fontmgr, int index) {

SkString familyName;

if (index < 0 || index >= fontmgr.countFamilies())

throw py::index_error();

fontmgr.getFamilyName(index, &familyName);

return py::str(familyName.c_str(), familyName.size());

}

sk_sp<SkTypeface> SkTypeface_MakeFromName(

py::object familyName,

const SkFontStyle* fontStyle) {

return SkFontMgr_RefDefault()->legacyMakeTypeface(

(familyName.is_none()) ?

nullptr : familyName.cast<std::string>().c_str(),

(fontStyle) ? *fontStyle : SkFontStyle());

}

} // namespace

namespace {

/* class OneFontStyleSet and OneFontMgr verbatim from

skia's chrome/m128:example/external_client/src/shape_text.cpp

class OneFontStyleSet : public SkFontStyleSet {

public:

explicit OneFontStyleSet(sk_sp<SkTypeface> face) : face_(face) {}

protected:

int count() override { return 1; }

void getStyle(int, SkFontStyle* out_style, SkString*) override {

*out_style = SkFontStyle();

}

sk_sp<SkTypeface> createTypeface(int index) override { return face_; }

sk_sp<SkTypeface> matchStyle(const SkFontStyle&) override { return face_; }

private:

sk_sp<SkTypeface> face_;

};

class OneFontMgr : public SkFontMgr {

public:

explicit OneFontMgr(sk_sp<SkTypeface> face)

: face_(face), style_set_(sk_make_sp<OneFontStyleSet>(face)) {}

protected:

int onCountFamilies() const override { return 1; }

void onGetFamilyName(int index, SkString* familyName) const override {

*familyName = SkString("the-only-font-I-have");

}

sk_sp<SkFontStyleSet> onCreateStyleSet(int index) const override {

return style_set_;

}

sk_sp<SkFontStyleSet> onMatchFamily(const char[]) const override {

return style_set_;

}

sk_sp<SkTypeface> onMatchFamilyStyle(const char[],

const SkFontStyle&) const override {

return face_;

}

sk_sp<SkTypeface> onMatchFamilyStyleCharacter(

const char familyName[], const SkFontStyle& style, const char* bcp47[],

int bcp47Count, SkUnichar character) const override {

return face_;

}

sk_sp<SkTypeface> onLegacyMakeTypeface(const char[],

SkFontStyle) const override {

return face_;

}

sk_sp<SkTypeface> onMakeFromData(sk_sp<SkData>, int) const override {

std::abort();

return nullptr;

}

sk_sp<SkTypeface> onMakeFromStreamIndex(std::unique_ptr<SkStreamAsset>,

int) const override {

std::abort();

return nullptr;

}

sk_sp<SkTypeface> onMakeFromStreamArgs(

std::unique_ptr<SkStreamAsset>, const SkFontArguments&) const override {

std::abort();

return nullptr;

}

sk_sp<SkTypeface> onMakeFromFile(const char[], int) const override {

std::abort();

return nullptr;

}

private:

sk_sp<SkTypeface> face_;

sk_sp<SkFontStyleSet> style_set_;

};

/* Adapted from skia's chrome/m128:example/external_client/src/shape_text.cpp */

/* Forward declaration */

sk_sp<SkFontMgr> OneFontMgr_New_Custom_Empty(sk_sp<SkData> font_data);

sk_sp<SkFontMgr> OneFontMgr_New_Custom_Empty(char* argv1) {

SkFILEStream input(argv1);

if (!input.isValid()) {

printf("Cannot open input file %s\n", argv1);

return nullptr;

}

sk_sp<SkData> font_data = SkData::MakeFromStream(&input, input.getLength());

return OneFontMgr_New_Custom_Empty(font_data);

}

sk_sp<SkFontMgr> OneFontMgr_New_Custom_Empty(sk_sp<SkData> font_data) {

sk_sp<SkFontMgr> mgr = SkFontMgr_New_Custom_Empty();

sk_sp<SkTypeface> face = mgr->makeFromData(font_data);

if (!face) {

printf("input font stream was not parsable by Freetype\n");

return nullptr;

}

return sk_make_sp<OneFontMgr>(face);

}

} // namespace

void initFont(py::module &m) {

// FontStyle

py::class_<SkFontStyle> fontstyle(m, "FontStyle");

py::enum_<SkFontStyle::Weight>(fontstyle, "Weight", py::arithmetic())

.value("kInvisible_Weight", SkFontStyle::Weight::kInvisible_Weight)

.value("kThin_Weight", SkFontStyle::Weight::kThin_Weight)

.value("kExtraLight_Weight", SkFontStyle::Weight::kExtraLight_Weight)

.value("kLight_Weight", SkFontStyle::Weight::kLight_Weight)

.value("kNormal_Weight", SkFontStyle::Weight::kNormal_Weight)

.value("kMedium_Weight", SkFontStyle::Weight::kMedium_Weight)

.value("kSemiBold_Weight", SkFontStyle::Weight::kSemiBold_Weight)

.value("kBold_Weight", SkFontStyle::Weight::kBold_Weight)

.value("kExtraBold_Weight", SkFontStyle::Weight::kExtraBold_Weight)

.value("kBlack_Weight", SkFontStyle::Weight::kBlack_Weight)

.value("kExtraBlack_Weight", SkFontStyle::Weight::kExtraBlack_Weight)

.export_values();

py::enum_<SkFontStyle::Width>(fontstyle, "Width", py::arithmetic())

.value("kUltraCondensed_Width", SkFontStyle::Width::kUltraCondensed_Width)

.value("kExtraCondensed_Width", SkFontStyle::Width::kExtraCondensed_Width)

.value("kCondensed_Width", SkFontStyle::Width::kCondensed_Width)

.value("kSemiCondensed_Width", SkFontStyle::Width::kSemiCondensed_Width)

.value("kNormal_Width", SkFontStyle::Width::kNormal_Width)

.value("kSemiExpanded_Width", SkFontStyle::Width::kSemiExpanded_Width)

.value("kExpanded_Width", SkFontStyle::Width::kExpanded_Width)

.value("kExtraExpanded_Width", SkFontStyle::Width::kExtraExpanded_Width)

.value("kUltraExpanded_Width", SkFontStyle::Width::kUltraExpanded_Width)

.export_values();

py::enum_<SkFontStyle::Slant>(fontstyle, "Slant")

.value("kUpright_Slant", SkFontStyle::Slant::kUpright_Slant)

.value("kItalic_Slant", SkFontStyle::Slant::kItalic_Slant)

.value("kOblique_Slant", SkFontStyle::Slant::kOblique_Slant)

.export_values();

fontstyle

.def(py::init<int, int, SkFontStyle::Slant>(),

py::arg("weight"), py::arg("width"), py::arg("slant"))

.def(py::init<>())

.def("__repr__",

[] (const SkFontStyle& self) {

return py::str("FontStyle({}, {}, {})").format(

self.weight(), self.width(), self.slant());

})

.def("weight", &SkFontStyle::weight)

.def("width", &SkFontStyle::width)

.def("slant", &SkFontStyle::slant)

.def_static("Normal", &SkFontStyle::Normal)

.def_static("Bold", &SkFontStyle::Bold)

.def_static("Italic", &SkFontStyle::Italic)

.def_static("BoldItalic", &SkFontStyle::BoldItalic)

;

// Typeface

py::class_<SkFontParameters> fontparameters(m, "FontParameters");

py::class_<SkFontParameters::Variation> variation(

fontparameters, "Variation",

R"docstring(

Parameters in a variation font axis.

)docstring");

py::class_<Axis>(variation, "Axis")

.def(py::init<>())

.def("__repr__",

[] (const Axis& self) {

return py::str("Axis(tag={:x}, min={}, def={}, max={})").format(

self.tag, self.min, self.def, self.max);

})

.def_readwrite("tag", &Axis::tag,

R"docstring(

Four character identifier of the font axis (weight, width, slant,

italic...).

)docstring")

.def_readwrite("min", &Axis::min,

R"docstring(

Minimum value supported by this axis.

)docstring")

.def_readwrite("def", &Axis::def,

R"docstring(

Default value set by this axis.

)docstring")

.def_readwrite("max", &Axis::max,

R"docstring(

Maximum value supported by this axis. The maximum can equal the minimum.

)docstring")

.def("isHidden", &Axis::isHidden,

R"docstring(

Return whether this axis is recommended to be remain hidden in user

interfaces.

)docstring")

.def("setHidden", &Axis::setHidden,

R"docstring(

Set this axis to be remain hidden in user interfaces.

)docstring",

py::arg("hidden"))

;

py::class_<SkFontArguments> fontarguments(m, "FontArguments", R"docstring(

Represents a set of actual arguments for a font.

)docstring");

py::class_<SkFontArguments::VariationPosition> variationposition(

fontarguments, "VariationPosition",

R"docstring(

Container of coordinates.

)docstring");

py::class_<Coordinate>(

variationposition, "Coordinate")

.def(py::init(

[] (SkFourByteTag axis, float value) {

return Coordinate({axis, value});

}),

py::arg("axis"), py::arg("value"))

.def("__repr__",

[] (const Coordinate& self) {

return py::str("Coordinate(axis={:x}, value={})").format(

self.axis, self.value);

})

.def_readwrite("axis", &Coordinate::axis)

.def_readwrite("value", &Coordinate::value)

;

py::bind_vector<std::vector<Coordinate>>(variationposition, "Coordinates");

variationposition

.def(py::init(

[] (const std::vector<Coordinate>& coordinates) {

SkFontArguments::VariationPosition vp;

SetVariationPositionCoordinates(vp, coordinates);

return vp;

}),

py::arg("coordinates"))

.def_property("coordinates",

[] (const SkFontArguments::VariationPosition& vp) {

return std::vector<Coordinate>(

vp.coordinates, vp.coordinates + vp.coordinateCount);

&SetVariationPositionCoordinates)

.def_readonly("coordinateCount",

&SkFontArguments::VariationPosition::coordinateCount)

;

fontarguments

.def(py::init<>())

.def("setCollectionIndex", &SkFontArguments::setCollectionIndex,

R"docstring(

Specify the index of the desired font.

Font formats like ttc, dfont, cff, cid, pfr, t42, t1, and fon may

actually be indexed collections of fonts.

)docstring",

py::arg("collectionIndex"))

.def("setVariationDesignPosition",

&SkFontArguments::setVariationDesignPosition,

R"docstring(

Specify a position in the variation design space.

Any axis not specified will use the default value. Any specified axis

not actually present in the font will be ignored.

:param position: not copied. The value must remain valid for life of

:py:class:`FontArguments`.

)docstring",

py::arg("position"))

.def("getCollectionIndex", &SkFontArguments::getCollectionIndex)

.def("getVariationDesignPosition",

&SkFontArguments::getVariationDesignPosition)

;

py::class_<SkTypeface, sk_sp<SkTypeface>, SkRefCnt> typeface(

m, "Typeface", R"docstring(

The :py:class:`Typeface` class specifies the typeface and intrinsic style of

a font.

This is used in the paint, along with optionally algorithmic settings like

textSize, textSkewX, textScaleX, kFakeBoldText_Mask, to specify how text

appears when drawn (and measured).

Typeface objects are immutable, and so they can be shared between threads.

Example::

typeface = skia.Typeface()

typeface = skia.Typeface('Arial')

typeface = skia.Typeface('Arial', skia.FontStyle.Bold())

)docstring");

py::enum_<SkTypeface::SerializeBehavior>(typeface, "SerializeBehavior",

R"docstring(

A typeface can serialize just a descriptor (names, etc.), or it can also

include the actual font data (which can be large).

This enum controls how serialize() decides what to serialize.

)docstring")

.value("kDoIncludeData", SkTypeface::SerializeBehavior::kDoIncludeData)

.value("kDontIncludeData", SkTypeface::SerializeBehavior::kDontIncludeData)

.value("kIncludeDataIfLocal",

SkTypeface::SerializeBehavior::kIncludeDataIfLocal)

.export_values();

typeface

.def(py::init(

[] (void) {

auto warnings = pybind11::module::import("warnings");

auto builtins = pybind11::module::import("builtins");

warnings.attr("warn")(

"\"Default typeface\" is deprecated upstream. Please specify name/file/style choices.",

builtins.attr("DeprecationWarning"));

return SkFontMgr_RefDefault()->legacyMakeTypeface("", SkFontStyle());

}),

R"docstring(

Returns the default normal typeface.

)docstring")

.def(py::init(&SkTypeface_MakeFromName),

R"docstring(

Creates a new reference to the typeface that most closely matches the

requested familyName and fontStyle.

This method allows extended font face specifiers as in the

:py:class:`FontStyle` type. Will never return null.

:param str familyName: May be NULL. The name of the font family.

:param skia.FontStyle fontStyle: The style of the typeface.

:return: reference to the closest-matching typeface.

)docstring",

py::arg("familyName"), py::arg("fontStyle") = nullptr)

.def("__repr__",

[] (const SkTypeface& self) {

SkString name;

self.getFamilyName(&name);

return py::str("Typeface('{}', {})").format(

name.c_str(), self.fontStyle());

})

.def("fontStyle", &SkTypeface::fontStyle,

R"docstring(

Returns the typeface's intrinsic style attributes.

)docstring")

.def("isBold", &SkTypeface::isBold,

R"docstring(

Returns true if style() has the kBold bit set.

)docstring")

.def("isItalic", &SkTypeface::isItalic,

R"docstring(

Returns true if style() has the kItalic bit set.

)docstring")

.def("isFixedPitch", &SkTypeface::isFixedPitch,

R"docstring(

Returns true if the typeface claims to be fixed-pitch.

)docstring")

.def("getVariationDesignParameters",

[] (const SkTypeface& typeface) {

auto count = typeface.getVariationDesignParameters({nullptr, 0});

if (count == -1)

throw std::runtime_error("Failed to get; Likely no parameter");

std::vector<Axis> params(count);

if (count == 0)

return params;

auto actualCount = typeface.getVariationDesignParameters(

{params.data(), params.size()});

if (actualCount == -1)

throw std::runtime_error("Failed to get");

return params;

R"docstring(

Returns the design variation parameters.

:return: List of axes.

:rtype: List[skia.FontParameters.Variation.Axis]

)docstring")

.def("getVariationDesignPosition",

[] (const SkTypeface& typeface) {

auto count = typeface.getVariationDesignPosition({nullptr, 0});

if (count == -1)

throw std::runtime_error("Failed to get; Likely no position");

std::vector<Coordinate> coords(count);

auto actualCount = typeface.getVariationDesignPosition(

{coords.data(), coords.size()});

if (actualCount == -1)

throw std::runtime_error("Failed to get");

return coords;

R"docstring(

Returns the design variation coordinates.

:param int coordinateCount: the maximum number of entries to get.

:return: list of coordinates

:rtype: List[skia.FontArguments.VariationPosition.Coordinate]

)docstring")

.def("uniqueID", &SkTypeface::uniqueID,

R"docstring(

Return a 32bit value for this typeface, unique for the underlying font

data.

Will never return 0.

)docstring")

.def("makeClone", &SkTypeface::makeClone,

R"docstring(

Return a new typeface based on this typeface but parameterized as

specified in the :py:class:`FontArguments`.

If the :py:class:`FontArguments` does not supply an argument for a

parameter in the font then the value from this typeface will be used as

the value for that argument. If the cloned typeface would be exaclty the

same as this typeface then this typeface may be ref'ed and returned. May

return nullptr on failure.

)docstring",

py::arg("fontArguments"))

// .def("serialize", &SkTypeface::serialize)

.def("serialize",

py::overload_cast<SkTypeface::SerializeBehavior>(

&SkTypeface::serialize, py::const_),

R"docstring(

Returns a unique signature to a stream, sufficient to reconstruct a

typeface referencing the same font when Deserialize is called.

)docstring",

py::arg_v("behavior", SkTypeface::SerializeBehavior::kIncludeDataIfLocal,

"skia.Typeface.SerializeBehavior.kIncludeDataIfLocal"))

.def("unicharsToGlyphs",

[] (const SkTypeface& typeface, const std::vector<SkUnichar>& chars) {

std::vector<SkGlyphID> glyphs(chars.size());

typeface.unicharsToGlyphs({chars.data(), chars.size()}, {glyphs.data(), glyphs.size()});

return glyphs;

R"docstring(

Given an array of UTF32 character codes, return their corresponding

glyph IDs.

:param List[int] chars: the array of UTF32 chars.

:return: the corresponding glyph IDs for each character.

)docstring",

py::arg("chars"))

.def("unicharToGlyph", &SkTypeface::unicharToGlyph,

R"docstring(

Return the glyphID that corresponds to the specified unicode code-point

(in UTF32 encoding).

If the unichar is not supported, returns 0.

This is a short-cut for calling :py:meth:`unicharsToGlyphs`.

)docstring",

py::arg("unichar"))

.def("countGlyphs", &SkTypeface::countGlyphs,

R"docstring(

Return the number of glyphs in the typeface.

)docstring")

.def("countTables", &SkTypeface::countTables,

R"docstring(

Return the number of tables in the font.

)docstring")

.def("getTableTags",

[] (const SkTypeface& typeface) {

std::vector<SkFontTableTag> tags(typeface.countTables());

size_t size = typeface.readTableTags({tags.data(), tags.size()});

if (size < tags.size())

throw std::runtime_error("Failed to get table tags.");

return tags;

R"docstring(

Returns the list of table tags in the font.

)docstring")

.def("getTableSize", &SkTypeface::getTableSize,

R"docstring(

Given a table tag, return the size of its contents, or 0 if not present.

)docstring",

py::arg("tag"))

.def("getTableData",

[] (const SkTypeface& typeface, SkFontTableTag tag) {

size_t size = typeface.getTableSize(tag);

std::vector<char> data(size);

auto written = typeface.getTableData(tag, 0, data.size(), &data[0]);

if (written == 0 && size > 0)

throw std::runtime_error("Failed to get table data.");

return py::bytes(&data[0], data.size());

R"docstring(

Returns the contents of a table.

Note that the contents of the table will be in their native endian order

(which for most truetype tables is big endian). If the table tag is not

found, or there is an error copying the data, then 0 is returned. If

this happens, it is possible that some or all of the memory pointed to

by data may have been written to, even though an error has occured.

:param int tag: The table tag whose contents are to be copied.

:return: table contents

)docstring",

py::arg("tag"))

.def("copyTableData", &SkTypeface::copyTableData,

R"docstring(

Return an immutable copy of the requested font table, or nullptr if that

table was not found.

This can sometimes be faster than calling :py:meth:`getTableData` twice:

once to find the length, and then again to copy the data.

:param tag: The table tag whose contents are to be copied

:return: an immutable copy of the table's data, or nullptr.

)docstring",

py::arg("tag"))

.def("getUnitsPerEm", &SkTypeface::getUnitsPerEm,

R"docstring(

Return the units-per-em value for this typeface, or zero if there is an

error.

)docstring")

.def("getKerningPairAdjustments",

[] (const SkTypeface& typeface,

const std::vector<SkGlyphID>& glyphs) -> py::object {

std::vector<int32_t> adjustments(glyphs.size() - 1);

auto result = typeface.getKerningPairAdjustments(

{glyphs.data(), glyphs.size()}, {(glyphs.size() > 1) ? adjustments.data() : nullptr, adjustments.size()});

if (!result) {

// Kerning is not supported for this typeface.

return py::none();

}

return py::cast(adjustments);

R"docstring(

Given a run of glyphs, return the associated horizontal adjustments.

Adjustments are in "design units", which are integers relative to the

typeface's units per em (see getUnitsPerEm).

Some typefaces are known to never support kerning. If the typeface does

not support kerning, then this method will return None (no kerning) for

all possible glyph runs.

)docstring",

py::arg("glyphs"))

.def("getFamilyNames",

[] (const SkTypeface& typeface) {

SkTypeface::LocalizedString name;

py::list results;

auto it = typeface.createFamilyNameIterator();

if (!it)

throw std::runtime_error("Null pointer exception");

while (it->next(&name)) {

auto fString = py::str(

name.fString.c_str(), name.fString.size());

auto fLanguage = py::str(

name.fLanguage.c_str(), name.fLanguage.size());

results.append(py::make_tuple(fString, fLanguage));

}

it->unref();

return results;

R"docstring(

Returns a list of (family name, language) pairs specified by the font.

)docstring")

.def("getFamilyName",

[] (const SkTypeface& typeface) {

SkString name;

typeface.getFamilyName(&name);

return py::str(name.c_str(), name.size());

R"docstring(

Return the family name for this typeface.

It will always be returned encoded as UTF8, but the language of the name

is whatever the host platform chooses.

)docstring")

.def("getPostScriptName",

[] (const SkTypeface& typeface) {

SkString name;

typeface.getPostScriptName(&name);

return py::str(name.c_str(), name.size());

R"docstring(

Return the PostScript name for this typeface.

Value may change based on variation parameters.

Returns false if no PostScript name is available.

)docstring")

// .def("openStream", &SkTypeface::openStream,

// "Return a stream for the contents of the font data, or NULL on "

// "failure.")

// .def("makeFontData", &SkTypeface::makeFontData,

// R"docstring(

// Return the font data, or nullptr on failure.

// )docstring")

// .def("createScalerContext", &SkTypeface::createScalerContext,

// "Return a scalercontext for the given descriptor.")

.def("getBounds", &SkTypeface::getBounds,

R"docstring(

Return a rectangle (scaled to 1-pt) that represents the union of the

bounds of all of the glyphs, but each one positioned at (0,).

This may be conservatively large, and will not take into account any

hinting or other size-specific adjustments.

)docstring")

// .def("filterRec", &SkTypeface::filterRec)

// .def("getFontDescriptor", &SkTypeface::getFontDescriptor)

.def_static("UniqueID", &SkTypeface::UniqueID,

R"docstring(

Return the uniqueID for the specified typeface.

If the face is null, resolve it to the default font and return its

uniqueID. Will never return 0.

)docstring",

py::arg("typeface"))

.def_static("Equal", &SkTypeface::Equal,

R"docstring(

Returns true if the two typefaces reference the same underlying font,

handling either being null (treating null as the default font)

)docstring",

py::arg("self"), py::arg("other"))

.def("__eq__", &SkTypeface::Equal, py::is_operator())

.def_static("MakeDefault",

[] (void) {

auto warnings = pybind11::module::import("warnings");

auto builtins = pybind11::module::import("builtins");

warnings.attr("warn")(

"\"Default typeface\" is deprecated upstream. Please specify name/file/style choices.",

builtins.attr("DeprecationWarning"));

return SkFontMgr_RefDefault()->legacyMakeTypeface("", SkFontStyle());

R"docstring(

Returns the default normal typeface, which is never nullptr.

)docstring")

.def_static("MakeEmpty", &SkTypeface::MakeEmpty,

R"docstring(

Returns a non-null typeface which contains no glyphs.

)docstring")

.def_static("MakeFromName", &SkTypeface_MakeFromName,

R"docstring(

Creates a new reference to the typeface that most closely matches the

requested familyName and fontStyle.

This method allows extended font face specifiers as in the

:py:class:`FontStyle` type. Will never return null.

:param str familyName: May be NULL. The name of the font family.

:param skia.FontStyle fontStyle: The style of the typeface.

:return: reference to the closest-matching typeface.

)docstring",

py::arg("familyName"), py::arg("fontStyle") = nullptr)

.def_static("MakeFromFile",

[] (const std::string& path, int index) {

return SkFontMgr_RefDefault()->makeFromFile(&path[0], index);

R"docstring(

Return a new typeface given a file.

If the file does not exist, or is not a valid font file, returns

nullptr.

)docstring",

py::arg("path"), py::arg("index") = 0)

// .def_static("MakeFromStream", &SkTypeface::MakeFromStream,

// "Return a new typeface given a stream.")

.def_static("MakeFromData",

[] (sk_sp<SkData> data, int index) {

return SkFontMgr_RefDefault()->makeFromData(data, index);

R"docstring(

Return a new typeface given a :py:class:`Data`.

If the data is null, or is not a valid font file, returns nullptr.

Use :py:meth:`MakeDeserialize` for the result of :py:meth:`serialize`.

)docstring",

py::arg("data"), py::arg("index") = 0)

// .def_static("MakeFromFontData", &SkTypeface::MakeFromFontData,

// "Return a new typeface given font data and configuration.")

.def_static("MakeDeserialize",

[] (const sk_sp<SkData>& data, sk_sp<SkFontMgr> lastResortMgr) {

SkMemoryStream stream(data);

return SkTypeface::MakeDeserialize(&stream, lastResortMgr);

R"docstring(

Given the data previously written by :py:meth:`serialize`, return a new

instance of a typeface referring to the same font.

If that font is not available, return nullptr.

)docstring",

py::arg("dats"), py::arg("lastResortMgr"))

;

// FontMgr

py::class_<SkFontStyleSet, sk_sp<SkFontStyleSet>, SkRefCnt>(m, "FontStyleSet")

.def("__getitem__", &SkFontStyleSet_getStyle, py::arg("index"))

.def("__len__", &SkFontStyleSet::count)

.def("__repr__",

[] (SkFontStyleSet& self) {

return py::str("FontStyleSet({})").format(self.count());

})

.def("count", &SkFontStyleSet::count)

.def("getStyle", &SkFontStyleSet_getStyle, py::arg("index"))

.def("createTypeface", &SkFontStyleSet::createTypeface, py::arg("index"))

.def("matchStyle", &SkFontStyleSet::matchStyle, py::arg("pattern"))

.def_static("CreateEmpty", &SkFontStyleSet::CreateEmpty)

;

py::class_<SkFontMgr, sk_sp<SkFontMgr>, SkRefCnt>(m, "FontMgr",

R"docstring(

Font manager that knows system fonts.

Example::

fontmgr = skia.FontMgr()

print(list(fontmgr))

familyName = fontmgr[0]

typeface = fontmgr.matchFamilyStyle(familyName, skia.FontStyle.Normal())

assert typeface is not None

)docstring")

.def(py::init([] () { return SkFontMgr_RefDefault(); }))

.def_static("New_Custom_Directory", &SkFontMgr_New_Custom_Directory,

R"docstring(

Create a custom font manager which scans a given directory for font files.

This font manager uses FreeType for rendering.

)docstring",

py::arg("dir"))

.def_static("New_Custom_Empty", &SkFontMgr_New_Custom_Empty)

.def_static("New_Custom_Empty", py::overload_cast<char*>(&OneFontMgr_New_Custom_Empty),

py::arg("filename"))

.def_static("New_Custom_Empty", py::overload_cast<sk_sp<SkData>>(&OneFontMgr_New_Custom_Empty),

py::arg("data"))

.def("__getitem__", &SkFontMgr_getFamilyName, py::arg("index"))

.def("__len__", &SkFontMgr::countFamilies)

.def("countFamilies", &SkFontMgr::countFamilies)

.def("getFamilyName", &SkFontMgr_getFamilyName, py::arg("index"))

.def("createStyleSet",

[] (const SkFontMgr& fontmgr, int index) {

return sk_sp<SkFontStyleSet>(fontmgr.createStyleSet(index));

py::arg("index"))

.def("matchFamily",

[] (const SkFontMgr& fontmgr, const std::string* familyName) {

return sk_sp<SkFontStyleSet>(

fontmgr.matchFamily(

(familyName) ? familyName->c_str() : nullptr));

R"docstring(

Never returns NULL; will return an empty set if the name is not found.

Passing nullptr as the parameter will return the default system family.

Note that most systems don't have a default system family, so passing

nullptr will often result in the empty set.

It is possible that this will return a style set not accessible from

createStyleSet(int) due to hidden or auto-activated fonts.

)docstring",

py::arg("familyName"))

.def("matchFamilyStyle",

[] (const SkFontMgr& fontmgr, const py::object& familyName,

const SkFontStyle& style) {

return sk_sp<SkTypeface>(

fontmgr.matchFamilyStyle(

(familyName.is_none()) ? nullptr :

familyName.cast<std::string>().c_str(), style));

R"docstring(

Find the closest matching typeface to the specified familyName and style

and return a ref to it.

Will return nullptr if no 'good' match is found.

Passing nullptr as the parameter for familyName will return the

default system font.

It is possible that this will return a style set not accessible from

createStyleSet(int) or matchFamily(const char[]) due to hidden or

auto-activated fonts.

)docstring",

py::arg("familyName"), py::arg("style"))

.def("matchFamilyStyleCharacter",

[] (const SkFontMgr& fontmgr, const std::string& familyName,

const SkFontStyle& style, const std::vector<std::string>& bcp47,

SkUnichar character) {

std::vector<const char*> bcp47_(bcp47.size());

std::transform(bcp47.begin(), bcp47.end(), bcp47_.begin(),

[] (const std::string& c) { return c.c_str(); });

return sk_sp<SkTypeface>(

fontmgr.matchFamilyStyleCharacter(

familyName.c_str(), style, &bcp47_[0], bcp47_.size(),

character));

R"docstring(

Use the system fallback to find a typeface for the given character.

Note that bcp47 is a combination of ISO 639, 15924, and 3166-1 codes, so

it is fine to just pass a ISO 639 here.

Will return NULL if no family can be found for the character in the

system fallback.

Passing nullptr as the parameter for familyName will return the

default system font.

bcp47[0] is the least significant fallback, bcp47[bcp47Count-1] is the

most significant. If no specified bcp47 codes match, any font with the

requested character will be matched.

)docstring",

py::arg("familyName"), py::arg("style"), py::arg("bcp47"),

py::arg("character"))

.def("makeFromData", &SkFontMgr::makeFromData,

R"docstring(

Create a typeface for the specified data and TTC index (pass 0 for none)

or NULL if the data is not recognized.

)docstring",

py::arg("data"), py::arg("ttcIndex") = 0)

// .def("makeFromStream", &SkFontMgr::makeFromStream)

// .def("makeFromFontData", &SkFontMgr::makeFromFontData)

.def("makeFromFile",

[] (const SkFontMgr& fontmgr, const std::string& path, int ttcIndex) {

return fontmgr.makeFromFile(path.c_str(), ttcIndex);

R"docstring(

Create a typeface for the specified fileName and TTC index (pass 0 for

none) or NULL if the file is not found, or its contents are not

recognized.

)docstring",

py::arg("path"), py::arg("ttcIndex") = 0)

.def("legacyMakeTypeface",

[] (const SkFontMgr& fontmgr, const std::string& familyName,

const SkFontStyle& style) {

return fontmgr.legacyMakeTypeface(familyName.c_str(), style);

py::arg("familyName"), py::arg("style"))

.def_static("RefDefault", &SkFontMgr_RefDefault,

R"docstring(

Return the default fontmgr.

)docstring")

;

// This has the side-effect of letting "skia.FontMgr.OneFontMgr()" work.

m.attr("FontMgr").attr("OneFontMgr") = m.attr("FontMgr").attr("New_Custom_Empty");

// Font

py::enum_<SkFontHinting>(m, "FontHinting")

.value("kNone", SkFontHinting::kNone)

.value("kSlight", SkFontHinting::kSlight)

.value("kNormal", SkFontHinting::kNormal)

.value("kFull", SkFontHinting::kFull)

.export_values();

py::enum_<SkTextEncoding>(m, "TextEncoding")

.value("kUTF8", SkTextEncoding::kUTF8)

.value("kUTF16", SkTextEncoding::kUTF16)

.value("kUTF32", SkTextEncoding::kUTF32)

.value("kGlyphID", SkTextEncoding::kGlyphID)

.export_values();

py::class_<SkFont> font(m, "Font", R"docstring(

:py:class:`Font` controls options applied when drawing and measuring text.

)docstring");

py::enum_<SkFont::Edging>(font, "Edging", R"docstring(

Whether edge pixels draw opaque or with partial transparency.

)docstring")

.value("kAlias", SkFont::Edging::kAlias)

.value("kAntiAlias", SkFont::Edging::kAntiAlias)

.value("kSubpixelAntiAlias", SkFont::Edging::kSubpixelAntiAlias)

.export_values();

font

.def("__repr__",

[] (const SkFont& self) {

return py::str("Font({}, {}, {}, {})").format(

self.getTypefaceOrDefault(), self.getSize(), self.getScaleX(),

self.getSkewX());

})

.def(py::init(

[] (void) {

auto warnings = pybind11::module::import("warnings");

auto builtins = pybind11::module::import("builtins");

warnings.attr("warn")(

"\"Default font\" is deprecated upstream. Please specify name/file/style choices.",

builtins.attr("DeprecationWarning"));

return SkFont(SkFontMgr_RefDefault()->legacyMakeTypeface("", SkFontStyle()));

}),

R"docstring(

Constructs :py:class:`Font` with default values.

)docstring")

.def(py::init(

[] (py::object typeface, SkScalar size) {

if (typeface.is_none()) {

auto warnings = pybind11::module::import("warnings");

auto builtins = pybind11::module::import("builtins");

warnings.attr("warn")(

"\"Default font\" is deprecated upstream. Please specify name/file/style choices.",

builtins.attr("DeprecationWarning"));

return SkFont(SkFontMgr_RefDefault()->legacyMakeTypeface("", SkFontStyle()), size);

} else {

return SkFont(typeface.cast<sk_sp<SkTypeface>>(), size);

}

}),

R"docstring(

Constructs :py:class:`Font` with default values with

:py:class:`Typeface` and size in points.

View remainder of file in raw view

skia-python/src/skia/Font.cpp at main · skia-python/skia-python · GitHub

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