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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.
- */
- #ifndef SkFontArguments_DEFINED
- #define SkFontArguments_DEFINED
- #include "include/core/SkScalar.h"
- #include "include/core/SkTypes.h"
- /** Represents a set of actual arguments for a font. */
- struct SkFontArguments {
- struct VariationPosition {
- struct Coordinate {
- SkFourByteTag axis;
- float value;
- };
- const Coordinate* coordinates;
- int coordinateCount;
- };
- // deprecated, use VariationPosition::Coordinate instead
- struct Axis {
- SkFourByteTag fTag;
- float fStyleValue;
- };
- SkFontArguments() : fCollectionIndex(0), fVariationDesignPosition{nullptr, 0} {}
- /** 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.
- */
- SkFontArguments& setCollectionIndex(int collectionIndex) {
- fCollectionIndex = collectionIndex;
- return *this;
- }
- // deprecated, use setVariationDesignPosition instead.
- SkFontArguments& setAxes(const Axis* axes, int axisCount) {
- fVariationDesignPosition.coordinates =
- reinterpret_cast<const VariationPosition::Coordinate*>(axes);
- fVariationDesignPosition.coordinateCount = axisCount;
- return *this;
- }
- /** 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 SkFontArguments.
- */
- SkFontArguments& setVariationDesignPosition(VariationPosition position) {
- fVariationDesignPosition.coordinates = position.coordinates;
- fVariationDesignPosition.coordinateCount = position.coordinateCount;
- return *this;
- }
- int getCollectionIndex() const {
- return fCollectionIndex;
- }
- // deprecated, use getVariationDesignPosition instead.
- const Axis* getAxes(int* axisCount) const {
- *axisCount = fVariationDesignPosition.coordinateCount;
- return reinterpret_cast<const Axis*>(fVariationDesignPosition.coordinates);
- }
- VariationPosition getVariationDesignPosition() const {
- return fVariationDesignPosition;
- }
- private:
- int fCollectionIndex;
- VariationPosition fVariationDesignPosition;
- };
- #endif
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