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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkFontParameters_DEFINED
#define SkFontParameters_DEFINED
#include "include/core/SkScalar.h"
#include "include/core/SkTypes.h"
struct SkFontParameters {
struct Variation {
// Parameters in a variation font axis.
struct Axis {
constexpr Axis() : tag(0), min(0), def(0), max(0), flags(0) {}
constexpr Axis(SkFourByteTag tag, float min, float def, float max, bool hidden) :
tag(tag), min(min), def(def), max(max), flags(hidden ? HIDDEN : 0) {}
// Four character identifier of the font axis (weight, width, slant, italic...).
SkFourByteTag tag;
// Minimum value supported by this axis.
float min;
// Default value set by this axis.
float def;
// Maximum value supported by this axis. The maximum can equal the minimum.
float max;
// Return whether this axis is recommended to be remain hidden in user interfaces.
bool isHidden() const { return flags & HIDDEN; }
// Set this axis to be remain hidden in user interfaces.
void setHidden(bool hidden) { flags = hidden ? (flags | HIDDEN) : (flags & ~HIDDEN); }
private:
static constexpr uint16_t HIDDEN = 0x0001;
// Attributes for a font axis.
uint16_t flags;
};
};
};
#endif
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