gfx/thebes/gfxFontVariations.h

   1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
   5  * You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef GFX_FONT_VARIATIONS_H
   8 #define GFX_FONT_VARIATIONS_H
   9
  10 #include "mozilla/gfx/FontVariation.h"
  11 #include "nsString.h"
  12 #include "nsTArray.h"
  13
  14 typedef mozilla::gfx::FontVariation gfxFontVariation;
  15
  16 // Structure that describes a single axis of variation in an
  17 // OpenType Variation or Multiple-Master font.
  18 struct gfxFontVariationAxis {
  19   uint32_t mTag;
  20   nsCString mName;  // may be empty
  21   float mMinValue;
  22   float mMaxValue;
  23   float mDefaultValue;
  24 };
  25
  26 // A single <axis, value> pair that may be applied to a variation font.
  27 struct gfxFontVariationValue {
  28   uint32_t mAxis;
  29   float mValue;
  30 };
  31
  32 // Structure that describes a named instance of a variation font:
  33 // a name like "Light Condensed" or "Black Ultra Extended" etc.,
  34 // and a list of the corresponding <variation-axis, value> pairs
  35 // to be used.
  36 struct gfxFontVariationInstance {
  37   nsCString mName;
  38   CopyableTArray<gfxFontVariationValue> mValues;
  39 };
  40
  41 #endif