Add m-esr52 at 52.6.0

1 files changed, 147 insertions, 0 deletions

diff --git a/gfx/src/nsFont.h b/gfx/src/nsFont.h
new file mode 100644
index 0000000000..d21ce2593a
--- /dev/null
+++ b/gfx/src/nsFont.h
@@ -0,0 +1,147 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsFont_h___
+#define nsFont_h___
+
+#include <stdint.h>                     // for uint8_t, uint16_t
+#include <sys/types.h>                  // for int16_t
+#include "gfxFontFamilyList.h"
+#include "gfxFontFeatures.h"
+#include "mozilla/RefPtr.h"             // for RefPtr
+#include "nsCoord.h"                    // for nscoord
+#include "nsStringFwd.h"                // for nsSubstring
+#include "nsString.h"               // for nsString
+#include "nsTArray.h"                   // for nsTArray
+
+struct gfxFontStyle;
+
+// XXX we need a method to enumerate all of the possible fonts on the
+// system across family, weight, style, size, etc. But not here!
+
+// Enumerator callback function. Return false to stop
+typedef bool (*nsFontFamilyEnumFunc)(const nsString& aFamily, bool aGeneric, void *aData);
+
+// IDs for generic fonts
+// NOTE: 0, 1 are reserved for the special IDs of the default variable
+// and fixed fonts in the presentation context, see nsPresContext.h
+const uint8_t kGenericFont_NONE         = 0x00;
+// Special
+const uint8_t kGenericFont_moz_variable = 0x00; // for the default variable width font
+const uint8_t kGenericFont_moz_fixed    = 0x01; // our special "use the user's fixed font"
+// CSS
+const uint8_t kGenericFont_serif        = 0x02;
+const uint8_t kGenericFont_sans_serif   = 0x04;
+const uint8_t kGenericFont_monospace    = 0x08;
+const uint8_t kGenericFont_cursive      = 0x10;
+const uint8_t kGenericFont_fantasy      = 0x20;
+
+// Font structure.
+struct nsFont {
+
+  // list of font families, either named or generic
+  mozilla::FontFamilyList fontlist;
+
+  // The style of font (normal, italic, oblique; see gfxFontConstants.h)
+  uint8_t style;
+
+  // Force this font to not be considered a 'generic' font, even if
+  // the name is the same as a CSS generic font family.
+  bool systemFont;
+
+  // Variant subproperties
+  uint8_t variantCaps;
+  uint8_t variantNumeric;
+  uint8_t variantPosition;
+  uint8_t variantWidth;
+
+  uint16_t variantLigatures;
+  uint16_t variantEastAsian;
+
+  // Some font-variant-alternates property values require
+  // font-specific settings defined via @font-feature-values rules.
+  // These are resolved *after* font matching occurs.
+
+  // -- bitmask for both enumerated and functional propvals
+  uint16_t variantAlternates;
+
+  // Smoothing - controls subpixel-antialiasing (currently OSX only)
+  uint8_t smoothing;
+
+  // The weight of the font; see gfxFontConstants.h.
+  uint16_t weight;
+
+  // The stretch of the font (the sum of various NS_FONT_STRETCH_*
+  // constants; see gfxFontConstants.h).
+  int16_t stretch;
+
+  // Kerning
+  uint8_t kerning;
+
+  // Synthesis setting, controls use of fake bolding/italics
+  uint8_t synthesis;
+
+  // The logical size of the font, in nscoord units
+  nscoord size;
+
+  // The aspect-value (ie., the ratio actualsize:actualxheight) that any
+  // actual physical font created from this font structure must have when
+  // rendering or measuring a string. A value of -1.0 means no adjustment
+  // needs to be done; otherwise the value must be nonnegative.
+  float sizeAdjust;
+
+  // -- list of value tags for font-specific alternate features
+  nsTArray<gfxAlternateValue> alternateValues;
+
+  // -- object used to look these up once the font is matched
+  RefPtr<gfxFontFeatureValueSet> featureValueLookup;
+
+  // Font features from CSS font-feature-settings
+  nsTArray<gfxFontFeature> fontFeatureSettings;
+
+  // Language system tag, to override document language;
+  // this is an OpenType "language system" tag represented as a 32-bit integer
+  // (see http://www.microsoft.com/typography/otspec/languagetags.htm).
+  nsString languageOverride;
+
+  // initialize the font with a fontlist
+  nsFont(const mozilla::FontFamilyList& aFontlist, nscoord aSize);
+
+  // initialize the font with a single generic
+  nsFont(mozilla::FontFamilyType aGenericType, nscoord aSize);
+
+  // Make a copy of the given font
+  nsFont(const nsFont& aFont);
+
+  // leave members uninitialized
+  nsFont();
+
+  ~nsFont();
+
+  bool operator==(const nsFont& aOther) const {
+    return Equals(aOther);
+  }
+
+  bool operator!=(const nsFont& aOther) const {
+    return !Equals(aOther);
+  }
+
+  bool Equals(const nsFont& aOther) const;
+
+  nsFont& operator=(const nsFont& aOther);
+
+  void CopyAlternates(const nsFont& aOther);
+
+  // Add featureSettings into style
+  void AddFontFeaturesToStyle(gfxFontStyle *aStyle) const;
+
+protected:
+  void Init(); // helper method for initialization
+};
+
+#define NS_FONT_VARIANT_NORMAL            0
+#define NS_FONT_VARIANT_SMALL_CAPS        1
+
+#endif /* nsFont_h___ */