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Diffstat (limited to 'gfx/thebes/gfxTypes.h')
-rw-r--r-- | gfx/thebes/gfxTypes.h | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/gfx/thebes/gfxTypes.h b/gfx/thebes/gfxTypes.h new file mode 100644 index 0000000000..0e08c21547 --- /dev/null +++ b/gfx/thebes/gfxTypes.h @@ -0,0 +1,163 @@ +/* -*- Mode: C++; tab-width: 20; 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 GFX_TYPES_H +#define GFX_TYPES_H + +#include <stdint.h> +#include "mozilla/TypedEnumBits.h" + +namespace mozilla { +enum class StyleGenericFontFamily : uint32_t; +} + +typedef struct _cairo_surface cairo_surface_t; +typedef struct _cairo_user_data_key cairo_user_data_key_t; + +typedef void (*thebes_destroy_func_t)(void* data); + +/** + * Currently needs to be 'double' for Cairo compatibility. Could + * become 'float', perhaps, in some configurations. + */ +typedef double gfxFloat; + +/** + * Priority of a line break opportunity. + * + * eNoBreak The line has no break opportunities + * eWordWrapBreak The line has a break opportunity only within a word. With + * overflow-wrap|word-wrap: break-word we will break at this + * point only if there are no other break opportunities in the + * line. + * eNormalBreak The line has a break opportunity determined by the standard + * line-breaking algorithm. + * + * Future expansion: split eNormalBreak into multiple priorities, e.g. + * punctuation break and whitespace break (bug 389710). + * As and when we implement it, text-wrap: unrestricted will + * mean that priorities are ignored and all line-break + * opportunities are equal. + * + * @see gfxTextRun::BreakAndMeasureText + * @see nsLineLayout::NotifyOptionalBreakPosition + */ +enum class gfxBreakPriority { eNoBreak = 0, eWordWrapBreak, eNormalBreak }; + +enum class gfxSurfaceType { + Image, + PDF, + PS, + Xlib, + Xcb, + Glitz, // unused, but needed for cairo parity + Quartz, + Win32, + BeOS, + DirectFB, // unused, but needed for cairo parity + SVG, + OS2, + Win32Printing, + QuartzImage, + Script, + QPainter, + Recording, + VG, + GL, + DRM, + Tee, + XML, + Skia, + Subsurface, + Max +}; + +enum class gfxContentType { + COLOR = 0x1000, + ALPHA = 0x2000, + COLOR_ALPHA = 0x3000, + SENTINEL = 0xffff +}; + +enum class gfxAlphaType { + Opaque, + Premult, + NonPremult, +}; + +/** + * Type used to record how a particular font is selected during the font- + * matching process, so that this can be exposed to the Inspector. + */ +struct FontMatchType { + enum class Kind : uint8_t { + kUnspecified = 0, + kFontGroup = 1, + kPrefsFallback = 1 << 1, + kSystemFallback = 1 << 2, + }; + + inline FontMatchType& operator|=(const FontMatchType& aOther); + + bool operator==(const FontMatchType& aOther) const { + return kind == aOther.kind && generic == aOther.generic; + } + + bool operator!=(const FontMatchType& aOther) const { + return !(*this == aOther); + } + + MOZ_IMPLICIT FontMatchType() = default; + MOZ_IMPLICIT FontMatchType(Kind aKind) : kind(aKind) {} + FontMatchType(Kind aKind, mozilla::StyleGenericFontFamily aGeneric) + : kind(aKind), generic(aGeneric) {} + + Kind kind = static_cast<Kind>(0); + // Using 0 to avoid pulling ServoStyleConsts.h everywhere. + mozilla::StyleGenericFontFamily generic = mozilla::StyleGenericFontFamily(0); +}; + +MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(FontMatchType::Kind) + +FontMatchType& FontMatchType::operator|=(const FontMatchType& aOther) { + kind |= aOther.kind; + // We only keep track of one generic. + if (generic != aOther.generic) { + generic = mozilla::StyleGenericFontFamily(0); + } + return *this; +} + +// Installation status (base system / langpack / user-installed) may determine +// whether the font is visible to CSS font-family or src:local() lookups. +// (Exactly what these mean and how accurate they are may be vary across +// platforms -- e.g. on Linux there is no clear "base" set of fonts.) +enum class FontVisibility : uint8_t { + Unknown = 0, // No categorization of families available on this system + Base = 1, // Standard part of the base OS installation + LangPack = 2, // From an optional OS component such as language support + User = 3, // User-installed font (or installed by another app, etc) + Hidden = 4, // Internal system font, should never exposed to users + Webfont = 5, // Webfont defined by @font-face + Count = 6, // Count of values, for IPC serialization +}; + +struct HwStretchingSupport { + uint32_t mBoth; + uint32_t mWindowOnly; + uint32_t mFullScreenOnly; + uint32_t mNone; + uint32_t mError; + + HwStretchingSupport() + : mBoth(0), mWindowOnly(0), mFullScreenOnly(0), mNone(0), mError(0) {} + + bool IsFullySupported() const { + return mBoth > 0 && mWindowOnly == 0 && mFullScreenOnly == 0 && + mNone == 0 && mError == 0; + } +}; + +#endif /* GFX_TYPES_H */ |