зеркало из https://github.com/mozilla/gecko-dev.git
107 строки
2.8 KiB
C
107 строки
2.8 KiB
C
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef GFX_TYPES_H
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#define GFX_TYPES_H
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#include <stdint.h>
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typedef struct _cairo_surface cairo_surface_t;
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typedef struct _cairo_user_data_key cairo_user_data_key_t;
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typedef void (*thebes_destroy_func_t) (void *data);
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/**
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* Currently needs to be 'double' for Cairo compatibility. Could
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* become 'float', perhaps, in some configurations.
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*/
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typedef double gfxFloat;
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/**
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* Priority of a line break opportunity.
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*
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* eNoBreak The line has no break opportunities
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* eWordWrapBreak The line has a break opportunity only within a word. With
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* word-wrap: break-word we will break at this point only if
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* there are no other break opportunities in the line.
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* eNormalBreak The line has a break opportunity determined by the standard
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* line-breaking algorithm.
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*
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* Future expansion: split eNormalBreak into multiple priorities, e.g.
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* punctuation break and whitespace break (bug 389710).
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* As and when we implement it, text-wrap: unrestricted will
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* mean that priorities are ignored and all line-break
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* opportunities are equal.
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*
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* @see gfxTextRun::BreakAndMeasureText
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* @see nsLineLayout::NotifyOptionalBreakPosition
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*/
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enum class gfxBreakPriority {
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eNoBreak = 0,
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eWordWrapBreak,
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eNormalBreak
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};
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/**
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* The format for an image surface. For all formats with alpha data, 0
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* means transparent, 1 or 255 means fully opaque.
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*/
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enum class gfxImageFormat {
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ARGB32, ///< ARGB data in native endianness, using premultiplied alpha
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RGB24, ///< xRGB data in native endianness
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A8, ///< Only an alpha channel
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RGB16_565, ///< RGB_565 data in native endianness
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Unknown
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};
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// XXX: temporary
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// This works because the gfxImageFormat enum is defined so as to match the
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// _cairo_format enum.
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#define gfxCairoFormatToImageFormat(aFormat) \
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((gfxImageFormat)aFormat)
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// XXX: temporary
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// This works because the gfxImageFormat enum is defined so as to match the
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// _cairo_format enum.
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#define gfxImageFormatToCairoFormat(aFormat) \
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((cairo_format_t)aFormat)
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enum class gfxSurfaceType {
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Image,
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PDF,
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PS,
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Xlib,
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Xcb,
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Glitz, // unused, but needed for cairo parity
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Quartz,
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Win32,
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BeOS,
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DirectFB, // unused, but needed for cairo parity
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SVG,
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OS2,
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Win32Printing,
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QuartzImage,
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Script,
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QPainter,
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Recording,
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VG,
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GL,
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DRM,
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Tee,
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XML,
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Skia,
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Subsurface,
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Max
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};
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enum class gfxContentType {
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COLOR = 0x1000,
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ALPHA = 0x2000,
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COLOR_ALPHA = 0x3000,
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SENTINEL = 0xffff
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};
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#endif /* GFX_TYPES_H */
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