gecko-dev/gfx/thebes/gfxTypes.h

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3.6 KiB
C

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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
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
* 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 gfxBreakPriority {
eNoBreak = 0,
eWordWrapBreak,
eNormalBreak
};
/**
* The format for an image surface. For all formats with alpha data, 0
* means transparent, 1 or 255 means fully opaque.
*/
enum gfxImageFormat {
gfxImageFormatARGB32, ///< ARGB data in native endianness, using premultiplied alpha
gfxImageFormatRGB24, ///< xRGB data in native endianness
gfxImageFormatA8, ///< Only an alpha channel
gfxImageFormatA1, ///< Packed transparency information (one byte refers to 8 pixels)
gfxImageFormatRGB16_565, ///< RGB_565 data in native endianness
gfxImageFormatUnknown
};
enum gfxSurfaceType {
gfxSurfaceTypeImage,
gfxSurfaceTypePDF,
gfxSurfaceTypePS,
gfxSurfaceTypeXlib,
gfxSurfaceTypeXcb,
gfxSurfaceTypeGlitz, // unused, but needed for cairo parity
gfxSurfaceTypeQuartz,
gfxSurfaceTypeWin32,
gfxSurfaceTypeBeOS,
gfxSurfaceTypeDirectFB, // unused, but needed for cairo parity
gfxSurfaceTypeSVG,
gfxSurfaceTypeOS2,
gfxSurfaceTypeWin32Printing,
gfxSurfaceTypeQuartzImage,
gfxSurfaceTypeScript,
gfxSurfaceTypeQPainter,
gfxSurfaceTypeRecording,
gfxSurfaceTypeVG,
gfxSurfaceTypeGL,
gfxSurfaceTypeDRM,
gfxSurfaceTypeTee,
gfxSurfaceTypeXML,
gfxSurfaceTypeSkia,
gfxSurfaceTypeSubsurface,
gfxSurfaceTypeD2D,
gfxSurfaceTypeMax
};
enum gfxContentType {
GFX_CONTENT_COLOR = 0x1000,
GFX_CONTENT_ALPHA = 0x2000,
GFX_CONTENT_COLOR_ALPHA = 0x3000,
GFX_CONTENT_SENTINEL = 0xffff
};
/**
* The memory used by this surface (as reported by KnownMemoryUsed()) can
* either live in this process's heap, in this process but outside the
* heap, or in another process altogether.
*/
enum gfxMemoryLocation {
GFX_MEMORY_IN_PROCESS_HEAP,
GFX_MEMORY_IN_PROCESS_NONHEAP,
GFX_MEMORY_OUT_OF_PROCESS
};
#endif /* GFX_TYPES_H */