зеркало из https://github.com/mozilla/gecko-dev.git
80 строки
2.2 KiB
C++
80 строки
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
|
|
/* 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/. */
|
|
|
|
/*
|
|
* Forward declarations to avoid including all of nsStyleStruct.h.
|
|
*/
|
|
|
|
#ifndef nsStyleStructFwd_h_
|
|
#define nsStyleStructFwd_h_
|
|
|
|
namespace mozilla {
|
|
|
|
enum class StyleStructID : uint32_t {
|
|
/*
|
|
* Define the constants eStyleStruct_Font, etc.
|
|
*
|
|
* The C++ standard, section 7.2, guarantees that enums begin with 0 and
|
|
* increase by 1.
|
|
*
|
|
* Note that we rely on the inherited structs being before the rest in
|
|
* ComputedStyle.
|
|
*/
|
|
#define STYLE_STRUCT_INHERITED(name) name,
|
|
#define STYLE_STRUCT_RESET(name)
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT_INHERITED
|
|
#undef STYLE_STRUCT_RESET
|
|
|
|
#define STYLE_STRUCT_RESET(name) name,
|
|
#define STYLE_STRUCT_INHERITED(name)
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT_INHERITED
|
|
#undef STYLE_STRUCT_RESET
|
|
};
|
|
|
|
struct StyleStructConstants
|
|
{
|
|
static const uint32_t kStyleStructCount =
|
|
#define STYLE_STRUCT_RESET(name) 1 +
|
|
#define STYLE_STRUCT_INHERITED(name) 1 +
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT_INHERITED
|
|
#undef STYLE_STRUCT_RESET
|
|
0;
|
|
|
|
static const uint32_t kInheritedStyleStructCount =
|
|
#define STYLE_STRUCT_RESET(name)
|
|
#define STYLE_STRUCT_INHERITED(name) 1 +
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT_INHERITED
|
|
#undef STYLE_STRUCT_RESET
|
|
0;
|
|
|
|
static const uint32_t kResetStyleStructCount =
|
|
#define STYLE_STRUCT_RESET(name) 1 +
|
|
#define STYLE_STRUCT_INHERITED(name)
|
|
#include "nsStyleStructList.h"
|
|
#undef STYLE_STRUCT_INHERITED
|
|
#undef STYLE_STRUCT_RESET
|
|
0;
|
|
|
|
static_assert(kStyleStructCount <= 32, "Bitmasks must be bigger!");
|
|
|
|
static const uint32_t kAllStructsMask = (1 << kStyleStructCount) - 1;
|
|
static const uint32_t kInheritedStructsMask = (1 << kInheritedStyleStructCount) - 1;
|
|
static const uint32_t kResetStructsMask = kAllStructsMask & (~kInheritedStructsMask);
|
|
|
|
static uint32_t BitFor(StyleStructID aID)
|
|
{
|
|
return 1 << static_cast<uint32_t>(aID);
|
|
}
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif /* nsStyleStructFwd_h_ */
|