зеркало из https://github.com/mozilla/gecko-dev.git
118 строки
5.1 KiB
C++
118 строки
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is Oracle Corporation code.
|
|
*
|
|
* The Initial Developer of the Original Code is Oracle Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 2005
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Stuart Parmenter <pavlov@pavlov.net>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef GFX_TYPES_H
|
|
#define GFX_TYPES_H
|
|
|
|
#include "prtypes.h"
|
|
#include "nsAtomicRefcnt.h"
|
|
|
|
/**
|
|
* Currently needs to be 'double' for Cairo compatibility. Could
|
|
* become 'float', perhaps, in some configurations.
|
|
*/
|
|
typedef double gfxFloat;
|
|
|
|
#if defined(MOZ_STATIC_BUILD)
|
|
# define THEBES_API
|
|
#elif defined(IMPL_THEBES)
|
|
# define THEBES_API NS_EXPORT
|
|
#else
|
|
# define THEBES_API NS_IMPORT
|
|
#endif
|
|
|
|
/**
|
|
* gfx errors
|
|
*/
|
|
|
|
/* nsIDeviceContextSpec.h defines a set of printer errors */
|
|
#define NS_ERROR_GFX_GENERAL_BASE (50)
|
|
|
|
/* Font cmap is strangely structured - avoid this font! */
|
|
#define NS_ERROR_GFX_CMAP_MALFORMED \
|
|
NS_ERROR_GENERATE_FAILURE(NS_ERROR_MODULE_GFX,NS_ERROR_GFX_GENERAL_BASE+1)
|
|
|
|
/**
|
|
* 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
|
|
};
|
|
|
|
#define THEBES_INLINE_DECL_THREADSAFE_REFCOUNTING(_class) \
|
|
public: \
|
|
nsrefcnt AddRef(void) { \
|
|
NS_PRECONDITION(PRInt32(mRefCnt) >= 0, "illegal refcnt"); \
|
|
nsrefcnt count = NS_AtomicIncrementRefcnt(mRefCnt); \
|
|
NS_LOG_ADDREF(this, count, #_class, sizeof(*this)); \
|
|
return count; \
|
|
} \
|
|
nsrefcnt Release(void) { \
|
|
NS_PRECONDITION(0 != mRefCnt, "dup release"); \
|
|
nsrefcnt count = NS_AtomicDecrementRefcnt(mRefCnt); \
|
|
NS_LOG_RELEASE(this, count, #_class); \
|
|
if (count == 0) { \
|
|
mRefCnt = 1; /* stabilize */ \
|
|
delete this; \
|
|
return 0; \
|
|
} \
|
|
return count; \
|
|
} \
|
|
protected: \
|
|
nsAutoRefCnt mRefCnt; \
|
|
public:
|
|
|
|
#endif /* GFX_TYPES_H */
|