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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_COMMON_FONT_LOADER_MAC_H_
#define CHROME_COMMON_FONT_LOADER_MAC_H_
#include <ApplicationServices/ApplicationServices.h>
#include "base/shared_memory.h"
#include "base/string16.h"
#ifdef __OBJC__
@class NSFont;
#else
class NSFont;
#endif
// Provides functionality to transmit fonts over IPC.
//
// Note about font formats: .dfont (datafork suitcase) fonts are currently not
// supported by this code since ATSFontActivateFromMemory() can't handle them
// directly.
class FontLoader {
public:
// Load a font specified by |font_to_encode| into a shared memory buffer
// suitable for sending over IPC.
//
// On return:
// returns true on success, false on failure.
// |font_data| - shared memory buffer containing the raw data for the font
// file.
// |font_data_size| - size of data contained in |font_data|.
static bool LoadFontIntoBuffer(NSFont* font_to_encode,
base::SharedMemory* font_data,
uint32* font_data_size);
// Given a shared memory buffer containing the raw data for a font file, load
// the font and return a container ref.
//
// |data| - A shared memory handle pointing to the raw data from a font file.
// |data_size| - Size of |data|.
//
// On return:
// returns true on success, false on failure.
// |font_container| - A font container corresponding to the designated font.
// The caller is responsible for releasing this value via ATSFontDeactivate()
// when done
static bool ATSFontContainerFromBuffer(base::SharedMemoryHandle font_data,
uint32 font_data_size,
ATSFontContainerRef* font_container);
};
#endif // CHROME_COMMON_FONT_LOADER_MAC_H_
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