Mypal/gfx/2d/NativeFontResourceMac.cpp

68 lines
1.8 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#include "NativeFontResourceMac.h"
#include "Types.h"
#include "mozilla/RefPtr.h"
#include "mozilla/gfx/Logging.h"
#ifdef MOZ_WIDGET_UIKIT
#include <CoreFoundation/CoreFoundation.h>
#endif
namespace mozilla {
namespace gfx {
/* static */
already_AddRefed<NativeFontResourceMac>
NativeFontResourceMac::Create(uint8_t *aFontData, uint32_t aDataLength)
{
// copy font data
CFDataRef data = CFDataCreate(kCFAllocatorDefault, aFontData, aDataLength);
if (!data) {
return nullptr;
}
// create a provider
CGDataProviderRef provider = CGDataProviderCreateWithCFData(data);
// release our reference to the CFData, provider keeps it alive
CFRelease(data);
// create the font object
CGFontRef fontRef = CGFontCreateWithDataProvider(provider);
// release our reference, font will keep it alive as long as needed
CGDataProviderRelease(provider);
if (!fontRef) {
return nullptr;
}
// passes ownership of fontRef to the NativeFontResourceMac instance
RefPtr<NativeFontResourceMac> fontResource =
new NativeFontResourceMac(fontRef);
return fontResource.forget();
}
already_AddRefed<ScaledFont>
NativeFontResourceMac::CreateScaledFont(uint32_t aIndex, Float aGlyphSize,
const uint8_t* aInstanceData, uint32_t aInstanceDataLength)
{
RefPtr<ScaledFontBase> scaledFont = new ScaledFontMac(mFontRef, aGlyphSize);
if (!scaledFont->PopulateCairoScaledFont()) {
gfxWarning() << "Unable to create cairo scaled Mac font.";
return nullptr;
}
return scaledFont.forget();
}
} // gfx
} // mozilla