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53 lines
1.6 KiB
C++
53 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "NativeFontResourceGDI.h"
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#include "Logging.h"
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#include "mozilla/RefPtr.h"
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#include "ScaledFontWin.h"
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#include "UnscaledFontGDI.h"
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namespace mozilla {
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namespace gfx {
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/* static */
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already_AddRefed<NativeFontResourceGDI> NativeFontResourceGDI::Create(
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uint8_t* aFontData, uint32_t aDataLength) {
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DWORD numberOfFontsAdded;
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HANDLE fontResourceHandle =
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::AddFontMemResourceEx(aFontData, aDataLength, 0, &numberOfFontsAdded);
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if (!fontResourceHandle) {
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gfxWarning() << "Failed to add memory font resource.";
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return nullptr;
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}
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RefPtr<NativeFontResourceGDI> fontResouce =
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new NativeFontResourceGDI(fontResourceHandle, aDataLength);
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return fontResouce.forget();
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}
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NativeFontResourceGDI::~NativeFontResourceGDI() {
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::RemoveFontMemResourceEx(mFontResourceHandle);
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}
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already_AddRefed<UnscaledFont> NativeFontResourceGDI::CreateUnscaledFont(
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uint32_t aIndex, const uint8_t* aInstanceData,
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uint32_t aInstanceDataLength) {
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if (aInstanceDataLength < sizeof(LOGFONT)) {
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gfxWarning() << "GDI unscaled font instance data is truncated.";
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return nullptr;
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}
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const LOGFONT* logFont = reinterpret_cast<const LOGFONT*>(aInstanceData);
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RefPtr<UnscaledFont> unscaledFont = new UnscaledFontGDI(*logFont);
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return unscaledFont.forget();
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}
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} // namespace gfx
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} // namespace mozilla
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