/* -*- 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/. */ #include "NativeFontResourceGDI.h" #include "Logging.h" #include "mozilla/RefPtr.h" #include "ScaledFontWin.h" namespace mozilla { namespace gfx { /* static */ already_AddRefed<NativeFontResourceGDI> NativeFontResourceGDI::Create(uint8_t *aFontData, uint32_t aDataLength, bool aNeedsCairo) { DWORD numberOfFontsAdded; HANDLE fontResourceHandle = ::AddFontMemResourceEx(aFontData, aDataLength, 0, &numberOfFontsAdded); if (!fontResourceHandle) { gfxWarning() << "Failed to add memory font resource."; return nullptr; } RefPtr<NativeFontResourceGDI> fontResouce = new NativeFontResourceGDI(fontResourceHandle, aNeedsCairo); return fontResouce.forget(); } NativeFontResourceGDI::~NativeFontResourceGDI() { ::RemoveFontMemResourceEx(mFontResourceHandle); } already_AddRefed<ScaledFont> NativeFontResourceGDI::CreateScaledFont(uint32_t aIndex, Float aGlyphSize, const uint8_t* aInstanceData, uint32_t aInstanceDataLength) { if (aInstanceDataLength < sizeof(LOGFONT)) { gfxWarning() << "GDI scaled font instance data is truncated."; return nullptr; } const LOGFONT* logFont = reinterpret_cast<const LOGFONT*>(aInstanceData); // Constructor for ScaledFontWin dereferences and copies the LOGFONT, so we // are safe to pass this reference. RefPtr<ScaledFontBase> scaledFont = new ScaledFontWin(logFont, aGlyphSize); if (mNeedsCairo && !scaledFont->PopulateCairoScaledFont()) { gfxWarning() << "Unable to create cairo scaled font GDI font."; return nullptr; } return scaledFont.forget(); } } // gfx } // mozilla