gfx/2d/NativeFontResourceGDI.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef mozilla_gfx_NativeFontResourceGDI_h
   8 #define mozilla_gfx_NativeFontResourceGDI_h
   9
  10 #include <windows.h>
  11
  12 #include "2D.h"
  13 #include "mozilla/AlreadyAddRefed.h"
  14 #include "mozilla/Vector.h"
  15
  16 namespace mozilla {
  17 namespace gfx {
  18
  19 class NativeFontResourceGDI final : public NativeFontResource {
  20  public:
  21   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(NativeFontResourceGDI, override)
  22
  23   /**
  24    * Creates a NativeFontResourceGDI if data is valid. Note aFontData will be
  25    * copied if required and so can be released after calling.
  26    *
  27    * @param aFontData the SFNT data.
  28    * @param aDataLength length of data.
  29    * @return Referenced NativeFontResourceGDI or nullptr if invalid.
  30    */
  31   static already_AddRefed<NativeFontResourceGDI> Create(uint8_t* aFontData,
  32                                                         uint32_t aDataLength);
  33
  34   virtual ~NativeFontResourceGDI();
  35
  36   already_AddRefed<UnscaledFont> CreateUnscaledFont(
  37       uint32_t aIndex, const uint8_t* aInstanceData,
  38       uint32_t aInstanceDataLength) final;
  39
  40  private:
  41   explicit NativeFontResourceGDI(HANDLE aFontResourceHandle, size_t aDataLength)
  42       : NativeFontResource(aDataLength),
  43         mFontResourceHandle(aFontResourceHandle) {}
  44
  45   HANDLE mFontResourceHandle;
  46 };
  47
  48 }  // namespace gfx
  49 }  // namespace mozilla
  50
  51 #endif  // mozilla_gfx_NativeFontResourceGDI_h