The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/2d/ScaledFontCairo.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,65 @@
     1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
     1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#include "ScaledFontCairo.h"
    1.10 +#include "Logging.h"
    1.11 +
    1.12 +#ifdef MOZ_ENABLE_FREETYPE
    1.13 +#include <ft2build.h>
    1.14 +#include FT_FREETYPE_H
    1.15 +#include "cairo-ft.h"
    1.16 +#endif
    1.17 +
    1.18 +#if defined(USE_SKIA) && defined(MOZ_ENABLE_FREETYPE)
    1.19 +#include "skia/SkTypeface.h"
    1.20 +#include "skia/SkTypeface_cairo.h"
    1.21 +#endif
    1.22 +
    1.23 +#include <string>
    1.24 +
    1.25 +typedef struct FT_FaceRec_* FT_Face;
    1.26 +
    1.27 +using namespace std;
    1.28 +
    1.29 +namespace mozilla {
    1.30 +namespace gfx {
    1.31 +
    1.32 +// On Linux and Android our "platform" font is a cairo_scaled_font_t and we use
    1.33 +// an SkFontHost implementation that allows Skia to render using this.
    1.34 +// This is mainly because FT_Face is not good for sharing between libraries, which
    1.35 +// is a requirement when we consider runtime switchable backends and so on
    1.36 +ScaledFontCairo::ScaledFontCairo(cairo_scaled_font_t* aScaledFont, Float aSize)
    1.37 +  : ScaledFontBase(aSize)
    1.38 +{ 
    1.39 +  SetCairoScaledFont(aScaledFont);
    1.40 +}
    1.41 +
    1.42 +#if defined(USE_SKIA) && defined(MOZ_ENABLE_FREETYPE)
    1.43 +SkTypeface* ScaledFontCairo::GetSkTypeface()
    1.44 +{
    1.45 +  if (!mTypeface) {
    1.46 +    cairo_font_face_t* fontFace = cairo_scaled_font_get_font_face(mScaledFont);
    1.47 +    FT_Face face = cairo_ft_scaled_font_lock_face(mScaledFont);
    1.48 +
    1.49 +    int style = SkTypeface::kNormal;
    1.50 +
    1.51 +    if (face->style_flags & FT_STYLE_FLAG_ITALIC)
    1.52 +    style |= SkTypeface::kItalic;
    1.53 +
    1.54 +    if (face->style_flags & FT_STYLE_FLAG_BOLD)
    1.55 +      style |= SkTypeface::kBold;
    1.56 +
    1.57 +    bool isFixedWidth = face->face_flags & FT_FACE_FLAG_FIXED_WIDTH;
    1.58 +    cairo_ft_scaled_font_unlock_face(mScaledFont);
    1.59 +
    1.60 +    mTypeface = SkCreateTypefaceFromCairoFont(fontFace, (SkTypeface::Style)style, isFixedWidth);
    1.61 +  }
    1.62 +
    1.63 +  return mTypeface;
    1.64 +}
    1.65 +#endif
    1.66 +
    1.67 +}
    1.68 +}