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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 "ScaledFontCairo.h"
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#include "Logging.h"
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#ifdef MOZ_ENABLE_FREETYPE
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#include "cairo-ft.h"
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#endif
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#if defined(USE_SKIA) && defined(MOZ_ENABLE_FREETYPE)
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#include "skia/include/core/SkTypeface.h"
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#include "skia/include/ports/SkTypeface_cairo.h"
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#endif
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#include <string>
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typedef struct FT_FaceRec_* FT_Face;
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using namespace std;
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namespace mozilla {
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namespace gfx {
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// On Linux and Android our "platform" font is a cairo_scaled_font_t and we use
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// an SkFontHost implementation that allows Skia to render using this.
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// This is mainly because FT_Face is not good for sharing between libraries, which
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// is a requirement when we consider runtime switchable backends and so on
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ScaledFontCairo::ScaledFontCairo(cairo_scaled_font_t* aScaledFont, Float aSize)
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: ScaledFontBase(aSize)
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{
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SetCairoScaledFont(aScaledFont);
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}
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#if defined(USE_SKIA) && defined(MOZ_ENABLE_FREETYPE)
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SkTypeface* ScaledFontCairo::GetSkTypeface()
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{
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if (!mTypeface) {
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cairo_font_face_t* fontFace = cairo_scaled_font_get_font_face(mScaledFont);
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FT_Face face = cairo_ft_scaled_font_lock_face(mScaledFont);
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int style = SkTypeface::kNormal;
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if (face->style_flags & FT_STYLE_FLAG_ITALIC)
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style |= SkTypeface::kItalic;
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if (face->style_flags & FT_STYLE_FLAG_BOLD)
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style |= SkTypeface::kBold;
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bool isFixedWidth = face->face_flags & FT_FACE_FLAG_FIXED_WIDTH;
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cairo_ft_scaled_font_unlock_face(mScaledFont);
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mTypeface = SkCreateTypefaceFromCairoFont(fontFace, (SkTypeface::Style)style, isFixedWidth);
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}
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return mTypeface;
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}
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#endif
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} // namespace gfx
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} // namespace mozilla
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