gecko-dev/gfx/thebes/gfxFT2FontBase.h

48 строки
1.7 KiB
C++

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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/. */
#ifndef GFX_FT2FONTBASE_H
#define GFX_FT2FONTBASE_H
#include "cairo.h"
#include "gfxContext.h"
#include "gfxFont.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/UnscaledFontFreeType.h"
class gfxFT2FontBase : public gfxFont {
public:
gfxFT2FontBase(const RefPtr<mozilla::gfx::UnscaledFontFreeType>& aUnscaledFont,
cairo_scaled_font_t *aScaledFont,
gfxFontEntry *aFontEntry,
const gfxFontStyle *aFontStyle);
virtual ~gfxFT2FontBase();
uint32_t GetGlyph(uint32_t aCharCode);
void GetGlyphExtents(uint32_t aGlyph,
cairo_text_extents_t* aExtents);
virtual uint32_t GetSpaceGlyph() override;
virtual bool ProvidesGetGlyph() const override { return true; }
virtual uint32_t GetGlyph(uint32_t unicode,
uint32_t variation_selector) override;
virtual bool ProvidesGlyphWidths() const override { return true; }
virtual int32_t GetGlyphWidth(DrawTarget& aDrawTarget,
uint16_t aGID) override;
cairo_scaled_font_t *CairoScaledFont() { return mScaledFont; };
virtual bool SetupCairoFont(DrawTarget* aDrawTarget) override;
virtual FontType GetType() const override { return FONT_TYPE_FT2; }
protected:
virtual const Metrics& GetHorizontalMetrics() override;
uint32_t mSpaceGlyph;
bool mHasMetrics;
Metrics mMetrics;
};
#endif /* GFX_FT2FONTBASE_H */