gfx/thebes/gfxFT2FontBase.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

michael@0 1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
michael@0 2 * This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #ifndef GFX_FT2FONTBASE_H
michael@0 7 #define GFX_FT2FONTBASE_H
michael@0 8
michael@0 9 #include "cairo.h"
michael@0 10 #include "gfxContext.h"
michael@0 11 #include "gfxFont.h"
michael@0 12 #include "mozilla/gfx/2D.h"
michael@0 13
michael@0 14 class gfxFT2FontBase : public gfxFont {
michael@0 15 public:
michael@0 16 gfxFT2FontBase(cairo_scaled_font_t *aScaledFont,
michael@0 17 gfxFontEntry *aFontEntry,
michael@0 18 const gfxFontStyle *aFontStyle);
michael@0 19 virtual ~gfxFT2FontBase();
michael@0 20
michael@0 21 uint32_t GetGlyph(uint32_t aCharCode);
michael@0 22 void GetGlyphExtents(uint32_t aGlyph,
michael@0 23 cairo_text_extents_t* aExtents);
michael@0 24 virtual const gfxFont::Metrics& GetMetrics();
michael@0 25 virtual uint32_t GetSpaceGlyph();
michael@0 26 virtual bool ProvidesGetGlyph() const { return true; }
michael@0 27 virtual uint32_t GetGlyph(uint32_t unicode, uint32_t variation_selector);
michael@0 28 virtual bool ProvidesGlyphWidths() { return true; }
michael@0 29 virtual int32_t GetGlyphWidth(gfxContext *aCtx, uint16_t aGID);
michael@0 30
michael@0 31 cairo_scaled_font_t *CairoScaledFont() { return mScaledFont; };
michael@0 32 virtual bool SetupCairoFont(gfxContext *aContext);
michael@0 33
michael@0 34 virtual FontType GetType() const { return FONT_TYPE_FT2; }
michael@0 35
michael@0 36 mozilla::gfx::FontOptions* GetFontOptions() { return &mFontOptions; }
michael@0 37 protected:
michael@0 38 uint32_t mSpaceGlyph;
michael@0 39 bool mHasMetrics;
michael@0 40 Metrics mMetrics;
michael@0 41
michael@0 42 // Azure font description
michael@0 43 mozilla::gfx::FontOptions mFontOptions;
michael@0 44 void ConstructFontOptions();
michael@0 45 };
michael@0 46
michael@0 47 #endif /* GFX_FT2FONTBASE_H */

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