gecko/gfx/thebes/gfxFontMissingGlyphs.h
Ehsan Akhgari a23cd291d5 Bug 924221 - Minimize the #includes in gfx/thebes; r=bjacob
--HG--
extra : rebase_source : af198eb9b9739ce718ba0d16c385624a722cde51
2013-10-07 19:15:59 -04:00

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1.4 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_FONTMISSINGGLYPHS_H
#define GFX_FONTMISSINGGLYPHS_H
#include "gfxTypes.h"
#include "gfxRect.h"
class gfxContext;
/**
* This class should not be instantiated. It's just a container
* for some helper functions.
*/
class gfxFontMissingGlyphs {
public:
/**
* Draw hexboxes for a missing glyph.
* @param aContext the context to draw to
* @param aRect the glyph-box for the glyph that is missing
* @param aChar the UTF16 codepoint for the character
* @param aAppUnitsPerDevPixel the appUnits to devPixel ratio we're using,
* (so we can scale glyphs to a sensible size)
*/
static void DrawMissingGlyph(gfxContext *aContext,
const gfxRect& aRect,
uint32_t aChar,
uint32_t aAppUnitsPerDevPixel);
/**
* @return the desired minimum width for a glyph-box that will allow
* the hexboxes to be drawn reasonably.
*/
static gfxFloat GetDesiredMinWidth(uint32_t aChar,
uint32_t aAppUnitsPerDevUnit);
};
#endif