The Tor Browser: gfx/thebes/gfxFontMissingGlyphs.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-

     2  * This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #ifndef GFX_FONTMISSINGGLYPHS_H

     7 #define GFX_FONTMISSINGGLYPHS_H

     9 #include "gfxTypes.h"

    10 #include "gfxRect.h"

    12 class gfxContext;

    14 /**

    15  * This class should not be instantiated. It's just a container

    16  * for some helper functions.

    17  */

    18 class gfxFontMissingGlyphs {

    19 public:

    20     /**

    21      * Draw hexboxes for a missing glyph.

    22      * @param aContext the context to draw to

    23      * @param aRect the glyph-box for the glyph that is missing

    24      * @param aChar the UTF16 codepoint for the character

    25      * @param aAppUnitsPerDevPixel the appUnits to devPixel ratio we're using,

    26      *                             (so we can scale glyphs to a sensible size)

    27      */

    28     static void DrawMissingGlyph(gfxContext    *aContext,

    29                                  const gfxRect& aRect,

    30                                  uint32_t       aChar,

    31                                  uint32_t       aAppUnitsPerDevPixel);

    32     /**

    33      * @return the desired minimum width for a glyph-box that will allow

    34      * the hexboxes to be drawn reasonably.

    35      */

    36     static gfxFloat GetDesiredMinWidth(uint32_t aChar,

    37                                        uint32_t aAppUnitsPerDevUnit);

    38 };

    40 #endif

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