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c96601cb34
This makes the digits scale up to better fill the box, as it looks a bit odd to have the box grow with the font size but the digits remain tiny in the middle of it. One thing that may look a little odd with this version is that 6-digit hexboxes tend to get smaller digits than 4-digit ones with large font sizes. But I think that's OK; it allows the 4-digit chars to be more readable, and 6-digit (non-BMP) ones are generally much rarer. (And the whole thing is basically cosmetic anyhow; this isn't about rendering web content as intended, but trying to provide a bit of useful information when the content is somehow broken or not renderable.) Differential Revision: https://phabricator.services.mozilla.com/D173463
57 lines
1.7 KiB
C++
57 lines
1.7 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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#ifndef GFX_FONTMISSINGGLYPHS_H
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#define GFX_FONTMISSINGGLYPHS_H
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#include "mozilla/Attributes.h"
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#include "mozilla/gfx/MatrixFwd.h"
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#include "mozilla/gfx/Rect.h"
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namespace mozilla {
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namespace gfx {
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class DrawTarget;
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class Pattern;
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} // namespace gfx
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} // namespace mozilla
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/**
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* This class should not be instantiated. It's just a container
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* for some helper functions.
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*/
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class gfxFontMissingGlyphs final {
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typedef mozilla::gfx::DrawTarget DrawTarget;
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typedef mozilla::gfx::Float Float;
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typedef mozilla::gfx::Matrix Matrix;
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typedef mozilla::gfx::Pattern Pattern;
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typedef mozilla::gfx::Rect Rect;
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gfxFontMissingGlyphs() = delete; // prevent instantiation
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public:
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/**
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* Draw hexboxes for a missing glyph.
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* @param aChar the UTF16 codepoint for the character
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* @param aRect the glyph-box for the glyph that is missing
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* @param aDrawTarget the DrawTarget to draw to
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* @param aPattern the pattern currently being used to paint
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* @param aMat optional local-space orientation matrix
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*/
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static void DrawMissingGlyph(uint32_t aChar, const Rect& aRect,
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DrawTarget& aDrawTarget, const Pattern& aPattern,
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const Matrix* aMat = nullptr);
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/**
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* @return the desired minimum width for a glyph-box that will allow
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* the hexboxes to be drawn reasonably.
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*/
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static Float GetDesiredMinWidth(uint32_t aChar, uint32_t aAppUnitsPerDevUnit);
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static void Purge();
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static void Shutdown();
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};
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#endif
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