Timothy Flynn
61f794d473
LibGfx: Handle multi-code point emoji when computing scaled glyph width
2023-03-02 18:33:44 +01:00
Timothy Flynn
34567bc145
LibGfx: Remove single-code point Font::glyph_or_emoji_width API
...
All callers are now aware of multi-code point emoji (and must remain so
going forward).
2023-02-24 20:28:23 +01:00
Timothy Flynn
a391ea3da3
LibGfx: Support computing a font's glyph width with code point iterators
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This allows consideration of multi-code point glyphs.
2023-02-22 10:14:36 +01:00
Aliaksandr Kalenik
1cc8895e4b
LibGfx: Introduce with_size method for Font
2023-02-11 20:59:13 +00:00
Andreas Kling
850b4a03e6
LibGfx: Cache font pixel metrics in ScaledFont
...
Instead of recomputing the pixel metrics over and over, we can just
cache them with the font and avoid a bunch of expensive computation.
2023-01-24 14:13:59 +01:00
Andreas Kling
2a61d66b0a
LibGfx: Make Font::preferred_line_height() more correct
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Return a float, and fix a bogus calculation of ascender + descender.
2023-01-06 12:02:20 +01:00
MacDue
ada48a1daf
LibGfx: Add ability to request glyphs at subpixel offsets to fonts
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This adds the option to pass a subpixel offset when fetching a glyph
from a font, this offset is currently snapped to thirds of a pixel
(i.e. 0, 0.33, 0.66). This is then used when rasterizing the glyph,
which is then cached like usual.
Note that when using subpixel offsets you're trading a bit of space
for accuracy. With the current third of a pixel offsets you can end
up with up to 9 bitmaps per glyph.
2023-01-05 12:09:35 +01:00
Andreas Kling
555d7a6fce
LibGfx: Make Font::glyph_width*() APIs return float
2023-01-03 15:25:02 +01:00
Andreas Kling
3407ab0fd1
LibGfx: Make Font::width() return a float
2023-01-03 15:25:02 +01:00
Andreas Kling
44025e837f
LibGfx: Use float when calculating text width in ScaledFont
...
This fixes an issue where we'd truncate the fractional part of each
glyph width, often making the returned width slightly too short.
2022-07-09 22:16:18 +02:00
Simon Wanner
5136c5ae1a
LibGfx: Move ScaledFont and new base class VectorFont out of TTF
2022-04-09 23:48:18 +02:00
