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Upgrading glutin to the latest version allows building alacritty even
with old XRandr versions.
This is relevant for Debian machines (and other ancient systems).
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fixes #1086
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This cleans up a bunch of code.
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Updated the version of some dependencies.
This also changes to a new clippy version so clippy can work with the latest nightly compiler again. Some issues created by new lints have been fixed.
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This should fix #1020, #710, and #902
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This replaces the `font_size_modifier` stored on the `Term` struct with a `font_size` field.
With this change it is not necessary anymore to calculate the new font size from a delta but the current font size is always stored directly on the `Term` struct.
As a result of this it is now possible to increase the font size by more than 127 steps at runtime. It also limits the minimum font size to 1, so issues with the `font_size_modifier` dropping far below font size 1 are resolved with this change.
This fixes #955.
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Moved the custom cursor block on ft to the top, so no unnecessary
operations are executed when trying to draw a custom cursor glyph.
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Previously it was assumed that the font_key for the normal font is
always 0, because this assumption was a bit of a stretch, now the
font_key provided with the glyph is used. This is always the bold,
italics or normal font associated with the cell.
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With linux every box, line or underline should now have the
pixel-perfect size with any font at any size.
This uses the default font to get the size of the monospace box. It
assumes that the face 0 is always the primary font, if this is not the
case, this will probably break.
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Because some people have requested this change, the beam and underline
cursors now also transform into an empty box when the terminal loses
focus. Like this there is one unique symbol to indicate that a terminal
is not currently focused.
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The ascent calculation on darwin was more complicated than it needed to
be. By running a `.ceil()` instead of adding one, checking if it's 0,
substracting if it is, and then flooring it, a few instructions could be
shaved off.
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As requested a few comments have been added to the darwin code. There
also was an off by one error in the ascent calculation which has been
corrected.
The beam cursor width has also been tweaked to be slightly slimmer in
general.
All code added in this PR has also been run through the default rustfmt
to make sure the formatting is okay.
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The macos target now also supports the custom beam and underline
cursors. The only thing left for this is now is testing and making sure
it works with tiny fonts.
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In issue jwilm/asacritty#31 a few people complained about Beam cursor
being weird with their fonts, so to make all cursors uniform in
alacritty, a custom cursor has been added for the Beam too.
The beam cursor's height is always the full height of the monospace font
glyph bounding box. The width depends on the font size. It is calculated
using the width of the cell and dividing it by two. The block is always
aligned at the far-left of the cell.
The implementation is identical to the one of the underline cursor, but
it has been refactored so the glyphs are created in `lib.rs`, which can
be used by darwin/macos to implement these features too.
A small bug in the underline cursor has also been fixed, until now the
width was just using the width of the unicode character. Now it should
be using the full width of the monospace glyph bounding box with every
font.
Here are some screenshots for the Beam cursor:
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The unicode character comment has been updated to correctly reference
the character instead of commenting on the variable that might be that
character.
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Because rendering with macos works differently, the old underline cursor
is used for that. The cursor symbol has also been setup as a constant in
the font project.
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As mentioned in jwilm/alacritty#931, it can be troublesome if a font has
an underline symbol outside of the glyph's bounding box. This can lead
to the underline disappearing at the bottom of the terminal.
As a solution a symbol from the private use area was used as the
character code for the underline symbol. Whenever this symbol is
encountered, instead of rendering it, a custom block is rendered.
In this implementation the block has the full character as width and
sits flush with the bottom of the glyph's bounding box. The height is
half the distance between the baseline and the bottom of the bounding
box.
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The cascade list is now generated from Menlo for all fonts. This doesn't
feel correct to me, but it seems to give the expected behavior on macOS.
One of the problems cited was that certain glyphs like ❯ would not be
rendered with default cascade lists for some fonts.
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The source of the leak was loading up multiple copies of the FT_face
even when not necessary. Fonts are now appropriately cached for
FreeType when going through the `Rasterize::load_font` API.
Additionally, textures in the glyph cache are now reused.
The result of this is that resizing to already loaded fonts is free
from a memory consumption perspective.
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Fixes naming collision issue on Fedora 26.
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Rather than use DPI from config, use device-pixel-ratio from winit. This
is computed using the display DPI anyhow, so it should have the same
effect.
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To allow FontConfig to work with Bitmap font, we shall pass the size
we are interested in, and account for the size returned in the font
matching process. This is, because we cannot scale those fonts.
FontConfig will return the closest match, and we take its returned
pixel size back when we are rendering the glyphs.
There's an oddity when call set_char_size in TrueType - we need to
behave as if the DPI is 72. It is due to the following macro:
#define FT_REQUEST_HEIGHT( req ) \
( (req)->vertResolution \
? ( (req)->height * (FT_Pos)(req)->vertResolution + 36 ) / 72 \
: (req)->height )
Further work can allow for integer scaling of the largest bitmap
font variant.
Tested with Terminus PCF-type font under Linux.
This addresses issue #582 .
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The FreeType rasterizer now reads settings like antialias, rgba,
lcdfilter, and hintstyle and chooses FreeType settings accordingly. The
result is that Alacritty fonts should look similar to the rest of the
system.
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The hash map of key -> face was previouly cloned every time a glyph was
rasterized. This refactored the rasterization path to be more borrowck
friendly.
Sadly, this implementation is not *that* clean, but once NLLs land, much
of this can be cleaned up.
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The fontconfig `FcPattern` type is wrapped as `fc::Pattern` and
`fc::Pattern` ref. All methods for accessing data on the pattern now
return an `Iterator`. This API turns out to be much more ergonomic than
providing an integer index. We also override the default `nth`
implementation of `Iterator` on these accessors to allow random
(incremental only) access.
For instance, accessing `family` attributes from a pattern:
let families = pattern.family();
let second = pattern.nth(1);
Or printing available styles
for style in pattern.style() {
println!("style={}", style);
}
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Each Fc type is split into a separate file. This organization will help
as features are added to the bindings.
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Because there are so many clippy warnings in the current codebase,
this commit removes '#![cfg_attr(feature = "clippy", deny(clippy))]',
to make it easier to fix warnings incrementally.
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This silences a couple of compiler warnings in the build.
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We had previously vendored a very early version of this package before
it was ever published.
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Previously, the fallback symbol font copied the style of the font from
the config. However, the only available style for the fallback symbol
font is Normal slant, Normal weight.
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As it turns out, FreeType does not always provide glyph data in LCD mode
as we requested. We now correctly handle several common modes returned
from FreeType including Lcd, Mono, and Gray.
Note that we don't check number of grays at this time since it's
1. Almost always 256, according to FreeType docs
2. Not available in the Rust FreeType bindings being used
Resolves #515
Resolves #185
Resolves #482
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Descent was being reported as a positive value instead of negative. This
caused the background and text alignment to be off dramatically.
Resolves #545
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We previously had a hard-coded value for aligning glyphs within cells.
The font descent is now used, and the offset should be correct by
default.
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The changes to metric consumption rendered the size argument
unnecessary, remove it.
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The font metrics function was using freetype metrics in an ineffective
way, improve the use of those metrics and remove the now unnecessary
separate default values for font offset in linux.
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