Previously, we'd unconditionally enable dual source blending for the
text foreground layer when rendering. That meant that if the user had
configured the fg color to include an alpha value it would get "stamped
through" the draw all the way to the background, making that whole pixel
take on that alpha value rather than allowing it to blend through the
way you might expect.
In prior releases that didn't matter, but since we now allow configuring
the fg color with alpha, and allow using escape sequences to set the fg
for a span to something with alpha, there is now a much higher chance of
something looking weird.
Dual source blending is only really needed for subpixel-aa and that
isn't enabled by default.
This commit changes the behavior to use regular alpha blending if the
main config (rather than a per-font override) hasn't set the freetype
load/render target to one that enables subpixel-aa.
That means that alpha channel values work as expected for fg color
by default.
If you want to enable subpixel-aa you need to enable it globally
and be aware that it will cause weirdness when trying to use alpha
channels for the fg text color.
The docs now also indicate this behavior.
This limitation could be removed by making text rendering significantly
more complex and I don't fancy doing that at this time.
Consolidate the attributes together rather than having them in separate
versioned sections so that it is a bit more readable.
Make a note about how attributes select from existing fonts rather than
apply styling effects to fonts.
refs: https://github.com/wez/wezterm/issues/2348
They prevented using other types of mouse events!
We don't have a good way to specify that kind of alias, so for now,
take it out and replace the examples in the docs with the more verbose
equivalents.
refs: #2173
refs: #2296
Adjusts how mouse events are matched so that we can now indicate whether
mouse reporting and alt-screen should be considered as part of the event
trigger criteria.
refs: #2173
refs: #581
The recent work on the scrollback made it easier to constrain the
search region, so expose those parameters to the Pane::search
interface and to the mux protocol.
Use those new parameters to constrain quickselect search to
1000 rows above and below the current viewport by default, and
add a new parameter to QuickSelectArgs that allows overriding that
range.
A follow-up commit could make the search/copy overlay issue a series
of searches in chunks so that it avoids blocking the UI when
searching very large scrollback.
refs: https://github.com/wez/wezterm/pull/1317
This allows the hook to choose how to handle eg: `wezterm start -- top`.
Previously, if you had implemented this event you would essentially lose
the ability to specify a command that you wanted to launch.
refs: https://github.com/wez/wezterm/issues/284
This simplifies the "change scheme based on dark mode" example
a lot. This was previously impossible to do because we didn't
have a lua module associated with the gui until recently, so
the only way to reference a gui-related object was via an
event callback.
refs: https://github.com/wez/wezterm/issues/2258
Moved the gradient function into the color module, but kept an alias
under the old name.
Gradients now return color objects.
Converting colors to string now uses rgba format when alpha is not 100%.
wezterm.color.parse() returns a color object that can be assigned in the
wezterm color config, and that can be used to adjust hue, saturation and
lightness, as well as calculate harmonizing colors (complements, triads,
squares) from the RGB/HSL color wheel.
An ExecDomain is a variation on WslDomain with the key difference
being that you can control how to map the command that would be
executed.
The idea is that the user can define eg: a domain for a docker
container, or a domain that chooses to run every command in its
own cgroup.
The example below shows a really crappy implementation as a
demonstration:
```
local wezterm = require 'wezterm'
return {
exec_domains = {
-- Commands executed in the woot domain have "WOOT" echoed
-- first and are then run via bash.
-- `cmd` is a SpawnCommand
wezterm.exec_domain("woot", function(cmd)
if cmd.args then
cmd.args = {
"bash",
"-c",
"echo WOOT && " .. wezterm.shell_join_args(cmd.args)
}
end
-- you must return the SpawnCommand that will be run
return cmd
end),
},
default_domain = "woot",
}
```
This commit unfortunately does more than should go into a single
commit, but I'm a bit too lazy to wrangle splitting it up.
* Reverts the nil/null stuff from #2177 and makes the
`ExtendSelectionToMouseCursor` parameter mandatory to dodge
a whole load of urgh around nil in table values. That is
necessary because SpawnCommand uses optional fields and the
userdata proxy was making that a PITA.
* Adds some shell quoting helper functions
* Adds ExecDomain itself, which is really just a way to
to run a callback to fixup the command that will be run.
That command is converted to a SpawnCommand for the callback
to process in lua and return an adjusted version of it,
then converted back to a command builder for execution.
refs: https://github.com/wez/wezterm/issues/1776
You can start a window in full screen mode using something like:
```lua
local wezterm = require 'wezterm'
local mux = wezterm.mux
wezterm.on("gui-startup", function()
local tab, pane, window = mux.spawn_window{}
window:gui_window():toggle_fullscreen()
end)
return {
}
```
refs: #177
refs: #284
`#XYZ` is parsed by `XParseColor` and it requires that the
hex nybbles are present in multiples of 3, and it has different
padding rules for under- or over-specified nybbles.
refs: https://github.com/wez/wezterm/issues/2209
Allow iterating all windows at the mux layer.
windows allow iterating tabs.
Tabs allow iterating panes.
Versions of iteration that report additional information (like index,
active and positioning) are also added.
Panes can now reference their containing tab and window objects.
Tabs can now reference their containing window object.
refs: https://github.com/wez/wezterm/issues/1598 (sort of)
refs: https://github.com/wez/wezterm/issues/225
Previously, the mux layer had no internal understanding of titles other
than the Pane::get_title method to return state from a pane.
Users have asked for ways to explicitly set titles on windows and tabs,
so this commit is a step towards that.
The mux window and tab objects now store a title string.
The terminal layer now emits Alert::WindowTitleChanged when the window
title is changed via eg: OSC 0 or OSC 2.
The mux layer will respond to Alert::WindowTitleChanged by resolving the
window that corresponds to the source pane and amending its title.
The MuxWindow and MuxTab objects now provide accessor methods for the
title.
TabInformation (as used by format-tab-title and format-window-title) now
exposes the underlying window_id as well as tab_title and window_title.
The tab title can be changed via the lua MuxTab type, but there is not
currently an escape sequence associated with this.
The defaults for format-tab-title and format-window-title don't
currently consider these new title strings.
refs: https://github.com/wez/wezterm/issues/1598
The issue here was that the from_dynamic impl derived for a struct
that was inlined in an enum didn't respect the the field properties
defined for the struct.
Refactor to reuse the same field_info helper used by the struct
code.
Update docs to clarify what the default value actually is.
refs: https://github.com/wez/wezterm/issues/2179
Adds a configuration option, `focus_change_repaint_delay` to allow customisation of the delay added in 9b6329b454.
The default delay remains 100ms, and can be disabled by setting it to `0`, if the workaround is not required on the user's system.
refs: #2063
refs: #1992
`wezterm.pad_righ` in the example should be `wezterm.pad_right`.
There's another problem, shared with the pad_left page, that `"o "` is rendered in the HTML with just one space, collapsing the two spaces to one, which is very misleading given what the example for this function does. It needs to be in a `<pre>` tag rather than just a `<code>` tag, but I don't know how to fix that from markdown.
