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Commit Graph

257 Commits

Author SHA1 Message Date
Wez Furlong
0473e1de78 wezterm: more adventures with background alpha
Is it *right*? Hard to say, but it looks better than
the behavior I see with master at the moment.

This is a partial revert of #413, but respins it to
try to get a better alpha value for glyphs.

refs: #413
refs: #470
2021-02-13 13:16:37 -08:00
Wez Furlong
7b86a84bc3 window: avoid invalidating on mouse move
We weren't didn't treat the "No existing hyperlink, No new hyperlink"
case as no change in hyperlink, and were invalidating the window on
every mouse except for those over text with a hyperlink.
2021-02-13 08:49:09 -08:00
Greg V
58e2a181f2 wayland: do not create OpenGL context before the configure event
The existing code seems to use "configure" for just resizes,
so introduce a "start" flag in pending events to handle the
initial configure.
2021-02-12 16:56:24 -08:00
Wez Furlong
6410827581 wayland: remove window from mux if gui fails to create window
This avoids a weird "headless hang" if a window doesn't come up with
opengl support.
2021-02-12 08:21:00 -08:00
Wez Furlong
6371ec501a OSC 52: update it so that it we respect primary vs. clipboard selection 2021-02-08 08:56:06 -08:00
Wez Furlong
005b492a8b deps: update to ordered-float 2.1 2021-02-07 22:54:02 -08:00
Benoit de Chezelles
1eaa7ed47c Add Ctrl-u in search mode to clear the current search pattern 2021-02-07 18:57:06 -08:00
Benoit de Chezelles
c576b9d534
Add cli option --config-file (#459)
* Add cli option --config-file
* Update cli arg doc & make it conflict with skipping config
* When the config is given explicitly (either using --config-file or via WEZTERM_CONFIG_FILE), failing to load this file will use the default config.
* Otherwise the config file is searched one by one in a few directories.
2021-02-07 08:47:33 -08:00
Wez Furlong
d9275e110c deps: update metrics from 0.12 -> 0.14 2021-02-03 23:50:29 -08:00
Wez Furlong
70a364eb3f wezterm: use full alpha blending for glyphs
refs: https://github.com/wez/wezterm/issues/413
2021-02-03 08:55:49 -08:00
Wez Furlong
0c1ecc0fad wezterm: macos: show a toast notification when an update is available
This commit implements the deprecated NSUserNotification bits needed
to be able to handle clicking on a notification and open our choice
of URL.

Ideally we'd use the newer UserNotifications framework, but that
requires code signing.
2021-02-01 23:37:43 -08:00
Wez Furlong
17435d9589 wezterm: make it clearer which keys to use in confirmation dialogs
refs: https://github.com/wez/wezterm/issues/436
2021-02-01 18:48:54 -08:00
Wez Furlong
6bfadfac0a macos: handle dead keys without IME
Dead key processing respects the
`send_composed_key_when_left_alt_is_pressed` and
`send_composed_key_when_right_alt_is_pressed` options.

See doc changes included in this commit for more info.

refs: https://github.com/wez/wezterm/issues/410
2021-01-31 17:06:30 -08:00
Wez Furlong
df3387e12c wezterm: change default copy/paste behavior on X11
This commit changes mouse-based selection and middle click to use the
PrimarySelection.

CTRL-SHIFT-{C,V} use Clipboard.

{SHIFT,CTRL}-Insert use PrimarySelection.

`CompleteSelection` and `CompleteSelectionOrOpenLinkAtMouseCursor` now
require a parameter to specify the destination clipboard.

Removed the `default_clipboard_XXX` options added in
8dad34fa61 in favor of just explicitly
assigning the key/mouse bindings.

closes: #417
2021-01-31 09:28:42 -08:00
Zeyi (Rice) Fan
6b9401365c
Only disable drop shadow on macOS when window background opacity is transparent (#445)
* only set shadow when background is transparent

* set opaque correctly
2021-01-30 07:58:53 -08:00
Wez Furlong
8dad34fa61 more configuration options for Copy/Paste
* Adds `CopyTo` and `PasteFrom` assignments that specify the
  destination/source.
* Adds `default_clipboard_copy_destination` and `default_paste_source`
  config options that specify the default destination/source for
  existing `Copy` and `Paste` operations (for @bew)
* Deprecating `PastePrimarySelection` in favor of `PasteFrom`.
* Added `CTRL-Insert` -> `Copy` (for @Babar)

Aside from the new key assignment, these changes shouldn't change
the default behavior, but do make it easier to consider changing
that in a later commit.

They should allow for example:

* Set `default_clipboard_copy_destination = "PrimarySelection"` to
  prevent populating the clipboard by default when using the mouse.
* Overriding the CTRL-Insert, CTRL-SHIFT-C to explicitly populate
  the clipboard
* Set `default_paste_source = "PrimarySelection"` for middle click
  to paste the selection.
* Overriding SHIFT-Insert, CTRL-SHIFT-V to explicitly paste from
  the clipboard.

refs: #417
2021-01-27 10:20:17 -08:00
Dylan Frankland
88f44f5b5f
Add erase mode to ClearScrollback action (#439)
* Add ClearBuffer action

Clears all lines, both visible and those scrolled off the top of the viewport, making the prompt line the new first line and resetting the scrollbar thumb to the full height of the window.

This is the behavior that Hyper / xterm has for clearing the terminal.

* Combine ClearBuffer into ClearScrollback as enum with associated erase mode

Makes it easier to manage the different options of clearing the terminal.
2021-01-25 21:26:23 -08:00
Wez Furlong
3256a949d8 wezterm: tidy up the "update available" banner
Change the underline color so it looks a bit less crowded on hover
2021-01-18 16:21:56 -08:00
Wez Furlong
89c1ac5b4c wezterm: add adjust_window_size_when_changing_font_size option
The default is true, which means that adjusting the font size will
cause the window to resize to preserve the number of rows/cols in
the terminal.

When set to false, the window size is preserved and the number of
terminal rows/cols is adjusted instead.

refs: https://github.com/wez/wezterm/issues/431
2021-01-18 13:23:02 -08:00
Wez Furlong
da3a41e018 wezterm: fix mapping scroll wheel to cursor up/down in alt screen
This appears to have been broken since the introduction of mouse
assignments :-/

This commit adds Pane::is_alt_screen_active so that the gui layer
can tell whether the alt screen is active, and allow passing down
the event.

refs: #429
2021-01-17 21:44:02 -08:00
Wez Furlong
957ad6af90 windows: avoid panic on startup
In 30b262c1c0 I introduced an unwrap
here.  On Windows, this code can be called before we've set up opengl.
Allow for that!
2021-01-17 10:24:58 -08:00
Wez Furlong
fa4bbbd077 ugh, fix stupid formatting syntax error
refs: https://github.com/wez/wezterm/issues/428
2021-01-16 08:47:36 -08:00
Wez Furlong
4bbe67aac3 gui: refuse to scale to sizes where cell height would be < 2 pixels
refs: https://github.com/wez/wezterm/issues/428
2021-01-16 08:45:38 -08:00
Wez Furlong
db964a91a0 gui: handle a failure to compute font metrics at very small scales
https://github.com/wez/wezterm/issues/428
2021-01-16 08:27:32 -08:00
Wez Furlong
42f3a729a8 gui: fix OutOfTextureSpace error when scaling to large font sizes
refs: https://github.com/wez/wezterm/issues/428
2021-01-16 08:12:45 -08:00
Wez Furlong
30b262c1c0 gui: tidy up RenderState enum
Since we no longer have our fallback Software renderer (only mesa),
remove what has become an empty variant and hoist the GL state up
into RenderState, holding Option<RenderState> in the window.
2021-01-16 08:00:17 -08:00
Wez Furlong
f39c4f9d6e deps: update to mlua 0.5 2021-01-13 10:06:35 -08:00
Wez Furlong
5d360ae365 termwiz: Remove anyhow::Result from public API
It's been replaced with an opaque termwiz error type instead.

This is a bit of a more conservative approach than that in (refs: #407)
and has less of an impact on the surrounding code, which appeals to
me from a maintenance perspective.

refs: #406
refs: #407
2021-01-08 00:32:30 -08:00
Wez Furlong
697d41aeb1 Render the various underline styles
```
$ printf "\x1b[58;2;255;0;0m\x1b[4msingle\x1b[21mdouble\x1b[60mcurly\x1b[61mdotted\x1b[62mdashed\x1b[0m"
```

refs: https://github.com/wez/wezterm/issues/415
2021-01-05 23:46:15 -08:00
Wez Furlong
93576691fe compute most line-glyphs on-the-fly
We now have too many permutations to pre-render in the initial
texture size, so do this on the fly instead.

refs: https://github.com/wez/wezterm/issues/415
2021-01-05 14:16:21 -08:00
Wez Furlong
7c8f2b7445 respect new underline color when rendering
```
printf "\x1b[4m\x1b[58;2;255;0;0mred underline\x1b[0m"
```

prints "red underline" in the foreground color, with an
underline that is bright red `rgb(255, 0, 0)`.

refs: https://github.com/wez/wezterm/issues/415
2021-01-05 12:12:16 -08:00
Wez Furlong
b35f3aa199 Add Curly, Dotted, Dashed and colored underline concept to model
These aren't currently rendered, but the parser and model now support
recognizing expanded underline sequences:

```
CSI 24 m   -> No underline
CSI 4 m    -> Single underline
CSI 21 m   -> Double underline
CSI 60 m   -> Curly underline
CSI 61 m   -> Dotted underline
CSI 62 m   -> Dashed underline

CSI 58 ; 2 ; R ; G ; B m   -> set underline color to specified true color RGB
CSI 58 ; 5 ; I m           -> set underline color to palette index I (0-255)
CSI 59                     -> restore underline color to default
```

The Curly, Dotted and Dashed CSI codes are a wezterm assignment in the
SGR space.  This is by no means official; I just picked some numbers
that were not used based on the xterm ctrl sequences.

The color assignment codes 58 and 59 are prior art from Kitty.

refs: https://github.com/wez/wezterm/issues/415
2021-01-05 10:29:36 -08:00
Wez Furlong
b8cabc50bc include wezterm version in opengl init log line 2020-12-30 12:07:49 -08:00
Wez Furlong
234fe40be6 compare_and_swap -> compare_exchange
Nightly Rust (which I'm using for M1 builds) deprecates the former
so switch to the latter.
2020-12-29 16:41:55 -08:00
Wez Furlong
154ab20d0e wezterm-gui: we now start an implicit unix mux server
When running the GUI, we generate a unix domain socket path for
the current process and start up a mux server for that path.

This allows `wezterm cli list` and `wezterm cli split-pane` to
work implicitly inside the GUI session.

When started in this way, the mux server is not persistent;
when the GUI process is terminated, all of its windows, tabs
and panes are terminated.

refs: https://github.com/wez/wezterm/issues/230
2020-12-29 15:58:39 -08:00
Wez Furlong
1c0817b2b2 mux: factor out server bits to helper crate 2020-12-29 15:25:15 -08:00
Wez Furlong
cf6914c5d8 window: remove non-opengl paint, rename paint_opengl -> paint 2020-12-29 13:25:35 -08:00
Wez Furlong
cf418c34e3 window: consolidate opengl_initialize with created callback
Since we now always init opengl and fail to create a window if that
fails, may as well combine these two callbacks.
2020-12-29 12:44:39 -08:00
Wez Furlong
ec7d511750 window: implicitly enable_opengl at new_window creation 2020-12-29 12:31:25 -08:00
Wez Furlong
4c22de9f6d window: make opengl always required 2020-12-29 12:13:23 -08:00
Wez Furlong
da55e12b5e Add selection_word_boundary configuration option
refs: https://github.com/wez/wezterm/issues/405
2020-12-28 14:13:25 -08:00
Wez Furlong
94ca16d987 gui: round x-coordinate when selecting text
But don't round the y-coordinate as that one seems OK.

refs: https://github.com/wez/wezterm/issues/350
2020-12-28 13:44:30 -08:00
Wez Furlong
7cbbb49ab4 deps: ordered-float -> 2.0 2020-12-28 08:25:43 -08:00
Wez Furlong
d302f82335 window+gui: macOS: add native_macos_fullscreen_mode option
Defaults to false.  If set to true, the ToggleFullScreen action
prefers native macOS fullscreen mode.

refs: https://github.com/wez/wezterm/issues/177
2020-12-27 22:34:31 -08:00
Wez Furlong
cd997cbe48 window+gui: migrate prefer_egl to WindowConfiguration 2020-12-27 22:06:04 -08:00
Wez Furlong
228356105e window+gui: migrate enable_wayland to WindowConfiguration 2020-12-27 22:00:51 -08:00
Wez Furlong
fb53f98295 window+gui: migrate windows dead keys config to WindowConfiguration
untested as I'm on a mac, but seems like it might compile...
2020-12-27 21:56:16 -08:00
Wez Furlong
44ca61da66 window+gui: introduce WindowConfiguration trait
This adopts a similar technique to that used to pass the wezterm
config to the term crate, but this time it is for passing it to
the window crate.

The use_ime option has been ported over to this new mechanism.
2020-12-27 21:51:56 -08:00
Wez Furlong
7ae52cd2b5 wezterm: plumbing for FullScreen action
Hooks up toggling fullscreen mode on macos, with plumbing for
other systems.

I prefer not to use the "modern fullscreen" mode because I find
the transition animations in macOS are horrendously slow.

I'll make an option to allow selecting whether that is used or not
in a follow-on diff.

refs: https://github.com/wez/wezterm/issues/177
2020-12-27 19:15:47 -08:00
Wez Furlong
b438a9aa6f log::info! when clicking an URL, rather than log::error! 2020-12-26 19:20:23 -08:00
Wez Furlong
e7677aa212 suppress updater window
The new banner is less intrusive; it doesn't steal focus
and for users that have multiple wezterm processes, doesn't show
one per process.

So let's turn off the updater window.  I'm considering moving the
"smart" upgrade links into a helper subcommand, but that's for
another diff.
2020-12-26 19:17:17 -08:00
Wez Furlong
2605d63247 update checker: save latest release info, show banner on startup
This commit keeps the content from the last release check in a local
file and reads from that file on startup to set a two-line release
info banner in each new pane.
2020-12-26 19:07:52 -08:00
Wez Furlong
6b414bebc9 tweak updating checking
* Allow injecting some initial output to new panes
* Have the update checker set this new-pane-banner to a short
  upsell to let the user know there is an update.
* Refactor toast notifications into their own crate
* Have the update checker call a new stub function that triggers
  a toast notification with an URL... but it does nothing because
  the rust ecosystem doesn't support this on macos yet and I'm
  writing this code there
2020-12-26 18:22:44 -08:00
Wez Furlong
586d18c9fd QuitApplication now respects window_close_confirmation
closes: https://github.com/wez/wezterm/issues/398
closes: https://github.com/wez/wezterm/issues/280
2020-12-26 15:37:41 -08:00
Wez Furlong
b3ac77aa92 wezterm: allow adding images to termwiztermtab apps
Tidies up the plumbing around pixel dimensions so that ImageData
can be rendered via the termwiztermtab bits.

I put this together to play with sticking the wezterm logo in
the close confirmation dialogs.  I didn't end up using that though,
but have preserved the commented code for use in future hacking.
2020-12-26 14:01:48 -08:00
Wez Furlong
1aeabba79f Add confirmation to QuitApplication action
refs: https://github.com/wez/wezterm/issues/280
2020-12-25 18:20:58 -08:00
Wez Furlong
c66e8f5c5e use $WEZTERM_LOG to configure log levels ad-hoc
80214319ae broke the use of RUST_LOG to
turn up trace logging.

This commit refactors logger initialization into the env-bootstrap crate
so that it is centralized, and adopts the use of `WEZTERM_LOG` to
override the default logging filters, rather than `RUST_LOG`.
2020-12-23 12:19:19 -08:00
Wez Furlong
286bc1c8ec cargo fmt 2020-12-23 11:41:12 -08:00
Wez Furlong
3d81740a04 wezterm: refactor close confirmations
Make pane, tab, window close confirmations use the same core function.

Make that function accept mouse input so that closing the window with
a mouse click doesn't require switching to the keyboard to confirm
the close.

refs: #280
2020-12-23 11:37:23 -08:00
Wez Furlong
5787bdff53 wezterm: closing a window now prompts for confirmation by default
Adds `window_close_confirmation = "AlwaysPrompt"` as the default
configuration.  Can be set to `NeverPrompt` to disable prompting.
2020-12-23 09:58:38 -08:00
Wez Furlong
bcaba72472 adjust log level for debug_key_events output 2020-12-22 11:35:17 -08:00
Wez Furlong
61ce4cd954 fixup some more log levels 2020-12-21 22:13:41 -08:00
Wez Furlong
80214319ae adjust log levels
Revise logging so that we use info level for things that we want
to always log, and adjust the logger config to always log info
level messages.

That means shifting some warning level logs down lower to debug level so
that they aren't noisy.

closes: https://github.com/wez/wezterm/issues/388
2020-12-20 22:01:06 -08:00
Wez Furlong
0ae494fb94 config: add line_height config option
The default is 1.0.  `line_height` is used to scale the effective
cell height, increasing the amount of space between font baselines.

refs: https://github.com/wez/wezterm/discussions/387
2020-12-20 14:33:18 -08:00
Wez Furlong
eb83f28810 deps: dirs -> dirs_next
I saw that former is unmaintained, and dependabot wants
to upgrade that one.
2020-12-10 10:08:49 -08:00
Wez Furlong
c1fa08319e deps: upgrade euclid -> 0.22 2020-12-10 10:03:30 -08:00
dependabot[bot]
b56606e9cb build(deps): bump http_req from 0.6.1 to 0.7.1
Bumps [http_req](https://github.com/jayjamesjay/http_req) from 0.6.1 to 0.7.1.
- [Release notes](https://github.com/jayjamesjay/http_req/releases)
- [Commits](https://github.com/jayjamesjay/http_req/compare/v0.6.1...v0.7.1)

Signed-off-by: dependabot[bot] <support@github.com>
2020-12-10 10:01:53 -08:00
Wez Furlong
30ff3d6542 fixup build for macos after notify_rust updates 2020-12-09 14:30:18 -08:00
Wez Furlong
1635576413 deps: update notify-rust to 4 2020-12-09 14:19:07 -08:00
Wez Furlong
526df72544 textwrap -> 0.13 2020-12-09 14:07:35 -08:00
Wez Furlong
8eb0dac92c Update lru -> 0.6 2020-12-09 14:04:56 -08:00
Wez Furlong
22b4e99c82 tidy up default_dpi vs DEFAULT_DPI
This commit breaks the dependency from config -> window,
which in turn breaks the dependency from mux-server -> x11 libs
on linux.
2020-12-09 13:48:23 -08:00
Wez Furlong
92827a1bea wezterm: default dpi on macOS is now 72
https://wiki.lazarus.freepascal.org/Cocoa_DPI states that the dpi
on macOS is 72.  That matches up to the experimental results reported
in #332 (in which 74.0 appears about the right size).

This commit introduces a `DEFAULT_DPI` constant that is set to 72 on
macOS and 96 on other operating systems.

The result of this is that a 10 point Menlo font now appears to be
the same size in Terminal.app and WezTerm.app.

refs: https://github.com/wez/wezterm/issues/332
2020-12-06 18:34:06 -08:00
Wez Furlong
19843ba8f3 wezterm-gui: fixup compilation 2020-12-06 14:30:45 -08:00
Wez Furlong
61c52af491 wezterm: add raw_code concept to input layer
This commit is a bit noisy because it also meant flipping the key map
code from using the termwiz input types to the window input types, which
I thought I'd done some time ago, but clearly didn't.

This commit allows defining key assignments in terms of the underlying
operating system raw codes, if provided by the relevant layer in the
window crate (currently, only X11/Wayland).

The raw codes are inherently OS/Machine/Hardware dependent; they are the
rawest value that we have available and there is no meaningful
understanding that we can perform in code to understand what that key
is.

One useful property of the raw code is that, because it hasn't gone
through any OS level keymapping processing, its value reflects its
physical position on the keyboard, allowing you to map keys by position
rather than by value.  That's useful if you use software to implement
eg: DVORAK or COLEMAK but want your muscle memory to kick in for some of
your key bindings.

New config option:

`debug_key_events = true` will cause wezterm to log an "error" to stderr
each time you press a key and show the details in the key event:

```
2020-12-06T21:23:10.313Z ERROR wezterm_gui::gui::termwindow > key_event KeyEvent { key: Char('@'), modifiers: SHIFT | CTRL, raw_key: None, raw_modifiers: SHIFT | CTRL, raw_code: Some(11), repeat_count: 1, key_is_down: true }
```

This is useful if you want to figure out the `raw_code` for a key in your
setup.

In your config, you can use this information to setup new key bindings.
The motivating example for me is that because `raw_key` (the unmodified
equivalent of `key`) is `None`, the built-in `CTRL-SHIFT-1` key
assignment doesn't function for me on Linux, but I can now "fix" this in
my local configuration, taking care to make it linux specific:

```lua
local wezterm = require 'wezterm';
local keys = {}

if wezterm.target_triple == "x86_64-unknown-linux-gnu" then
  local tab_no = 0
  -- raw codes 10 through 19 correspond to the number key 1-9 positions
  -- on my keyboard on my linux system.  They may be different on
  -- your system!
  for i = 10, 20 do
    table.insert(keys, {
      key="raw:"..tostring(i),
      mods="CTRL|SHIFT",
      action=wezterm.action{ActivateTab=tab_no},
    })
    tab_no = tab_no + 1
  end
end

return {
  keys = keys,
}
```

Notice that the key assignment accepts encoding a raw key code using
a value like `key="raw:11"` to indicate that you want a `raw_code` of
`11` to match your key assignment.  The `raw_modifiers` portion of
the `KeyEvent` is used together with the `raw_code` when deciding
the key assignment.

cc: @bew
2020-12-06 13:41:29 -08:00
Wez Furlong
0fa2edb1f4 wezterm: fix panic in early startup
164adb78e3 added blowing some
opengl related state during resize, however, on some systems
(BigSur with M1 silicon, perhaps also Intel?) and Windows 10
can generate a resize event before we've spun up opengl, so
we need to make this conditional.

refs: #359
closes: #358
2020-12-05 10:43:20 -08:00
Wez Furlong
e86d949dae cargo update
We need a newer version of ring in order to compile on M1

refs: #343
2020-12-05 10:35:00 -08:00
Wez Furlong
bbb953610d wezterm: fix x-scale calculation
Need to account for the number of cells occupied by the glyph,
otherwise we'll always scale to a single cell for double width
glyphs.

refs: #342
2020-12-04 22:36:20 -08:00
Wez Furlong
d934a0ae88 wezterm-font: move FontDatabase into FontConfiguration
Previously, we'd enumerate the font dirs on every font resolve for
every bit of styled text.

This moves the new FontDatabase instances to be single instanced
in the FontConfiguration.  The font-dirs will be scanned once
on a config reload, but the built-in in-memory fonts will only
every be enumerated once per FontConfiguration instance.
2020-11-25 19:21:51 -08:00
Wez Furlong
164adb78e3 wezterm: blow more caches when scaling changes
The recent addition of dynamic fallback resolution highlighted this
issue.

The test scenario is:

1. Output some glyphs that need dynamic fallback
2. ctrl-+ to change the font scaling
3. rasterization fails because of some bad cached state; the font_idx's
   were invalidated by the scale change which reset the dynamically
   discovered fallback fonts.

The resolution is to blow the glyph and shape caches when scaling
is changed.
2020-11-25 16:19:56 -08:00
Wez Furlong
80488ea14d improve freetype error context
Tag some font related errors with more context.
This makes it a bit easier to understand where a problem
is coming from.
2020-11-25 16:19:56 -08:00
Wez Furlong
3b69586416 wezterm: add allow_square_glyphs_to_overflow_width = "WhenFollowedBySpace"
Adds an option to control how wide glyphs (more specifically: square
aspect glyphs) are scaled to conform to their specified width.

The three options are `Never`, `Always`, and `WhenFollowedBySpace`.

When a glyph is loaded, if it is approximately square, this option is
consulted.  If overflow is permitted then the glyph will be scaled
to fit only the height of the cell, rather than ensuring that it fits
in both the height and width of the cell.

refs: #342
2020-11-24 10:38:20 -08:00
Wez Furlong
d97e4e44a9 use double wide glyphs for square emoji 2020-11-24 10:17:44 -08:00
Wez Furlong
98f289f511 wezterm-font: improve fallback font scaling
Use the scaling factor between the font metrics for the base font
and those of the fallback font selected for a given glyph.

The scenario is this: the base font is typically the first one selected
from the font configuration.  There may be multiple fallback fonts that
are different sizes; for instance, the Font Awesome font has glyphs that
are square in aspect and are thus about twice the width of a typical
textual monospace font.  Similarly, Noto Color Emoji is another square
font but that has a single set of bitmap strikes at a fixed 128 px
square.

The shaper returns advance metrics in the scale of the containing font,
and the rasterizer will target the supplied size and dpi.

We need to scale these to match the base metrics.

Previously we used a crude heuristic to decide whether to scale,
and that happened to work for Noto Color Emoji but not for Font Awesome,
whose metrics were just inside the bounds of the heuristic.

This commit allows retrieving the metrics for a given font_idx so
that we can compute the correct scale factor without any heuristics,
and applies that to the rasterized glyph.

refs: https://github.com/wez/wezterm/issues/342
2020-11-23 16:59:30 -08:00
Wez Furlong
a063d20cf0 wezterm: improve shaping of emoji
This is one of those massive time sinks that I almost regret...
As part of recent changes to dust-off the allsorts shaper, I noticed
that the harfbuzz shaper wasn't shaping as well as the allsorts one.

This commit:

* Adds emoji-test.txt, a text file you can `cat` to see how well
  the emoji are shaped and rendered.

* Fixes (or at least, improves) the column width calculation for
  combining sequences such as "deaf man" which was previously calculated
  at 3 cells in width when it should have just been 2 cells wide, which
  resulted in a weird "prismatic" effect during rendering where the
  glyph would be rendered with an extra RHS portion of the glyph across
  3 cells.

* Improved/simplified the clustering logic used to compute fallbacks.
  Previously we could end up with some wonky/disjoint sequence of
  undefined glyphs which wouldn't be successfully resolved from a
  fallback font.  We now make a better effort to consolidate runs of
  undefined glyphs for fallback.

* For sequences such as "woman with veil: dark skin tone" that occupy a
  single cell, the shaper may return 3 clusters with 3 glyphs in the
  case that the font doesn't fully support this grapheme.  At render
  time we'd just take the last glyph from that sequence and render it,
  resulting in eg: a female symbol in this particular case.  It is
  generally a bit more useful to show the first glyph in the sequence
  (eg: person with veil) rather than the gender or skin tone, so the
  renderer now checks for this kind of overlapping sequence and renders
  only the first glyph from the sequence.
2020-11-23 13:45:38 -08:00
Wez Furlong
fba2159839 deps: remove unused deps
Not all of these are needed in these crates (copypasta resulting
from splitting out modules)
2020-11-20 12:37:38 -08:00
Wez Furlong
91f1cc21fc mux/wezterm: move Renderable into Pane
This makes it easier to overrride/overlay inside the mux when
indicating that we are in tmux mode.

refs: https://github.com/wez/wezterm/issues/336
2020-11-20 09:24:56 -08:00
Wez Furlong
6716d40222 Add note about AA shadows to changelog
(and fix a typo in the comment in the shader)

closes: #331
2020-11-20 09:10:39 -08:00
Wez Furlong
8c858ae6ce wezterm: avoid "shadow" AA artifacts when fg and bg are the same
When subpixel or greyscale AA are in use, the glyph data includes
some lighter and darker shaded pixels.  That's their purpose,
but if the fg and bg color are the same, the expectation is that
the glyph is invisible and we don't want "phantom" pixels around
the character.

This commit adjusts the shader to set the color to transparent
when the fg and bg are the same, and we are not rendering a color
emoji.

refs: #331
2020-11-20 08:49:12 -08:00
Wez Furlong
e8ad765ff5 wezterm: add SelectionMode::SemanticZone
This makes it possible to configure wezterm to eg: triple click
on command input (or output) to select the entire input or output
without messing around trying to find the bounds.

The docs have an example of how to configure this; it requires
setting up shell integration to define the appropriate semantic
zones.
2020-11-15 22:23:18 -08:00
Wez Furlong
720a6fd9b6 wezterm: fixup dark edges on text
9892b16d40 adjusted how the text
colors are produced; it resulted in some ugly dark edges, especially
on lighter backgrounds.

This commit routes that tint via an alpha compositing helper which
produces smoother edges.

refs: #320
2020-11-15 15:17:23 -08:00
Wez Furlong
9892b16d40 wezterm-font: tidy up some font hinting/aa options
This commit more cleanly separates the load from the render flags,
and fixes up the render call; at some point this got messed up such
that we'd never end up with freetype returning subpixel format data
(LCD) and instead we'd only ever get grayscale data.

With that fixed, it's apparent that the colorization of the glyph
data was wonky in the shader so this commit also cleans this up.

refs: #320
refs: #121
2020-11-14 17:27:31 -08:00
Wez Furlong
bc1e12e0f5 wezterm: fix scaling of color emoji
If you have a primary font whose height is a bit more than double the
width then a double-wide emoji would be scaled to a bit more than two
cells in width.

This commit adjust the glyph scaling to check both the x and y scaling
to ensure that they glyph fits within the appropriate number of cells.

This has the consequence of rendering eg: the heart emoji smaller than
in previous versions; the heart glyph is typically square but the
broadly used concept of width for the heart unicode character is a
single cell.  Previously we'd incorrectly render this double wide.
I'm not sure of a way to do better than we are right now because
freetype doesn't provide much help for scaling this kind of bitmap
font AFAICS.

refs: #320
2020-11-14 13:43:30 -08:00
Wez Furlong
ab87752269 wezterm: add --class option to specify window class
The class name is process-global; all windows created by that
instance of wezterm will have the same class name.

closes: #325
2020-11-13 08:15:35 -08:00
Wez Furlong
c3c9ed881c wezterm: fix SpawnWindow not using cwd from current pane
There were two problems:

* It was using an old code path that didn't even try to resolve the cwd
* The NewWindow code path would "forget" the originating window and then
  fail to resolve the current pane + path from the new, empty window
  that it is building.

closes: https://github.com/wez/wezterm/issues/322
2020-11-12 08:26:35 -08:00
Wez Furlong
37a3f7db5f wezterm: add ScrollToPrompt key assignment
Adds some supporting methods for computing the `SemanticZone`s
in the display and a key assignment that allows scrolling the
viewport to jump to the next/prev Prompt zone.
2020-11-08 09:58:02 -08:00
Jeremy Fitzhardinge
81d5a92b66 Build fix for no implementation for &[u8] == std::vec::Vec<u8>`
Full error
```
error[E0277]: can't compare `&[u8]` with `std::vec::Vec<u8>`
   --> wezterm-gui/src/gui/termwindow.rs:817:40
    |
817 |                     if existing.data() == data {
    |                                        ^^ no implementation for `&[u8] == std::vec::Vec<u8>`
    |
    = help: the trait `std::cmp::PartialEq<std::vec::Vec<u8>>` is not implemented for `&[u8]`

error: aborting due to previous error
```
2020-11-07 07:48:21 -08:00
Wez Furlong
cfef4fd0ca wezterm: adjust pixel width and height when dragging splits
The drag would update the cell dimensions but not the pixel dimensions,
which results in weird image scaling.

refs: #312
2020-11-02 19:56:46 -08:00
Wez Furlong
b239801085 wezterm: fixup wezterm ssh host
Needed to re-order a couple of things to match recent changes.

Also: don't hard fail if the ssh server rejects a setenv request,
just log the error instead.
2020-10-31 11:45:30 -07:00
Wez Furlong
5619eb718c wezterm: default inactive_pane_hsb to dim/desaturate
Let's make the suggested config in the docs the default
and dim/desaturate inactive panes slightly.
2020-10-30 23:12:35 -07:00
Wez Furlong
3808cf3f58 wezterm: fixup overall background color
When padding was set, it was being overwritten by black whitespace
unconditionally.  This fixes that.

refs: #309
2020-10-27 22:09:03 -07:00
Wez Furlong
42aeb6f11b wezterm: retry initial texture allocation
A consequence of reducing the initial texture size is that for
larger starting font sizes it isn't big enough.  We need to make
a couple of passes to determine the required size, so that's
what this commit does.

refs: #307
2020-10-25 16:09:47 -07:00
Wez Furlong
198c40103b wezterm: fix iterm2/sixel images rendering in wrong pane
The quad selected for the image cells didn't account for
the pane origin.
2020-10-25 10:30:15 -07:00
Wez Furlong
f8c35f191b wezterm: add env bootstrap to mux server, too 2020-10-24 23:33:31 -07:00
Wez Furlong
21dbeb6f83 wezterm: fixup APPIMAGE environment consistently
Need to apply the same logic in wezterm-gui as we do
in the wezterm-cli.
2020-10-24 23:21:03 -07:00
Wez Furlong
442c9a26d1 wezterm-gui: partial revert of 91ce0b77ea
Apparently macOS/ANGLE doesn't like the shader changes, so
roll them back.

refs: #292
2020-10-24 16:47:38 -07:00
Wez Furlong
7e8c5a06bb split gui into wezterm-gui executable
This commit moves a bunch of stuff around such that `wezterm` is now a
lighter-weight executable that knows how to spawn the gui, talk to
the mux or emit some escape sequences for imgcat.

The gui portion has been moved into `wezterm-gui`, a separate executable
that doesn't know about the CLI or imgcat functionality.

Importantly, `wezterm.exe` is no longer a window subsystem executable
on windows, which makes interactions such as `wezterm -h` feel more
natural when spawned from `cmd`, and should allow
`type foo.png | wezterm imgcat` to work as expected.

That said, I've only tested this on linux so far, and there's a good
chance that something mac or windows specific is broken by this
change and will need fixing up.

refs: #301
2020-10-24 16:40:15 -07:00