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swappy

A Wayland native snapshot and editor tool, inspired by Snappy on macOS. Works great with grim, slurp and sway. But can easily work with other screen copy tools that can output a final image to stdout. See below.

Screenshot

Example usage

Output of grim (or any tool outputting an image file):

grim -g "$(slurp)" - | swappy -f -

Swappshot a PNG file:

swappy -f "~/Desktop/my-gnome-saved-file.png"

Print final surface to stdout (useful to pipe with other tools):

grim -g "$(slurp)" - | swappy -f - -o - | pngquant -

Grab a swappshot from a specific window under Sway, using swaymsg and jq:

grim -g "$(swaymsg -t get_tree | jq -r '.. | select(.pid? and .visible?) | .rect | "\(.x),\(.y) \(.width)x\(.height)"' | slurp)" - | swappy -f -

Config

The config file is located at $XDG_CONFIG_HOME/swappy/config or at $HOME/.config/swappy/config.

The file follows the GLib conf format. See the man page for details. There is example config file here.

The following lines can be used as swappy's default:

[Default]
save_dir=$HOME/Desktop
save_filename_format=swappy-%Y%m%d-%H%M%S.png
show_panel=false
line_size=5
text_size=20
text_font=sans-serif
paint_mode=brush
early_exit=false
fill_shape=false

save_dir is where swappshots will be saved, can contain env variables, when it does not exist, swappy attempts to create it first, but does not abort if directory creation fails
save_filename_format: is the filename template, if it contains a date format, this will be parsed into a timestamp. Format is detailed in strftime(3). If this date format is missing, filename will have no timestamp
show_panel is used to toggle the paint panel on or off upon startup
line_size is the default line size (must be between 1 and 50)
text_size is the default text size (must be between 10 and 50)
text_font is the font used to render text, its format is pango friendly
paint_mode is the mode activated at application start (must be one of: brush|text|rectangle|ellipse|arrow|blur, matching is case-insensitive)
early_exit is used to make the application exit after saving the picture or copying it to the clipboard
fill_shape is used to toggle shape filling (for the rectangle and ellipsis tools) on or off upon startup

Keyboard Shortcuts

Ctrl+b: Toggle Paint Panel

b: Switch to Brush
t: Switch to Text
r: Switch to Rectangle
o: Switch to Ellipse
a: Switch to Arrow
d: Switch to Blur (d stands for droplet)

R: Use Red Color
G: Use Green Color
B: Use Blue Color
C: Use Custom Color
Minus: Reduce Stroke Size
Plus: Increase Stroke Size
Equal: Reset Stroke Size
f: Toggle Shape Filling
k: Clear Paints (cannot be undone)

Ctrl: Center Shape (Rectangle & Ellipse) based on draw start

Ctrl+z: Undo
Ctrl+Shift+z or Ctrl+y: Redo
Ctrl+s: Save to file (see man page)
Ctrl+c: Copy to clipboard
Escape or q or Ctrl+w: Quit swappy

Limitations

Copy: If you don't have wl-clipboard installed, copy to clipboard won't work if you close swappy (the content of the clipboard is lost). This because GTK 3.24 has not implemented persistent storage on wayland backend yet. We need to do it on the Wayland level, or wait for GTK 4. For now, we use wl-copy if installed and revert to gtk clipboard if not found.
Fonts: Swappy relies on Font Awesome 5 being present to properly render the icons. On Arch you can simply install those with: sudo pacman -S otf-font-awesome

Installation

Building from source

Install dependencies (on Arch, name can vary for other distros):

meson
ninja
cairo
pango
gtk
glib2
scdoc

Optional dependencies:

wl-clipboard (to make sure the copy is saved if you close swappy)
otf-font-awesome (to draw the paint icons properly)

Then run:

meson setup build
ninja -C build

i18n

This section is for developers, maintainers and translators.

To add support to a new locale or when translations are updated:

Update src/po/LINGUAS (when new locales are added)
Generate a new po file (ignore and do not commit potential noise in other files):

ninja -C build swappy-update-po

To rebuild the base template (should happen less often):

ninja -C build swappy-pot

See the meson documentation for details.

Contributing

Pull requests are welcome. This project uses conventional commits to automate changelog generation.

Release

We rely on standard-version which is part of the JavaScript ecosystem but works well with any project.

./script/github-release

Make sure everything is valid in the Draft release, then publish the draft.

Release tarballs are signed with this PGP key: F44D05A50F6C9EB5C81BCF966A6B35DBE9442683

License

MIT

	double threshold = 0.75;
	double scaling = 1.0;

	if (state->geometry->width > workarea.width * threshold) {
	scaling = workarea.width * threshold / state->geometry->width;
	} else if (state->geometry->height > workarea.height * threshold) {
	scaling = workarea.height * threshold / state->geometry->height;
	}

	state->window->width = state->geometry->width * scaling;
	state->window->height = state->geometry->height * scaling;

	g_info("size of monitor at window: %ux%u", workarea.width, workarea.height);
	g_info("size of window to render: %ux%u", state->window->width,
	state->window->height);

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swappy's Introduction

swappy

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Example usage

Config

Keyboard Shortcuts

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Installation

Building from source

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