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Implement SGR dim

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kitty now supports the SGR DIM escape code, which makes text fade into
the background. It works by alpha blending the text color into the
background color. Fixes #446
This commit is contained in:
Kovid Goyal
2018-05-20 10:43:26 +05:30
parent 9cab8a2de5
commit 6f2d63eb87
11 changed files with 54 additions and 32 deletions
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11
kitty/window.py
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@@ -15,9 +15,10 @@ from .constants import (
)
from .fast_data_types import (
BLIT_PROGRAM, CELL_BG_PROGRAM, CELL_FG_PROGRAM, CELL_PROGRAM,
CELL_SPECIAL_PROGRAM, CSI, CURSOR_PROGRAM, DCS, GRAPHICS_PREMULT_PROGRAM,
GRAPHICS_PROGRAM, OSC, SCROLL_FULL, SCROLL_LINE, SCROLL_PAGE, Screen,
add_window, compile_program, get_clipboard_string, glfw_post_empty_event,
CELL_SPECIAL_PROGRAM, CSI, CURSOR_PROGRAM, DCS, DECORATION, DIM,
GRAPHICS_PREMULT_PROGRAM, GRAPHICS_PROGRAM, OSC, REVERSE, SCROLL_FULL,
SCROLL_LINE, SCROLL_PAGE, STRIKETHROUGH, Screen, add_window,
compile_program, get_clipboard_string, glfw_post_empty_event,
init_cell_program, init_cursor_program, set_clipboard_string,
set_titlebar_color, set_window_render_data, update_window_title,
update_window_visibility, viewport_for_window
@@ -64,6 +65,10 @@ def load_shader_programs(semi_transparent=0):
'FOREGROUND': CELL_FG_PROGRAM,
}.items():
vv, ff = v.replace('WHICH_PROGRAM', which), f.replace('WHICH_PROGRAM', which)
shifts = '\n'.join('#define {} {}'.format(name, val) for name, val in (
('DECORATION_SHIFT', DECORATION), ('REVERSE_SHIFT', REVERSE), ('STRIKE_SHIFT', STRIKETHROUGH), ('DIM_SHIFT', DIM),
))
vv = vv.replace('#define SHIFTS', shifts)
if semi_transparent:
vv = vv.replace('#define NOT_TRANSPARENT', '#define TRANSPARENT')
ff = ff.replace('#define NOT_TRANSPARENT', '#define TRANSPARENT')