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Use static overlay wallpaper in ISO build

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This commit is contained in:
Mikhail Chusavitin
2026-04-16 10:54:03 +03:00
parent 18e24a9aa5
commit f74976ec4c
1 changed files with 0 additions and 117 deletions
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iso/builder/config/hooks/normal/9001-wallpaper.hook.chroot
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#!/bin/sh
# 9001-wallpaper.hook.chroot — generate /usr/share/bee/wallpaper.png inside chroot
set -e
echo "=== generating bee wallpaper ==="
mkdir -p /usr/share/bee
python3 - <<'PYEOF'
from PIL import Image, ImageDraw, ImageFont, ImageFilter
import os
W, H = 1920, 1080
ASCII_ART = [
" ███████╗ █████╗ ███████╗██╗ ██╗ ██████╗ ███████╗███████╗",
" ██╔════╝██╔══██╗██╔════╝╚██╗ ██╔╝ ██╔══██╗██╔════╝██╔════╝",
" █████╗ ███████║███████╗ ╚████╔╝ █████╗██████╔╝█████╗ █████╗",
" ██╔══╝ ██╔══██║╚════██║ ╚██╔╝ ╚════╝██╔══██╗██╔══╝ ██╔══╝",
" ███████╗██║ ██║███████║ ██║ ██████╔╝███████╗███████╗",
" ╚══════╝╚═╝ ╚═╝╚══════╝ ╚═╝ ╚═════╝ ╚══════╝╚══════╝",
]
SUBTITLE = " Hardware Audit LiveCD"
FG = (0xF6, 0xD0, 0x47)
FG_DIM = (0xD4, 0xA9, 0x1C)
SHADOW = (0x5E, 0x47, 0x05)
SUB = (0x96, 0x7A, 0x17)
BG = (0x05, 0x05, 0x05)
MONO_FONT_CANDIDATES = [
'/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf',
'/usr/share/fonts/truetype/liberation2/LiberationMono-Bold.ttf',
'/usr/share/fonts/truetype/liberation/LiberationMono-Bold.ttf',
'/usr/share/fonts/truetype/freefont/FreeMonoBold.ttf',
]
SUB_FONT_CANDIDATES = [
'/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf',
'/usr/share/fonts/truetype/liberation2/LiberationSans-Bold.ttf',
'/usr/share/fonts/truetype/liberation/LiberationSans-Bold.ttf',
'/usr/share/fonts/truetype/freefont/FreeSansBold.ttf',
]
def load_font(candidates, size):
for path in candidates:
if os.path.exists(path):
return ImageFont.truetype(path, size)
return ImageFont.load_default()
def mono_metrics(font):
probe = Image.new('L', (W, H), 0)
draw = ImageDraw.Draw(probe)
char_w = int(round(draw.textlength("M", font=font)))
bb = draw.textbbox((0, 0), "Mg", font=font)
char_h = bb[3] - bb[1]
return char_w, char_h
def render_ascii_mask(font, lines, char_w, char_h, line_gap):
width = max(len(line) for line in lines) * char_w
height = len(lines) * char_h + line_gap * (len(lines) - 1)
mask = Image.new('L', (width, height), 0)
draw = ImageDraw.Draw(mask)
for row, line in enumerate(lines):
y = row * (char_h + line_gap)
for col, ch in enumerate(line):
if ch == ' ':
continue
x = col * char_w
draw.text((x, y), ch, font=font, fill=255)
return mask
img = Image.new('RGB', (W, H), BG)
draw = ImageDraw.Draw(img)
# Soft amber glow under the logo without depending on font rendering.
glow = Image.new('RGBA', (W, H), (0, 0, 0, 0))
glow_draw = ImageDraw.Draw(glow)
glow_draw.ellipse((360, 250, 1560, 840), fill=(180, 120, 10, 56))
glow_draw.ellipse((520, 340, 1400, 760), fill=(255, 190, 40, 36))
glow = glow.filter(ImageFilter.GaussianBlur(60))
img = Image.alpha_composite(img.convert('RGBA'), glow)
TARGET_LOGO_W = 400
max_chars = max(len(line) for line in ASCII_ART)
_probe_font = load_font(MONO_FONT_CANDIDATES, 64)
_probe_cw, _ = mono_metrics(_probe_font)
font_size_logo = max(6, int(64 * TARGET_LOGO_W / (_probe_cw * max_chars)))
font_logo = load_font(MONO_FONT_CANDIDATES, font_size_logo)
char_w, char_h = mono_metrics(font_logo)
logo_mask = render_ascii_mask(font_logo, ASCII_ART, char_w, char_h, 2)
logo_w, logo_h = logo_mask.size
logo_x = (W - logo_w) // 2
logo_y = 380
sh_off = max(1, font_size_logo // 6)
shadow_mask = logo_mask.filter(ImageFilter.GaussianBlur(1))
img.paste(SHADOW, (logo_x + sh_off * 2, logo_y + sh_off * 2), shadow_mask)
img.paste(FG_DIM, (logo_x + sh_off, logo_y + sh_off), logo_mask)
img.paste(FG, (logo_x, logo_y), logo_mask)
font_sub = load_font(SUB_FONT_CANDIDATES, 30)
sub_bb = draw.textbbox((0, 0), SUBTITLE, font=font_sub)
sub_x = (W - (sub_bb[2] - sub_bb[0])) // 2
sub_y = logo_y + logo_h + 48
draw = ImageDraw.Draw(img)
draw.text((sub_x + 2, sub_y + 2), SUBTITLE, font=font_sub, fill=(35, 28, 6))
draw.text((sub_x, sub_y), SUBTITLE, font=font_sub, fill=SUB)
img = img.convert('RGB')
img.save('/usr/share/bee/wallpaper.png', optimize=True)
print('wallpaper written: /usr/share/bee/wallpaper.png')
PYEOF
echo "=== wallpaper done ==="