#!/bin/sh
# Hammerhead Openbox autostart - Zygaena marine-dark identity.
# Idempotent: only launch a daemon if it isn't already running, so
# `openbox --restart` doesn't spawn duplicate panels.
running() { ps -ef | grep -v grep | grep -q "$1"; }
running "[p]icom" || picom --backend xrender -b 2>/dev/null &
# tint2 finds its config live via XDG_CONFIG_DIRS; conky does NOT honor
# XDG_CONFIG_DIRS, so give it the system config path explicitly (stays live).
running "[t]int2" || tint2 &
running "[c]onky" || conky -c @@PREFIX@@/etc/xdg/conky/conky.conf &
feh --bg-fill @@PREFIX@@/share/backgrounds/hammerhead.png 2>/dev/null &
#!/bin/sh
# Build script for hammerhead-desktop (Zygaena marine-dark branding config).
#
# No upstream tarball - all inputs are local files shipped alongside this
# script in the port directory. The only compiled artifact is the cairo
# wallpaper generator, built and run once here (its output PNG is what
# actually ships - the generator binary itself is not installed).
set -e

PORTDIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)

export PKG_CONFIG_PATH="$PREFIX/lib/pkgconfig:$PREFIX/share/pkgconfig:/usr/lib/pkgconfig:$PKG_CONFIG_PATH"

# --- Step 1: build + run the wallpaper generator ---
gcc "$PORTDIR/wallpaper-gen.c" $(pkg-config --cflags --libs cairo) -lm -o "$PORTDIR/wg"

mkdir -p "$PKGDIR$PREFIX/share/backgrounds"
"$PORTDIR/wg" "$PKGDIR$PREFIX/share/backgrounds/hammerhead.png"

# --- Step 2: Openbox theme ---
mkdir -p "$PKGDIR$PREFIX/share/themes/Hammerhead/openbox-3"
cp "$PORTDIR/themerc" "$PKGDIR$PREFIX/share/themes/Hammerhead/openbox-3/themerc"

# --- Step 3: tint2 panel config ---
# Matches the existing tint2 port's own default install location
# ($PREFIX/etc/xdg/tint2 - tint2's cmake build doesn't honor
# --sysconfdir), and what the integration step's XDG_CONFIG_DIRS
# ($PREFIX/etc/xdg) resolves against.
mkdir -p "$PKGDIR$PREFIX/etc/xdg/tint2"
cp "$PORTDIR/tint2rc" "$PKGDIR$PREFIX/etc/xdg/tint2/tint2rc"

# --- Step 4: conky config ---
mkdir -p "$PKGDIR$PREFIX/etc/xdg/conky"
cp "$PORTDIR/conky.conf" "$PKGDIR$PREFIX/etc/xdg/conky/conky.conf"

# --- Step 5: Openbox rc.xml + menu.xml ---
mkdir -p "$PKGDIR$PREFIX/etc/xdg/openbox"
cp "$PORTDIR/rc.xml" "$PKGDIR$PREFIX/etc/xdg/openbox/rc.xml"
cp "$PORTDIR/menu.xml" "$PKGDIR$PREFIX/etc/xdg/openbox/menu.xml"

# --- Step 6: autostart (substitute the real $PREFIX) ---
sed "s#@@PREFIX@@#$PREFIX#g" "$PORTDIR/autostart" \
    > "$PKGDIR$PREFIX/etc/xdg/openbox/autostart"
chmod 755 "$PKGDIR$PREFIX/etc/xdg/openbox/autostart"

# --- Step 7: screenshot tool (hh-grab XGetImage->PNG + hh-screenshot wrapper) ---
# Bound to Print in rc.xml; saves to ~/Pictures/hh-<timestamp>.png.
mkdir -p "$PKGDIR$PREFIX/bin"
gcc "$PORTDIR/hh-grab.c" -I"$PREFIX/include" -L"$PREFIX/lib" -R"$PREFIX/lib" -lX11 -lpng \
    -o "$PKGDIR$PREFIX/bin/hh-grab"
install -m 755 "$PORTDIR/hh-screenshot" "$PKGDIR$PREFIX/bin/hh-screenshot"

# --- Step 8: PDF/image launcher wrappers + branded welcome PDF ---
gcc "$PORTDIR/pdf-gen.c" $(pkg-config --cflags --libs cairo) -o "$PORTDIR/pdfgen"
mkdir -p "$PKGDIR$PREFIX/share/hammerhead"
"$PORTDIR/pdfgen" "$PKGDIR$PREFIX/share/hammerhead/welcome.pdf"
rm -f "$PORTDIR/pdfgen"
install -m 755 "$PORTDIR/hh-pdf" "$PKGDIR$PREFIX/bin/hh-pdf"
install -m 755 "$PORTDIR/hh-images" "$PKGDIR$PREFIX/bin/hh-images"

# --- Step 9: Openbox pipemenus (Places, Recent Files) ---
# GTK-free, POSIX-sh, pattern adapted from CrunchBang++'s
# cbpp-places-pipemenu / cbpp-recent-files-pipemenu; referenced from
# menu.xml via execute="hh-places-pipemenu" / "hh-recent-pipemenu".
install -m 755 "$PORTDIR/hh-places-pipemenu" "$PKGDIR$PREFIX/bin/hh-places-pipemenu"
install -m 755 "$PORTDIR/hh-recent-pipemenu" "$PKGDIR$PREFIX/bin/hh-recent-pipemenu"

# --- Step 10: branded tint2 launcher icons + .desktop entries ---
# The stock launcher was illegible: st ships no icon, xnedit's png was loose,
# and hicolor had no index.theme so name-lookup failed. We ship our own cairo
# glyphs and point each .desktop Icon= at an ABSOLUTE path, which tint2 loads
# directly (no icon theme required). tint2rc references these three by path.
gcc "$PORTDIR/icon-gen.c" $(pkg-config --cflags --libs cairo) -lm -o "$PORTDIR/ig"
mkdir -p "$PKGDIR$PREFIX/share/hammerhead-desktop/launcher"
"$PORTDIR/ig" "$PKGDIR$PREFIX/share/hammerhead-desktop/launcher"
rm -f "$PKGDIR$PREFIX/share/hammerhead-desktop/launcher/preview.png"  # review-only
rm -f "$PORTDIR/ig"
mkdir -p "$PKGDIR$PREFIX/share/applications"
cp "$PORTDIR/hh-terminal.desktop" "$PORTDIR/hh-files.desktop" \
   "$PORTDIR/hh-editor.desktop" "$PKGDIR$PREFIX/share/applications/"

# Clean up the transient build helper - not shipped.
rm -f "$PORTDIR/wg"

# --- Step 11: /etc/skel/.xsession (Task 4b) ---
# New users' home dirs are seeded from /etc/skel, so this makes a fresh
# account's X session default to the Openbox desktop without any manual
# ~/.xsession setup.
mkdir -p "$PKGDIR/etc/skel"
install -m 755 "$PORTDIR/dot-xsession" "$PKGDIR/etc/skel/.xsession"

# --- Step 12: hh-desktop-init (per-user ~/.config seed, CBPP-style) ---
# openbox-autostart only reads ~/.config or /etc/xdg (not our /usr/local/etc/xdg),
# so the X session entrypoints call this to seed ~/.config on login for new AND
# existing users (copy-if-missing).
install -m 755 "$PORTDIR/hh-desktop-init" "$PKGDIR$PREFIX/bin/hh-desktop-init"
-- Hammerhead conky config - Zygaena marine-dark identity
-- Installed to $PREFIX/etc/xdg/conky/conky.conf
-- Uses conky's native illumos/kstat stat backend (no ${exec} shellouts
-- needed for cpu/mem/fs/net - see task brief).
--
-- Typography/layout adapted from CrunchBang++'s signature right-side
-- conky (github.com/CBPP/cbpp-configs, simon-weber/crunchbang-conf):
-- monospace, right-aligned, uppercase section labels over hairline
-- rules, compact bars. Restyled teal-on-dark instead of CBPP's grey/red,
-- and kept our native kstat vars (no CBPP-style ${exec} shellouts).

conky.config = {
    own_window = true,
    own_window_type = 'desktop',
    own_window_transparent = true,
    own_window_argb_visual = true,
    own_window_argb_value = 200,
    own_window_hints = 'undecorated,below,sticky,skip_taskbar,skip_pager',

    alignment = 'top_right',
    gap_x = 24,
    gap_y = 40,
    minimum_width = 260,
    maximum_width = 300,

    update_interval = 2.0,
    double_buffer = true,
    use_xft = true,
    font = 'monospace:size=9',

    default_color = 'cfe0e0',
    color1 = '1fb6b6',   -- headings / accents
    color2 = '5a7575',   -- muted / rules

    draw_shades = false,
    draw_outline = false,
    draw_borders = false,

    background = false,
}

conky.text = [[
${alignr}${color1}${font monospace:bold:size=14}HAMMERHEAD${font}${color}
${alignr}${color2}${nodename}${color}
${alignr}${color2}${hr 1}${color}

${alignr}${color1}SYSTEM${color}
${alignr}uptime  ${color1}${uptime}${color}
${alignr}load    ${color1}${loadavg}${color}

${alignr}${color1}CPU${color}
${alignr}${cpu}%${color}
${alignr}${cpubar 6,220}

${alignr}${color1}MEMORY${color}
${alignr}${mem} / ${memmax}${color}
${alignr}${membar 6,220}

${alignr}${color1}DISK (/)${color}
${alignr}${fs_used /} / ${fs_size /}${color}
${alignr}${fs_bar 6,220 /}

${alignr}${color1}NETWORK${color}
${alignr}down ${color1}${downspeed}${color} / up ${color1}${upspeed}${color}
]]
#!/bin/sh
# Hammerhead default X session - launch the Openbox desktop.
#
# Put the Hammerhead desktop config (/usr/local/etc/xdg) on the XDG search
# path so openbox/tint2/conky find the branded config without ~/.config.
# (xdm's Xsession also sets this; repeated here so `startx`/xinit users, who
# run ~/.xsession directly, get the branded desktop too.)
export XDG_CONFIG_DIRS="/usr/local/etc/xdg:${XDG_CONFIG_DIRS:-/etc/xdg}"
export XDG_DATA_DIRS="/usr/local/share:${XDG_DATA_DIRS:-/usr/share}"
# Seed ~/.config so openbox-autostart (which only reads ~/.config or /etc/xdg)
# runs our autostart -> tint2/conky/wallpaper. See hh-desktop-init.
/usr/local/bin/hh-desktop-init
exec /usr/local/bin/openbox-session
#!/bin/sh
# hh-desktop-init - point the user's openbox autostart at the LIVE system
# autostart so desktop-config updates ALWAYS take, with no per-user copies to
# go stale. Called from the X session entrypoint before openbox-session.
#
# Why only the autostart: openbox-autostart (run by openbox-session) reads only
# /etc/xdg/openbox/autostart or ~/.config/openbox/autostart -- NOT
# XDG_CONFIG_DIRS -- so the autostart is the single desktop file that must live
# under ~/.config. Everything else resolves live from /usr/local/etc/xdg via
# XDG_CONFIG_DIRS (set by the X session): openbox rc.xml/menu.xml and tint2rc;
# conky is launched by the autostart with an explicit -c path. So none of those
# need a per-user copy.
#
# We make ~/.config/openbox/autostart a SYMLINK to the system autostart (not a
# copy), so a package update to the autostart is picked up with no re-seed.
# A pre-existing non-symlink here is treated as legacy seeded state and migrated
# to the symlink.
SYS=/usr/local/etc/xdg/openbox/autostart
CFG="${XDG_CONFIG_HOME:-$HOME/.config}/openbox"

mkdir -p "$CFG" 2>/dev/null || exit 0
if [ "$(readlink "$CFG/autostart" 2>/dev/null)" != "$SYS" ]; then
	rm -f "$CFG/autostart" 2>/dev/null
	ln -sf "$SYS" "$CFG/autostart" 2>/dev/null
fi
exit 0
[Desktop Entry]
Type=Application
Name=Editor
Comment=XNEdit text editor
Exec=/usr/local/bin/xnc -tabbed %F
Icon=/usr/local/share/hammerhead-desktop/launcher/editor.png
Categories=Utility;TextEditor;
Terminal=false
[Desktop Entry]
Type=Application
Name=Files
Comment=Xfe file manager
Exec=xfe
Icon=/usr/local/share/hammerhead-desktop/launcher/files.png
Categories=System;FileManager;
Terminal=false
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <png.h>
#include <stdio.h>
#include <stdlib.h>
int main(int c,char**v){Display*d=XOpenDisplay(NULL);if(!d){fprintf(stderr,"no display\n");return 1;}
Window r=DefaultRootWindow(d);XWindowAttributes g;XGetWindowAttributes(d,r,&g);
XImage*im=XGetImage(d,r,0,0,g.width,g.height,AllPlanes,ZPixmap);if(!im)return 1;
FILE*f=fopen(c>1?v[1]:"screenshot.png","wb");png_structp p=png_create_write_struct(PNG_LIBPNG_VER_STRING,0,0,0);
png_infop i=png_create_info_struct(p);png_init_io(p,f);png_set_IHDR(p,i,g.width,g.height,8,PNG_COLOR_TYPE_RGB,0,0,0);
png_write_info(p,i);png_bytep row=malloc(3*g.width);for(int y=0;y<g.height;y++){for(int x=0;x<g.width;x++){
unsigned long px=XGetPixel(im,x,y);row[3*x]=(px>>16)&0xFF;row[3*x+1]=(px>>8)&0xFF;row[3*x+2]=px&0xFF;}png_write_row(p,row);}
png_write_end(p,i);fclose(f);return 0;}
#!/bin/sh
mkdir -p "$HOME/Pictures"
exec /usr/local/bin/feh --auto-zoom --scale-down --geometry 1000x720 "$HOME/Pictures" /usr/local/share/backgrounds
#!/bin/sh
[ -n "$1" ] && exec /usr/local/bin/mupdf-x11 "$@"
exec /usr/local/bin/mupdf-x11 /usr/local/share/hammerhead/welcome.pdf
#!/bin/sh
# hh-places-pipemenu - Openbox "Places" pipe menu (GTK-free)
#
# Pattern adapted from CrunchBang++'s cbpp-places-pipemenu
# (github.com/CBPP/cbpp-pipemenus, Copyright (C) 2010 John Crawley,
# ported to #!++ by Ben Young) - same idea (walk a directory, XML-escape
# names, emit an <openbox_pipe_menu>) but rewritten small/flat for our
# stack: no thunar/exo-open/geany, no recursive submenus. Every entry
# opens in xfe; a matching terminal entry opens st in that directory.
#
# Usage: <menu id="places-menu" label="Places" execute="hh-places-pipemenu"/>
# in menu.xml. Invoked with no arguments; always lists $HOME's immediate
# subdirectories (dotdirs skipped).
#
# NB: the shell, not bash - keep this POSIX sh / dash-fast per upstream.

files="xfe"

xml_escape() {
    # $1 -> escaped on stdout
    printf '%s' "$1" | sed \
        -e 's/&/\&amp;/g' \
        -e 's/</\&lt;/g' \
        -e 's/>/\&gt;/g' \
        -e 's/"/\&quot;/g'
}

home="${HOME:-/root}"

printf '<openbox_pipe_menu>\n'

printf '  <item label="~ Home">\n'
printf '    <action name="Execute"><command>%s %s</command></action>\n' "$files" "$(xml_escape "$home")"
printf '  </item>\n'
printf '  <item label="Terminal Here">\n'
printf '    <action name="Execute"><command>st -d %s</command></action>\n' "$(xml_escape "$home")"
printf '  </item>\n'
printf '  <separator/>\n'

# Immediate subdirectories of $HOME, skipping dotdirs, alphabetical.
for d in "$home"/*/; do
    [ -d "$d" ] || continue
    d="${d%/}"
    base="${d##*/}"
    case "$base" in
        .*) continue ;;
    esac
    label="$(xml_escape "$base")"
    path="$(xml_escape "$d")"
    printf '  <item label="%s">\n' "$label"
    printf '    <action name="Execute"><command>%s %s</command></action>\n' "$files" "$path"
    printf '  </item>\n'
    printf '  <item label="Terminal: %s">\n' "$label"
    printf '    <action name="Execute"><command>st -d %s</command></action>\n' "$path"
    printf '  </item>\n'
done

printf '</openbox_pipe_menu>\n'
#!/bin/sh
# hh-recent-pipemenu - Openbox "Recent Files" pipe menu (GTK-free)
#
# Loosely modeled on CrunchBang++'s cbpp-recent-files-pipemenu
# (github.com/CBPP/cbpp-pipemenus), but that one parses GTK's
# ~/.local/share/recently-used.xbel, which nothing on Hammerhead writes
# (no GTK). Instead: find(1) over $HOME for recently-modified
# docs/images, opened with the matching viewer.
#
# Usage: <menu id="recent-menu" label="Recent Files" execute="hh-recent-pipemenu"/>

max_entries=12
home="${HOME:-/root}"

xml_escape() {
    printf '%s' "$1" | sed \
        -e 's/&/\&amp;/g' \
        -e 's/</\&lt;/g' \
        -e 's/>/\&gt;/g' \
        -e 's/"/\&quot;/g'
}

viewer_for() {
    case "$1" in
        *.pdf) echo "hh-pdf" ;;
        *.png|*.jpg|*.jpeg|*.gif|*.bmp) echo "hh-images" ;;
        *) echo "xnedit" ;;
    esac
}

printf '<openbox_pipe_menu>\n'

count=0
find "$home" -maxdepth 3 -type f \
    \( -iname '*.pdf' -o -iname '*.txt' -o -iname '*.png' -o -iname '*.jpg' -o -iname '*.jpeg' \) \
    -mtime -14 -print 2>/dev/null | while IFS= read -r f; do
    viewer="$(viewer_for "$f")"
    label="$(xml_escape "${f##*/}")"
    path="$(xml_escape "$f")"
    printf '  <item label="%s">\n' "$label"
    printf '    <action name="Execute"><command>%s %s</command></action>\n' "$viewer" "$path"
    printf '  </item>\n'
    count=$((count + 1))
    [ "$count" -ge "$max_entries" ] && break
done

printf '</openbox_pipe_menu>\n'
#!/bin/sh
mkdir -p "$HOME/Pictures"
exec /usr/local/bin/hh-grab "$HOME/Pictures/hh-$(date +%Y%m%d-%H%M%S).png"
[Desktop Entry]
Type=Application
Name=Terminal
Comment=st terminal emulator
Exec=st
Icon=/usr/local/share/hammerhead-desktop/launcher/terminal.png
Categories=System;TerminalEmulator;
Terminal=false
/*
 * icon-gen.c - Zygaena marine-dark launcher icon generator.
 *
 * Renders three 48x48 ARGB launcher glyphs - terminal, files, editor - in
 * the Hammerhead teal palette (matching wallpaper-gen.c). tint2 loads these
 * by ABSOLUTE path (Icon=/usr/local/share/hammerhead-desktop/launcher/*.png),
 * so no freedesktop icon theme / hicolor index.theme is required - which is
 * exactly why the stock launcher was illegible (st shipped no icon, xnedit's
 * png was loose, hicolor had no index.theme).
 *
 * Build: gcc icon-gen.c $(pkg-config --cflags --libs cairo) -lm -o ig
 * Usage: ./ig /output/dir   (writes terminal.png, files.png, editor.png,
 *                            and preview.png for design review)
 */
#include <cairo.h>
#include <math.h>
#include <stdio.h>

#define S 48   /* icon canvas size */

/* palette - matches wallpaper-gen.c */
#define TILE_R   0x12/255.0
#define TILE_G   0x2e/255.0
#define TILE_B   0x34/255.0
#define TEAL_R   0x1f/255.0
#define TEAL_G   0xb6/255.0
#define TEAL_B   0xb6/255.0
#define TEALBR_R 0x54/255.0
#define TEALBR_G 0xe0/255.0
#define TEALBR_B 0xe0/255.0
#define TEXT_R   0xcf/255.0
#define TEXT_G   0xe0/255.0
#define TEXT_B   0xe0/255.0

static void
rrect(cairo_t *cr, double x, double y, double w, double h, double r)
{
    cairo_new_sub_path(cr);
    cairo_arc(cr, x + w - r, y + r,     r, -M_PI / 2, 0);
    cairo_arc(cr, x + w - r, y + h - r, r, 0, M_PI / 2);
    cairo_arc(cr, x + r,     y + h - r, r, M_PI / 2, M_PI);
    cairo_arc(cr, x + r,     y + r,     r, M_PI, 3 * M_PI / 2);
    cairo_close_path(cr);
}

/* subtle elevated chip so the three icons read as one branded set */
static void
tile(cairo_t *cr)
{
    rrect(cr, 2.5, 2.5, S - 5, S - 5, 10);
    cairo_set_source_rgb(cr, TILE_R, TILE_G, TILE_B);
    cairo_fill_preserve(cr);
    cairo_set_source_rgba(cr, TEAL_R, TEAL_G, TEAL_B, 0.40);
    cairo_set_line_width(cr, 1.5);
    cairo_stroke(cr);
}

/* Terminal: a prompt chevron ">" plus a cursor underscore "_". */
static void
draw_terminal(cairo_t *cr)
{
    tile(cr);
    cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
    cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);

    cairo_set_source_rgb(cr, TEALBR_R, TEALBR_G, TEALBR_B);
    cairo_set_line_width(cr, 4.4);
    cairo_move_to(cr, 15, 16);
    cairo_line_to(cr, 25, 24);
    cairo_line_to(cr, 15, 32);
    cairo_stroke(cr);

    cairo_set_source_rgb(cr, TEXT_R, TEXT_G, TEXT_B);
    cairo_set_line_width(cr, 4.0);
    cairo_move_to(cr, 27, 33);
    cairo_line_to(cr, 34, 33);
    cairo_stroke(cr);
}

/* Files: a two-tone manila folder (tab + body). */
static void
draw_files(cairo_t *cr)
{
    tile(cr);
    cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);

    /* tab peeking above the body's top-left */
    cairo_set_source_rgb(cr, TEAL_R, TEAL_G, TEAL_B);
    rrect(cr, 11, 14, 14, 8, 2.5);
    cairo_fill(cr);

    /* back body */
    rrect(cr, 11, 18, 26, 17, 3);
    cairo_fill(cr);

    /* front pocket, lighter, slightly inset - gives the folder depth */
    cairo_set_source_rgb(cr, TEALBR_R, TEALBR_G, TEALBR_B);
    rrect(cr, 13, 23, 22, 12, 2.5);
    cairo_fill(cr);
}

/* Editor: a pencil at 45 degrees (eraser, shaft, nib, tip). */
static void
draw_editor(cairo_t *cr)
{
    tile(cr);
    cairo_save(cr);
    cairo_translate(cr, 24, 24);
    cairo_rotate(cr, -M_PI / 4);

    double pw = 8, half = pw / 2;

    /* shaft */
    cairo_set_source_rgb(cr, TEAL_R, TEAL_G, TEAL_B);
    rrect(cr, -half, -13, pw, 19, 1.5);
    cairo_fill(cr);

    /* eraser (top) */
    cairo_set_source_rgb(cr, TEXT_R, TEXT_G, TEXT_B);
    rrect(cr, -half, -16.5, pw, 4, 1.2);
    cairo_fill(cr);

    /* nib (bottom), brighter teal */
    cairo_set_source_rgb(cr, TEALBR_R, TEALBR_G, TEALBR_B);
    cairo_move_to(cr, -half, 6);
    cairo_line_to(cr,  half, 6);
    cairo_line_to(cr,  0,   14);
    cairo_close_path(cr);
    cairo_fill(cr);

    /* graphite tip */
    cairo_set_source_rgb(cr, TILE_R, TILE_G, TILE_B);
    cairo_move_to(cr, -2.2, 10.5);
    cairo_line_to(cr,  2.2, 10.5);
    cairo_line_to(cr,  0,   14);
    cairo_close_path(cr);
    cairo_fill(cr);

    cairo_restore(cr);
}

typedef void (*drawfn)(cairo_t *);

static void
emit(const char *dir, const char *name, drawfn fn)
{
    char path[1024];
    cairo_surface_t *s = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, S, S);
    cairo_t *cr = cairo_create(s);
    fn(cr);
    snprintf(path, sizeof path, "%s/%s", dir, name);
    cairo_surface_write_to_png(s, path);
    printf("wrote %s\n", path);
    cairo_destroy(cr);
    cairo_surface_destroy(s);
}

/* Review sheet: each glyph at 3x (detail) over the same glyph at 22px
 * (real launcher size) on a panel-tone strip, so legibility is judged at
 * the size it will actually render. */
static void
emit_preview(const char *dir)
{
    drawfn fns[3] = { draw_terminal, draw_files, draw_editor };
    int cw = 160, W = cw * 3, H = 210;
    char path[1024];

    cairo_surface_t *s = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, W, H);
    cairo_t *cr = cairo_create(s);

    cairo_set_source_rgb(cr, 0x0d / 255.0, 0x11 / 255.0, 0x17 / 255.0);
    cairo_paint(cr);

    for (int i = 0; i < 3; i++) {
        cairo_save(cr);
        cairo_translate(cr, i * cw + (cw - 144) / 2.0, 8);
        cairo_scale(cr, 144.0 / S, 144.0 / S);
        fns[i](cr);
        cairo_restore(cr);
    }

    /* panel strip */
    cairo_set_source_rgb(cr, 0x0e / 255.0, 0x1c / 255.0, 0x1f / 255.0);
    cairo_rectangle(cr, 0, 168, W, 42);
    cairo_fill(cr);
    for (int i = 0; i < 3; i++) {
        cairo_save(cr);
        cairo_translate(cr, i * cw + (cw - 22) / 2.0, 178);
        cairo_scale(cr, 22.0 / S, 22.0 / S);
        fns[i](cr);
        cairo_restore(cr);
    }

    snprintf(path, sizeof path, "%s/preview.png", dir);
    cairo_surface_write_to_png(s, path);
    printf("wrote %s\n", path);
    cairo_destroy(cr);
    cairo_surface_destroy(s);
}

int
main(int argc, char **argv)
{
    const char *dir = (argc > 1) ? argv[1] : ".";
    emit(dir, "terminal.png", draw_terminal);
    emit(dir, "files.png",    draw_files);
    emit(dir, "editor.png",   draw_editor);
    emit_preview(dir);
    return 0;
}
<?xml version="1.0" encoding="UTF-8"?>
<!-- Hammerhead Openbox root menu - Zygaena marine-dark identity
     Installed to $PREFIX/etc/xdg/openbox/menu.xml

     Structure adapted from CrunchBang++'s categorized root menu
     (github.com/CBPP/cbpp-configs, simon-weber/crunchbang-conf) -
     Applications/Places submenus, quick launchers, an Openbox submenu,
     plain Exit (no GTK exit dialog). Rebuilt GTK-free for our real
     apps: st, xfe, xnedit, nvim (in st), hh-pdf, hh-images, dmenu_run. -->
<openbox_menu xmlns="http://openbox.org/3.4/menu">

  <menu id="root-menu" label="Hammerhead">

    <menu id="apps-menu" label="Applications">
      <menu id="apps-accessories-menu" label="Accessories">
        <item label="Text Editor (XNEdit)">
          <action name="Execute"><command>xnedit</command></action>
        </item>
        <item label="Vim (terminal)">
          <action name="Execute"><command>st -e nvim</command></action>
        </item>
        <item label="Files (Xfe)">
          <action name="Execute"><command>xfe</command></action>
        </item>
        <item label="Image Viewer">
          <action name="Execute"><command>hh-images</command></action>
        </item>
        <item label="PDF Viewer">
          <action name="Execute"><command>hh-pdf</command></action>
        </item>
      </menu>
      <menu id="apps-system-menu" label="System">
        <item label="Terminal">
          <action name="Execute"><command>st</command></action>
        </item>
      </menu>
    </menu>

    <menu id="places-menu" label="Places" execute="hh-places-pipemenu"/>

    <menu id="recent-menu" label="Recent Files" execute="hh-recent-pipemenu"/>

    <separator/>

    <item label="Terminal">
      <action name="Execute"><command>st</command></action>
    </item>
    <item label="Files">
      <action name="Execute"><command>xfe</command></action>
    </item>
    <item label="Run...">
      <action name="Execute"><command>dmenu_run</command></action>
    </item>

    <separator/>

    <menu id="openbox-menu" label="Openbox">
      <item label="Reconfigure">
        <action name="Reconfigure"/>
      </item>
      <item label="Restart">
        <action name="Restart"/>
      </item>
    </menu>

    <separator/>

    <!-- Power management. zygctl talks to the root-owned zyginit socket, so
         it needs root privilege; the desktop runs as zygaena (uid 1000).
         pfexec elevates via the "Hammerhead Power Management" RBAC profile
         (base config: rootfs/etc/security/{prof,exec}_attr.d/hammerhead +
         rootfs/etc/user_attr.d/hammerhead). Each has an Openbox confirm
         <prompt> so a stray click can't power off the machine. -->
    <item label="Reboot">
      <action name="Execute">
        <command>pfexec /sbin/zygctl reboot</command>
        <prompt>Reboot the system?</prompt>
      </action>
    </item>
    <item label="Shutdown">
      <action name="Execute">
        <command>pfexec /sbin/zygctl poweroff</command>
        <prompt>Shut down the system?</prompt>
      </action>
    </item>

    <item label="Log Out / Exit">
      <action name="Exit">
        <prompt>yes</prompt>
      </action>
    </item>
  </menu>

</openbox_menu>
# hammerhead-desktop - Zygaena marine-dark desktop branding/config
# (wallpaper, Openbox theme, tint2/conky configs, menu/keybinds, autostart)
#
# No upstream source - this port carries its own config files + a small
# cairo program (wallpaper-gen.c) that renders the branded wallpaper PNG
# at package-build time. See build.sh.

[package]
name = "hammerhead-desktop"
version = "1.7.0"
release = 1
description = "Zygaena marine-dark desktop branding: wallpaper, Openbox theme, tint2/conky configs, categorized menu w/ CBPP-style Places/Recent pipemenus + Shutdown/Reboot (pfexec zygctl), autostart"
url = "https://git.sharkos.one/zygaena/hammerhead"
license = "CDDL-1.0"
maintainer = "Chris Tusa <chris.tusa@leafscale.com>"
arch = "x86_64"

[dependencies]
runtime = ["openbox", "tint2", "conky", "picom", "feh", "dmenu", "st", "xfe", "mupdf", "xnedit", "cairo", "libpng"]
build = ["cairo", "libpng"]

[build]
parallel = false
#include <cairo.h>
#include <cairo-pdf.h>
int main(int c,char**v){
 cairo_surface_t*s=cairo_pdf_surface_create(c>1?v[1]:"welcome.pdf",612,792);
 cairo_t*cr=cairo_create(s);
 cairo_set_source_rgb(cr,0.02,0.035,0.06); cairo_paint(cr);
 cairo_set_source_rgb(cr,0.12,0.71,0.71); cairo_rectangle(cr,0,0,612,8); cairo_fill(cr);
 cairo_select_font_face(cr,"sans",CAIRO_FONT_SLANT_NORMAL,CAIRO_FONT_WEIGHT_BOLD);
 cairo_set_font_size(cr,40); cairo_set_source_rgb(cr,0.12,0.71,0.71);
 cairo_move_to(cr,60,120); cairo_show_text(cr,"HAMMERHEAD");
 cairo_select_font_face(cr,"sans",CAIRO_FONT_SLANT_NORMAL,CAIRO_FONT_WEIGHT_NORMAL);
 cairo_set_font_size(cr,15); cairo_set_source_rgb(cr,0.55,0.68,0.68);
 cairo_move_to(cr,62,148); cairo_show_text(cr,"Zygaena Operating System");
 const char*L[]={"Welcome to your Hammerhead desktop.","",
  "This document is displayed by mupdf, built from source for",
  "Hammerhead - a 64-bit illumos-derived OS with a modern GNU",
  "toolchain running an XLibre + Openbox desktop, all GTK-free.","",
  "Keys:  Super+Return terminal   Super+f files   Super+e editor",
  "       Super+Space launcher    Right-click the desktop for the menu.",0};
 cairo_set_font_size(cr,14); double y=210;
 for(int i=0;L[i];i++){cairo_set_source_rgb(cr,0.82,0.9,0.9);cairo_move_to(cr,60,y);cairo_show_text(cr,L[i]);y+=26;}
 cairo_show_page(cr); cairo_destroy(cr); cairo_surface_destroy(s); return 0;}
<?xml version="1.0" encoding="UTF-8"?>
<!-- Hammerhead Openbox config - Zygaena marine-dark identity
     Installed to $PREFIX/etc/xdg/openbox/rc.xml -->
<openbox_config xmlns="http://openbox.org/3.4/rc">

  <resistance>
    <strength>10</strength>
    <screen_edge_strength>20</screen_edge_strength>
  </resistance>

  <focus>
    <focusNew>yes</focusNew>
    <followMouse>no</followMouse>
    <focusLast>yes</focusLast>
  </focus>

  <placement>
    <policy>Smart</policy>
    <center>yes</center>
  </placement>

  <theme>
    <name>Hammerhead</name>
    <titleLayout>NLIMC</titleLayout>
    <keepBorder>yes</keepBorder>
    <animateIconify>no</animateIconify>
    <font place="ActiveWindow">
      <name>sans</name>
      <size>9</size>
      <weight>Bold</weight>
      <slant>Normal</slant>
    </font>
    <font place="InactiveWindow">
      <name>sans</name>
      <size>9</size>
      <weight>Normal</weight>
      <slant>Normal</slant>
    </font>
  </theme>

  <desktops>
    <number>4</number>
    <firstdesk>1</firstdesk>
    <names>
      <name>1</name>
      <name>2</name>
      <name>3</name>
      <name>4</name>
    </names>
    <popupTime>500</popupTime>
  </desktops>

  <keyboard>
    <!-- Application launchers (Super) -->
    <keybind key="W-Return"><action name="Execute"><command>st</command></action></keybind>
    <keybind key="W-t"><action name="Execute"><command>st</command></action></keybind>
    <keybind key="W-f"><action name="Execute"><command>xfe</command></action></keybind>
    <keybind key="W-e"><action name="Execute"><command>xnedit</command></action></keybind>
    <keybind key="W-space"><action name="Execute"><command>dmenu_run</command></action></keybind>
    <keybind key="A-F2"><action name="Execute"><command>dmenu_run</command></action></keybind>
    <keybind key="A-F3"><action name="Execute"><command>dmenu_run</command></action></keybind>
    <!-- Menus -->
    <keybind key="W-m"><action name="ShowMenu"><menu>root-menu</menu></action></keybind>
    <keybind key="C-A-q"><action name="ShowMenu"><menu>root-menu</menu></action></keybind>
    <keybind key="W-Tab"><action name="ShowMenu"><menu>client-list-combined-menu</menu></action></keybind>
    <!-- Screenshot -->
    <keybind key="Print"><action name="Execute"><command>hh-screenshot</command></action></keybind>
    <!-- Window management -->
    <keybind key="A-F4"><action name="Close"/></keybind>
    <keybind key="W-q"><action name="Close"/></keybind>
    <keybind key="A-space"><action name="ShowMenu"><menu>client-menu</menu></action></keybind>
    <keybind key="A-Tab"><action name="NextWindow"/></keybind>
    <keybind key="A-S-Tab"><action name="PreviousWindow"/></keybind>
    <keybind key="W-A-f"><action name="ToggleMaximizeFull"/></keybind>
    <!-- Half-screen tiling -->
    <keybind key="W-Left"><action name="UnmaximizeFull"/><action name="MoveResizeTo"><x>0</x><y>0</y><width>50%</width><height>100%</height></action></keybind>
    <keybind key="W-Right"><action name="UnmaximizeFull"/><action name="MoveResizeTo"><x>-0</x><y>0</y><width>50%</width><height>100%</height></action></keybind>
    <keybind key="W-Up"><action name="ToggleMaximizeFull"/></keybind>
    <keybind key="W-Down"><action name="Iconify"/></keybind>
    <!-- Desktops -->
    <keybind key="C-A-Left"><action name="GoToDesktop"><to>left</to><wrap>no</wrap></action></keybind>
    <keybind key="C-A-Right"><action name="GoToDesktop"><to>right</to><wrap>no</wrap></action></keybind>
    <keybind key="W-F1"><action name="GoToDesktop"><to>1</to></action></keybind>
    <keybind key="W-F2"><action name="GoToDesktop"><to>2</to></action></keybind>
    <keybind key="W-d"><action name="ToggleShowDesktop"/></keybind>
    <keybind key="S-A-Left"><action name="SendToDesktop"><to>left</to><wrap>no</wrap></action></keybind>
    <keybind key="S-A-Right"><action name="SendToDesktop"><to>right</to><wrap>no</wrap></action></keybind>
  </keyboard>

  <mouse>
    <dragThreshold>1</dragThreshold>
    <doubleClickTime>300</doubleClickTime>
    <context name="Frame">
      <mousebind button="A-Left" action="Press"><action name="Focus"/><action name="Raise"/></mousebind>
      <mousebind button="A-Left" action="Drag"><action name="Move"/></mousebind>
      <mousebind button="A-Right" action="Press"><action name="Focus"/><action name="Raise"/></mousebind>
      <mousebind button="A-Right" action="Drag"><action name="Resize"/></mousebind>
      <mousebind button="A-Middle" action="Press"><action name="Lower"/><action name="FocusToBottom"/><action name="Unfocus"/></mousebind>
    </context>
    <context name="Titlebar">
      <mousebind button="Left" action="Press"><action name="Focus"/><action name="Raise"/></mousebind>
      <mousebind button="Left" action="Drag"><action name="Move"/></mousebind>
      <mousebind button="Left" action="DoubleClick"><action name="ToggleShade"/></mousebind>
      <mousebind button="Up" action="Click"><action name="Shade"/></mousebind>
      <mousebind button="Down" action="Click"><action name="Unshade"/></mousebind>
      <mousebind button="Middle" action="Press"><action name="Lower"/><action name="FocusToBottom"/><action name="Unfocus"/></mousebind>
      <mousebind button="Right" action="Press"><action name="Focus"/><action name="Raise"/><action name="ShowMenu"><menu>client-menu</menu></action></mousebind>
    </context>
    <context name="Top"><mousebind button="Left" action="Drag"><action name="Resize"><edge>top</edge></action></mousebind></context>
    <context name="Bottom"><mousebind button="Left" action="Drag"><action name="Resize"><edge>bottom</edge></action></mousebind></context>
    <context name="Left"><mousebind button="Left" action="Drag"><action name="Resize"><edge>left</edge></action></mousebind></context>
    <context name="Right"><mousebind button="Left" action="Drag"><action name="Resize"><edge>right</edge></action></mousebind></context>
    <context name="TLCorner TRCorner BLCorner BRCorner"><mousebind button="Left" action="Drag"><action name="Resize"/></mousebind></context>
    <context name="Client">
      <mousebind button="Left" action="Press"><action name="Focus"/><action name="Raise"/></mousebind>
      <mousebind button="Middle" action="Press"><action name="Focus"/><action name="Raise"/></mousebind>
      <mousebind button="Right" action="Press"><action name="Focus"/><action name="Raise"/></mousebind>
    </context>
    <context name="Icon">
      <mousebind button="Left" action="Press"><action name="Focus"/><action name="Raise"/><action name="ShowMenu"><menu>client-menu</menu></action></mousebind>
      <mousebind button="Right" action="Press"><action name="Focus"/><action name="Raise"/><action name="ShowMenu"><menu>client-menu</menu></action></mousebind>
    </context>
    <context name="Iconify"><mousebind button="Left" action="Click"><action name="Iconify"/></mousebind></context>
    <context name="Maximize">
      <mousebind button="Left" action="Click"><action name="ToggleMaximize"/></mousebind>
      <mousebind button="Middle" action="Click"><action name="ToggleMaximizeVertical"/></mousebind>
      <mousebind button="Right" action="Click"><action name="ToggleMaximizeHorizontal"/></mousebind>
    </context>
    <context name="Close"><mousebind button="Left" action="Click"><action name="Close"/></mousebind></context>
    <context name="Desktop">
      <mousebind button="Up" action="Click"><action name="GoToDesktop"><to>previous</to></action></mousebind>
      <mousebind button="Down" action="Click"><action name="GoToDesktop"><to>next</to></action></mousebind>
    </context>
    <context name="Root">
      <mousebind button="Middle" action="Press"><action name="ShowMenu"><menu>client-list-combined-menu</menu></action></mousebind>
      <mousebind button="Right" action="Press"><action name="ShowMenu"><menu>root-menu</menu></action></mousebind>
    </context>
  </mouse>

  <menu>
    <file>menu.xml</file>
    <hideDelay>200</hideDelay>
    <middle>no</middle>
    <submenuShowDelay>100</submenuShowDelay>
    <showIcons>yes</showIcons>
  </menu>

  <applications/>

</openbox_config>
# Hammerhead Openbox theme - Zygaena marine-dark identity
# Installed to $PREFIX/share/themes/Hammerhead/openbox-3/themerc

window.active.title.bg: flat solid
window.active.title.bg.color: #12303a

window.inactive.title.bg: flat solid
window.inactive.title.bg.color: #0d1117

window.active.label.bg: parentrelative
window.inactive.label.bg: parentrelative

window.active.label.text.color: #cfe0e0
window.inactive.label.text.color: #5a7575

window.active.title.separator.color: #1fb6b6
window.inactive.title.separator.color: #0d1117

window.active.border.color: #1fb6b6
window.inactive.border.color: #0d1117

window.active.handle.bg: flat solid
window.active.handle.bg.color: #12303a
window.inactive.handle.bg: flat solid
window.inactive.handle.bg.color: #0d1117

window.active.grip.bg: flat solid
window.active.grip.bg.color: #1fb6b6
window.inactive.grip.bg: flat solid
window.inactive.grip.bg.color: #0d1117

window.active.button.unpressed.bg: flat solid
window.active.button.unpressed.bg.color: #12303a
window.active.button.pressed.bg: flat solid
window.active.button.pressed.bg.color: #1fb6b6
window.active.button.disabled.bg: flat solid
window.active.button.disabled.bg.color: #0d1117
window.active.button.hover.bg: flat solid
window.active.button.hover.bg.color: #3fd0d0

window.inactive.button.unpressed.bg: flat solid
window.inactive.button.unpressed.bg.color: #0d1117
window.inactive.button.pressed.bg: flat solid
window.inactive.button.pressed.bg.color: #1fb6b6
window.inactive.button.disabled.bg: flat solid
window.inactive.button.disabled.bg.color: #0d1117
window.inactive.button.hover.bg: flat solid
window.inactive.button.hover.bg.color: #3fd0d0

window.active.button.unpressed.image.color: #cfe0e0
window.active.button.pressed.image.color: #05080d
window.active.button.disabled.image.color: #5a7575
window.active.button.hover.image.color: #05080d
window.inactive.button.unpressed.image.color: #5a7575
window.inactive.button.pressed.image.color: #05080d
window.inactive.button.disabled.image.color: #5a7575
window.inactive.button.hover.image.color: #05080d

border.width: 2
padding.width: 2
padding.height: 2
window.client.padding.width: 0
window.handle.width: 6
window.label.text.justify: left

menu.items.bg: flat solid
menu.items.bg.color: #0d1117
menu.items.text.color: #cfe0e0
menu.items.disabled.text.color: #5a7575
menu.items.active.bg: flat solid
menu.items.active.bg.color: #12303a
menu.items.active.text.color: #3fd0d0
menu.border.color: #1fb6b6
menu.border.width: 1
menu.separator.color: #1fb6b6
menu.separator.padding.width: 6
menu.separator.padding.height: 3

menu.title.bg: flat solid
menu.title.bg.color: #12303a
menu.title.text.color: #cfe0e0
menu.title.text.justify: left

osd.bg: flat solid
osd.bg.color: #0d1117
osd.border.color: #1fb6b6
osd.border.width: 1
osd.label.bg: parentrelative
osd.label.text.color: #cfe0e0

window.active.shadow: false
window.inactive.shadow: false

font: shadow=n
font: place=ActiveWindow
font: family=sans
font: size=9
font: weight=bold
font: slant=normal

font: place=InactiveWindow
font: family=sans
font: size=9
font: weight=normal
font: slant=normal

font: place=MenuHeader
font: family=sans
font: size=9
font: weight=bold

font: place=MenuItem
font: family=sans
font: size=9
font: weight=normal

font: place=OnScreenDisplay
font: family=sans
font: size=9
font: weight=bold
#---------------------------------------------
# Hammerhead tint2 panel - Zygaena marine-dark identity
# Installed to $PREFIX/etc/xdg/tint2/tint2rc
#
# Layout adapted from CrunchBang++'s tint2rc (github.com/CBPP/cbpp-configs,
# simon-weber/crunchbang-conf): bottom panel, left launcher block, centered
# taskbar, right-hand systray + two-line clock, teal active-task highlight.
# No battery/brightness applets (headless/Xvfb-safe). Restyled to our
# marine-dark palette, not CBPP's grey.
#---------------------------------------------

#-------------------------------------
# Backgrounds
# bg_color_0: panel background
rounded = 0
border_width = 0
background_color = #0d1117 88
border_color = #1fb6b6 0

rounded = 3
border_width = 1
background_color = #12303a 100
border_color = #1fb6b6 70

rounded = 3
border_width = 0
background_color = #1fb6b6 25
border_color = #1fb6b6 0

rounded = 0
border_width = 0
background_color = #0d1117 0
border_color = #1fb6b6 0

#-------------------------------------
# Panel
panel_items = LTSC
panel_size = 100% 30
panel_margin = 0 0
panel_padding = 6 0 8
panel_background_id = 1
panel_position = bottom center horizontal
panel_layer = top
panel_monitor = all
autohide = 0
strut_policy = follow_size
panel_dock = 0
wm_menu = 1
panel_window_name = tint2
disable_transparency = 0
mouse_effects = 1

#-------------------------------------
# Launcher
launcher_padding = 6 3 8
launcher_background_id = 4
launcher_icon_size = 22
launcher_icon_theme_override = 0
launcher_item_app = /usr/local/share/applications/hh-terminal.desktop
launcher_item_app = /usr/local/share/applications/hh-files.desktop
launcher_item_app = /usr/local/share/applications/hh-editor.desktop

#-------------------------------------
# Taskbar
taskbar_mode = multi_desktop
taskbar_hide_if_empty = 0
taskbar_padding = 4 2 4
taskbar_background_id = 0
taskbar_active_background_id = 0
taskbar_name = 1
taskbar_name_padding = 8 3
taskbar_name_background_id = 0
taskbar_name_active_background_id = 3
taskbar_name_font = sans bold 9
taskbar_name_font_color = #5a7575 100
taskbar_name_active_font_color = #1fb6b6 100
taskbar_distribute_size = 1
#-------------------------------------
# Task
task_text = 1
task_icon = 1
task_centered = 1
task_maximum_size = 180 28
task_padding = 6 2
task_background_id = 0
task_active_background_id = 2
task_urgent_background_id = 2
task_font = sans 9
task_font_color = #cfe0e0 100
task_active_font_color = #3fd0d0 100
task_urgent_font_color = #3fd0d0 100
task_tooltip = 1

#-------------------------------------
# Clock (two-line, CBPP-style: time over date)
time1_format = %H:%M
time2_format = %a %d %b
time1_font = sans bold 9
time2_font = sans 7
clock_font_color = #cfe0e0 100
clock_padding = 8 0
clock_background_id = 0
clock_tooltip = %A, %d %B %Y

#-------------------------------------
# System tray
systray_padding = 4 2 8
systray_background_id = 0
systray_sort = ascending
systray_icon_size = 18
systray_icon_asb = 100 0 0

#-------------------------------------
# Tooltips
tooltip_padding = 4 4
tooltip_show_timeout = 0.5
tooltip_hide_timeout = 0.1
tooltip_background_id = 1
tooltip_font_color = #cfe0e0 100
tooltip_font = sans 8
/*
 * wallpaper-gen.c - Zygaena marine-dark wallpaper generator.
 *
 * Renders a 1920x1080 PNG: deep-ocean vertical gradient, low-alpha
 * concentric sonar arcs from a lower-left origin, a low-alpha stylized
 * hammerhead-shark silhouette, and the HAMMERHEAD/ZYGAENA wordmark in
 * the lower-right corner.
 *
 * Build: gcc wallpaper-gen.c $(pkg-config --cflags --libs cairo) -lm -o wg
 * Usage: ./wg /path/to/output.png
 */
#include <cairo.h>
#include <math.h>
#include <stdio.h>

#define W 1920
#define H 1080

/* Zygaena marine-dark palette */
#define BG_TOP_R    0x05/255.0
#define BG_TOP_G    0x08/255.0
#define BG_TOP_B    0x0d/255.0
#define BG_BOT_R    0x0a/255.0
#define BG_BOT_G    0x27/255.0
#define BG_BOT_B    0x33/255.0
#define TEAL_R      0x1f/255.0
#define TEAL_G      0xb6/255.0
#define TEAL_B      0xb6/255.0
#define TEAL_BR_R   0x3f/255.0
#define TEAL_BR_G   0xd0/255.0
#define TEAL_BR_B   0xd0/255.0
#define MUTED_R     0x5a/255.0
#define MUTED_G     0x75/255.0
#define MUTED_B     0x75/255.0

static void
draw_background(cairo_t *cr)
{
    cairo_pattern_t *grad = cairo_pattern_create_linear(0, 0, 0, H);
    cairo_pattern_add_color_stop_rgb(grad, 0.0, BG_TOP_R, BG_TOP_G, BG_TOP_B);
    cairo_pattern_add_color_stop_rgb(grad, 1.0, BG_BOT_R, BG_BOT_G, BG_BOT_B);
    cairo_set_source(cr, grad);
    cairo_paint(cr);
    cairo_pattern_destroy(grad);
}

static void
draw_sonar_arcs(cairo_t *cr)
{
    /* Origin lower-left, off canvas a bit so rings sweep across the
     * bottom-left quadrant. */
    double cx = -80, cy = H + 80;
    int rings = 5;
    double base_r = 260;
    double step_r = 220;

    for (int i = 0; i < rings; i++) {
        double alpha = 0.12 - (i * (0.06 / (rings - 1)));
        if (alpha < 0.06) alpha = 0.06;
        cairo_set_source_rgba(cr, TEAL_R, TEAL_G, TEAL_B, alpha);
        cairo_set_line_width(cr, 2.0);
        cairo_arc(cr, cx, cy, base_r + i * step_r, -M_PI / 2.2, 0.15);
        cairo_stroke(cr);
    }
}

/*
 * Stylized hammerhead-shark silhouette: a wide flattened "hammer" head
 * bar with an eye-dot at each end, a tapering dorsal body, and a
 * crescent tail - all in one low-alpha teal fill, large and off-center
 * (upper-left-of-center so it doesn't collide with the wordmark).
 */
static void
draw_hammerhead_motif(cairo_t *cr)
{
    double ox = 560, oy = 430;   /* motif origin (center of the head bar) */
    double scale = 1.55;

    cairo_save(cr);
    cairo_translate(cr, ox, oy);
    cairo_scale(cr, scale, scale);
    cairo_set_source_rgba(cr, TEAL_R, TEAL_G, TEAL_B, 0.10);

    /* Hammer head: a wide, slightly bowed bar. */
    cairo_move_to(cr, -260, 0);
    cairo_curve_to(cr, -180, -34,  180, -34,  260, 0);
    cairo_curve_to(cr,  180,  34, -180,  34, -260, 0);
    cairo_close_path(cr);
    cairo_fill(cr);

    /* Tapering body/tail sweeping down-right from the head's center. */
    cairo_move_to(cr, -40, 18);
    cairo_curve_to(cr, 120, 60,  260, 160,  360, 340);
    cairo_curve_to(cr, 380, 380,  340, 400,  300, 380);
    cairo_curve_to(cr, 220, 220,  90, 100, -40, 54);
    cairo_close_path(cr);
    cairo_fill(cr);

    /* Tail fluke. */
    cairo_move_to(cr, 340, 320);
    cairo_curve_to(cr, 400, 330, 440, 300, 470, 250);
    cairo_curve_to(cr, 450, 310, 420, 360, 380, 400);
    cairo_curve_to(cr, 360, 370, 345, 345, 340, 320);
    cairo_close_path(cr);
    cairo_fill(cr);

    /* Eye-dots at each end of the hammer bar. */
    cairo_arc(cr, -235, 0, 10, 0, 2 * M_PI);
    cairo_fill(cr);
    cairo_arc(cr, 235, 0, 10, 0, 2 * M_PI);
    cairo_fill(cr);

    cairo_restore(cr);
}

/* Draw text with manual letter-spacing (cairo toy text API has no
 * built-in tracking control). */
static void
draw_tracked_text(cairo_t *cr, const char *s, double x, double y, double tracking)
{
    cairo_text_extents_t ext;
    double cx = x;
    char buf[2] = {0, 0};

    for (const char *p = s; *p; p++) {
        buf[0] = *p;
        cairo_text_extents(cr, buf, &ext);
        cairo_move_to(cr, cx, y);
        cairo_show_text(cr, buf);
        cx += ext.x_advance + tracking;
    }
}

static void
draw_wordmark(cairo_t *cr)
{
    cairo_text_extents_t ext;

    cairo_select_font_face(cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL,
        CAIRO_FONT_WEIGHT_BOLD);
    cairo_set_font_size(cr, 64);
    cairo_set_source_rgb(cr, TEAL_R, TEAL_G, TEAL_B);

    /* Measure full tracked width to right-align at x = W - 120. */
    const char *word = "HAMMERHEAD";
    double tracking = 8.0;
    double total_w = 0;
    char buf[2] = {0, 0};
    for (const char *p = word; *p; p++) {
        buf[0] = *p;
        cairo_text_extents(cr, buf, &ext);
        total_w += ext.x_advance + tracking;
    }
    total_w -= tracking;

    double x = W - 120 - total_w;
    double y = H - 150;
    draw_tracked_text(cr, word, x, y, tracking);

    /* Subtitle */
    cairo_select_font_face(cr, "sans-serif", CAIRO_FONT_SLANT_NORMAL,
        CAIRO_FONT_WEIGHT_NORMAL);
    cairo_set_font_size(cr, 22);
    cairo_set_source_rgb(cr, MUTED_R, MUTED_G, MUTED_B);

    const char *sub = "ZYGAENA";
    double sub_tracking = 6.0;
    double sub_w = 0;
    for (const char *p = sub; *p; p++) {
        buf[0] = *p;
        cairo_text_extents(cr, buf, &ext);
        sub_w += ext.x_advance + sub_tracking;
    }
    sub_w -= sub_tracking;

    draw_tracked_text(cr, sub, W - 120 - sub_w, y + 40, sub_tracking);
}

int
main(int argc, char **argv)
{
    const char *outpath = (argc > 1) ? argv[1] : "/tmp/hammerhead.png";

    cairo_surface_t *surface = cairo_image_surface_create(CAIRO_FORMAT_RGB24, W, H);
    cairo_t *cr = cairo_create(surface);

    draw_background(cr);
    draw_sonar_arcs(cr);
    draw_hammerhead_motif(cr);
    draw_wordmark(cr);

    cairo_status_t st = cairo_surface_write_to_png(surface, outpath);
    if (st != CAIRO_STATUS_SUCCESS) {
        fprintf(stderr, "write_to_png failed: %s\n", cairo_status_to_string(st));
        cairo_destroy(cr);
        cairo_surface_destroy(surface);
        return 1;
    }

    printf("wrote %s (%dx%d)\n", outpath, W, H);

    cairo_destroy(cr);
    cairo_surface_destroy(surface);
    return 0;
}