1 files changed, 94 insertions, 0 deletions
diff --git a/xpybar/config/adjbrilliance b/xpybar/config/adjbrilliance
new file mode 100644
index 0000000..0ffb09d
--- /dev/null
+++ b/xpybar/config/adjbrilliance
@@ -0,0 +1,94 @@
+# -*- python -*-
+import os
+import sys
+import time
+import signal
+
+OUTPUT, HEIGHT, YPOS, TOP = 0, 2 * 12, 0, True
+
+LEFT_BUTTON = 1
+MIDDLE_BUTTON = 2
+RIGHT_BUTTON = 3
+SCROLL_UP = 4
+SCROLL_DOWN = 5
+SCROLL_LEFT = 6
+SCROLL_RIGHT = 7
+FORWARD_BUTTON = 8                                                                                                               
+BACKWARD_BUTTON = 9
+
+path = os.getenv('XDG_RUNTIME_DIR', '/tmp') + '/.xpybar.brilliance'
+pid = None
+pending = False
+
+def sigchld(*_):
+    global pid, pending
+    if pid is not None:
+        r, _ = os.waitpid(-1, 0)
+        if r == pid:
+            pid = None
+    if pending:
+        pending = False
+        set_brilliance()
+    else:
+        with open(path, 'wb') as file:
+            return file.write(('%f' % brilliance).encode('utf-8'))
+
+def get_brilliance():
+    try:
+        with open(path, 'rb') as file:
+            return float(file.read().decode('utf-8', 'strict'))
+    except:
+        return 1
+
+def set_brilliance():
+    global pid, pending
+    if pid is None:
+        pid = os.fork()
+        if not pid:
+            if brilliance == 1:
+                os.execlp('cg-brilliance', 'cg-brilliance', '-x')
+            else:
+                os.execlp('cg-brilliance', 'cg-brilliance', '--', '%f' % brilliance)
+            sys.exit(1)
+    else:
+        pending = True
+
+signal.signal(signal.SIGCHLD, sigchld)
+brilliance = get_brilliance()
+
+def redraw():
+    x = int(bar.width * brilliance + 0.5)
+    bar.change_colour(bar.foreground)
+    bar.window.fill_rectangle(bar.gc, 0, 0, x, HEIGHT)
+    bar.change_colour(bar.background)
+    bar.window.fill_rectangle(bar.gc, x, 0, bar.width - x, HEIGHT)
+
+import x as _x
+_get_event_mask = _x.get_event_mask
+def get_event_mask():
+    return _get_event_mask() | Xlib.X.ButtonMotionMask
+_x.get_event_mask = get_event_mask
+
+def unhandled_event(e):
+    global brilliance
+    if isinstance(e, Xlib.protocol.event.ButtonPress):
+        button, x = e.detail, e.event_x
+        if button == LEFT_BUTTON:
+            brilliance = min(max(0, x / bar.width), 1)
+            set_brilliance()
+            bar.invalidate()
+        elif button == SCROLL_UP:
+            brilliance = min(brilliance + 0.05, 1)
+            set_brilliance()
+            bar.invalidate()
+        elif button == SCROLL_DOWN:
+            brilliance = max(brilliance - 0.05, 0)
+            set_brilliance()
+            bar.invalidate()
+        elif button in (MIDDLE_BUTTON, RIGHT_BUTTON, FORWARD_BUTTON, BACKWARD_BUTTON):
+            raise KeyboardInterrupt()
+    elif isinstance(e, Xlib.protocol.event.MotionNotify):
+        if e.detail == 0:
+            brilliance = min(max(0, e.event_x / bar.width), 1)
+            set_brilliance()
+            bar.invalidate()