Add charging indicator and pacman package, bump to 1.1.0

- Show charge/discharge power in watts, a battery graphic with charge
  bolt, a power history graph and the estimated time until full or
  remaining (respecting the 80 % charge limit) in the app, the panel
  widget, its tooltip and `predatorctl status`
- Add packaging/arch/PKGBUILD that builds a pacman package; the kernel
  module ships as DKMS source and is rebuilt for every kernel
- Bump version to 1.1.0

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

predator_control/gui/app.py

@@ -17,7 +17,7 @@ from PySide6.QtWidgets import (QApplication, QButtonGroup, QCheckBox, QComboBox,
 from .. import APP_NAME, __version__, layout
 from ..client import Client, DaemonError, read_state
 from . import theme
-from .widgets import Bar, Card, ColorRow, CurveEditor, Gauge, KeyboardPainter
+from .widgets import Bar, Card, ChargeIndicator, ColorRow, CurveEditor, Gauge, KeyboardPainter, format_minutes
 
 PAGES = [
     ("home", "Dashboard"),
@@ -146,8 +146,9 @@ class HomePage(Page):
         quick.body.addWidget(self.l_profile)
         self.l_fans = _muted("")
         quick.body.addWidget(self.l_fans)
-        self.l_bat = _muted("")
-        quick.body.addWidget(self.l_bat)
+        self.charge = ChargeIndicator(compact=True)
+        self.charge.setFixedHeight(54)
+        quick.body.addWidget(self.charge)
         b = QPushButton("Next profile")
         b.setObjectName("primary")
         b.clicked.connect(self._cycle)
@@ -182,7 +183,7 @@ class HomePage(Page):
         self.l_profile.setText(PROFILE_INFO.get(st["profile"], (st["profile"],))[0])
         self.l_fans.setText("Fans: %s" % st["config"]["fans"]["mode"].capitalize())
         b = st["battery"]
-        self.l_bat.setText("Battery %s %% · %s" % (b.get("capacity"), "AC" if b.get("ac_online") else "on battery"))
+        self.charge.set_battery(b)
 
 
 class PerformancePage(Page):
@@ -595,14 +596,13 @@ class BatteryPage(Page):
         self.lay.addWidget(_title("Battery", "Battery status and health features"))
         row = QHBoxLayout()
         row.setSpacing(16)
-        info = Card("Status")
-        self.cap = QLabel("–")
-        self.cap.setObjectName("big")
-        info.body.addWidget(self.cap)
+        info = Card("Charging")
+        self.indicator = ChargeIndicator()
+        info.body.addWidget(self.indicator)
         self.details = _muted("")
         info.body.addWidget(self.details)
         info.body.addStretch(1)
-        row.addWidget(info, 1)
+        row.addWidget(info, 3)
         health = Card("Battery health")
         self.limit = QCheckBox("Limit charging to 80 %")
         self.limit.clicked.connect(lambda v: self._set("set_battery_limit", v))
@@ -648,14 +648,17 @@ class BatteryPage(Page):
     def update_state(self, st):
         b = st["battery"]
         if not b.get("present"):
-            self.cap.setText("No battery")
+            self.details.setText("No battery found")
             return
-        self.cap.setText("%s %%" % b.get("capacity"))
-        lines = ["Status: %s" % b.get("status"),
-                 "Power source: %s" % ("AC adapter" if b.get("ac_online") else "battery"),
-                 "Power draw: %s W" % b.get("power_w"),
+        self.indicator.set_battery(b)
+        rate = "Charge rate" if b.get("charging") else "Power draw"
+        lines = ["Power source: %s" % ("AC adapter" if b.get("ac_online") else "battery"),
+                 "%s: %s W" % (rate, b.get("power_w") if b.get("power_w") is not None else "–"),
                  "Health: %s %% of design capacity" % b.get("health"),
                  "Charge cycles: %s" % b.get("cycles")]
+        if b.get("minutes_left") is not None:
+            lines.insert(2, "%s: %s" % ("Time until full" + (" (80 % limit)" if st.get("battery_limit") else "")
+                                        if b.get("charging") else "Time remaining", format_minutes(b["minutes_left"])))
         self.details.setText("\n".join(lines))
 
 
@@ -826,6 +829,9 @@ class MainWindow(QMainWindow):
         self.banner.hide()
         self.state = st
         self.stack.currentWidget().update_state(st)
+        bat_page = self.pages["battery"][0]
+        if self.stack.currentWidget() is not bat_page:
+            bat_page.indicator.set_battery(st["battery"])  # keep the power history going
         s = st["sensors"]
         self.footer.setText("%s\nCPU %s °C · GPU %s" % (
             PROFILE_INFO.get(st["profile"], (st["profile"],))[0], s.get("cpu_temp"),