add config page

package/contents/config/config.qml

@@ -0,0 +1,10 @@
+import QtQuick 2.0
+import org.kde.plasma.configuration 2.0
+
+ConfigModel {
+  ConfigCategory {
+    name: i18n("General")
+    icon: "configure"
+    source: "configGeneral.qml"
+  }
+}

package/contents/config/main.xml

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<kcfg xmlns="http://www.kde.org/standards/kcfg/1.0"
+      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+      xsi:schemaLocation="http://www.kde.org/standards/kcfg/1.0
+      http://www.kde.org/standards/kcfg/1.0/kcfg.xsd">
+  <kcfgfile name=""/>
+  
+  <group name="General">
+    <entry name="pollingrate" type="Int">
+      <default>10</default>
+      <min>2</min>
+      <max>60</max>
+    </entry>
+  </group>
+</kcfg>

package/contents/ui/configGeneral.qml

@@ -0,0 +1,24 @@
+import QtQuick 2.0
+import QtQuick.Controls 2.5 as QQC2
+import org.kde.kirigami 2.4 as Kirigami
+
+QQC2.Pane {
+  id: root
+
+  property alias cfg_pollingrate: pollingrate.value
+
+  Kirigami.FormLayout {
+    anchors.fill: parent
+    wideMode: false
+
+    QQC2.SpinBox {
+      id: pollingrate
+      Kirigami.FormData.label: i18nc("@label", "pollingrate in seconds:")
+      onValueChanged: {
+        console.log("cfg_pollingrate: " + cfg_pollingrate);
+      }
+      from: 2
+      to: 60
+    }
+  }
+}

package/contents/ui/main.qml

@@ -6,13 +6,14 @@ import org.kde.plasma.core 2.0 as PlasmaCore
 Item {
   id: main
 
+  property int pollingrate: Plasmoid.configuration.pollingrate
   property int batteryPercent: -2
 
   PlasmaCore.DataSource {
     id: hsSource
     engine: "executable"
     connectedSources: ["headsetcontrol -bc"]
-    interval: 2000
+    interval: pollingrate * 1e3
     onNewData: {
       if(data['exit_code'] > 0)
         return console.log('error lol');