Kde: Add splashscreen theme

kde/look-and-feel/contents/splash/Splash.qml

@@ -0,0 +1,70 @@
+import QtQuick 2.5
+
+
+Image {
+    id: root
+    source: "images/background.png"
+
+    property int stage
+
+    onStageChanged: {
+        if (stage == 1) {
+            introAnimation.running = true
+        }
+    }
+
+
+    Item {
+        id: content
+        anchors.fill: parent
+        opacity: 0
+        TextMetrics {
+            id: units
+            text: "M"
+            property int gridUnit: boundingRect.height
+            property int largeSpacing: units.gridUnit
+            property int smallSpacing: Math.max(2, gridUnit/4)
+        }
+
+        Image {
+            id: logo
+            //match SDDM/lockscreen avatar positioning
+            property real size: units.gridUnit * 12
+
+            anchors.centerIn: parent
+
+            source: "images/sweetlogo.png"
+
+            sourceSize.width: size
+            sourceSize.height: size
+        }
+
+        Image {
+            id: busyIndicator
+            //in the middle of the remaining space
+            y: parent.height - (parent.height - logo.y) / 3 - height/2
+            anchors.horizontalCenter: parent.horizontalCenter
+            source: "images/busy.svg"
+            sourceSize.height: units.gridUnit * 3
+            sourceSize.width: units.gridUnit * 3
+            RotationAnimator on rotation {
+                id: rotationAnimator
+                from: 0
+                to: 360
+                duration: 800
+                loops: Animation.Infinite
+            }
+        }
+
+    }
+
+    OpacityAnimator {
+        id: introAnimation
+        running: false
+        target: content
+        from: 0
+        to: 1
+        duration: 1000
+        easing.type: Easing.InOutQuad
+    }
+}