init: working version

modules/session/Background.qml

@@ -0,0 +1,51 @@
+import qs.config
+import QtQuick
+import QtQuick.Shapes
+
+Shape {
+    id: root
+
+    required property Item wrapper
+    readonly property real rounding: Config.border.rounding
+    readonly property bool flatten: wrapper.height < rounding * 2
+    readonly property real roundingY: flatten ? wrapper.height / 2 : rounding
+
+    ShapePath {
+        startX: -root.rounding + 0.5
+        startY: -0.5
+        strokeWidth: -1
+        fillColor: Config.colors.bg
+
+        PathArc {
+            relativeX: root.rounding
+            relativeY: root.roundingY
+            radiusX: root.rounding
+            radiusY: Math.min(root.rounding, root.wrapper.height)
+        }
+        PathLine {
+            relativeX: 0
+            relativeY: root.wrapper.height - root.roundingY * 2
+        }
+        PathArc {
+            relativeX: root.rounding
+            relativeY: root.roundingY
+            radiusX: root.rounding
+            radiusY: Math.min(root.rounding, root.wrapper.height)
+            direction: PathArc.Counterclockwise
+        }
+        PathLine {
+            relativeX: root.wrapper.width - root.rounding * 2
+            relativeY: 0
+        }
+        PathArc {
+            relativeX: root.rounding
+            relativeY: root.rounding
+            radiusX: root.rounding
+            radiusY: root.rounding
+        }
+        PathLine {
+            relativeX: 0
+            relativeY: -root.wrapper.height - root.rounding
+        }
+    }
+}