UI: ControlView: Do not display the text of the other 'add' buttons when all...

UI: ControlView: Do not display the text of the other 'add' buttons when all buttons are overlapped, otherwise you will see the text of the other buttons in the dark mode (there the background is transparent). #55

src/qml/ControlPane/ControlView.qml

@@ -123,7 +123,7 @@ ControlPanel{
         visible: UserManagment.currentUser.havePermission(Permission.ADD_CONTROL_ITEM);
         z:1.3
         id: switchGroup
-        text:"Switchgroup"
+        text: y === programm.y ? "" : "Switchgroup"
         anchors.right: programm.right
         anchors.left: programm.left
         Behavior on y{
@@ -135,7 +135,7 @@ ControlPanel{
         visible: UserManagment.currentUser.havePermission(Permission.ADD_CONTROL_ITEM);
         z:1.3
         id: dimmerGroup
-        text:"Dimmergroup"
+        text: y === programm.y ? "" : "Dimmergroup"
         anchors.right: programm.right
         anchors.left: programm.left
         Behavior on y{
@@ -147,7 +147,7 @@ ControlPanel{
         visible: UserManagment.currentUser.havePermission(Permission.ADD_CONTROL_ITEM);
         z:1.3
         id: programBlock
-        text:"ProgramBlock"
+        text: y === programm.y ? "" : "ProgramBlock"
         anchors.right: programm.right
         anchors.left: programm.left
         Behavior on y{